{"id":11681,"date":"2023-05-15T14:31:10","date_gmt":"2023-05-15T06:31:10","guid":{"rendered":"https:\/\/firstmold.com\/?p=11681"},"modified":"2026-01-21T14:14:39","modified_gmt":"2026-01-21T06:14:39","slug":"mold-sprue","status":"publish","type":"post","link":"https:\/\/firstmold.com\/pt\/guides\/mold-sprue\/","title":{"rendered":"10 minutos para compreender o jito do molde e a sua norma de conce\u00e7\u00e3o"},"content":{"rendered":"<p>J\u00e1 falei anteriormente sobre o sistema de vazamento e a disposi\u00e7\u00e3o das cavidades dos moldes de inje\u00e7\u00e3o. Entre elas, tr\u00eas estruturas cruciais do molde s\u00e3o o jito, <a href=\"https:\/\/firstmold.com\/pt\/guides\/mold-runner\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>corredor<\/strong><\/a>e <a href=\"https:\/\/firstmold.com\/pt\/guides\/injection-molding-gate\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>port\u00e3o<\/strong><\/a>. Vou falar sobre cada um deles em tr\u00eas artigos separados. Os conhecimentos relativos aos sprues s\u00e3o relativamente limitados; este artigo ir\u00e1 enfatizar os princ\u00edpios de design dos sprues.<\/p>\n\n\n\n<p>A compreens\u00e3o do jito \u00e9 particularmente importante para <a href=\"https:\/\/firstmold.com\/pt\/tips\/mold-design\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>projectistas de moldes<\/strong><\/a> e profissionais de moldagem e inje\u00e7\u00e3o. Os projectistas de produtos necessitam apenas de um conhecimento b\u00e1sico.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-is-a-sprue\">O que \u00e9 um Sprue?<\/h2>\n\n\n\n<p>Para compreender melhor este conceito, vamos recapitular o sistema de vazamento dos moldes: \u00e9 o canal de fluxo atrav\u00e9s do qual o pl\u00e1stico, injetado pelo bico da m\u00e1quina de inje\u00e7\u00e3o, entra na cavidade. \u00c9 composto pelo jito, canais, portas e po\u00e7os frios. A sua principal fun\u00e7\u00e3o \u00e9 assegurar um enchimento suave e ordenado da cavidade com pl\u00e1stico fundido, transferindo eficazmente a press\u00e3o de inje\u00e7\u00e3o durante o enchimento e a solidifica\u00e7\u00e3o para obter pe\u00e7as de pl\u00e1stico bem estruturadas.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Feed-System-1024x682.webp\" alt=\"Sistema de alimenta\u00e7\u00e3o\" class=\"wp-image-18276\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Feed-System-1024x682.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Feed-System-300x200.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Feed-System-768x512.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Feed-System-18x12.webp 18w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Feed-System.webp 1400w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Sistema de alimenta\u00e7\u00e3o<\/figcaption><\/figure>\n\n\n\n<p>O jito marca a parte inicial da entrada do pl\u00e1stico em todo o sistema de vazamento. Estende-se desde o ponto de contacto com o bocal do molde at\u00e9 \u00e0s corredi\u00e7as. Esta sec\u00e7\u00e3o \u00e9 onde o pl\u00e1stico derretido flui pela primeira vez depois de entrar no molde.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-design-principles-of-the-mold-sprue\">Princ\u00edpios de conce\u00e7\u00e3o do canal de entrada do molde<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-various-designs-of-sprues\">V\u00e1rios modelos de sprues<\/h3>\n\n\n\n<p>Os sprues s\u00e3o fornecidos em v\u00e1rias formas de design, incluindo os tipos vertical, de inclina\u00e7\u00e3o simples e de inclina\u00e7\u00e3o dupla.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-design-of-vertical-sprues\">Conce\u00e7\u00e3o dos sprues verticais:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>O di\u00e2metro na extremidade mais pequena (d) \u00e9 o tamanho, normalmente 0,25 mm maior do que o di\u00e2metro do bocal.<\/li>\n\n\n\n<li>O comprimento (L) depende da estrutura do molde, normalmente n\u00e3o excedendo 150 mm.<\/li>\n\n\n\n<li>O \u00e2ngulo de conicidade (a) situa-se normalmente entre 2\u00b0 e 4\u00b0.<\/li>\n\n\n\n<li>D &gt; D1 + (1~2mm)<\/li>\n<\/ul>\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\/Vertical-Sprue-design.webp\" alt=\"Conce\u00e7\u00e3o de canal vertical\" class=\"wp-image-18275\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Vertical-Sprue-design.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Vertical-Sprue-design-300x210.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Vertical-Sprue-design-768x538.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Vertical-Sprue-design-18x12.