{"id":11755,"date":"2023-05-23T08:55:16","date_gmt":"2023-05-23T00:55:16","guid":{"rendered":"https:\/\/firstmold.com\/?p=11755"},"modified":"2026-02-03T09:03:54","modified_gmt":"2026-02-03T01:03:54","slug":"structural-design-of-plastic-products","status":"publish","type":"post","link":"https:\/\/firstmold.com\/es\/tips\/structural-design-of-plastic-products\/","title":{"rendered":"Gu\u00eda completa para el dise\u00f1o estructural de productos pl\u00e1sticos"},"content":{"rendered":"<p class=\"wp-block-paragraph\">La parte m\u00e1s fundamental de los productos de pl\u00e1stico es en realidad el dise\u00f1o estructural del producto de pl\u00e1stico. Mucha gente dice que el dise\u00f1o estructural de los productos de pl\u00e1stico es dif\u00edcil, pero \u00bfqu\u00e9 es exactamente lo que lo hace dif\u00edcil?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Anteriormente hemos conocido el proceso de desarrollo de productos de pl\u00e1stico. A partir del engorroso proceso, no es dif\u00edcil ver que un excelente dise\u00f1o de productos de pl\u00e1stico no s\u00f3lo debe adaptarse a las demandas cambiantes y controlar los costes, sino tambi\u00e9n garantizar una buena eficiencia de producci\u00f3n. Adem\u00e1s, debido a la complejidad, fiabilidad y precisi\u00f3n del dise\u00f1o, la carga de trabajo del dise\u00f1o estructural del producto es considerable. Requiere que los dise\u00f1adores posean magn\u00edficas habilidades t\u00e9cnicas y de ingenier\u00eda, una aguda visi\u00f3n del mercado y atenci\u00f3n a las tecnolog\u00edas emergentes y a las demandas en constante cambio.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dejando a un lado las demandas cambiantes y el agudo conocimiento del mercado, el dise\u00f1o estructural del propio producto tambi\u00e9n requiere la consideraci\u00f3n de muchos aspectos. La siguiente gu\u00eda se\u00f1ala claramente estos aspectos:<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-01-wall-thickness\">01. Espesor de la pared <\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Para los componentes grandes, el grosor de la pared en el dise\u00f1o estructural suele oscilar entre 2,4 y 3,2 mm, mientras que para los componentes m\u00e1s peque\u00f1os, ronda 1,0 mm, con las dimensiones espec\u00edficas que se adhieren a los requisitos de dise\u00f1o del producto. El grosor de la pared debe ser lo m\u00e1s uniforme posible. En circunstancias especiales, algunas zonas pueden ser ligeramente m\u00e1s gruesas o m\u00e1s finas, pero es necesaria una transici\u00f3n gradual (se recomienda que el tama\u00f1o de la transici\u00f3n sea m\u00e1s de 5 veces el grosor de la pared del producto) para evitar marcas de tensi\u00f3n en la superficie del producto moldeado por inyecci\u00f3n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-factors-affecting-wall-thickness-selection\">Factores que afectan a la selecci\u00f3n del grosor de la pared<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">a) El material pl\u00e1stico utilizado. Los diferentes materiales tienen diferentes <a href=\"https:\/\/firstmold.com\/es\/guides\/plastic-shrinkage\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>\u00edndices de contracci\u00f3n<\/strong><\/a> y fluidez durante <a href=\"https:\/\/firstmold.com\/es\/guides\/what-is-injection-molding\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>moldeo por inyecci\u00f3n<\/strong><\/a>, lo que afecta al espesor de pared recomendado. (Para el grosor de la c\u00e1scara, los datos emp\u00edricos pueden ser aproximadamente la dimensi\u00f3n m\u00e1s grande de la m\u00e1quina \/ 100mm).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">b) Las fuerzas externas soportadas. Cuanto mayor sea la fuerza, m\u00e1s gruesa deber\u00e1 ser la pared. En casos especiales, deber\u00e1n utilizarse piezas met\u00e1licas o realizarse comprobaciones de resistencia.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Los valores recomendados para el grosor de las paredes de los productos incluyen:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Materiales pl\u00e1sticos<\/td><td class=\"has-text-align-center\" data-align=\"center\">Espesor m\u00ednimo de la pared<\/td><td class=\"has-text-align-center\" data-align=\"center\">Espesor de pared recomendado para piezas peque\u00f1as<\/td><td class=\"has-text-align-center\" data-align=\"center\">Espesor de pared recomendado para piezas de tama\u00f1o medio<\/td><td class=\"has-text-align-center\" data-align=\"center\">Espesor de pared recomendado para piezas grandes<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/firstmold.com\/es\/guides\/pa-plastic\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Nylon<\/strong><\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">0.45<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.76<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.4~3.2<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/firstmold.com\/es\/guides\/pe-plastic\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PE<\/strong><\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">0.6<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.25<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.6<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.4~3.2<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PS<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.75<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.25<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.6<\/td><td class=\"has-text-align-center\" data-align=\"center\">3.2~5.4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/firstmold.com\/es\/guides\/pmma-plastic\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PMM<\/strong><\/a><a href=\"https:\/\/firstmold.com\/es\/guides\/pmma-plastic\/\"><strong>A<\/strong><\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">0.8<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.2<\/td><td