{"id":25785,"date":"2016-10-28T00:00:00","date_gmt":"2016-10-27T22:00:00","guid":{"rendered":"https:\/\/lati.com\/compound-ignifuge-en45545-exigences-materiaux-et-applications-ferroviaires\/"},"modified":"2026-05-04T14:19:07","modified_gmt":"2026-05-04T12:19:07","slug":"compound-ignifuge-en45545-exigences-materiaux-et-applications-ferroviaires","status":"publish","type":"post","link":"https:\/\/lati.com\/fr\/compound-ignifuge-en45545-exigences-materiaux-et-applications-ferroviaires\/","title":{"rendered":"Compound ignifuge EN45545 : exigences, mat\u00e9riaux et applications ferroviaires"},"content":{"rendered":"<h2>Introduction \u00e0 la norme EN45545<\/h2>\n<p>La norme EN 45545 est la norme europ\u00e9enne de r\u00e9f\u00e9rence pour le comportement au feu des mat\u00e9riaux utilis\u00e9s dans les v\u00e9hicules ferroviaires. Il d\u00e9finit des crit\u00e8res de performance li\u00e9s \u00e0 : <\/p>\n<ul>\n<li><strong>inflammabilit\u00e9<\/strong> du mat\u00e9riau (test OI \u2013 Indice d\u2019oxyg\u00e8ne)<\/li>\n<li><strong>densit\u00e9 des fum\u00e9es<\/strong> (Ds max)<\/li>\n<li><strong>toxicit\u00e9 des gaz \u00e9mis<\/strong> (CIT \u2013 Indice conventionnel de toxicit\u00e9)<\/li>\n<\/ul>\n<p>Les mat\u00e9riaux sont class\u00e9s selon des niveaux de risque croissants (<strong>HL1, HL2, HL3<\/strong>) et des sc\u00e9narios d\u2019utilisation sp\u00e9cifiques (int\u00e9rieur ou ext\u00e9rieur du v\u00e9hicule), d\u00e9crits dans les <strong>sets R22 et R23<\/strong>.<\/p>\n<h2>Compound ignifuge HF1 : formulations sans halog\u00e8nes<\/h2>\n<p>Les <strong>compounds ignifuges HF1<\/strong> sont con\u00e7us pour garantir la r\u00e9sistance au feu, une \u00e9mission r\u00e9duite de fum\u00e9es toxiques et un impact environnemental minimal.<\/p>\n<h3>Principaux avantages :<\/h3>\n<ul>\n<li><strong>Sans halog\u00e8nes<\/strong> et sans phosphore rouge : toxicit\u00e9 moindre en cas d\u2019incendie<\/li>\n<li><strong>Conforme \u00e0 la norme EN45545<\/strong> pour les applications ferroviaires<\/li>\n<li><strong>Impact environnemental r\u00e9duit<\/strong> (Low Smoke Zero Halogen \u2013 LSZH)<\/li>\n<\/ul>\n<p>Ces formulations sont id\u00e9ales pour les environnements ferm\u00e9s tels que les <strong>cabines ferroviaires<\/strong>, o\u00f9 il est crucial de prot\u00e9ger les passagers et les op\u00e9rateurs en cas d\u2019incendie.<\/p>\n<h2>\u00c9tude de cas : PA66 GF25 et certification HL3<\/h2>\n<p>L\u2019un des mat\u00e9riaux les plus performants de la famille HF1 est le <strong>PA66 renforc\u00e9 par 25 % de fibres de verre<\/strong>, \u00e9galement connu sous le nom de <strong>LATAMID 66 H2 G\/25-V0HF1<\/strong>.<\/p>\n<h3>Propri\u00e9t\u00e9s techniques cl\u00e9s :<\/h3>\n<table>\n<thead>\n<tr>\n<td><strong>Propri\u00e9t\u00e9<\/strong><\/td>\n<td><strong>Valeur<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Base polym\u00e8re<\/td>\n<td>PA66<\/td>\n<\/tr>\n<tr>\n<td>Renfort<\/td>\n<td>25 % de fibres de verre<\/td>\n<\/tr>\n<tr>\n<td>Ignifugation<\/td>\n<td>UL94 V0 jusqu\u2019\u00e0 0,75 mm<\/td>\n<\/tr>\n<tr>\n<td>Certification ferroviaire<\/td>\n<td>EN45545 \u2013 HL1, HL2, HL3 (R22 et R23)<\/td>\n<\/tr>\n<tr>\n<td>Stabilit\u00e9 dimensionnelle<\/td>\n<td>\u00c9lev\u00e9e<\/td>\n<\/tr>\n<tr>\n<td>R\u00e9sistance m\u00e9canique<\/td>\n<td>\u00c9lev\u00e9e (statique et dynamique)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ce mat\u00e9riau a pass\u00e9 les tests techniques et r\u00e9glementaires, s\u2019av\u00e9rant adapt\u00e9 aux composants <strong>internes<\/strong> et <strong>externes<\/strong> des trains, selon les crit\u00e8res <strong>R22\u2013R23<\/strong>.