{"id":33497,"date":"2025-03-18T16:56:39","date_gmt":"2025-03-18T08:56:39","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=33497"},"modified":"2025-03-18T16:56:47","modified_gmt":"2025-03-18T08:56:47","slug":"how-to-prevent-copper-exposure-of-copper-clad-aluminum-strip","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/how-to-prevent-copper-exposure-of-copper-clad-aluminum-strip\/","title":{"rendered":"How to prevent copper exposure of copper clad aluminum strip"},"content":{"rendered":"<p>exist<a href=\"https:\/\/www.ray-tron.com\/en\/tongbaolvdai\/\" data-internallinksmanager029f6b8e52c=\"178\" title=\"Copper clad aluminum strip manufacturer_Copper clad aluminum wire supplier_Copper clad aluminum strip wholesaler manufacturer\">Copper clad aluminum strip<\/a>During the production and use of (CCA belt),<strong>Copper<\/strong>is a common and serious problem. Exposed copper can cause<strong>Poor welding and reduced electrical conductivity<\/strong>, and even affect<a href=\"https:\/\/www.ray-tron.com\/en\/\" data-internallinksmanager029f6b8e52c=\"14\" title=\"Photovoltaic modules\">Photovoltaic modules<\/a>long-term stability.<\/p><p>In order to ensure the quality and reliability of copper clad aluminum strip, the following are precautions<strong>Copper<\/strong>Key measures:<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">\ud83c\udf1f <strong>1\ufe0f\u20e3 Calendering process control<\/strong><\/h2><h3 class=\"wp-block-heading\">\ud83c\udfaf <strong>Precision rolling to ensure uniform copper layer thickness<\/strong><\/h3><ul class=\"wp-block-list\"><li>use<strong>High precision calendering equipment<\/strong>, control the copper layer thickness<strong>0.02mm-0.05mm<\/strong>In range<\/li>\n\n<li>Ensure that the copper layer is evenly distributed to prevent the local copper layer from being too thin and causing copper exposure<\/li>\n\n<li><a href=\"https:\/\/www.ray-tron.com\/en\/\" data-internallinksmanager029f6b8e52c=\"19\" title=\"Ruichuang 2\">Raytron<\/a>\uff08<a href=\"https:\/\/www.ray-tron.com\/en\/\" data-internallinksmanager029f6b8e52c=\"18\" title=\"Raytron\">Raytron<\/a>)pass<strong>13 high-precision 4-row rolling mills<\/strong>, which can ensure the stability of the combination of copper layer and aluminum core<\/li><\/ul><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">\ud83c\udf1f <strong>2\ufe0f\u20e3 Optimization of copper-aluminum bonding technology<\/strong><\/h2><h3 class=\"wp-block-heading\">\ud83c\udfaf <strong>Improve bonding strength and prevent delamination and peeling<\/strong><\/h3><ul class=\"wp-block-list\"><li>use<strong>Continuous annealing composite process<\/strong>, through physical and chemical bonding at high temperatures, improve the adhesion strength between the copper layer and the aluminum core<\/li>\n\n<li>control<strong>Copper clad aluminum composite speed and pressure<\/strong>, to avoid copper layer peeling and copper exposure caused by incomplete bonding<\/li>\n\n<li>Ruichuang passed<strong>Advanced composite calendering technology<\/strong>, ensuring the copper layer and aluminum core<strong>The degree of integration reaches 100%<\/strong><\/li><\/ul><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">\ud83c\udf1f <strong>3\ufe0f\u20e3 Strengthening testing and quality control<\/strong><\/h2><h3 class=\"wp-block-heading\">\ud83c\udfaf <strong>Multiple inspection processes to eliminate defective products<\/strong><\/h3><ul class=\"wp-block-list\"><li>use<strong>Online ultrasonic testing technology<\/strong>, check whether the copper layer thickness is uniform<\/li>\n\n<li>pass<strong>Optical inspection equipment<\/strong>Identify exposed copper spots and remove unqualified products<\/li>\n\n<li>Implementation<strong>Full quality control<\/strong>, comprehensive testing from raw materials to finished products to ensure the integrity of the copper layer<\/li><\/ul><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">\ud83c\udf1f <strong>4\ufe0f\u20e3 Refinement of tin coating process<\/strong><\/h2><h3 class=\"wp-block-heading\">\ud83c\udfaf <strong>Tin plating protection to further prevent copper exposure<\/strong><\/h3><ul class=\"wp-block-list\"><li>use<strong>High temperature hot dip tinning<\/strong>Process to improve the oxidation resistance and protective performance of the copper layer surface<\/li>\n\n<li>Control the thickness of the tinning layer (usually 0.01-0.02mm) to prevent the copper layer from exposing the aluminum core due to oxidation or wear.<\/li>\n\n<li>High quality tin plating can play a role<strong>Barrier protection<\/strong>, to prevent copper exposure problems<\/li><\/ul><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">\ud83c\udf1f <strong>5\ufe0f\u20e3 Storage and transportation protection<\/strong><\/h2><h3 class=\"wp-block-heading\">\ud83c\udfaf <strong>Store properly to prevent oxidation and damage<\/strong><\/h3><ul class=\"wp-block-list\"><li>use<strong>Vacuum packing or sealed plastic film<\/strong>, to prevent water vapor and oxides from corroding the copper layer<\/li>\n\n<li>Storage environment maintenance<strong>Relative humidity \u226460%<\/strong>, to prevent the copper layer from being oxidized or damaged<\/li><\/ul><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">\ud83d\udd25 <strong>Key points to prevent copper exposure:<\/strong><\/h2><p>\u2705 <strong>Precision calendering:<\/strong> Ensure uniform copper layer thickness to avoid exposed copper in weak spots<br>\u2705 <strong>High-strength bonding:<\/strong> Improve the bonding strength between copper and aluminum to prevent delamination or peeling<br>\u2705 <strong>Strict testing and control:<\/strong> Detect the integrity of the copper layer throughout the process and remove defective products<br>\u2705 <strong>Tin coating protection:<\/strong> Enhanced surface protection to prevent copper layer oxidation and wear<br>\u2705 <strong>Storage Specifications:<\/strong> Sealed packaging, moisture-proof and anti-oxidation, extending product life<\/p>","protected":false},"excerpt":{"rendered":"<p>In the production and use of copper clad aluminum strip (CCA strip), copper exposure is a common and serious problem. Copper exposure can lead to poor welding, reduced conductivity, and even affect the performance of the product.<\/p>","protected":false},"author":1,"featured_media":9053,"comment_status":"closed","ping_status":"closed","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":[19],"tags":[],"class_list":["post-33497","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/33497","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/comments?post=33497"}],"version-history":[{"count":0,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/33497\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/media\/9053"}],"wp:attachment":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/media?parent=33497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/categories?post=33497"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/tags?post=33497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}