class=\"has-text-align-center\" data-align=\"center\">4~6.5<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/firstmold.com\/es\/guides\/pvc-plastic\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PVC<\/strong><\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">1.2<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.6<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.8<\/td><td class=\"has-text-align-center\" data-align=\"center\">3.2~5.8<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/firstmold.com\/es\/guides\/pp-plastic\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PP<\/strong><\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">0.85<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.54<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.75<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.4~3.2<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/firstmold.com\/es\/guides\/pc-plastic\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PC<\/strong><\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">0.95<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.8<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.3<\/td><td class=\"has-text-align-center\" data-align=\"center\">3~4.5<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/firstmold.com\/es\/guides\/pom-plastic\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>POM<\/strong><\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">0.8<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.4<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.6<\/td><td class=\"has-text-align-center\" data-align=\"center\">3.2~5.4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/firstmold.com\/es\/guides\/abs-plastic\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>ABS<\/strong><\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">0.8<\/td><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.3<\/td><td class=\"has-text-align-center\" data-align=\"center\">3.2~6<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">c) Normas de seguridad. Por ejemplo, requisitos de resistencia a la presi\u00f3n (cuanto m\u00e1s gruesa sea la pared, mayor ser\u00e1 la resistencia a la presi\u00f3n), requisitos de inflamabilidad, etc.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-02-reinforcing-ribs\">02. Costillas de refuerzo<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La mayor\u00eda de los dise\u00f1os estructurales de productos de pl\u00e1stico tienen nervaduras de refuerzo porque las nervaduras pueden aumentar la resistencia sin aumentar el grosor total de la pared, lo que es especialmente \u00fatil para componentes grandes y piezas sometidas a tensi\u00f3n, y tambi\u00e9n puede evitar la deformaci\u00f3n del producto. El grosor de las nervaduras de refuerzo suele ser de 0,5-0,75 veces el del grosor total de la pared (se recomienda que sea inferior a 0,6 veces); si es superior a 0,75 veces, el producto es propenso a encogerse.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1000\" height=\"700\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Two-different-types-of-shrinkage.webp\" alt=\"Dos tipos diferentes de contracci\u00f3n\" class=\"wp-image-18365\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Two-different-types-of-shrinkage.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Two-different-types-of-shrinkage-300x210.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Two-different-types-of-shrinkage-768x538.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Two-different-types-of-shrinkage-18x12.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Dos tipos diferentes de contracci\u00f3n<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Para piezas de pl\u00e1stico con altos requisitos de apariencia (superficie brillante), se recomienda que el grosor inferior de las nervaduras de refuerzo de la parte posterior sea B\u22640,5T. Si se tiene confianza en el dise\u00f1o del molde y en los ajustes posteriores del proceso, se puede dise\u00f1ar B&gt;0,56T, pero se recomienda no superar 0,7T, ya que ser\u00e1 dif\u00edcil de ajustar posteriormente. Es importante tener en cuenta que el grosor de las nervaduras de refuerzo para diferentes materiales pl\u00e1sticos no sigue necesariamente B\u22640,5T.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"3\">Referencia de dise\u00f1o para el grosor de los nervios de refuerzo (en relaci\u00f3n con el grosor de la pared base)<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">mateirals<\/td><td class=\"has-text-align-center\" data-align=\"center\">Marca m\u00ednima de hundimiento<\/td><td class=\"has-text-align-center\" data-align=\"center\">Ligera marca de hundimiento<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PC<\/td><td class=\"has-text-align-center\" data-align=\"center\">50%<\/td><td class=\"has-text-align-center\" data-align=\"center\">66%<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">ABS<\/td><td class=\"has-text-align-center\" data-align=\"center\">40%<\/td><td class=\"has-text-align-center\" data-align=\"center\">60%<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PC+ABS<\/td><td class=\"has-text-align-center\" data-align=\"center\">50%<\/td><td class=\"has-text-align-center\" data-align=\"center\">66%<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PA<\/td><td class=\"has-text-align-center\" data-align=\"center\">30%<\/td><td class=\"has-text-align-center\" data-align=\"center\">40%<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PA reforzada<\/td><td class=\"has-text-align-center\" data-align=\"center\">33%<\/td><td class=\"has-text-align-center\" data-align=\"center\">50%<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PP<\/td><td class=\"has-text-align-center\" data-align=\"center\">30%<\/td><td class=\"has-text-align-center\" data-align=\"center\">40%<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PP reforzado<\/td><td class=\"has-text-align-center\" data-align=\"center\">33%<\/td><td class=\"has-text-align-center\" data-align=\"center\">50%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-aspects-of-reinforcement-design-that-need-attention\">Aspectos del dise\u00f1o del refuerzo que requieren atenci\u00f3n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">1. Cuando varias nervaduras de refuerzo se cruzan y conectan, se debe tener cuidado para prevenir la acumulaci\u00f3n local de material y evitar marcas de contracci\u00f3n en el dorso, recomend\u00e1ndose el siguiente m\u00e9todo de dise\u00f1o.