{"id":254,"date":"2022-12-19T16:30:28","date_gmt":"2022-12-19T14:30:28","guid":{"rendered":"https:\/\/www.belzona.nl\/?post_type=cases&#038;p=254"},"modified":"2025-12-02T18:48:46","modified_gmt":"2025-12-02T17:48:46","slug":"cavitatie-in-zwaarbelaste-straalbuis","status":"publish","type":"cas","link":"https:\/\/www.belzona.be\/fr\/cas\/cavitatie-in-zwaarbelaste-straalbuis\/","title":{"rendered":"Cavitation dans une tuy\u00e8re : r\u00e9paration et protection durables"},"content":{"rendered":"\n<p>Un bateau pousseur pr\u00e9sentait d\u2019importants probl\u00e8mes de cavitation au niveau de sa tuy\u00e8re. La cavitation provoquait notamment une corrosion par piq\u00fbres sur la surface de la tuy\u00e8re. Perspect Benelux a recommand\u00e9 une m\u00e9thode de r\u00e9paration et a r\u00e9alis\u00e9 le projet en collaboration avec Iris, prestataire certifi\u00e9 Belzona. Le proc\u00e9d\u00e9 de r\u00e9paration s\u2019articule en trois \u00e9tapes. La surface a \u00e9t\u00e9 pr\u00e9trait\u00e9e conform\u00e9ment aux recommandations Belzona afin de garantir une application optimale.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c9tape 1&nbsp;\u2013&nbsp;Remplissage de la corrosion par piq\u00fbres&nbsp;\u2013&nbsp;Belzona 1111<\/h2>\n\n\n\n<p>Le processus de cavitation au niveau de la tuy\u00e8re avait provoqu\u00e9 une importante corrosion par piq\u00fbres \u00e0 plusieurs endroits. La premi\u00e8re \u00e9tape de cette application a consist\u00e9 \u00e0 remplir la corrosion par piq\u00fbres avec <a href=\"https:\/\/www.belzona.be\/fr\/product\/serie-1000-metal-liquide-et-malleable\/belzona-1111\/\">Belzona 1111<\/a>. Belzona 1111 SuperMetal r\u00e9siste \u00e0 une large gamme de produits chimiques et est insensible \u00e0 la corrosion. Simple \u00e0 m\u00e9langer et \u00e0 appliquer, la p\u00e2te m\u00e9tallique peut \u00eatre travaill\u00e9e avec des outils conventionnels. Apr\u00e8s durcissement, Belzona 1111 SuperMetal offre une r\u00e9sistance \u00e0 long terme et les pi\u00e8ces m\u00e9talliques trait\u00e9es peuvent \u00eatre utilis\u00e9es \u00e0 pleine charge.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><br>\u00c9tape 2&nbsp;\u2013&nbsp;Rev\u00eatement de la tuy\u00e8re&nbsp;\u2013&nbsp;Belzona 1321<\/h2>\n\n\n\n<p>Apr\u00e8s le remplissage de la corrosion par piq\u00fbres, la tuy\u00e8re \u00e9tait pr\u00eate \u00e0 recevoir un rev\u00eatement de <a href=\"https:\/\/www.belzona.be\/fr\/product\/revetements\/belzona-1321-ceramic-s-metal\/\">Belzona 1321<\/a>.\u00a0Belzona 1111 assure la r\u00e9paration de la surface, tandis que Belzona 1321 apporte une protection durable. Appliqu\u00e9 en 2 couches, Belzona 1321 offre aux surfaces m\u00e9talliques une protection \u00e0 long terme contre l&rsquo;\u00e9rosion et la corrosion. Belzona 1321 Ceramic S Metal est un rev\u00eatement \u00e9poxy sans solvant qui, outre la protection contre l&rsquo;\u00e9rosion et la corrosion, offre une r\u00e9sistance \u00e0 de nombreux produits chimiques.<\/p>\n\n\n\n<figure class=\"wp-block-image alignwide size-full is-style-default\"><img decoding=\"async\" width=\"194\" height=\"259\" data-src=\"https:\/\/www.belzona.nl\/wp-content\/uploads\/sites\/4\/2023\/01\/2.jpg\" alt=\"\" class=\"wp-image-594 lazyload\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 194px; --smush-placeholder-aspect-ratio: 194\/259;\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><br>\u00c9tape 3&nbsp;\u2013&nbsp;Syst\u00e8me de rev\u00eatement \u00e9lastique&nbsp;\u2013&nbsp;Belzona 2141<\/h2>\n\n\n\n<p>La troisi\u00e8me \u00e9tape de cette application consiste \u00e0 appliquer une couche de finition flexible. Pour cette application, le choix s&rsquo;est port\u00e9 sur<a href=\"https:\/\/www.belzona.be\/fr\/product\/serie-polymeres\/belzona-2141-acr-fluid-elastomer-2\/\"> Belzona 2141<\/a>, qui apporte une protection contre la cavitation \u00e0 des vitesses tr\u00e8s \u00e9lev\u00e9es. Belzona 2141 est un \u00e9lastom\u00e8re polyur\u00e9thane destin\u00e9 au rev\u00eatement de surfaces m\u00e9talliques ou de composants en caoutchouc. Sa flexibilit\u00e9 assure une protection durable contre l\u2019abrasion, la cavitation, l\u2019\u00e9rosion et la corrosion. Belzona 2141 ACR Fluid Elastomer offre une r\u00e9sistance chimique \u00e9lev\u00e9e.<\/p>\n\n\n\n<figure class=\"wp-block-image alignwide size-full\"><img decoding=\"async\" width=\"194\" height=\"259\" data-src=\"https:\/\/www.belzona.nl\/wp-content\/uploads\/sites\/4\/2023\/01\/werkzaamheden.jpg\" alt=\"\" class=\"wp-image-582 lazyload\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 194px; --smush-placeholder-aspect-ratio: 194\/259;\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><br>R\u00e9sultat final<\/h2>\n\n\n\n<p>Gr\u00e2ce \u00e0 cette application durable, la tuy\u00e8re du pousseur b\u00e9n\u00e9ficie d\u00e9sormais d\u2019une protection \u00e0 long terme contre les dommages li\u00e9s \u00e0 la cavitation.<\/p>\n\n\n\n<figure class=\"wp-block-image alignwide size-full\"><img decoding=\"async\" width=\"194\" height=\"259\" 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