{"id":20169,"date":"2024-05-24T17:26:10","date_gmt":"2024-05-24T09:26:10","guid":{"rendered":"https:\/\/firstmold.com\/?p=20169"},"modified":"2025-08-11T15:51:01","modified_gmt":"2025-08-11T07:51:01","slug":"parts-connection","status":"publish","type":"post","link":"https:\/\/firstmold.com\/pt\/tips\/parts-connection\/","title":{"rendered":"11 Tipos de pe\u00e7as de pl\u00e1stico M\u00e9todos de liga\u00e7\u00e3o"},"content":{"rendered":"<p>No nosso artigo sobre <a href=\"https:\/\/firstmold.com\/pt\/guides\/fasteners\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>fixadores<\/strong><\/a>Na sec\u00e7\u00e3o \"Liga\u00e7\u00f5es de fixa\u00e7\u00e3o\", mencion\u00e1mos brevemente v\u00e1rias t\u00e9cnicas de liga\u00e7\u00e3o de elementos de fixa\u00e7\u00e3o. Por raz\u00f5es t\u00e9cnicas ou estruturais, muitos produtos ou componentes de pl\u00e1stico podem ser montados a partir de pe\u00e7as feitas de diferentes materiais e fun\u00e7\u00f5es. Para montar duas pe\u00e7as em conjunto, \u00e9 necess\u00e1rio conceber uma liga\u00e7\u00e3o entre elas. O objetivo da conce\u00e7\u00e3o da liga\u00e7\u00e3o \u00e9 criar o m\u00e9todo de liga\u00e7\u00e3o mais adequado, com base em v\u00e1rios factores, para montar e fixar as pe\u00e7as.<\/p>\n\n\n\n<p>Uma vez que os m\u00e9todos de liga\u00e7\u00e3o de pl\u00e1stico s\u00e3o uma li\u00e7\u00e3o importante para os designers de produtos, este artigo continuar\u00e1 a explorar os m\u00e9todos de liga\u00e7\u00e3o entre pe\u00e7as de pl\u00e1stico.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Common-parts-connection-methods.webp\" alt=\"M\u00e9todos comuns de liga\u00e7\u00e3o de pe\u00e7as\" class=\"wp-image-31968\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Common-parts-connection-methods.webp 1200w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Common-parts-connection-methods-300x169.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Common-parts-connection-methods-1024x576.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Common-parts-connection-methods-768x432.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Common-parts-connection-methods-18x10.webp 18w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Common-parts-connection-methods-600x338.webp 600w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-connection-methods-for-plastic-parts\">M\u00e9todos de liga\u00e7\u00e3o para pe\u00e7as de pl\u00e1stico<\/h2>\n\n\n\n<p>Existem muitas formas de ligar pe\u00e7as de pl\u00e1stico. Podem ser divididas, grosso modo, em liga\u00e7\u00f5es destac\u00e1veis, liga\u00e7\u00f5es semi-destac\u00e1veis e liga\u00e7\u00f5es n\u00e3o destac\u00e1veis. Esta classifica\u00e7\u00e3o n\u00e3o \u00e9 muito precisa. Alguns m\u00e9todos de liga\u00e7\u00e3o podem mudar de um tipo para outro com altera\u00e7\u00f5es dos par\u00e2metros estruturais. Por exemplo, se o engate do fecho for demasiado forte, pode tornar-se dif\u00edcil ou imposs\u00edvel destac\u00e1-lo. Algumas colas podem ser removidas por aquecimento. Por conseguinte, a classifica\u00e7\u00e3o que se segue serve apenas de refer\u00eancia e n\u00e3o deve ser considerada uma norma.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"2000\" height=\"1600\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Connection-Methods-For-Plastic-Parts.webp\" alt=\"M\u00e9todos de liga\u00e7\u00e3o para pe\u00e7as de pl\u00e1stico\" class=\"wp-image-20197\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Connection-Methods-For-Plastic-Parts.webp 2000w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Connection-Methods-For-Plastic-Parts-300x240.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Connection-Methods-For-Plastic-Parts-1024x819.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Connection-Methods-For-Plastic-Parts-768x614.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Connection-Methods-For-Plastic-Parts-1536x1229.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Connection-Methods-For-Plastic-Parts-15x12.webp 15w\" sizes=\"(max-width: 2000px) 100vw, 2000px\" \/><\/figure>\n\n\n\n<p>A liga\u00e7\u00e3o e a fixa\u00e7\u00e3o de pe\u00e7as de pl\u00e1stico podem utilizar um m\u00e9todo ou uma combina\u00e7\u00e3o de dois ou mais m\u00e9todos, como a combina\u00e7\u00e3o fecho + parafuso. No entanto, independentemente do m\u00e9todo de liga\u00e7\u00e3o, devem ser considerados os seguintes factores principais antes de escolher o m\u00e9todo de liga\u00e7\u00e3o:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong><em>Desempenho de desmontagem:<\/em><\/strong> Se a desmontagem \u00e9 necess\u00e1ria, a frequ\u00eancia da desmontagem, a reversibilidade da desmontagem e a conveni\u00eancia da desmontagem.