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"1000\" height=\"700\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Comparison-of-design-types-for-reinforcement-crossings-in-structural-design.webp\" alt=\"Comparaci\u00f3n de los tipos de dise\u00f1o para los cruces de armaduras en el dise\u00f1o estructural\" class=\"wp-image-18366\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Comparison-of-design-types-for-reinforcement-crossings-in-structural-design.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Comparison-of-design-types-for-reinforcement-crossings-in-structural-design-300x210.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Comparison-of-design-types-for-reinforcement-crossings-in-structural-design-768x538.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Comparison-of-design-types-for-reinforcement-crossings-in-structural-design-18x12.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Comparaci\u00f3n de los tipos de dise\u00f1o para los cruces de armaduras en el dise\u00f1o estructural<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">2. Cuando conecte las nervaduras de refuerzo a la pared exterior, intente mantener las nervaduras perpendiculares a la pared exterior.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"919\" height=\"270\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Reinforcing-ribs-remain-perpendicular-to-the-outer-wall.webp\" alt=\"Las nervaduras de refuerzo permanecen perpendiculares a la pared exterior\" class=\"wp-image-18367\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Reinforcing-ribs-remain-perpendicular-to-the-outer-wall.webp 919w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Reinforcing-ribs-remain-perpendicular-to-the-outer-wall-300x88.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Reinforcing-ribs-remain-perpendicular-to-the-outer-wall-768x226.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Reinforcing-ribs-remain-perpendicular-to-the-outer-wall-18x5.webp 18w\" sizes=\"(max-width: 919px) 100vw, 919px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">3. Si el espacio lo permite, evite dise\u00f1ar nervios o resaltes de refuerzo en pendientes pronunciadas, y tome medidas para evitar la contracci\u00f3n si es inevitable.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"977\" height=\"373\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Anti-sink-mark-treatment.webp\" alt=\"Tratamiento antihuellas\" class=\"wp-image-18368\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Anti-sink-mark-treatment.webp 977w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Anti-sink-mark-treatment-300x115.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Anti-sink-mark-treatment-768x293.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Anti-sink-mark-treatment-18x7.webp 18w\" sizes=\"(max-width: 977px) 100vw, 977px\" \/><figcaption class=\"wp-element-caption\">Tratamiento antihuellas<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">4. Si el grosor de los nervios de refuerzo no es proporcional al grosor de la pared principal y no pueden modificarse los par\u00e1metros y la ubicaci\u00f3n, considere la posibilidad de alterar el aspecto exterior para reducir la visibilidad de las marcas de contracci\u00f3n (este m\u00e9todo es dif\u00edcil de controlar y debe utilizarse con precauci\u00f3n).<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"438\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Reduced-visibility-of-sink-marks.webp\" alt=\"Menor visibilidad de las marcas de hundimiento\" class=\"wp-image-18369\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Reduced-visibility-of-sink-marks.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Reduced-visibility-of-sink-marks-300x131.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Reduced-visibility-of-sink-marks-768x336.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Reduced-visibility-of-sink-marks-18x8.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Menor visibilidad de las marcas de hundimiento<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-03-draft-angle\">03. \u00c1ngulo de giro<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Los productos de pl\u00e1stico requieren <a href=\"https:\/\/firstmold.com\/es\/guides\/draft-angle\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>\u00e1ngulo de calado<\/strong><\/a> en el dise\u00f1o estructural, salvo en aquellos con poca altura (como una placa plana) o requisitos especiales (pero cuando las paredes laterales son grandes y sin \u00e1ngulo de desmoldeo, se necesita una posici\u00f3n en hilera). El \u00e1ngulo de desmoldeo suele oscilar entre 0,5 y 5 grados, normalmente en torno a 2 grados, pero var\u00eda en funci\u00f3n del tama\u00f1o, la altura y la forma del producto, con el principio de garantizar un desmoldeo suave sin afectar a la funcionalidad.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">El \u00e1ngulo de inclinaci\u00f3n de la cavidad del molde debe ser generalmente 0,5 grados mayor que el del n\u00facleo del molde para garantizar que el producto permanezca en el n\u00facleo del molde al abrirse. Generalmente, \u00e1reas como <a href=\"https:\/\/firstmold.com\/es\/guides\/shut-off-and-kiss-off\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>cierres<\/strong><\/a>, <a href=\"https:\/\/firstmold.com\/es\/guides\/mold-inserts\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>insertos<\/strong><\/a>y los besos necesitan un \u00e1ngulo de giro.