{"id":21982,"date":"2022-01-09T09:09:46","date_gmt":"2022-01-09T09:09:46","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=21982"},"modified":"2022-06-30T08:43:04","modified_gmt":"2022-06-30T08:43:04","slug":"tests-sur-les-mt-et-les-pt","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/fr\/blog\/tests-sur-les-mt-et-les-pt\/","title":{"rendered":"Tests MT et PT"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"21982\" class=\"elementor elementor-21982\" data-elementor-post-type=\"blog\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-fa6cc64 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fa6cc64\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-25965e4\" data-id=\"25965e4\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e03d3b9 elementor-widget elementor-widget-heading\" data-id=\"e03d3b9\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Tests MT et PT<\/h2>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-99ceb08 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"99ceb08\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6c3abda\" data-id=\"6c3abda\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f12507c elementor-widget elementor-widget-text-editor\" data-id=\"f12507c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Qu'est-ce que les essais de magn\u00e9toscopie et de ressuage dans les END ? Quelle est la diff\u00e9rence entre MT et PT ? Sont-ils disponibles pour nos raccords de tuyauterie en acier inoxydable ? Cet article vous expliquera la diff\u00e9rence.<\/p><h2><strong>Qu'est-ce que le test MT ?<\/strong><\/h2><p>MT est le contr\u00f4le par magn\u00e9toscopie. Cette m\u00e9thode est l'interaction entre la fuite du champ magn\u00e9tique provenant des d\u00e9fauts de la pi\u00e8ce et la poudre magn\u00e9tique. S'il y a des d\u00e9fauts sur la surface de l'acier et pr\u00e8s de la surface (comme des fissures, des inclusions de scories, des grains, etc.), la perm\u00e9abilit\u00e9 de la surface sera diff\u00e9rente de la perm\u00e9abilit\u00e9 originale de l'acier. ), la perm\u00e9abilit\u00e9 de la surface sera diff\u00e9rente de la perm\u00e9abilit\u00e9 originale de l'acier. Par cons\u00e9quent, le champ magn\u00e9tique sera interrompu et formera une distorsion du champ magn\u00e9tique, ce qui entra\u00eenera une fuite du champ magn\u00e9tique de la pi\u00e8ce. La poudre magn\u00e9tique sera attir\u00e9e et accumul\u00e9e par la distorsion, et formera une trace magn\u00e9tique. Si les conditions de lumi\u00e8re sont disponibles, l'emplacement et la forme du d\u00e9faut seront montr\u00e9s, afin que nous puissions observer et expliquer ces poudres.<\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2562b76 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2562b76\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0b52a79\" data-id=\"0b52a79\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cfbf2a3 elementor-widget elementor-widget-text-editor\" data-id=\"cfbf2a3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2><strong>Qu'est-ce qu'un test de ressuage ?<\/strong><\/h2><p>Le test de p\u00e9n\u00e9tration de liquide, connu sous le nom de PT, est une sorte de test non destructif (test NDT). Il est utilis\u00e9 pour d\u00e9tecter certains dommages caus\u00e9s par des fissures que les yeux ne peuvent pas identifier, comme la d\u00e9tection des d\u00e9fauts proches de la surface (fissures) des mat\u00e9riaux en acier inoxydable, la porosit\u00e9, le rel\u00e2chement, les couches, les d\u00e9fauts de fusion incompl\u00e8te et de fusion incompl\u00e8te, etc.<\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-717ad90 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"717ad90\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e7a857f\" data-id=\"e7a857f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9b1038c elementor-widget elementor-widget-image\" data-id=\"9b1038c\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1000\" height=\"656\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2022\/01\/MT-testing-of-carbon-steel-pipe-fittings1.jpg\" class=\"attachment-large size-large wp-image-21985\" alt=\"Essai MT des raccords de tuyauterie en acier au carbone\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2022\/01\/MT-testing-of-carbon-steel-pipe-fittings1.jpg 1000w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2022\/01\/MT-testing-of-carbon-steel-pipe-fittings1-600x394.jpg 600w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2022\/01\/MT-testing-of-carbon-steel-pipe-fittings1-300x197.jpg 300w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2022\/01\/MT-testing-of-carbon-steel-pipe-fittings1-768x504.jpg 768w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2022\/01\/MT-testing-of-carbon-steel-pipe-fittings1-18x12.jpg 18w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\t\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-552f29f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"552f29f\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-cbb9449\" data-id=\"cbb9449\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5678ab9 elementor-widget elementor-widget-heading\" data-id=\"5678ab9\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Quelle est la diff\u00e9rence entre MT et PT<\/h2>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-02e502b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"02e502b\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6a95abe\" data-id=\"6a95abe\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-78f7f49 elementor-widget elementor-widget-text-editor\" data-id=\"78f7f49\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>I. Des principes diff\u00e9rents<\/strong><\/h3><p>Test MT : Cette m\u00e9thode consiste \u00e0 d\u00e9tecter les d\u00e9fauts sur ou pr\u00e8s de la surface des mat\u00e9riaux ferromagn\u00e9tiques par des poudres magn\u00e9tiques dans la fuite du champ magn\u00e9tique. Cela n\u00e9cessite de magn\u00e9tiser les produits, afin que la partie d\u00e9fectueuse puisse attirer les poudres magn\u00e9tiques. Ainsi, les d\u00e9fauts sur ou pr\u00e8s de la surface peuvent \u00eatre observ\u00e9s.