<\/li>\n\n\n\n<li><strong><em>Propriedades dos elementos de liga\u00e7\u00e3o:<\/em><\/strong> Se a forma geom\u00e9trica \u00e9 permitida, se h\u00e1 espa\u00e7o suficiente e se as propriedades do material cumprem os requisitos.<\/li>\n\n\n\n<li><strong><em>Ambiente de funcionamento:<\/em><\/strong> Carga (requisitos de resist\u00eancia), temperatura (requisitos de resist\u00eancia \u00e0 temperatura) e meio (requisitos de resist\u00eancia ao p\u00f3 e \u00e0 \u00e1gua).<\/li>\n\n\n\n<li><strong><em>Factores econ\u00f3micos:<\/em><\/strong> Custos de materiais auxiliares, custos de montagem e custos de manuten\u00e7\u00e3o.<\/li>\n\n\n\n<li><strong><em>Requisitos est\u00e9ticos:<\/em><\/strong> A integridade da apar\u00eancia e os efeitos est\u00e9ticos.<\/li>\n<\/ol>\n\n\n\n<p>\u00c9 dif\u00edcil ou mesmo imposs\u00edvel satisfazer todos estes factores simultaneamente, pelo que o m\u00e9todo de liga\u00e7\u00e3o adequado deve ser escolhido de acordo com os requisitos espec\u00edficos do produto ou da estrutura.<\/p>\n\n\n\n<p>De seguida, apresentaremos diferentes m\u00e9todos de liga\u00e7\u00e3o entre pe\u00e7as de pl\u00e1stico atrav\u00e9s de exemplos. Por exemplo, dadas as duas pe\u00e7as seguintes (o tamanho e a estrutura espec\u00edficos devem ser concebidos de acordo com o produto espec\u00edfico), que m\u00e9todos de liga\u00e7\u00e3o est\u00e3o dispon\u00edveis e existem estruturas semelhantes na vida quotidiana?<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"1000\" height=\"331\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Connection-Diagram-of-Two-Parts.webp\" alt=\"Diagrama de liga\u00e7\u00e3o de duas partes\" class=\"wp-image-20171\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Connection-Diagram-of-Two-Parts.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Connection-Diagram-of-Two-Parts-300x99.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Connection-Diagram-of-Two-Parts-768x254.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Connection-Diagram-of-Two-Parts-18x6.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-1-snap-fits\">1. Encaixes r\u00e1pidos<\/h3>\n\n\n\n<p>Existem muitos tipos de encaixes r\u00e1pidos. De seguida, apresentamos alguns dos mais comuns. <\/p>\n\n\n\n<p><em>Dicas: Se quiser saber mais, pode clicar no bot\u00e3o \"<a href=\"https:\/\/firstmold.com\/pt\/tips\/snap-fits\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>guia de ajuste r\u00e1pido<\/strong><\/a>\" para saber mais sobre eles.<\/em><\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-a-cantilever-snap-fits\">a). Encaixes de encaixe cantilever<\/h4>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"459\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Types-of-Snap-Fits.webp\" alt=\"Tipos de encaixes r\u00e1pidos\" class=\"wp-image-20172\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Types-of-Snap-Fits.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Types-of-Snap-Fits-300x138.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Types-of-Snap-Fits-768x353.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Types-of-Snap-Fits-18x8.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p><strong>1). Bra\u00e7o reto de encaixe:<\/strong> Este m\u00e9todo \u00e9 normalmente utilizado para ligar e fixar pe\u00e7as decorativas. \u00c9 f\u00e1cil e r\u00e1pido de instalar, esteticamente agrad\u00e1vel, e o facto de ser destac\u00e1vel depende da quantidade de engate.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"733\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Straight-Arm-Snap-Fit.webp\" alt=\"Bra\u00e7o reto de encaixe\" class=\"wp-image-20173\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Straight-Arm-Snap-Fit.webp 1600w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Straight-Arm-Snap-Fit-300x137.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Straight-Arm-Snap-Fit-1024x469.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Straight-Arm-Snap-Fit-768x352.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Straight-Arm-Snap-Fit-1536x704.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Straight-Arm-Snap-Fit-18x8.webp 18w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<p><strong>2). Encaixe de press\u00e3o em forma de U:<\/strong> \u00c9 comum ver-se nas liga\u00e7\u00f5es da tampa da bateria. A estrutura em forma de U proporciona espa\u00e7o para deforma\u00e7\u00e3o el\u00e1stica e permite m\u00faltiplas montagens e desmontagens.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"674\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/U-shaped-Snap-Fit.webp\" alt=\"Encaixe de press\u00e3o em forma de U\" class=\"wp-image-20174\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/U-shaped-Snap-Fit.webp 1600w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/U-shaped-Snap-Fit-300x126.