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Tubo vertical<\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-design-of-single-tilt-sprues\">Conce\u00e7\u00e3o de sprues de inclina\u00e7\u00e3o simples:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>O \u00e2ngulo de inclina\u00e7\u00e3o (a) depende das propriedades do pl\u00e1stico; para alguns pl\u00e1sticos, pode atingir 30\u00b0.<\/li>\n\n\n\n<li>Para outros, \u00e9 normalmente at\u00e9 20\u00b0, normalmente controlado entre 10\u00b0 e 20\u00b0 com base na experi\u00eancia de conce\u00e7\u00e3o.<\/li>\n\n\n\n<li>Os outros par\u00e2metros de conce\u00e7\u00e3o s\u00e3o semelhantes aos dos sprues verticais.<\/li>\n<\/ul>\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\/Design-of-Single-Tilt-Sprue.webp\" alt=\"Conce\u00e7\u00e3o de um jito de inclina\u00e7\u00e3o simples\" class=\"wp-image-18274\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Design-of-Single-Tilt-Sprue.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Design-of-Single-Tilt-Sprue-300x210.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Design-of-Single-Tilt-Sprue-768x538.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Design-of-Single-Tilt-Sprue-18x12.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Tubo de inclina\u00e7\u00e3o simples<\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-design-of-double-tilt-sprues\">Conce\u00e7\u00e3o de sprues de dupla inclina\u00e7\u00e3o:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Caracterizado por um amplo espa\u00e7o de fluxo de pl\u00e1stico, preenchendo rapidamente grandes cavidades e simplificando a estrutura do molde.<\/li>\n\n\n\n<li>As arestas vivas na jun\u00e7\u00e3o dos dois sprues facilitam a abertura do molde.<\/li>\n\n\n\n<li>Os outros par\u00e2metros de conce\u00e7\u00e3o s\u00e3o os mesmos que para os sprues de inclina\u00e7\u00e3o simples.<\/li>\n<\/ul>\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\/Design-of-Double-Tilt-Sprue.webp\" alt=\"Conce\u00e7\u00e3o de um jito de dupla inclina\u00e7\u00e3o\" class=\"wp-image-18273\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Design-of-Double-Tilt-Sprue.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Design-of-Double-Tilt-Sprue-300x210.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Design-of-Double-Tilt-Sprue-768x538.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Design-of-Double-Tilt-Sprue-18x12.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Tubo de inclina\u00e7\u00e3o dupla<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-shape-of-the-sprue\">Forma do Sprue<\/h3>\n\n\n\n<p>Para facilitar a extra\u00e7\u00e3o do material solidificado do jito, este \u00e9 normalmente concebido de forma c\u00f3nica com um \u00e2ngulo de conicidade \u03b1 que varia entre 2\u00b0 e 4\u00b0. Para pl\u00e1sticos com fraca fluidez, \u03b1 pode ser de 6\u00b0 a 10\u00b0, com uma rugosidade da superf\u00edcie da parede interna geralmente em torno de Ra 0,8 \u03bcm. Normalmente, o di\u00e2metro de entrada varia entre 4 e 8 mm. Se o fluxo de fus\u00e3o for bom e o produto for pequeno, preferimos um di\u00e2metro menor; caso contr\u00e1rio, \u00e9 melhor escolher um di\u00e2metro maior.<\/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\/Shape-of-the-Sprue.webp\" alt=\"Forma do Sprue\" class=\"wp-image-18265\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Shape-of-the-Sprue.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Shape-of-the-Sprue-300x210.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Shape-of-the-Sprue-768x538.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Shape-of-the-Sprue-18x12.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Forma do Sprue<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-table aligncenter\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"15\"><strong>O di\u00e2metro da entrada e da sa\u00edda do jito<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Volume de inje\u00e7\u00e3o da m\u00e1quina de moldagem por inje\u00e7\u00e3o\/g<\/td><td class=\"has-text-align-center\" data-align=\"center\">10<\/td><td class=\"has-text-align-center\" data-align=\"center\">10<\/td><td class=\"has-text-align-center\" data-align=\"center\">30<\/td><td class=\"has-text-align-center\" data-align=\"center\">30<\/td><td class=\"has-text-align-center\" data-align=\"center\">60<\/td><td class=\"has-text-align-center\" data-align=\"center\">60<\/td><td class=\"has-text-align-center\" data-align=\"center\">125<\/td><td class=\"has-text-align-center\" data-align=\"center\">125<\/td><td class=\"has-text-align-center\" data-align=\"center\">250<\/td><td