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En la tabla siguiente se recomiendan \u00e1ngulos de desmoldeo para distintos materiales:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\" rowspan=\"2\">mateirals<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">\u00c1ngulo de calado<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">N\u00facleo del molde<\/td><td class=\"has-text-align-center\" data-align=\"center\">Cavidad del molde<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">ABS<\/td><td class=\"has-text-align-center\" data-align=\"center\">35'~1\u00b0<\/td><td class=\"has-text-align-center\" data-align=\"center\">40'~1\u00b020\u2032<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PS<\/td><td class=\"has-text-align-center\" data-align=\"center\">30'~1\u00b0<\/td><td class=\"has-text-align-center\" data-align=\"center\">35'~1\u00b030\u2032<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PC<\/td><td class=\"has-text-align-center\" data-align=\"center\">30~50\u2032<\/td><td class=\"has-text-align-center\" data-align=\"center\">35'~1\u00b0<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PP<\/td><td class=\"has-text-align-center\" data-align=\"center\">25~50<\/td><td class=\"has-text-align-center\" data-align=\"center\">30'~1\u00b0<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PE<\/td><td class=\"has-text-align-center\" data-align=\"center\">20~45\u2032<\/td><td class=\"has-text-align-center\" data-align=\"center\">25~45\u2032<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PMMA<\/td><td class=\"has-text-align-center\" data-align=\"center\">30'~1\u00b0<\/td><td class=\"has-text-align-center\" data-align=\"center\">35'~1\u00b030\u2032<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">POM<\/td><td class=\"has-text-align-center\" data-align=\"center\">30'~1\u00b0<\/td><td class=\"has-text-align-center\" data-align=\"center\">35'~1\u00b030\u2032<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PA<\/td><td class=\"has-text-align-center\" data-align=\"center\">20~40\u2032<\/td><td class=\"has-text-align-center\" data-align=\"center\">25~40\u2032<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">HPVC<\/td><td class=\"has-text-align-center\" data-align=\"center\">50'~1\u00b045\u2032<\/td><td class=\"has-text-align-center\" data-align=\"center\">50'~2\u00b0<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">SPV<\/td><td class=\"has-text-align-center\" data-align=\"center\">25~50<\/td><td class=\"has-text-align-center\" data-align=\"center\">30'~1\u00b0<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">CP<\/td><td class=\"has-text-align-center\" data-align=\"center\">20~45\u2032<\/td><td class=\"has-text-align-center\" data-align=\"center\">25~45\u2032<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><\/td><td class=\"has-text-align-center\" data-align=\"center\"><\/td><td class=\"has-text-align-center\" data-align=\"center\"><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Costillas<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">Generalmente 0,5\u00b0, minimizar 0,25<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-aspects-of-draft-angle-selection-that-need-attention\">Aspectos de la selecci\u00f3n del \u00e1ngulo de giro que requieren atenci\u00f3n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">1. Elija un \u00e1ngulo de desmoldeo menor, como 0,5\u00b0 para piezas de pl\u00e1stico con superficies brillantes y requisitos de alta precisi\u00f3n con un bajo \u00edndice de contracci\u00f3n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2. Para especificaciones de mayor altura y tama\u00f1o, deber\u00e1 elegirse un \u00e1ngulo de tiro menor bas\u00e1ndose en c\u00e1lculos espec\u00edficos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3. Elija un \u00e1ngulo mayor para las piezas de pl\u00e1stico con un alto \u00edndice de contracci\u00f3n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4. Para las piezas de pl\u00e1stico con paredes m\u00e1s gruesas, que hacen que el molde se cierre con m\u00e1s fuerza, debe elegirse un valor est\u00e1ndar mayor para el \u00e1ngulo de desmoldeo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">5. El \u00e1ngulo de calado para <a href=\"https:\/\/firstmold.com\/es\/tips\/making-transparent-and-translucent-parts\/\" type=\"post\" id=\"28490\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>piezas totalmente transparentes<\/strong><\/a> debe aumentarse para evitar ara\u00f1azos. En general, para los materiales PS, el \u00e1ngulo de inclinaci\u00f3n no debe ser inferior a 2,5\u00b0\uff5e3\u00b0, y para los materiales ABS y PC, no debe ser inferior a 1,5\u00b0\uff5e2\u00b0.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">6. Para las piezas de pl\u00e1stico con texturas o tratamientos de chorro de arena, el \u00e1ngulo de calado debe estar comprendido entre 2\u00b0 y 5\u00b0 en funci\u00f3n de la profundidad de la textura. Cuanto m\u00e1s profunda sea la textura, mayor deber\u00e1 ser el \u00e1ngulo de calado.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-04-r-corner\">04. Esquina R<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Excepto en las \u00e1reas donde los requisitos especiales especifican bordes afilados, los productos de pl\u00e1stico suelen tener esquinas redondeadas en el dise\u00f1o estructural para reducir la concentraci\u00f3n de tensiones, facilitar el flujo de pl\u00e1stico y facilitar el desmoldeo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1. Si no existen requisitos especiales para el dise\u00f1o del producto, el radio de transici\u00f3n (R) viene determinado por el grosor del material adyacente (t), y el radio de la esquina interna suele oscilar entre 0,50 y 1,50 veces el grosor del material, pero el radio m\u00ednimo no debe ser inferior a 0,30 mm.