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/U-shaped-Snap-Fit-1024x431.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/U-shaped-Snap-Fit-768x324.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/U-shaped-Snap-Fit-1536x647.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/U-shaped-Snap-Fit-18x8.webp 18w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<p>A seguinte estrutura de encaixe \u00e9 uma variante do encaixe em forma de U. O entalhe alongado proporciona espa\u00e7o de deforma\u00e7\u00e3o el\u00e1stica, permitindo m\u00faltiplas montagens e desmontagens.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"806\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/a-variant-of-the-U-shaped-snap-fit.webp\" alt=\"uma variante do encaixe em U\" class=\"wp-image-20175\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/a-variant-of-the-U-shaped-snap-fit.webp 1600w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/a-variant-of-the-U-shaped-snap-fit-300x151.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/a-variant-of-the-U-shaped-snap-fit-1024x516.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/a-variant-of-the-U-shaped-snap-fit-768x387.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/a-variant-of-the-U-shaped-snap-fit-1536x774.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/a-variant-of-the-U-shaped-snap-fit-18x9.webp 18w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<p>O seguinte \u00e9 outra forma do anterior, com o espa\u00e7o de deforma\u00e7\u00e3o transferido para o interior. Em compara\u00e7\u00e3o com os dois tipos anteriores, causa muito menos danos no aspeto. No entanto, a desvantagem \u00e9 que a tampa da bateria tem de envolver a extremidade inferior da caixa, o que a torna menos adequada para a instala\u00e7\u00e3o de baterias no meio do produto.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"657\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/another-variant-of-U-shaped-snap-fit.webp\" alt=\"outra variante de encaixe em U\" class=\"wp-image-20178\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/another-variant-of-U-shaped-snap-fit.webp 1600w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/another-variant-of-U-shaped-snap-fit-300x123.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/another-variant-of-U-shaped-snap-fit-1024x420.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/another-variant-of-U-shaped-snap-fit-768x315.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/another-variant-of-U-shaped-snap-fit-1536x631.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/another-variant-of-U-shaped-snap-fit-18x7.webp 18w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<p><strong>3). Encaixe r\u00e1pido + parafuso:<\/strong> Este m\u00e9todo de liga\u00e7\u00e3o da tampa da bateria \u00e9 normalmente utilizado em produtos de brinquedo para evitar que as crian\u00e7as desmontem a bateria.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"669\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Snap-Fit-and-Screw-type-connection.webp\" alt=\"Liga\u00e7\u00e3o de encaixe e de parafuso\" class=\"wp-image-20179\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Snap-Fit-and-Screw-type-connection.webp 1600w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Snap-Fit-and-Screw-type-connection-300x125.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Snap-Fit-and-Screw-type-connection-1024x428.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Snap-Fit-and-Screw-type-connection-768x321.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Snap-Fit-and-Screw-type-connection-1536x642.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Snap-Fit-and-Screw-type-connection-18x8.webp 18w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<p><strong>4). Ajuste de encaixe suave:<\/strong> Alcan\u00e7ado atrav\u00e9s de <a href=\"https:\/\/firstmold.com\/pt\/services\/injection-molding\/two-shot-molding\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>moldagem por inje\u00e7\u00e3o de duas cores<\/strong><\/a>. O encaixe suave tem uma boa deforma\u00e7\u00e3o el\u00e1stica e pode ser montado e desmontado repetidamente. O pequeno punho de fecho n\u00e3o afecta a integridade do aspeto e \u00e9 normalmente utilizado para coberturas contra o p\u00f3 em interfaces de produtos electr\u00f3nicos e digitais.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"683\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Soft-snap-fit.webp\" alt=\"Ajuste de press\u00e3o suave\" class=\"wp-image-20180\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Soft-snap-fit.webp 1600w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Soft-snap-fit-300x128.