{"id":2280,"date":"2026-01-05T03:17:23","date_gmt":"2026-01-05T03:17:23","guid":{"rendered":"https:\/\/www.oem-silicone.com\/?p=2280"},"modified":"2026-01-05T03:17:25","modified_gmt":"2026-01-05T03:17:25","slug":"guijiaoyingdushoreazenmexuancongshougandaomifengxingnengdedu","status":"publish","type":"post","link":"https:\/\/www.oem-silicone.com\/fr\/nouvelles\/2280\/","title":{"rendered":"Comment choisir la duret\u00e9 du silicone (Shore A) ? Correspondance entre la sensation et la performance d'\u00e9tanch\u00e9it\u00e9"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Shore A Qu'est-ce que la duret\u00e9 ?<\/h2>\n\n\n\n<p>Duret\u00e9 de la silicone couramment utilis\u00e9e <strong>Rivage A<\/strong> Indique que plus la valeur est \u00e9lev\u00e9e, plus le produit est \"dur\". La duret\u00e9 a un effet direct :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Capacit\u00e9 de scellage et de pelliculage<\/li>\n\n\n\n<li>R\u00e9sistance \u00e0 l'extrusion<\/li>\n\n\n\n<li>Sensation d'assemblage et risque d'assemblage<\/li>\n\n\n\n<li>R\u00e9sistance \u00e0 la compression et dur\u00e9e de vie (en liaison avec la formulation\/le proc\u00e9d\u00e9)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">4 questions \u00e0 poser avant de choisir la duret\u00e9<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>S'agit-il d'un joint statique ou dynamique ?<\/strong><\/li>\n\n\n\n<li><strong>L'\u00e9cart est-il important ? La pression est-elle \u00e9lev\u00e9e ?<\/strong>(D\u00e9cision d'\u00e9vincer le risque)<\/li>\n\n\n\n<li><strong>Quelle est la m\u00e9thode d'assemblage ?<\/strong>(montage manuel\/montage automatique\/avec ou sans chanfreinage)<\/li>\n\n\n\n<li><strong>Doit-il \u00eatre agr\u00e9able au toucher et \u00e0 l'\u0153il ?<\/strong>(boutons, poign\u00e9es, articles pour m\u00e8res et b\u00e9b\u00e9s, etc.)<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Comment utiliser les intervalles de duret\u00e9 courants (orient\u00e9 vers l'exp\u00e9rience)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>30-40A<\/strong>: Plus doux et mieux adapt\u00e9 aux produits dont les surfaces sont imparfaites ou qui n\u00e9cessitent un toucher doux, mais plus susceptible d'\u00eatre extrud\u00e9 ou ray\u00e9.<\/li>\n\n\n\n<li><strong>50-60A<\/strong>Les plus utilis\u00e9s, compte tenu de l'ajustement et du soutien structurel, sont couramment utilis\u00e9s dans les joints, les anneaux en silicone et les pi\u00e8ces surmoul\u00e9es.<\/li>\n\n\n\n<li><strong>70A et plus<\/strong>Plus r\u00e9sistant \u00e0 l'extrusion, plus solide, il convient pour des espaces plus importants ou des sc\u00e9narios de pression plus \u00e9lev\u00e9s ; plus sensible aux chanfreins d'assemblage et \u00e0 la qualit\u00e9 de la surface.<\/li>\n<\/ul>\n\n\n\n<p><aside> \u2705<\/p>\n\n\n\n<p>Si vous ne disposez pas de donn\u00e9es d\u00e9finitives, de nombreux projets peuvent \u00eatre valid\u00e9s en pr\u00e9levant des \u00e9chantillons de 50 \u00e0 60 A comme point de d\u00e9part, puis en proc\u00e9dant \u00e0 des ajustements pr\u00e9cis.<\/p>\n\n\n\n<p><\/aside><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">La duret\u00e9 n'est pas le seul indicateur : elle d\u00e9pend \u00e9galement de la \"recette et du processus\".<\/h2>\n\n\n\n<p>Encore une fois, 60A, les formules peuvent \u00eatre tr\u00e8s diff\u00e9rentes dans ces domaines :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>r\u00e9sistance \u00e0 la d\u00e9chirure<\/li>\n\n\n\n<li>rebond (de la bourse, etc.)