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"448\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Good-and-bad-corner-design.webp\" alt=\"Buen y mal dise\u00f1o de las esquinas\" class=\"wp-image-18371\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Good-and-bad-corner-design.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Good-and-bad-corner-design-300x134.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Good-and-bad-corner-design-768x344.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Good-and-bad-corner-design-18x8.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Buen y mal dise\u00f1o estructural de las esquinas<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">2. Cuando dise\u00f1e esquinas redondeadas en las superficies internas y externas del producto, mantenga uniforme el grosor de las paredes.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"896\" height=\"373\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/When-designing-r-corners-the-wall-thickness-should-be-kept-uniform.webp\" alt=\"Al dise\u00f1ar las esquinas r, el grosor de la pared debe mantenerse uniforme\" class=\"wp-image-18372\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/When-designing-r-corners-the-wall-thickness-should-be-kept-uniform.webp 896w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/When-designing-r-corners-the-wall-thickness-should-be-kept-uniform-300x125.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/When-designing-r-corners-the-wall-thickness-should-be-kept-uniform-768x320.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/When-designing-r-corners-the-wall-thickness-should-be-kept-uniform-18x7.webp 18w\" sizes=\"(max-width: 896px) 100vw, 896px\" \/><figcaption class=\"wp-element-caption\">Al dise\u00f1ar las esquinas r, el grosor de la pared debe mantenerse uniforme<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">3. En el dise\u00f1o estructural del producto de pl\u00e1stico, evite especialmente las esquinas redondeadas en la superficie de separaci\u00f3n del molde a menos que se requiera espec\u00edficamente. Las esquinas redondeadas en la superficie de separaci\u00f3n aumentan la dificultad de fabricaci\u00f3n del molde y dejan l\u00edneas de soldadura en la superficie del producto, lo que afecta a su aspecto.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"489\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Parting-surface-should-not-have-rounded-corners.webp\" alt=\"La l\u00ednea de separaci\u00f3n no debe tener esquinas redondeadas\" class=\"wp-image-18373\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Parting-surface-should-not-have-rounded-corners.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Parting-surface-should-not-have-rounded-corners-300x147.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Parting-surface-should-not-have-rounded-corners-768x376.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Parting-surface-should-not-have-rounded-corners-18x9.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">La l\u00ednea de separaci\u00f3n no debe tener esquinas redondeadas<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">4. No se permiten bordes afilados en las superficies que se puedan tocar en el exterior y el interior del producto. Si es necesario, bisele los bordes con un radio m\u00ednimo de 0,30 mm para evitar que se corten los dedos, algo especialmente importante en el dise\u00f1o de productos electr\u00f3nicos port\u00e1tiles.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"489\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Round-corners-to-prevent-scratching-1.webp\" alt=\"Esquinas redondeadas para evitar ara\u00f1azos\" class=\"wp-image-18375\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Round-corners-to-prevent-scratching-1.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Round-corners-to-prevent-scratching-1-300x147.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Round-corners-to-prevent-scratching-1-768x376.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Round-corners-to-prevent-scratching-1-18x9.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Esquinas redondeadas para evitar ara\u00f1azos<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-holes\">Agujeros<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Los agujeros son habituales en el dise\u00f1o de estructuras de productos y se suelen clasificar en dos tipos: agujeros circulares y no circulares. Al dise\u00f1ar la posici\u00f3n de los orificios, el objetivo debe ser minimizar la dificultad del procesamiento del molde sin comprometer la resistencia de la pieza de pl\u00e1stico.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-common-design-requirements-for-holes\">Requisitos comunes de dise\u00f1o para los agujeros<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Especificaciones dimensionales (excluyendo los orificios interiores de los postes atornillados): <\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"489\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Dimensional-specifications-of-holes.webp\" alt=\"Especificaciones dimensionales de los orificios\" class=\"wp-image-18376\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Dimensional-specifications-of-holes.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Dimensional-specifications-of-holes-300x147.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Dimensional-specifications-of-holes-768x376.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Dimensional-specifications-of-holes-18x9.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Especificaciones dimensionales de los orificios<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">La dimensi\u00f3n A es la distancia entre orificios. Si el di\u00e1metro del orificio es inferior a 3,00 mm, se recomienda que el valor de A no sea inferior a D; si el di\u00e1metro es superior a 3,00 mm, entonces A puede ser 0,70 veces el di\u00e1metro del orificio.