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Soft-snap-fit-1024x437.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Soft-snap-fit-768x328.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Soft-snap-fit-1536x656.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Soft-snap-fit-18x8.webp 18w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-b-annular-snap-fit\">b). Encaixe anular<\/h4>\n\n\n\n<p>Este encaixe requer que uma das partes seja uma pe\u00e7a deform\u00e1vel, e a pe\u00e7a deform\u00e1vel deve preferencialmente ser feita de um material com boa resist\u00eancia para evitar fissuras ap\u00f3s m\u00faltiplas montagens.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"886\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Annular-Snap-Fit.webp\" alt=\"Encaixe de press\u00e3o anular\" class=\"wp-image-20181\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Annular-Snap-Fit.webp 1600w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Annular-Snap-Fit-300x166.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Annular-Snap-Fit-1024x567.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Annular-Snap-Fit-768x425.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Annular-Snap-Fit-1536x851.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Annular-Snap-Fit-18x10.webp 18w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<p>O encaixe anular n\u00e3o precisa de ser um c\u00edrculo completo. Deve ser projetado de acordo com a situa\u00e7\u00e3o real. Por exemplo, a tampa de garrafa abaixo tem quatro encaixes interiores divididos uniformemente em vez de um c\u00edrculo completo. A raz\u00e3o para n\u00e3o conceber um c\u00edrculo completo prende-se provavelmente com a facilidade de montagem e com o facto de se sentir bem \u00e0 m\u00e3o. Se o encaixe n\u00e3o for apertado, o comprimento do encaixe interior pode ser aumentado atrav\u00e9s da adi\u00e7\u00e3o de adesivo para posterior modifica\u00e7\u00e3o do molde.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"624\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/The-annular-snap-fit-does-not-need-to-be-a-complete-circle.webp\" alt=\"O encaixe anular n\u00e3o precisa de ser um c\u00edrculo completo\" class=\"wp-image-20182\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/The-annular-snap-fit-does-not-need-to-be-a-complete-circle.webp 1600w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/The-annular-snap-fit-does-not-need-to-be-a-complete-circle-300x117.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/The-annular-snap-fit-does-not-need-to-be-a-complete-circle-1024x399.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/The-annular-snap-fit-does-not-need-to-be-a-complete-circle-768x300.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/The-annular-snap-fit-does-not-need-to-be-a-complete-circle-1536x599.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/The-annular-snap-fit-does-not-need-to-be-a-complete-circle-18x7.webp 18w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-c-torsional-snap-fit\">c). Encaixe por tor\u00e7\u00e3o<\/h4>\n\n\n\n<p>Este encaixe funciona de forma diferente dos encaixes anteriores. Envolve duas ac\u00e7\u00f5es: primeiro, colocar as duas pe\u00e7as em posi\u00e7\u00e3o, depois rod\u00e1-las para obter o efeito de encaixe e fixa\u00e7\u00e3o.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"995\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Torsional-Snap-Fit.webp\" alt=\"Encaixe por tor\u00e7\u00e3o\" class=\"wp-image-20183\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Torsional-Snap-Fit.webp 1600w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Torsional-Snap-Fit-300x187.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Torsional-Snap-Fit-1024x637.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Torsional-Snap-Fit-768x478.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Torsional-Snap-Fit-1536x955.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Torsional-Snap-Fit-18x12.webp 18w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-2-threaded-connection\">2. Liga\u00e7\u00e3o roscada<\/h3>\n\n\n\n<p>Normalmente utilizado em garrafas de l\u00edquidos ou em campos de condutas, como garrafas de \u00e1gua mineral, tampas de garrafas de bebidas e juntas de condutas. <\/p>\n\n\n\n<p>Dicas: Clique para saber mais sobre \"<a href=\"https:\/\/firstmold.com\/pt\/tips\/types-of-threads\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>tipos de fios<\/strong><\/a>\u201c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-screw-connection\">3. Liga\u00e7\u00e3o roscada<\/h3>\n\n\n\n<p>Um m\u00e9todo muito comum e familiar para a maioria. <\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"536\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Screw-Connection-Types.webp\" alt=\"Tipos de liga\u00e7\u00e3o de parafuso\" class=\"wp-image-20184\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Screw-Connection-Types.