{"id":25095,"date":"2023-12-08T11:13:05","date_gmt":"2023-12-08T16:13:05","guid":{"rendered":"https:\/\/www.elastoproxy.com\/?p=25095"},"modified":"2023-12-08T11:22:10","modified_gmt":"2023-12-08T16:22:10","slug":"proprietes-thermiques-electriques","status":"publish","type":"post","link":"https:\/\/www.elastoproxy.com\/fr\/proprietes-thermiques-electriques\/","title":{"rendered":"Propri\u00e9t\u00e9s thermiques et \u00e9lectriques"},"content":{"rendered":"\t\t
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Quel est le bon type de caoutchouc pour votre application d\u2019\u00e9tanch\u00e9it\u00e9 industrielle? Il des propri\u00e9t\u00e9s thermiques et \u00e9lectriques \u00e0 consid\u00e9rer.\u00a0\u00a0<\/p>

Propri\u00e9t\u00e9s thermiques<\/strong><\/h2>

Les compos\u00e9s de caoutchouc pour l\u2019\u00e9tanch\u00e9it\u00e9 industrielle ont deux propri\u00e9t\u00e9s thermiques principales\u00a0: la temp\u00e9rature de service et le vieillissement thermique. Les deux sont donn\u00e9s comme une gamme avec des temp\u00e9ratures minimales et maximales. Avec les propri\u00e9t\u00e9s thermiques, il est important de se rappeler que la temp\u00e9rature seule n\u2019affecte pas les performances. La charge m\u00e9canique, le contact avec des produits chimiques et la dur\u00e9e de l\u2019exposition \u00e0 haute temp\u00e9rature et \u00e0 basse temp\u00e9rature sont \u00e9galement des facteurs.\u00a0\u00a0\u00a0\u00a0\u00a0<\/p>

Temp\u00e9rature de service<\/strong><\/h3>

Les temp\u00e9ratures de service<\/a> sont les temp\u00e9ratures les plus \u00e9lev\u00e9es et les plus basses auxquelles un compos\u00e9 peut \u00eatre utilis\u00e9. Si votre application est plus chaude que la temp\u00e9rature de service maximale ou plus froide que la temp\u00e9rature de service minimale, une d\u00e9faillance du joint se produira. Cette d\u00e9faillance n\u2019est peut-\u00eatre pas imm\u00e9diate, mais elle se produira beaucoup plus rapidement que si vous d\u00e9passez les limites de service continu du complexe.<\/p>

Vieillissement \u00e0 la chaleur (limites de service continu)<\/strong><\/h3>

Le vieillissement thermique, une r\u00e9duction des propri\u00e9t\u00e9s des mat\u00e9riaux, se produit naturellement lorsqu\u2019un compos\u00e9 est expos\u00e9 \u00e0 des temp\u00e9ratures de service normales au fil du temps. Les limites de service continu sont la gamme de temp\u00e9ratures \u00e0 laquelle un compos\u00e9 peut \u00eatre utilis\u00e9 sans une r\u00e9duction significative de ses propri\u00e9t\u00e9s. Cela inclut les propri\u00e9t\u00e9s physiques telles que la r\u00e9sistance \u00e0 la traction et la r\u00e9sistance aux chocs, mais aussi la r\u00e9sistance di\u00e9lectrique, qui est une propri\u00e9t\u00e9 \u00e9lectrique.<\/p>

Propri\u00e9t\u00e9s \u00e9lectriques<\/strong><\/h2>

Les compos\u00e9s de caoutchouc pour l\u2019\u00e9tanch\u00e9it\u00e9 industrielle ont deux propri\u00e9t\u00e9s \u00e9lectriques principales\u00a0: la r\u00e9sistance di\u00e9lectrique et l\u2019isolation \u00e9lectrique. Parce que le caoutchouc est normalement un isolant \u00e9lectrique, il peut aider \u00e0 prot\u00e9ger contre les chocs \u00e9lectriques. En revanche, les m\u00e9taux sont \u00e9lectriquement conducteurs au lieu d\u2019isolants \u00e9lectriques.\u00a0<\/p>

Force di\u00e9lectrique<\/strong><\/h3>

La r\u00e9sistance di\u00e9lectrique d\u00e9crit la r\u00e9sistance d\u2019un compos\u00e9 \u00e0 la d\u00e9gradation di\u00e9lectrique, le point auquel un mat\u00e9riau isolant cesse d\u2019emp\u00eacher le courant de circuler sous contrainte \u00e9lectrique. Les compos\u00e9s de caoutchouc sont de bons isolants \u00e9lectriques, mais seulement dans une mesure. Si un compos\u00e9 atteint une d\u00e9gradation di\u00e9lectrique, il commencera \u00e0 conduire l\u2019\u00e9lectricit\u00e9 jusqu\u2019\u00e0 ce que la tension soit r\u00e9duite.\u00a0\u00a0<\/p>

Isolation \u00e9lectrique<\/strong><\/h3>

L\u2019isolation \u00e9lectrique d\u00e9crit la r\u00e9sistance d\u2019un compos\u00e9 \u00e0 l\u2019\u00e9coulement du courant \u00e9lectrique. C\u2019est diff\u00e9rent de la force di\u00e9lectrique, qui est fonction d\u2019une tension maximale. La tension mesure l\u2019\u00e9nergie potentielle \u00e9lectrique par unit\u00e9 de charge. Les volts (V) sont l\u2019unit\u00e9 de mesure. Le courant est le flux de charge \u00e9lectrique \u00e0 travers un circuit. L\u2019amp\u00e8re (amps) est l\u2019unit\u00e9 de mesure.\u00a0\u00a0\u00a0<\/p>

Trouver les propri\u00e9t\u00e9s thermiques et \u00e9lectriques des mat\u00e9riaux en caoutchouc<\/strong><\/h2>

Pour plus d\u2019informations sur la s\u00e9lection du bon caoutchouc pour les joints industriels, contactez Elasto Proxy<\/a>.\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Les temp\u00e9ratures de service, le vieillissement thermique, la r\u00e9sistance di\u00e9lectrique et l\u2019isolation \u00e9lectrique sont les principales propri\u00e9t\u00e9s thermiques et \u00e9lectriques. 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