<\/p><p>Cette m\u00e9thode est simple et intuitive. Cette m\u00e9thode d'essai appartient aux essais magn\u00e9tiques, et les autres essais magn\u00e9tiques comprennent : l'utilisation de composants \u00e0 effet Hall et de composants semi-conducteurs sensibles au magn\u00e9tisme ; l'utilisation d'un enregistrement sur bande magn\u00e9tique ; et l'utilisation de la force \u00e9lectromotrice d'une bobine d'induction.<\/p><p>Ressuage : Cette m\u00e9thode consiste \u00e0 utiliser un colorant \u00e0 \u00e9taler sur la surface du mat\u00e9riau, et le colorant va p\u00e9n\u00e9trer dans les zones endommag\u00e9es. Ensuite, il faut nettoyer le colorant apr\u00e8s l'avoir plac\u00e9 pendant un certain temps, et saupoudrer le r\u00e9v\u00e9lateur. Apr\u00e8s cela, on peut voir clairement la zone endommag\u00e9e.<\/p><p>Cette m\u00e9thode est r\u00e9alis\u00e9e par le ph\u00e9nom\u00e8ne de capillarit\u00e9 : le liquide perm\u00e9able va laver le colorant qui a p\u00e9n\u00e9tr\u00e9 dans les d\u00e9fauts. Et le colorant r\u00e9siduel sera absorb\u00e9 gr\u00e2ce \u00e0 l'action capillaire. Par cons\u00e9quent, les d\u00e9fauts peuvent \u00eatre d\u00e9tect\u00e9s.<\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6db0c09 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6db0c09\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e954e63\" data-id=\"e954e63\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-28497a8 elementor-widget elementor-widget-image\" data-id=\"28497a8\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1000\" height=\"810\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2022\/01\/PT-testing-for-stainless-steel-flange-2.jpg\" class=\"attachment-large size-large wp-image-21984\" alt=\"Essai de ressuage pour les brides en acier inoxydable\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2022\/01\/PT-testing-for-stainless-steel-flange-2.jpg 1000w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2022\/01\/PT-testing-for-stainless-steel-flange-2-600x486.jpg 600w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2022\/01\/PT-testing-for-stainless-steel-flange-2-300x243.jpg 300w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2022\/01\/PT-testing-for-stainless-steel-flange-2-768x622.jpg 768w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2022\/01\/PT-testing-for-stainless-steel-flange-2-15x12.jpg 15w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\t\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-aaa020d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"aaa020d\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-24f33c4\" data-id=\"24f33c4\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a50c3c7 elementor-widget elementor-widget-text-editor\" data-id=\"a50c3c7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>II. Les diff\u00e9rentes applications<\/strong><\/h3><p>Test de magn\u00e9toscopie : Dans le domaine industriel, ce test peut \u00eatre utilis\u00e9 comme inspection finale du produit fini, pour s'assurer qu'aucun d\u00e9faut nuisible ne subsiste \u00e0 la surface apr\u00e8s diverses proc\u00e9dures de traitement (telles que la soudure, le traitement thermique du m\u00e9tal, le meulage). En outre, il peut \u00e9galement \u00eatre utilis\u00e9 pour l'inspection des produits semi-finis et des mati\u00e8res premi\u00e8res telles que les barres, les billettes, les pi\u00e8ces forg\u00e9es, les pi\u00e8ces moul\u00e9es, etc. pour trouver les d\u00e9fauts de surface existants.<\/p><p>Et pour l'entretien des pi\u00e8ces d'acier importantes dans les chemins de fer, l'aviation et d'autres d\u00e9partements de transport, ainsi que pour la fonderie, la chimie, l'\u00e9nergie et toutes sortes de fabricants de machines, ils adoptent \u00e9galement cette m\u00e9thode pour savoir s'il y a des fissures de fatigue ou d'autres d\u00e9fauts dans leurs machines, afin d'\u00e9viter que l'\u00e9quipement ne subisse des accidents d\u00e9sastreux.<\/p><p>Ressuage : Cette m\u00e9thode convient \u00e0 l'inspection des mat\u00e9riaux m\u00e9talliques denses (soudures), des mat\u00e9riaux non m\u00e9talliques (verre, c\u00e9ramique, plastiques fluor\u00e9s) et des d\u00e9fauts d'ouverture \u00e0 la surface des produits (fissures, pores, etc.).<\/p><h3><strong>III. Diff\u00e9rents mat\u00e9riaux applicables <\/strong><\/h3><p>Bien que le contr\u00f4le par magn\u00e9toscopie et le contr\u00f4le par ressuage soient des contr\u00f4les non destructifs, les mat\u00e9riaux auxquels ils peuvent \u00eatre appliqu\u00e9s sont encore diff\u00e9rents. Le premier utilise le magn\u00e9tisme de l'acier et le champ magn\u00e9tique pour d\u00e9tecter les d\u00e9fauts, et il est largement utilis\u00e9 dans l'acier au carbone, l'acier alli\u00e9 et d'autres mat\u00e9riaux qui ont un magn\u00e9tisme, comme notre ASTM <a href=\"https:\/\/www.kaysuns.com\/fr\/bride-en-acier-inoxydable\/\" target=\"_blank\">Bride A105<\/a>ASTM A234 WPB et WP11, P22, P5, P91 et autres raccords de tuyauterie en alliage.<\/p><h2><strong>Que ferons-nous pour notre produit ?<\/strong><\/h2><p>Pour la plupart des mat\u00e9riaux en acier inoxydable, ils sont toujours non magn\u00e9tiques ou faiblement magn\u00e9tiques. Par cons\u00e9quent, le contr\u00f4le par ressuage est le meilleur choix. Kaysuns fournit <a href=\"https:\/\/www.kaysuns.com\/fr\/\" target=\"_blank\">raccords de tuyauterie et brides en acier inoxydable<\/a> avec test PT 100%. N'h\u00e9sitez pas \u00e0 nous contacter si vous avez des exigences. 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