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Screw-Connection-Types-300x161.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Screw-Connection-Types-768x412.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Screw-Connection-Types-18x10.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-4-magnetic-connection\">4. Liga\u00e7\u00e3o magn\u00e9tica<\/h3>\n\n\n\n<p>Geralmente utilizado em produtos que necessitam de ser desmontados com frequ\u00eancia. Embora a adi\u00e7\u00e3o de um \u00edman aumente o custo, uma liga\u00e7\u00e3o magn\u00e9tica bem concebida proporciona uma excelente experi\u00eancia ao utilizador, \u00e9 dur\u00e1vel e n\u00e3o prejudica a apar\u00eancia.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1092\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Magnetic-Connection.webp\" alt=\"Liga\u00e7\u00e3o magn\u00e9tica\" class=\"wp-image-20185\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Magnetic-Connection.webp 1600w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Magnetic-Connection-300x205.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Magnetic-Connection-1024x699.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Magnetic-Connection-768x524.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Magnetic-Connection-1536x1048.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Magnetic-Connection-18x12.webp 18w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-5-hinge-parts-connection\">5. Liga\u00e7\u00e3o das pe\u00e7as da dobradi\u00e7a<\/h3>\n\n\n\n<p>Refere-se especificamente a dobradi\u00e7as de pl\u00e1stico integradas feitas de polipropileno (PP), conhecido pela sua qualidade de \"cem vezes pl\u00e1stico\". Ao adicionar um suporte el\u00e1stico, pode ser fornecida pr\u00e9-tens\u00e3o para os estados aberto e fechado.<\/p>\n\n\n\n<p><em>Sugest\u00f5es: Clique na hiperliga\u00e7\u00e3o para obter uma compreens\u00e3o completa de \"<a href=\"https:\/\/firstmold.com\/pt\/guides\/pp-plastic\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Pl\u00e1sticos PP<\/strong><\/a>\".<\/em><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"736\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Living-Hinge-Connection.webp\" alt=\"Liga\u00e7\u00e3o da dobradi\u00e7a viva\" class=\"wp-image-20186\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Living-Hinge-Connection.webp 1600w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Living-Hinge-Connection-300x138.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Living-Hinge-Connection-1024x471.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Living-Hinge-Connection-768x353.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Living-Hinge-Connection-1536x707.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Living-Hinge-Connection-18x8.webp 18w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-6-press-fit-parts-connection\">6. Liga\u00e7\u00e3o de pe\u00e7as por press\u00e3o<\/h3>\n\n\n\n<p>Refere-se principalmente a liga\u00e7\u00f5es de encaixe por interfer\u00eancia. Durante a montagem mec\u00e2nica, muitas pe\u00e7as necessitam de um ajuste apertado para evitar a desconex\u00e3o ou transmitir um bin\u00e1rio significativo, o que resulta na tecnologia de interfer\u00eancia. O encaixe por interfer\u00eancia utiliza a elasticidade dos materiais para expandir ou deformar o orif\u00edcio e encaixar no veio (ou utilizar um veio oco para deformar o veio). Quando o furo regressa \u00e0 sua forma original, prende firmemente o eixo, ligando as duas partes. Nas pe\u00e7as de pl\u00e1stico, as liga\u00e7\u00f5es de blocos de constru\u00e7\u00e3o utilizam frequentemente liga\u00e7\u00f5es de encaixe com interfer\u00eancia.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"651\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Press-fit-Connection.webp\" alt=\"Liga\u00e7\u00e3o por press\u00e3o\" class=\"wp-image-20187\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Press-fit-Connection.webp 1600w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Press-fit-Connection-300x122.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Press-fit-Connection-1024x417.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Press-fit-Connection-768x312.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Press-fit-Connection-1536x625.