{"id":1189,"date":"2021-02-23T21:40:02","date_gmt":"2021-02-23T21:40:02","guid":{"rendered":"https:\/\/mmcholding.net\/fr\/wp_new\/?page_id=1189"},"modified":"2021-04-11T20:48:02","modified_gmt":"2021-04-11T20:48:02","slug":"controle-de-la-chute-de-tension-de-la-cathode","status":"publish","type":"page","link":"https:\/\/mmcholding.org\/fr\/controle-de-la-chute-de-tension-de-la-cathode\/","title":{"rendered":"Contr\u00f4le de la chute de tension de la cathode"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1189\" class=\"elementor elementor-1189\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-14473048 elementor-section-full_width elementor-section-height-min-height elementor-section-content-top elementor-section-height-default elementor-section-items-middle\" data-id=\"14473048\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\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-687d60c4\" data-id=\"687d60c4\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\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-f5929cb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f5929cb\" 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-50 elementor-top-column elementor-element elementor-element-2f303f10\" data-id=\"2f303f10\" 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-4a920fd elementor-widget elementor-widget-global elementor-global-2393 elementor-widget-shortcode\" data-id=\"4a920fd\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\"><div id=\"bellows-main-20\" class=\"bellows bellows-nojs bellows-main bellows-source-menu bellows-align-full bellows-skin-vanilla bellows-type- bellows-expand-current\"><ul id=\"menu-solutions-menu\" class=\"bellows-nav\" data-bellows-config=\"main\"><li id=\"menu-item-741\" class=\"bellows-menu-item bellows-menu-item-type-custom bellows-menu-item-object-custom bellows-menu-item-has-children bellows-menu-item-741 bellows-item-level-0\"><span  class=\"bellows-target\"><span class=\"bellows-target-title bellows-target-text\">Acier<\/span><button class=\"bellows-subtoggle\" aria-label=\"Toggle Submenu\"><i class=\"bellows-subtoggle-icon-expand fa fa-chevron-down\"><\/i><i class=\"bellows-subtoggle-icon-collapse fa fa-chevron-up\"><\/i><\/button><\/span>\n<ul class=\"bellows-submenu\">\n\t<li id=\"menu-item-1141\" class=\"bellows-menu-item bellows-menu-item-type-custom bellows-menu-item-object-custom bellows-menu-item-1141 bellows-item-level-1\"><a  href=\"https:\/\/mmcholding.org\/fr\/controle-de-la-temperature\/\" class=\"bellows-target\"><span class=\"bellows-target-title bellows-target-text\">Contr\u00f4le de la temp\u00e9rature<\/span><\/a><\/li>\n\t<li id=\"menu-item-743\" class=\"bellows-menu-item bellows-menu-item-type-custom bellows-menu-item-object-custom bellows-menu-item-743 bellows-item-level-1\"><a  href=\"https:\/\/mmcholding.org\/fr\/controle-de-lactivite-de-loxygene\/\" class=\"bellows-target\"><span class=\"bellows-target-title bellows-target-text\">Contr\u00f4le de 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COULISSANTES<\/span><\/a><\/li>\n\t<li id=\"menu-item-1451\" class=\"bellows-menu-item bellows-menu-item-type-custom bellows-menu-item-object-custom bellows-menu-item-1451 bellows-item-level-1\"><a  href=\"https:\/\/mmcholding.org\/fr\/palais-de-qualite-tundish-slide-gate\/\" class=\"bellows-target\"><span class=\"bellows-target-title bellows-target-text\">PALAIS DE QUALIT\u00c9 TUNDISH SLIDE-GATE<\/span><\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul><\/div><\/div>\n\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<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-1226fd10\" data-id=\"1226fd10\" 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-61f1a152 elementor-widget elementor-widget-text-editor\" data-id=\"61f1a152\" 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<h3><span style=\"color: #000000;\"><strong>Aluminium<\/strong><\/span><\/h3><p><span style=\"color: #000000;\">Des capteurs pour mesurer la temp\u00e9rature du bain, la temp\u00e9rature Liquidus (surchauffe) et la chute de tension de la cathode sont \u00a0propos\u00e9s pour les applications dans les cellules de r\u00e9duction Cryolite dans l&#8217;industrie de l&#8217;aluminium primaire<br \/><br \/><\/span><\/p><h4><span style=\"color: #ee342f;\">Contr\u00f4le de la chute de tension de la cathode<\/span><\/h4><p><span style=\"color: #000000;\">La mesure de la chute de tension \u00e0 travers le rev\u00eatement de cathode est une m\u00e9thode bien \u00e9tablie pour surveiller l&#8217;\u00e9tat du rev\u00eatement de cathode dans de nombreux fours.\u00a0Bien qu&#8217;il s&#8217;agisse d&#8217;une mesure relativement rare, dans de nombreux fours, la chute de tension \u00e0 travers la cathode, si elle est mesur\u00e9e correctement, s&#8217;av\u00e8re fournir des informations importantes sur le comportement d&#8217;une cathode en fonction de son \u00e2ge.