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La cota B es la distancia del orificio al borde, y se recomienda que el valor de B no sea inferior a D.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-relationship-between-hole-diameter-and-depth\">Relaci\u00f3n entre el di\u00e1metro del orificio y la profundidad<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Especificaciones dimensionales (excluyendo los orificios interiores de los postes atornillados): <\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"487\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Relationship-Between-Hole-Diameter-and-Depth.webp\" alt=\"Relaci\u00f3n entre el di\u00e1metro del orificio y la profundidad\" class=\"wp-image-18377\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Relationship-Between-Hole-Diameter-and-Depth.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Relationship-Between-Hole-Diameter-and-Depth-300x146.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Relationship-Between-Hole-Diameter-and-Depth-768x374.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Relationship-Between-Hole-Diameter-and-Depth-18x9.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Relaci\u00f3n entre el di\u00e1metro del orificio y la profundidad<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">La dimensi\u00f3n A es la profundidad de un orificio ciego, se recomienda que no exceda de 5D. Generalmente, A es inferior a 2D con una relaci\u00f3n longitud-di\u00e1metro no superior a 4 mm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Si D \u2264 1,5 mm, entonces A \u2264 D. El grosor de la pared inferior del orificio ciego debe ser \u2265 1\/6D.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La dimensi\u00f3n B es la profundidad de un orificio pasante, se recomienda que no supere los 10D.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-step-holes\">Agujeros escalonados<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Los orificios escalonados se componen de m\u00faltiples orificios conectados coaxialmente de diferentes di\u00e1metros, cuya profundidad es mayor que la de un orificio de un solo di\u00e1metro, como se muestra en los diagramas.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"415\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Step-hole.webp\" alt=\"Agujero escalonado\" class=\"wp-image-18378\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Step-hole.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Step-hole-300x125.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Step-hole-768x319.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Step-hole-18x7.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Agujero escalonado<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-angled-holes\">Orificios en \u00e1ngulo<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Alinear el eje del agujero con la direcci\u00f3n de la abertura del molde puede evitar la necesidad de tirar del n\u00facleo. Para los m\u00e9todos de conformaci\u00f3n de agujeros en \u00e1ngulo y agujeros de formas complejas, se puede utilizar un n\u00facleo dividido para evitar las estructuras laterales de extracci\u00f3n del n\u00facleo. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-side-holes-and-indentations\">Orificios laterales y muescas<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cuando aparecen agujeros laterales y hendiduras en los productos de pl\u00e1stico, deben colocarse correderas o estructuras laterales de extracci\u00f3n del n\u00facleo para facilitar el desmoldeo, lo que complica la estructura del molde y aumenta los costes. La estructura del producto puede mejorarse en consecuencia. Como se muestra en la imagen inferior, cambiando de un dise\u00f1o con agujeros laterales (a) a otro con hendiduras laterales (b).<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"417\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Improved-side-hole-structure.webp\" alt=\"Estructura de orificios laterales mejorada\" class=\"wp-image-18379\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Improved-side-hole-structure.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Improved-side-hole-structure-300x125.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Improved-side-hole-structure-768x320.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Improved-side-hole-structure-18x8.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Estructura de orificios laterales mejorada<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-design-of-screw-head-holes\">Dise\u00f1o de los orificios de la cabeza del tornillo<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Como se muestra en la imagen inferior, la forma preferida para los orificios de las cabezas de los tornillos es la ilustrada en (a). Si la estructura requiere la forma mostrada en (b), la superficie c\u00f3nica debe estar por debajo de la cara del extremo en no menos de 0,50 mm para evitar el agrietamiento de la superficie del orificio.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"417\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Design-of-Screw-Head-Hole.webp\" alt=\"Dise\u00f1o del orificio de la cabeza del tornillo\" class=\"wp-image-18381\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Design-of-Screw-Head-Hole.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Design-of-Screw-Head-Hole-300x125.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Design-of-Screw-Head-Hole-768x320.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Design-of-Screw-Head-Hole-18x8.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Dise\u00f1o del orificio de la cabeza del tornillo<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-edge-structure-of-holes\">Estructura de los bordes de los agujeros<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Dise\u00f1ar un chafl\u00e1n o radio completo en el borde de un orificio es poco pr\u00e1ctico; el borde del orificio debe tener al menos un rasgo recto de 0,4 mm.