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Press-fit-Connection-18x7.webp 18w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<p>Outros exemplos incluem v\u00e1rios tamp\u00f5es de borracha de interface externa e tamp\u00f5es de borracha com rosca.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-7-ultrasonic-welding\">7. Soldadura por ultra-sons<\/h3>\n\n\n\n<p>Uma liga\u00e7\u00e3o n\u00e3o destac\u00e1vel \u00e9 amplamente utilizada em produtos que pro\u00edbem a desmontagem ou requerem veda\u00e7\u00e3o, como adaptadores de corrente. <\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"706\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Ultrasonic-Welding.webp\" alt=\"Soldadura por ultra-sons\" class=\"wp-image-20188\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Ultrasonic-Welding.webp 1600w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Ultrasonic-Welding-300x132.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Ultrasonic-Welding-1024x452.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Ultrasonic-Welding-768x339.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Ultrasonic-Welding-1536x678.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Ultrasonic-Welding-18x8.webp 18w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-8-riveting\">8. Rebitagem<\/h3>\n\n\n\n<p>A rebitagem \u00e9 tamb\u00e9m complexa e envolve uma grande quantidade de conhecimentos. Divide-se em rebitagem por ultra-sons, rebitagem a quente e rebitagem a ar quente, com base na fonte de energia. Trata-se de uma liga\u00e7\u00e3o n\u00e3o destac\u00e1vel, particularmente adequada para ligar e fixar pe\u00e7as finas, como placas PCB, chapas met\u00e1licas e bot\u00f5es.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"381\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Riveting-for-parts-connection.webp\" alt=\"Rebitagem para liga\u00e7\u00e3o de pe\u00e7as\" class=\"wp-image-20189\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Riveting-for-parts-connection.webp 1000w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Riveting-for-parts-connection-300x114.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Riveting-for-parts-connection-768x293.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Riveting-for-parts-connection-18x7.webp 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-9-adhesive-parts-connection\">9. Liga\u00e7\u00e3o das pe\u00e7as adesivas<\/h3>\n\n\n\n<p>Refere-se \u00e0 utiliza\u00e7\u00e3o de uma camada de material (adesivo) para ligar e fixar duas partes, geralmente dif\u00edceis ou imposs\u00edveis de desmontar.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-pressure-sensitive\">Sens\u00edvel \u00e0 press\u00e3o: <\/h4>\n\n\n\n<p>Refere-se principalmente \u00e0 fita adesiva, sens\u00edvel \u00e0 press\u00e3o. Aplicando uma certa press\u00e3o consegue-se uma boa colagem, utilizando-se normalmente fita de dupla face para ligar duas partes planas!<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"543\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Pressure-sensitive-adhesive.webp\" alt=\"Adesivo sens\u00edvel \u00e0 press\u00e3o\" class=\"wp-image-20190\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Pressure-sensitive-adhesive.webp 1600w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Pressure-sensitive-adhesive-300x102.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Pressure-sensitive-adhesive-1024x348.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Pressure-sensitive-adhesive-768x261.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Pressure-sensitive-adhesive-1536x521.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Pressure-sensitive-adhesive-18x6.webp 18w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-room-temperature-curable-adhesives\">Adesivos cur\u00e1veis \u00e0 temperatura ambiente<\/h4>\n\n\n\n<p>Estas colas podem curar \u00e0 temperatura ambiente, como a borracha de silicone RTV e a cola amarela eletr\u00f3nica, normalmente utilizadas para fixar componentes electr\u00f3nicos e evitar que se soltem.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"594\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Room-Temperature-Curable-Adhesives.webp\" alt=\"Adesivos cur\u00e1veis \u00e0 temperatura ambiente\" class=\"wp-image-20191\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Room-Temperature-Curable-Adhesives.webp 1600w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Room-Temperature-Curable-Adhesives-300x111.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Room-Temperature-Curable-Adhesives-1024x380.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Room-Temperature-Curable-Adhesives-768x285.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Room-Temperature-Curable-Adhesives-1536x570.