{"id":29664,"date":"2026-05-13T10:30:57","date_gmt":"2026-05-13T02:30:57","guid":{"rendered":"https:\/\/www.liandafiltration.com\/?p=29664"},"modified":"2026-05-13T10:45:35","modified_gmt":"2026-05-13T02:45:35","slug":"tuyaux-metalliques","status":"publish","type":"post","link":"https:\/\/www.liandafiltration.com\/fr\/tuyaux-metalliques\/","title":{"rendered":"Tuyaux m\u00e9talliques"},"content":{"rendered":"
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Tube m\u00e9tallique poreux<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Un tube m\u00e9tallique poreux est un mat\u00e9riau tubulaire poreux obtenu par frittage de poudres ou de fibres m\u00e9talliques. Ses parois pr\u00e9sentent une r\u00e9partition uniforme de nombreux pores microscopiques, ce qui permet aux gaz ou aux liquides de passer \u00e0 travers tout en retenant les particules solides.

Caract\u00e9ristiques principales

\u00b7 Allie la haute r\u00e9sistance m\u00e9canique, la r\u00e9sistance aux temp\u00e9ratures \u00e9lev\u00e9es et la r\u00e9sistance \u00e0 la corrosion des m\u00e9taux aux propri\u00e9t\u00e9s de perm\u00e9abilit\u00e9 aux fluides du papier filtre.
\u00b7 Se caract\u00e9rise par des tailles de pores r\u00e9glables (allant de quelques microns \u00e0 plusieurs centaines de microns), une porosit\u00e9 comprise entre 301 et 601, et une excellente perm\u00e9abilit\u00e9 \u00e0 l'air.
\u00b7 Peut \u00eatre soud\u00e9 et usin\u00e9, ce qui facilite sa transformation en assemblages \u00e9tanches.

Mat\u00e9riaux courants
Acier inoxydable, titane, alliages \u00e0 base de nickel, bronze, etc. Le choix du mat\u00e9riau d\u00e9pend des exigences en mati\u00e8re de r\u00e9sistance \u00e0 la temp\u00e9rature et \u00e0 la corrosion.

Principales applications
1. Filtration de pr\u00e9cision : s\u00e9paration gaz-solide et liquide-solide dans les secteurs de la chimie, de la pharmacie et de l'agroalimentaire, notamment pour le d\u00e9poussi\u00e9rage des gaz \u00e0 haute temp\u00e9rature et la r\u00e9cup\u00e9ration des catalyseurs.
2. Distribution de gaz\/barbotage : t\u00eates d'a\u00e9ration dans le traitement des eaux us\u00e9es et distributeurs de gaz dans les lits fluidis\u00e9s, produisant des bulles fines et uniformes.
3. Insonorisation et r\u00e9duction du bruit : silencieux pour les \u00e9vacuations d'air comprim\u00e9 et les composants pneumatiques.
4. Dispositifs anti-retour de flamme et protection contre les explosions : fabrication de dispositifs anti-retour de flamme tirant parti des propri\u00e9t\u00e9s d'extinction des flammes des structures poreuses.
5. Fluidisation et transport : transport par fluidisation de mat\u00e9riaux pulv\u00e9rulents.

Contr\u00f4le des fluides et protection des capteurs

\u00b7 Utilis\u00e9 pour la r\u00e9gulation et l'amortissement, et servant d'\u00e9l\u00e9ment de stabilisation du d\u00e9bit afin de lisser les fluctuations du d\u00e9bit de gaz.
\u00b7 Utilis\u00e9 dans les tubes de mesure des d\u00e9bitm\u00e8tres massiques \u00e0 effet Coriolis pour corriger le profil d'\u00e9coulement, am\u00e9liorant ainsi la pr\u00e9cision de la mesure.
\u00b7 Sert de gaine de protection pour les sondes ; dans les environnements difficiles caract\u00e9ris\u00e9s par de fortes concentrations de poussi\u00e8re ou une agitation intense, elle laisse passer le gaz tout en prot\u00e9geant les capteurs internes, assurant ainsi \u00e0 la fois une filtration, une protection contre les flammes et une protection contre les explosions.
La fonction sp\u00e9cifique est d\u00e9termin\u00e9e par le proc\u00e9d\u00e9 de fabrication, qui se r\u00e9partit principalement en trois cat\u00e9gories :
\u00b7 Frittage de poudres : m\u00e9thode la plus courante, consistant \u00e0 fritter des poudres m\u00e9talliques \u00e0 haute temp\u00e9rature dans un moule ; cela permet d'obtenir une structure poreuse homog\u00e8ne et une r\u00e9sistance m\u00e9canique \u00e9lev\u00e9e.
\u00b7 Frittage de fibres m\u00e9talliques : ce proc\u00e9d\u00e9 consiste \u00e0 compacter et \u00e0 fritter des fibres m\u00e9talliques de l'ordre du micron ; il permet d'obtenir une porosit\u00e9 extr\u00eamement \u00e9lev\u00e9e (sup\u00e9rieure \u00e0 90 %), une excellente perm\u00e9abilit\u00e9 aux gaz et une grande r\u00e9sistance aux chocs.
\u00b7 Synth\u00e8se \u00e0 haute temp\u00e9rature auto-entretenue (SHS) : utilise l'\u00e9nergie exothermique des r\u00e9actions chimiques pour alimenter le processus de synth\u00e8se ; cette m\u00e9thode est \u00e9conomique et particuli\u00e8rement adapt\u00e9e \u00e0 la fabrication de mat\u00e9riaux poreux sp\u00e9cialis\u00e9s, tels que les compos\u00e9s interm\u00e9talliques.
En termes simples, il s'agit d'un \u201c tube m\u00e9tallique respirant \u201d capable \u00e0 la fois de transporter des fluides (gaz et liquides) et d'assurer une filtration, ce qui en fait une solution extr\u00eamement pratique pour les applications o\u00f9 la r\u00e9sistance m\u00e9canique et la perm\u00e9abilit\u00e9 sont des crit\u00e8res indispensables.<\/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\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Porous Metal Tube A porous metal tube is a tubular porous material produced by sintering metal powders or fibers. Its walls feature a uniform distribution of numerous microscopic pores, allowing gases or liquids to pass through while simultaneously retaining solid particles. Key Features \u00b7 Combines the high strength, high-temperature resistance, and corrosion resistance of metals […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"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":"","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"table_tags":[],"class_list":["post-29664","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.liandafiltration.com\/fr\/wp-json\/wp\/v2\/posts\/29664","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.liandafiltration.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.liandafiltration.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.liandafiltration.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.liandafiltration.com\/fr\/wp-json\/wp\/v2\/comments?post=29664"}],"version-history":[{"count":4,"href":"https:\/\/www.liandafiltration.com\/fr\/wp-json\/wp\/v2\/posts\/29664\/revisions"}],"predecessor-version":[{"id":29668,"href":"https:\/\/www.liandafiltration.com\/fr\/wp-json\/wp\/v2\/posts\/29664\/revisions\/29668"}],"wp:attachment":[{"href":"https:\/\/www.liandafiltration.com\/fr\/wp-json\/wp\/v2\/media?parent=29664"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.liandafiltration.com\/fr\/wp-json\/wp\/v2\/categories?post=29664"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.liandafiltration.com\/fr\/wp-json\/wp\/v2\/tags?post=29664"},{"taxonomy":"table_tags","embeddable":true,"href":"https:\/\/www.liandafiltration.com\/fr\/wp-json\/wp\/v2\/table_tags?post=29664"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}