class=\"has-text-align-center\" data-align=\"center\">250<\/td><td class=\"has-text-align-center\" data-align=\"center\">500<\/td><td class=\"has-text-align-center\" data-align=\"center\">500<\/td><td class=\"has-text-align-center\" data-align=\"center\">1000<\/td><td class=\"has-text-align-center\" data-align=\"center\">1000<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">O di\u00e2metro da entrada e da sa\u00edda do jito<\/td><td class=\"has-text-align-center\" data-align=\"center\">D1<\/td><td class=\"has-text-align-center\" data-align=\"center\">D2<\/td><td class=\"has-text-align-center\" data-align=\"center\">D1<\/td><td class=\"has-text-align-center\" data-align=\"center\">D2<\/td><td class=\"has-text-align-center\" data-align=\"center\">D1<\/td><td class=\"has-text-align-center\" data-align=\"center\">D2<\/td><td class=\"has-text-align-center\" data-align=\"center\">D1<\/td><td class=\"has-text-align-center\" data-align=\"center\">D2<\/td><td class=\"has-text-align-center\" data-align=\"center\">D1<\/td><td class=\"has-text-align-center\" data-align=\"center\">D2<\/td><td class=\"has-text-align-center\" data-align=\"center\">D1<\/td><td class=\"has-text-align-center\" data-align=\"center\">D2<\/td><td class=\"has-text-align-center\" data-align=\"center\">D1<\/td><td class=\"has-text-align-center\" data-align=\"center\">D2<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PE, PS\/mm<\/td><td class=\"has-text-align-center\" data-align=\"center\">3<\/td><td class=\"has-text-align-center\" data-align=\"center\">4.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">3.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">4.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><td class=\"has-text-align-center\" data-align=\"center\">4.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><td class=\"has-text-align-center\" data-align=\"center\">4.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">6.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">5.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">7.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">5.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">8.5<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">ABS, AS\/mm<\/td><td class=\"has-text-align-center\" data-align=\"center\">3<\/td><td class=\"has-text-align-center\" data-align=\"center\">4.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">3.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">4.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><td class=\"has-text-align-center\" data-align=\"center\">4.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">6.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">4.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">7<\/td><td class=\"has-text-align-center\" data-align=\"center\">5.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">8<\/td><td class=\"has-text-align-center\" data-align=\"center\">5.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">8.5<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">PSU, PC\/mm<\/td><td class=\"has-text-align-center\" data-align=\"center\">3.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">4<\/td><td class=\"has-text-align-center\" data-align=\"center\">5.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">6.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">7<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">7.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><td class=\"has-text-align-center\" data-align=\"center\">8.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-coordination-between-machine-nozzle-and-sprue-bushing\">Coordena\u00e7\u00e3o entre o bocal da m\u00e1quina e o casquilho do canal de entrada<\/h3>\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\/Coordination-Between-Machine-Nozzle-and-Sprue-Bushing.webp\" alt=\"Coordena\u00e7\u00e3o entre o bocal da m\u00e1quina e o casquilho do canal de entrada\" class=\"wp-image-18272\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Coordination-Between-Machine-Nozzle-and-Sprue-Bushing.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Coordination-Between-Machine-Nozzle-and-Sprue-Bushing-300x210.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Coordination-Between-Machine-Nozzle-and-Sprue-Bushing-768x538.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2023\/05\/Coordination-Between-Machine-Nozzle-and-Sprue-Bushing-18x12.