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"494\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Edge-Structure-of-Holes.webp\" alt=\"Estructura de los bordes de los agujeros\" class=\"wp-image-18382\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Edge-Structure-of-Holes.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Edge-Structure-of-Holes-300x148.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Edge-Structure-of-Holes-768x379.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Edge-Structure-of-Holes-18x9.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Estructura de los bordes de los agujeros<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-bosses\">Jefes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Los resaltes se suelen utilizar para el ensamblaje de dos productos de pl\u00e1stico mediante un encaje de eje-agujero o para el ensamblaje de tornillos autorroscantes. Cuando un resalte no es muy alto y se expulsa utilizando un manguito eyector en el molde, puede que no necesite un \u00e1ngulo de desmoldeo. Sin embargo, cuando el resalte es alto, es habitual a\u00f1adir nervios transversales (refuerzos) en su exterior. Estas nervaduras transversales suelen tener un \u00e1ngulo de desmoldeo de 1-2 grados, y el propio saliente tambi\u00e9n puede requerir un \u00e1ngulo de desmoldeo dependiendo de la situaci\u00f3n. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cuando un resalte se empareja con un poste (u otro resalte), la holgura de ajuste suele fijarse en un 0,05-0,10 unilateral para tener en cuenta los errores de posici\u00f3n que puedan producirse durante la elaboraci\u00f3n de cada resalte. Cuando se utiliza un resalte para el ensamblaje de tornillos autorroscantes, su orificio interior debe ser 0,1-0,2 mm m\u00e1s peque\u00f1o que el di\u00e1metro del tornillo por un lado para garantizar que el tornillo pueda fijarse con seguridad. Por ejemplo, cuando se ensambla con un tornillo autorroscante M3.0, el agujero interior del resalte suele ser de \u04242,60-2,80 mm.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-inserts\">Insertos<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">En el proceso de moldeo del pl\u00e1stico, las piezas met\u00e1licas o de otro material, como pernos y terminales, incrustadas durante o despu\u00e9s del moldeo se denominan colectivamente insertos dentro de las piezas de pl\u00e1stico. Los insertos pueden mejorar la funcionalidad del producto o tener fines decorativos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Los insertos en piezas de pl\u00e1stico se utilizan a menudo como elementos de fijaci\u00f3n o soporte. Adem\u00e1s, los insertos son un m\u00e9todo de montaje habitual cuando el dise\u00f1o del producto requiere facilidad de reparaci\u00f3n, facilidad de sustituci\u00f3n o reutilizaci\u00f3n. Sin embargo, independientemente de que se utilicen con fines funcionales o decorativos, el uso de insertos debe reducirse al m\u00ednimo. La raz\u00f3n es que la incorporaci\u00f3n de insertos requiere pasos de procesamiento adicionales, lo que aumenta los costes de producci\u00f3n. Los insertos suelen estar hechos de metal, siendo el cobre un material de elecci\u00f3n habitual.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-shape-and-structural-requirements-for-inserts\">Requisitos de forma y estructura de las plaquitas<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">1. Los insertos met\u00e1licos se fabrican mediante procesos de corte o estampaci\u00f3n, por lo que sus formas deben ser propicias para la fabricaci\u00f3n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2. Deben poseer una resistencia mec\u00e1nica suficiente (material, dimensiones).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3. Debe existir una fuerza de uni\u00f3n adecuada entre el inserto y la matriz de pl\u00e1stico para evitar que el inserto se salga o gire durante su uso. La superficie del inserto debe tener ranuras anulares o estr\u00edas transversales; deben evitarse los \u00e1ngulos agudos para prevenir los da\u00f1os causados por la concentraci\u00f3n de tensiones. Siempre que sea posible, deben utilizarse formas redondas o sim\u00e9tricas para garantizar una contracci\u00f3n uniforme.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4. Para facilitar la colocaci\u00f3n y el posicionamiento dentro del molde, la parte del inserto que se extiende hacia el exterior (la pieza colocada en el molde) debe ser cil\u00edndrica, ya que los orificios circulares son los m\u00e1s f\u00e1ciles de mecanizar en el molde.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">5. Para evitar las rebabas, los insertos deben tener estructuras como resaltes de sellado.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">6. El dise\u00f1o debe facilitar el procesado secundario del inserto tras el moldeo, como el roscado, el corte de la cara frontal, el rebordeado, etc. <\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"700\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Inserts-in-structual-design.webp\" alt=\"Inserciones en el dise\u00f1o estructural\" class=\"wp-image-18383\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Inserts-in-structual-design.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Inserts-in-structual-design-300x210.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Inserts-in-structual-design-768x538.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Inserts-in-structual-design-18x12.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Insertos en el dise\u00f1o estructural<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Cuando se dise\u00f1an productos de pl\u00e1stico con insertos, es crucial asegurarse de que \u00e9stos pueden colocarse de forma precisa y fiable dentro del molde. Tambi\u00e9n es importante tener en cuenta que el inserto debe formar una conexi\u00f3n fuerte con la pieza moldeada, lo que puede suponer un reto cuando el material de encapsulado es demasiado fino. Adem\u00e1s, el dise\u00f1o debe evitar cualquier fuga de pl\u00e1stico.