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Room-Temperature-Curable-Adhesives-18x7.webp 18w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-thermosetting-adhesives\">Adesivos termoendurec\u00edveis<\/h4>\n\n\n\n<p>Curam por aquecimento e s\u00e3o normalmente utilizados para encapsular e fixar componentes electr\u00f3nicos, tais como encapsulantes epox\u00eddicos e cola vermelha.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-thermoplastic-adhesives\">Adesivos termopl\u00e1sticos<\/h4>\n\n\n\n<p>S\u00f3lido \u00e0 temperatura ambiente, necessita de ser aquecido antes de ser utilizado para se tornar um fluido viscoso, requer pr\u00e9-prensagem e tempo de cura ap\u00f3s a utiliza\u00e7\u00e3o. Os tipos mais comuns s\u00e3o a cola termofus\u00edvel EVA e a cola termofus\u00edvel PUR. Diferen\u00e7as entre elas:<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"h-composition\">Composi\u00e7\u00e3o:<\/h5>\n\n\n\n<p><span style=\"font-size: revert; color: initial;\">PUR \u00e9 poliuretano, EVA \u00e9 acetato de etileno-vinilo.<\/span><\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"h-reaction-mechanism\">Mecanismo de rea\u00e7\u00e3o:<\/h5>\n\n\n\n<p><span style=\"font-size: revert; background-color: rgb(255, 255, 255); color: initial;\">O PUR cura pela humidade, uma rea\u00e7\u00e3o irrevers\u00edvel. Ap\u00f3s o aquecimento e a colagem, reage com a humidade do ar, tornando-se irrevers\u00edvel (n\u00e3o derrete com o reaquecimento, mas perde a sua for\u00e7a adesiva, pelo que geralmente necessita de reaquecimento para a desmontagem). Esta rea\u00e7\u00e3o irrevers\u00edvel proporciona melhor resist\u00eancia e desempenho a altas e baixas temperaturas, com elevada fiabilidade. Normalmente utilizado em produtos electr\u00f3nicos e digitais, como telefones, tablets, auriculares e eletr\u00f3nica autom\u00f3vel, para fixar ecr\u00e3s e tampas traseiras de smartphones com moldura estreita e para impermeabiliza\u00e7\u00e3o.<\/span><\/p>\n\n\n\n<p><span style=\"font-size: revert; background-color: rgb(255, 255, 255); color: initial;\">O EVA liga-se fisicamente, arrefecendo e solidificando ap\u00f3s a aplica\u00e7\u00e3o. O reaquecimento derrete-o novamente, permitindo uma nova liga\u00e7\u00e3o, tornando-o revers\u00edvel. A sua for\u00e7a adesiva \u00e9 fraca e tem um ponto de amolecimento baixo, n\u00e3o sendo resistente a temperaturas elevadas.<\/span><\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-photocuring\">Fotocura: <\/h4>\n\n\n\n<p>Refere-se a adesivos que curam sob luz ultravioleta, como a cola UV, tamb\u00e9m conhecida como adesivo de cura UV ou cola sem sombras. Trata-se de um adesivo de acrilato de componente \u00fanico, de baixa viscosidade e elevada resist\u00eancia, com um longo prazo de validade, sem solventes, de cura r\u00e1pida, boa transpar\u00eancia e excelente resist\u00eancia ao calor e a produtos qu\u00edmicos!<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1258\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Photocuring-Adhesives-For-Parts-Connection.webp\" alt=\"Adesivos de fotocura para liga\u00e7\u00e3o de pe\u00e7as\" class=\"wp-image-20192\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Photocuring-Adhesives-For-Parts-Connection.webp 1600w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Photocuring-Adhesives-For-Parts-Connection-300x236.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Photocuring-Adhesives-For-Parts-Connection-1024x805.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Photocuring-Adhesives-For-Parts-Connection-768x604.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Photocuring-Adhesives-For-Parts-Connection-1536x1208.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Photocuring-Adhesives-For-Parts-Connection-15x12.webp 15w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-water-based\">\u00c0 base de \u00e1gua: <\/h4>\n\n\n\n<p>Em compara\u00e7\u00e3o com as colas de solvente, as colas de base aquosa utilizam a \u00e1gua como solvente ou dispersante, substituindo os solventes org\u00e2nicos t\u00f3xicos que poluem o ambiente. As colas \u00e0 base de \u00e1gua actuais n\u00e3o s\u00e3o isentas de solventes e podem conter compostos org\u00e2nicos vol\u00e1teis limitados como auxiliares para controlar a viscosidade ou o fluxo. A cola \u00e0 base de \u00e1gua mais popular \u00e9 a cola branca ou a cola para madeira, normalmente utilizada na decora\u00e7\u00e3o de casas. A pasta utilizada para colar d\u00edsticos durante o Ano Novo Chin\u00eas \u00e9 tamb\u00e9m uma cola \u00e0 base de \u00e1gua, adequada para colar papel. Devido ao seu inconveniente, os criadores criaram mais tarde a cola s\u00f3lida, que \u00e9 particularmente adequada para utiliza\u00e7\u00e3o em escrit\u00f3rios.