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Coordena\u00e7\u00e3o entre o bocal da m\u00e1quina e o casquilho do canal de entrada<\/figcaption><\/figure>\n\n\n\n<p>O SR esf\u00e9rico do casquilho do molde deve ser 1-2 mm maior do que o SR do bocal da m\u00e1quina. Pode verificar o SR do bico da m\u00e1quina em rela\u00e7\u00e3o \u00e0s suas especifica\u00e7\u00f5es.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Tonelagem da m\u00e1quina de moldagem por inje\u00e7\u00e3o<\/td><td class=\"has-text-align-center\" data-align=\"center\">&lt;130t<\/td><td class=\"has-text-align-center\" data-align=\"center\">&lt;350t<\/td><td class=\"has-text-align-center\" data-align=\"center\">&gt;350t<\/td><\/tr><tr><td>Arco do bocal<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"3\">Verificar as especifica\u00e7\u00f5es da m\u00e1quina de moldagem por inje\u00e7\u00e3o<\/td><\/tr><tr><td>Casquilho de canal de entrada<\/td><td class=\"has-text-align-center\" data-align=\"center\">12<\/td><td class=\"has-text-align-center\" data-align=\"center\">14<\/td><td class=\"has-text-align-center\" data-align=\"center\">23<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Nota: Para <a href=\"https:\/\/firstmold.com\/pt\/hot-runner-mold-making\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>moldes com canais quentes<\/strong><\/a> ou bicos prolongados, \u00e9 necess\u00e1rio garantir a conformidade com estes regulamentos antes da compra.<\/p>\n\n\n\n<p>Durante o projeto do molde, verifique o comprimento que o bico da m\u00e1quina pode estender para dentro do molde. Qualquer necessidade de bicos mais compridos deve ser tratada de antem\u00e3o.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-determining-the-sprue-bushing-hole-diameter\">Determina\u00e7\u00e3o do di\u00e2metro do orif\u00edcio do casquilho do jito<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Tonelagem da m\u00e1quina de moldagem por inje\u00e7\u00e3o<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u226460t<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u2264130t<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u2264220t<\/td><td class=\"has-text-align-center\" data-align=\"center\">350t<\/td><td class=\"has-text-align-center\" data-align=\"center\">450t<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u2265550t<\/td><\/tr><tr><td>ABS, HI-PS, POM, PE, PP, PA<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">3<\/td><td class=\"has-text-align-center\" data-align=\"center\">3.5<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">4.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">5.5<\/td><\/tr><tr><td>PC, PPS, PPE<\/td><td class=\"has-text-align-center\" data-align=\"center\">3<\/td><td class=\"has-text-align-center\" data-align=\"center\">3.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">4<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>O valor de D para o casquilho do jito deve ser 0,5 mm superior ao valor de d do bico da m\u00e1quina.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-measures-for-shortening-the-sprue\">Medidas para encurtar o jito:<\/h3>\n\n\n\n<p>(1) Nas estruturas de molde de duas placas, o casquilho do jito deve ser encastrado na placa A (excluindo requisitos especiais do cliente).<\/p>\n\n\n\n<p>(2) Para estruturas de molde de tr\u00eas placas, se o comprimento do jito exceder 25 mm (incluindo 25 mm), \u00e9 melhor utilizar um casquilho de jito maior.<\/p>\n\n\n\n<p>(3) Para produtos com apar\u00eancia e outros requisitos especiais, devem ser utilizados canais quentes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\">Conclus\u00e3o<\/h2>\n\n\n\n<p>O canal de entrada e o canal de sa\u00edda s\u00e3o estruturas relativamente simples no sistema de alimenta\u00e7\u00e3o. Seguir as directrizes de conce\u00e7\u00e3o acima referidas dever\u00e1 evitar quaisquer problemas. Se encontrar algum problema na conce\u00e7\u00e3o do molde, sinta-se \u00e0 vontade para deixar um coment\u00e1rio na sec\u00e7\u00e3o abaixo. No pr\u00f3ximo artigo, falaremos sobre as corredi\u00e7as.<\/p>","protected":false},"excerpt":{"rendered":"<p>Obtenha informa\u00e7\u00f5es sobre o que \u00e9 um jito no molde de inje\u00e7\u00e3o de pl\u00e1stico e a conce\u00e7\u00e3o eficaz do molde para o jito no sistema de alimenta\u00e7\u00e3o.<\/p>","protected":false},"author":5,"featured_media":11684,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[47],"tags":[60],"class_list":["post-11681","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guides","tag-injection-mold-component"],"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>10 Minutes To Understand Mold Sprue And Its Design Principle<\/title>\n<meta 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