\u00a0Une mesure pr\u00e9cise de la chute de tension aux bornes du rev\u00eatement cathodique permet \u00e9galement d&#8217;optimiser la cible de tension.\u00a0De plus, avec des mesures CVD pr\u00e9cises, une surveillance r\u00e9guli\u00e8re mettra en \u00e9vidence des anomalies telles que diff\u00e9rents types d&#8217;accumulation de mat\u00e9riaux.\u00a0Une application suppl\u00e9mentaire de la mesure CVD est la capacit\u00e9 de comparer le comportement de diff\u00e9rents types de cathodes ou de diff\u00e9rents fournisseurs de cathodes.<\/span><\/p><p><span style=\"color: #000000;\">La mise en \u0153uvre r\u00e9ussie des applications d\u00e9crites ci-dessus d\u00e9pend de la fiabilit\u00e9 et de la pr\u00e9cision du proc\u00e9d\u00e9 de mesure de la chute de tension \u00e0 travers le rev\u00eatement de cathode.\u00a0En gardant \u00e0 l&#8217;esprit les limitations ci-dessus, le capteur jetable CV-Therm a \u00e9t\u00e9 d\u00e9velopp\u00e9 pour fournir une mesure combin\u00e9e de la temp\u00e9rature du bain de cryolite et de la chute de tension \u00e0 travers le rev\u00eatement de cathode.\u00a0Le capteur combin\u00e9 pour la temp\u00e9rature du bain et la mesure CVD se compose d&#8217;un thermocouple jetable et d&#8217;une feuille d&#8217;acier plac\u00e9e le long de l&#8217;ext\u00e9rieur du tube de protection en carton con\u00e7u pour entrer en contact avec le m\u00e9tal.\u00a0Le circuit est ferm\u00e9 lorsqu&#8217;un contact \u00e9lectrique est \u00e9tabli avec la barre, puis la chute de tension aux bornes du rev\u00eatement de cathode est r\u00e9alis\u00e9e dans l&#8217;instrument associ\u00e9.<\/span><\/p><p><span style=\"color: #000000;\">La mesure est effectu\u00e9e en deux \u00e9tapes.\u00a0Dans le premier, la mesure de temp\u00e9rature est effectu\u00e9e dans le bain de cryolithe comme d\u00e9j\u00e0 d\u00e9crit pr\u00e9c\u00e9demment, \u00e0 l&#8217;aide d&#8217;un thermocouple Pt-PtRh.\u00a0Lorsque la temp\u00e9rature du bain a \u00e9t\u00e9 obtenue, le capteur est immerg\u00e9 au fond du pot pour mesurer la chute de tension \u00e0 travers le rev\u00eatement de cathode.\u00a0Au total, la mesure se fait en moins de 20 secondes.\u00a0Un instrument portable avec une capacit\u00e9 de stockage de donn\u00e9es est disponible pour la mesure.<\/span><\/p><p><span style=\"color: #000000;\"><span style=\"color: #ff9900;\"><strong>Capteur:<\/strong>\u00a0<\/span>CV-Therm<\/span><\/p><p><a href=\"https:\/\/mmcholding.org\/fr\/wp_new\/wp-content\/uploads\/2021\/02\/digi2_image_w1300-150x150-1.jpg\">\u00a0\u00a0<\/a><a href=\"https:\/\/mmcholding.org\/fr\/wp-content\/uploads\/2021\/02\/digi2_image_w1300-150x150-1.jpg\"><img decoding=\"async\" class=\"alignleft wp-image-1886 size-full\" src=\"https:\/\/mmcholding.org\/fr\/wp-content\/uploads\/2021\/02\/digi2_image_w1300-150x150-1.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a> <a href=\"https:\/\/mmcholding.org\/fr\/wp-content\/uploads\/2021\/02\/CVD_sensors_-_with_tesa_image_w1300-150x150-1.png\"><img decoding=\"async\" class=\"alignleft wp-image-1887 size-full\" src=\"https:\/\/mmcholding.org\/fr\/wp-content\/uploads\/2021\/02\/CVD_sensors_-_with_tesa_image_w1300-150x150-1.png\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/p>\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<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Aluminium Des capteurs pour mesurer la temp\u00e9rature du bain, la temp\u00e9rature Liquidus (surchauffe) et la chute de tension de la cathode sont \u00a0propos\u00e9s pour les applications dans les cellules de r\u00e9duction Cryolite dans l&#8217;industrie de l&#8217;aluminium primaire Contr\u00f4le de la chute de tension de la cathode La mesure de la chute de tension \u00e0 travers [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"footnotes":""},"class_list":["post-1189","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/mmcholding.org\/fr\/wp-json\/wp\/v2\/pages\/1189","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mmcholding.org\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/mmcholding.org\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/mmcholding.org\/fr\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/mmcholding.org\/fr\/wp-json\/wp\/v2\/comments?post=1189"}],"version-history":[{"count":32,"href":"https:\/\/mmcholding.org\/fr\/wp-json\/wp\/v2\/pages\/1189\/revisions"}],"predecessor-version":[{"id":3868,"href":"https:\/\/mmcholding.org\/fr\/wp-json\/wp\/v2\/pages\/1189\/revisions\/3868"}],"wp:attachment":[{"href":"https:\/\/mmcholding.org\/fr\/wp-json\/wp\/v2\/media?parent=1189"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}