{"id":609,"date":"2021-12-28T09:25:48","date_gmt":"2021-12-28T01:25:48","guid":{"rendered":"https:\/\/showinhydro.com\/?p=609"},"modified":"2021-12-28T09:25:49","modified_gmt":"2021-12-28T01:25:49","slug":"analyse-des-defaillances-et-traitement-de-la-couche-interieure","status":"publish","type":"post","link":"https:\/\/showinhydro.com\/fr\/knowledge\/failure-analysis-and-treatment-of-inner-lining-layer\/","title":{"rendered":"Analyse des d\u00e9faillances et traitement de la couche de rev\u00eatement int\u00e9rieur"},"content":{"rendered":"<h2 class=\"wp-block-heading\">1. fissuration du caoutchouc dans la couche de rev\u00eatement du tuyau<\/h2>\n\n\n\n<p>La plupart des formulations de caoutchouc synth\u00e9tique comprennent une certaine quantit\u00e9 de plastifiant pour rendre le tuyau plus flexible. Toutefois, en raison de la temp\u00e9rature \u00e9lev\u00e9e de l'huile ou dans un environnement \u00e0 haute temp\u00e9rature, le plastifiant se r\u00e9pandra \u00e0 une certaine temp\u00e9rature. Dans un environnement \u00e0 haute temp\u00e9rature, le plastifiant d\u00e9bordera \u00e0 une certaine temp\u00e9rature, tandis que les cylindres hydrauliques, les vannes, les pompes ou d'autres composants du syst\u00e8me, en raison de la chute de pression, entra\u00eeneront une d\u00e9composition chimique progressive du fluide, mais aussi l'oxydation, la d\u00e9t\u00e9rioration et le durcissement de la couche de rev\u00eatement du tuyau, le tuyau \u00e9tant en mouvement. La couche de rev\u00eatement se fissure lorsque le tuyau est en mouvement ou pli\u00e9. Lorsque le tuyau est en mouvement ou pli\u00e9, la couche de rev\u00eatement se fissure et produit des fissures \u00e9videntes, et des suintements d'huile se produisent apr\u00e8s une longue p\u00e9riode.<\/p>\n\n\n\n<p>Traitement : La couche de rev\u00eatement doit \u00eatre remplac\u00e9e lorsque des fissures apparaissent. Syst\u00e8me hydraulique La temp\u00e9rature de fonctionnement du syst\u00e8me hydraulique ne doit pas \u00eatre sup\u00e9rieure \u00e0 la temp\u00e9rature normale pendant une longue p\u00e9riode, afin de garantir que les orifices d'\u00e9tranglement et l'huile ne sont pas endommag\u00e9s. En outre, la qualit\u00e9 de la couche de rev\u00eatement du tuyau doit r\u00e9pondre aux exigences environnementales sp\u00e9cifi\u00e9es.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2. expansion excessive de la couche de rev\u00eatement du tuyau en caoutchouc<\/h2>\n\n\n\n<p>La dilatation de la couche de rev\u00eatement s'explique par le fait que le mat\u00e9riau en caoutchouc \u00e0 l'int\u00e9rieur du tuyau ne correspond pas au milieu de circulation et que la temp\u00e9rature est hors plage. et que la temp\u00e9rature d\u00e9passe la plage d'utilisation, ce qui fait gonfler le tuyau en raison d'une r\u00e9action chimique. Ph\u00e9nom\u00e8ne.<\/p>\n\n\n\n<p>Traitement : Si ce ph\u00e9nom\u00e8ne se produit, le tuyau doit \u00eatre remplac\u00e9, v\u00e9rifier que les parties concern\u00e9es reli\u00e9es au tuyau (r\u00e9servoir d'huile, orifice d'huile, etc.) ne contiennent pas d'impuret\u00e9s r\u00e9siduelles en caoutchouc. En m\u00eame temps, v\u00e9rifier la compatibilit\u00e9 chimique du fluide de circulation et du mat\u00e9riau de la couche de rev\u00eatement, ainsi que la plage de temp\u00e9rature de travail, conform\u00e9ment aux exigences des normes correspondantes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3. la propret\u00e9 de la couche de rev\u00eatement du tuyau n'est pas satisfaisante<\/h2>\n\n\n\n<p>Le tuyau est d\u00e9mont\u00e9 avant l'assemblage, et apr\u00e8s le processus de coupe et de meulage, si le traitement n'est pas m\u00e9ticuleux, il y aura des r\u00e9sidus de poudre de caoutchouc, et en m\u00eame temps dans le processus de fabrication du tube de caoutchouc, la paroi int\u00e9rieure du tuyau sera laiss\u00e9e avec un m\u00e9lange d'huile de silicone et de poudre de caoutchouc. En outre, des bavures de traitement des m\u00e9taux ou d'autres impuret\u00e9s externes p\u00e9n\u00e8trent \u00e9galement dans le tube, ce qui nuit \u00e0 la propret\u00e9 de la couche de rev\u00eatement. La propret\u00e9 de la couche de rev\u00eatement interne n'est pas qualifi\u00e9e.<\/p>\n\n\n\n<p>Traitement : Le tuyau dont la propret\u00e9 n'est pas satisfaisante ne peut pas \u00eatre install\u00e9 sur la machine. Apr\u00e8s le d\u00e9coupage du mat\u00e9riau, la poussi\u00e8re r\u00e9siduelle doit \u00eatre souffl\u00e9e et toutes les pi\u00e8ces doivent \u00eatre nettoy\u00e9es avant l'assemblage. Le nettoyage avant l'assemblage, apr\u00e8s le flambage, doit \u00e9galement \u00eatre effectu\u00e9 \u00e0 haute pression, de l'huile \u00e0 haute pression peut \u00eatre utilis\u00e9e pour nettoyer l'int\u00e9rieur du tuyau afin de souffler les poussi\u00e8res r\u00e9siduelles et les impuret\u00e9s hors du tube. Assurez-vous que la propret\u00e9 interne du tuyau est satisfaisante et que le poids des mati\u00e8res \u00e9trang\u00e8res \u00e0 l'int\u00e9rieur du tuyau apr\u00e8s le flambage ne d\u00e9passe pas 100 mg\/m 2 , le diam\u00e8tre maximal des particules ne devant pas \u00eatre sup\u00e9rieur \u00e0 0,4 mm.<\/p>","protected":false},"excerpt":{"rendered":"<p>1.Cracking of rubber in the lining layer of the hose Most synthetic rubber formulations include a certain amount of plasticizer to to make the hose more flexible. However, due to the high temperature oil or in the high temperature environment, the plasticizer will spill out at a certain temperature. in a high temperature environment, the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-609","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.4 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Failure Analysis and Treatment of Inner Lining Layer - Xiuyuan Hydraulic Technology Co., Ltd<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/showinhydro.com\/fr\/connaissances\/analyse-des-defaillances-et-traitement-de-la-couche-interieure\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Failure Analysis and Treatment of Inner Lining Layer\" \/>\n<meta property=\"og:description\" content=\"1.Cracking of rubber in the lining layer of the hose Most synthetic rubber formulations include a certain amount of plasticizer to to make the hose more flexible. 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