<\/p>\n<h2>Exemple concret : syst\u00e8me de fixation pour filtres de cabine<\/h2>\n<p>Une multinationale du secteur de la filtration a adopt\u00e9 le compound PA66 GF25 V0HF1 pour produire des <strong>bras et des syst\u00e8mes de fixation<\/strong> utilis\u00e9s dans les <strong>filtres \u00e0 air des cabines ferroviaires<\/strong>.<\/p>\n<p>Les principales raisons de ce choix \u00e9taient :<\/p>\n<ul>\n<li><strong>Certification EN45545 compl\u00e8te<\/strong> (interne\/externe, HL1-HL3)<\/li>\n<li><strong>UL94 V0 m\u00eame \u00e0 des \u00e9paisseurs r\u00e9duites<\/strong><\/li>\n<li><strong>Excellente r\u00e9sistance m\u00e9canique<\/strong><\/li>\n<li><strong>Stabilit\u00e9 dimensionnelle<\/strong> pour respecter les tol\u00e9rances<\/li>\n<\/ul>\n<p>Cette application d\u00e9montre l\u2019ad\u00e9quation du compound non seulement pour ses performances au feu, mais aussi pour les exigences de pr\u00e9cision et de durabilit\u00e9.<\/p>\n<h2>Gamme V0hf1 : variantes et alternatives techniques<\/h2>\n<p>La <strong>famille V0HF1<\/strong> comprend des compounds formul\u00e9s sur divers polym\u00e8res techniques, tous dot\u00e9s de certifications ignifuges.<\/p>\n<table>\n<thead>\n<tr>\n<td><strong>Base polym\u00e8re<\/strong><\/td>\n<td><strong>Gamme % fibres de verre<\/strong><\/td>\n<td><strong>Certifications<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>PA66<\/strong><\/td>\n<td>25 %\u201350 %<\/td>\n<td>UL94 V0, EN45545<\/td>\n<\/tr>\n<tr>\n<td><strong>PBT<\/strong><\/td>\n<td>Jusqu\u2019\u00e0 30 %<\/td>\n<td>UL94 V0<\/td>\n<\/tr>\n<tr>\n<td><strong>PPA<\/strong><\/td>\n<td>Personnalisable<\/td>\n<td>UL94 V0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ces alternatives permettent de r\u00e9pondre \u00e0 des exigences <strong>m\u00e9caniques<\/strong>, <strong>thermiques<\/strong> ou <strong>\u00e9lectriques<\/strong> plus strictes, en rempla\u00e7ant les mat\u00e9riaux thermodurcissables traditionnels.<\/p>\n<h2>FAQ \u2013 Compound ignifuge EN45545<\/h2>\n<ol>\n<li><strong> What does \u00ab\u00a0EN45545 flame-retardant compound\u00a0\u00bb mean?<\/strong><br \/>\nIl s\u2019agit d\u2019une mati\u00e8re plastique technique qui r\u00e9pond aux exigences de r\u00e9action au feu d\u00e9finies par la norme EN45545, y compris le comportement en mati\u00e8re de fum\u00e9e et de toxicit\u00e9.<\/li>\n<li><strong> What is the difference between UL94 V0 and EN45545?<\/strong><br \/>\nL\u2019UL94 mesure la r\u00e9sistance \u00e0 la flamme verticale ; l\u2019EN45545 \u00e9value \u00e9galement la toxicit\u00e9 et la densit\u00e9 des fum\u00e9es, selon des sc\u00e9narios ferroviaires sp\u00e9cifiques.<\/li>\n<li><strong> For which applications is PA66 V0HF1 suitable?<\/strong><br \/>\nPour les supports, les fixations, les syst\u00e8mes d\u2019attache ou les \u00e9l\u00e9ments structurels du secteur ferroviaire o\u00f9 l\u2019ignifugation, la rigidit\u00e9 et la conformit\u00e9 r\u00e9glementaire sont requises.<\/li>\n<\/ol>\n<h2><strong>Conclusion<\/strong><\/h2>\n<p>If you are designing components for the railway sector, consider <strong>halogen-free<\/strong> solutions certified <strong>EN45545<\/strong>. <a href=\"https:\/\/lati.com\/fr\/nous-contacter\/\">Contactez-nous pour en savoir plus.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les innovations r\u00e9centes des compounds thermoplastiques ignifuges de LATI S.p.A. ont suscit\u00e9 l\u2019int\u00e9r\u00eat des concepteurs travaillant dans le secteur du transport ferroviaire.<\/p>\n","protected":false},"author":1,"featured_media":25786,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[624,642,615,619],"tags":[],"class_list":["post-25785","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-auto-extinguibles","category-automobile-et-transports","category-rd","category-secteur-ferroviaire"],"acf":[],"yoast_head":"<!-- This site is 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