<\/li>\n\n\n\n<li>Odeur et pr\u00e9cipitation<\/li>\n\n\n\n<li>r\u00e9sistance au vieillissement<\/li>\n\n\n\n<li>D\u00e9formation permanente en compression<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Quand dois-je \"r\u00e9duire la duret\u00e9\" ?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La surface d'assemblage n'est pas plane et doit \u00eatre mieux ajust\u00e9e<\/li>\n\n\n\n<li>Exigences \u00e9lev\u00e9es en mati\u00e8re d'\u00e9tanch\u00e9it\u00e9 mais compression limit\u00e9e<\/li>\n\n\n\n<li>D\u00e9sir de r\u00e9duire la force d'assemblage<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Quand dois-je m'endurcir ?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Grandes lacunes, risque d'extrusion<\/li>\n\n\n\n<li>N\u00e9cessit\u00e9 d'un soutien structurel plus fort<\/li>\n\n\n\n<li>Le produit a un mouvement relatif, il ne faut pas s'inqui\u00e9ter des bords mordants.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">M\u00e9thodes de validation sugg\u00e9r\u00e9es (plus conformes \u00e0 Google et plus faciles \u00e0 mettre en \u0153uvre)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Faites-le une fois avec un \u00e9chantillon<strong>V\u00e9rification de l'assemblage<\/strong>: Force d'assemblage, \u00e9tat de rayure<\/li>\n\n\n\n<li>le faire une fois<strong>V\u00e9rification des scell\u00e9s<\/strong>Les r\u00e9sultats de l'analyse de l'impact sur l'environnement sont les suivants : Pulv\u00e9risation\/immersion dans l'eau\/\u00e9tanch\u00e9it\u00e9 (selon vos normes).<\/li>\n\n\n\n<li>En cas de fermeture prolong\u00e9e : faire<strong>Vieillissement thermique + compression<\/strong>comparatif<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Vous pouvez soumettre des exigences comme suit<\/h3>\n\n\n\n<p>\"Pour XX joints structuraux, compression approximative XX, temp\u00e9rature de fonctionnement XX, milieu XX, m\u00e9thode d'assemblage XX, plage de duret\u00e9 recommand\u00e9e et v\u00e9rification de l'\u00e9chantillon souhait\u00e9e\".<\/p>","protected":false},"excerpt":{"rendered":"<p>Qu'est-ce que la duret\u00e9 Shore A ? La duret\u00e9 de la silicone est souvent exprim\u00e9e en Shore A. Plus le chiffre est \u00e9lev\u00e9, plus la silicone est \"dure\". La duret\u00e9 a un effet direct sur [...]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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A \u786c\u5ea6\u662f\u4ec0\u4e48\uff1f \u7845\u80f6\u786c\u5ea6\u5e38\u7528 Shore A\uff08\u90b5\u6c0f A\uff09 \u8868\u793a\uff0c\u6570\u503c\u8d8a\u5927\u8d8a\u201c\u786c\u201d\u3002\u786c\u5ea6\u4f1a\u76f4\u63a5\u5f71\u54cd\u2026","_links":{"self":[{"href":"https:\/\/www.oem-silicone.com\/fr\/wp-json\/wp\/v2\/posts\/2280","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oem-silicone.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.oem-silicone.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.oem-silicone.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oem-silicone.com\/fr\/wp-json\/wp\/v2\/comments?post=2280"}],"version-history":[{"count":1,"href":"https:\/\/www.oem-silicone.com\/fr\/wp-json\/wp\/v2\/posts\/2280\/revisions"}],"predecessor-version":[{"id":2283,"href":"https:\/\/www.oem-silicone.com\/fr\/wp-json\/wp\/v2\/posts\/2280\/revisions\/2283"}],"wp:attachment":[{"href":"https:\/\/www.oem-silicone.com\/fr\/wp-json\/wp\/v2\/media?parent=2280"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oem-silicone.com\/fr\/wp-json\/wp\/v2\/categories?post=2280"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oem-silicone.com\/fr\/wp-json\/wp\/v2\/tags?post=2280"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}