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-product-surface-texture\">Textura de la superficie del producto <\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La superficie de los productos de pl\u00e1stico puede ser lisa (superficie del molde pulida), grabada con chispa (cavidad del molde procesada por electroerosi\u00f3n de cobre), varias superficies grabadas con patrones (superficies con patrones) y superficies grabadas. Cuando la profundidad de la textura es significativa o hay muchas texturas, aumenta la resistencia al desmoldeo, lo que requiere un aumento correspondiente del \u00e1ngulo de desmoldeo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-text-and-patterns\">Texto y patrones <\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El texto y los patrones en los productos de pl\u00e1stico se presentan en dos formas: superficies elevadas y empotradas. Por lo general, existen dos m\u00e9todos de procesamiento: los textos y patrones peque\u00f1os se obtienen mediante grabado en molde, mientras que los textos y patrones ligeramente m\u00e1s grandes se mecanizan directamente en el molde. El tama\u00f1o del texto debe favorecer el moldeado y evitar los \u00e1ngulos agudos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1. Lo mejor es utilizar superficies elevadas para el texto y los patrones en los productos de pl\u00e1stico, haci\u00e9ndolos empotrar en el molde, lo que simplifica el procesado del mismo. Si la estructura requiere que la superficie no tenga ning\u00fan elemento elevado, puede crear una zona rebajada donde se sit\u00fae el texto o el patr\u00f3n hasta una cierta profundidad, y luego elevar el texto o el patr\u00f3n dentro del rebaje. Esto satisface los requisitos estructurales a la vez que facilita la elaboraci\u00f3n del molde.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"867\" height=\"383\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/The-text-and-pattern-on-plastic-products-are-best-used-to-protrude-the-surface.webp\" alt=\"El texto y el dibujo en los productos de pl\u00e1stico se utilizan mejor para resaltar la superficie\" class=\"wp-image-18384\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/The-text-and-pattern-on-plastic-products-are-best-used-to-protrude-the-surface.webp 867w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/The-text-and-pattern-on-plastic-products-are-best-used-to-protrude-the-surface-300x133.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/The-text-and-pattern-on-plastic-products-are-best-used-to-protrude-the-surface-768x339.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/The-text-and-pattern-on-plastic-products-are-best-used-to-protrude-the-surface-18x8.webp 18w\" sizes=\"(max-width: 867px) 100vw, 867px\" \/><figcaption class=\"wp-element-caption\">El texto y el dibujo en los productos de pl\u00e1stico se utilizan mejor para resaltar la superficie<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">2. En los productos de pl\u00e1stico, la altura del texto y los motivos en relieve suele oscilar entre 0,15 y 0,30 mm, mientras que la profundidad del texto y los motivos empotrados oscila entre 0,15 y 0,25 mm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3. Especificaciones del tama\u00f1o del texto:<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"884\" height=\"458\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Text-size-description-in-structural-design.webp\" alt=\"Descripci\u00f3n del tama\u00f1o del texto en el dise\u00f1o estructural\" class=\"wp-image-18385\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Text-size-description-in-structural-design.webp 884w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Text-size-description-in-structural-design-300x155.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Text-size-description-in-structural-design-768x398.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Text-size-description-in-structural-design-18x9.webp 18w\" sizes=\"(max-width: 884px) 100vw, 884px\" \/><figcaption class=\"wp-element-caption\">Descripci\u00f3n del tama\u00f1o del texto en el dise\u00f1o estructural<\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La dimensi\u00f3n A es la anchura del trazo del texto, se recomienda que no sea inferior a 0,25 mm.<\/li>\n\n\n\n<li>La dimensi\u00f3n B es el espacio entre dos caracteres, se recomienda que no sea inferior a 0,40 mm.<\/li>\n\n\n\n<li>Las dimensiones C y D son las distancias de los caracteres al borde, se recomienda que no sean inferiores a 0,60 mm.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Este art\u00edculo proporciona una completa gu\u00eda de dise\u00f1o estructural para productos de pl\u00e1stico, que le ser\u00e1 \u00fatil para desarrollar nuevos productos<\/p>","protected":false},"author":5,"featured_media":18386,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[48],"tags":[54],"class_list":["post-11755","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tips","tag-product-design"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Structural Design of Plastic Products<\/title>\n<meta name=\"description\" content=\"Discover expert tips on plastic product design and structural design to enhance functionality and efficiency in your plastic products.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/firstmold.com\/es\/tips\/structural-design-of-plastic-products\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rapid Prototyping Services In China | Explore The Full Process\" \/>\n<meta property=\"og:description\" content=\"What exactly are rapid prototyping services like in China? 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