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"790\" src=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Water-based-Adhesives-For-Parts-Connection.webp\" alt=\"Adesivos \u00e0 base de \u00e1gua para liga\u00e7\u00e3o de pe\u00e7as\" class=\"wp-image-20193\" srcset=\"https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Water-based-Adhesives-For-Parts-Connection.webp 1600w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Water-based-Adhesives-For-Parts-Connection-300x148.webp 300w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Water-based-Adhesives-For-Parts-Connection-1024x506.webp 1024w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Water-based-Adhesives-For-Parts-Connection-768x379.webp 768w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Water-based-Adhesives-For-Parts-Connection-1536x758.webp 1536w, https:\/\/firstmold.com\/wp-content\/uploads\/2024\/05\/Water-based-Adhesives-For-Parts-Connection-18x9.webp 18w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-solvent-based\">\u00c0 base de solventes: <\/h4>\n\n\n\n<p>Refere-se a colas que utilizam solventes org\u00e2nicos (benzeno, tolueno, etc.) como solvente ou dispersante. Devido \u00e0s subst\u00e2ncias nocivas que afectam a sa\u00fade humana, como os compostos org\u00e2nicos vol\u00e1teis, o benzeno e o tolueno, n\u00e3o s\u00e3o amigas do ambiente. As colas \u00e0 base de solvente t\u00edpicas incluem a cola universal.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-instant-adhesive\">Adesivo instant\u00e2neo: <\/h4>\n\n\n\n<p>Feito de \u03b1-cianoacrilato como componente principal, com agentes de ader\u00eancia, estabilizadores, endurecedores e inibidores de polimeriza\u00e7\u00e3o adicionados. \u00c9 um adesivo de um componente, de cura instant\u00e2nea, que cura rapidamente em contacto com vest\u00edgios de humidade no ar, unindo firmemente as pe\u00e7as. <\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-two-part-adhesive\">Adesivo de duas partes:<\/h4>\n\n\n\n<p>Consiste em dois l\u00edquidos que endurecem ao serem misturados, frequentemente designados por cola AB. Os tipos mais comuns incluem <a href=\"https:\/\/firstmold.com\/pt\/guides\/pmma-plastic\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><em>acr\u00edlico<\/em><\/strong><\/a>cola AB, ep\u00f3xi e poliuretano. As pessoas tamb\u00e9m lhe chamam cola forte porque tem uma for\u00e7a de liga\u00e7\u00e3o elevada, compar\u00e1vel \u00e0 da soldadura.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-10-in-mold-injection-molding\">10. Moldagem por inje\u00e7\u00e3o no molde<\/h3>\n\n\n\n<p>A forma perfeita de ligar duas pe\u00e7as, combinando diferentes materiais ou cores de pl\u00e1stico ou pl\u00e1stico + metal numa s\u00f3, eliminando os passos de montagem subsequentes. No entanto, \u00e9 uma liga\u00e7\u00e3o n\u00e3o destac\u00e1vel com elevados custos de molde, pelo que o m\u00e9todo de liga\u00e7\u00e3o deve ser escolhido de acordo com a estrutura espec\u00edfica do produto. Existem tr\u00eas tipos principais: moldagem por inje\u00e7\u00e3o de duas cores, <a href=\"https:\/\/firstmold.com\/pt\/services\/injection-molding\/overmolding\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>moldagem por inje\u00e7\u00e3o secund\u00e1ria<\/strong><\/a>e moldagem por nano-inje\u00e7\u00e3o. Para mais pormenores, consulte a introdu\u00e7\u00e3o \u00e0 estrutura do molde de duas cores.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Moldagem por inje\u00e7\u00e3o a duas cores<\/strong><\/li>\n\n\n\n<li><strong>Sobremoldagem<\/strong><\/li>\n\n\n\n<li><strong>Nano Moldagem por Inje\u00e7\u00e3o<\/strong><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\">Conclus\u00e3o<\/h2>\n\n\n\n<p>Cada m\u00e9todo de liga\u00e7\u00e3o pode estender-se a muitos conte\u00fados. Se estiver interessado, pode procurar mais informa\u00e7\u00f5es para obter uma compreens\u00e3o mais aprofundada. Tamb\u00e9m apresentarei introdu\u00e7\u00f5es individuais completas a alguns destes m\u00e9todos de liga\u00e7\u00e3o em artigos futuros. Fique atento.<\/p>","protected":false},"excerpt":{"rendered":"<p>Este artigo fornece uma introdu\u00e7\u00e3o abrangente a 11 m\u00e9todos de liga\u00e7\u00e3o de pe\u00e7as pl\u00e1sticas comummente utilizados, uma boa refer\u00eancia para a conce\u00e7\u00e3o de produtos.<\/p>","protected":false},"author":5,"featured_media":31968,"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-20169","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>11 Most Common Plastic Part Connection Methods<\/title>\n<meta name=\"description\" content=\"Master efficient parts connection with First Mold&#039;s expert tips. 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