{"id":33571,"date":"2025-04-17T16:29:29","date_gmt":"2025-04-17T08:29:29","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=33571"},"modified":"2025-04-17T16:29:36","modified_gmt":"2025-04-17T08:29:36","slug":"what-should-i-pay-attention-to-when-using-copper-clad-aluminum-strip","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/what-should-i-pay-attention-to-when-using-copper-clad-aluminum-strip\/","title":{"rendered":"What should I pay attention to when using copper clad aluminum strip?"},"content":{"rendered":"<p>Copper clad aluminum strip does need to pay special attention to some key points during use, especially in<a href=\"https:\/\/www.ray-tron.com\/en\/pvribbon\/\" data-internallinksmanager029f6b8e52c=\"43\" title=\"Photovoltaic welding ribbon\">Photovoltaic welding ribbon<\/a>In applications with high performance requirements, a little carelessness may affect the conductivity, welding reliability, and even product life.<strong>Matters that must be paid attention to when using copper-clad aluminum strip<\/strong>:<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">1. Storage and transportation precautions<\/h2><h3 class=\"wp-block-heading\">1. <strong>Moisture and oxidation proof<\/strong><\/h3><ul class=\"wp-block-list\"><li>The copper layer is easy to oxidize, so it needs to be stored in sealed packaging with desiccant and the ambient humidity should be less than 60%.<\/li>\n\n<li>Do not expose to air for a long time, especially in a humid or corrosive gas environment.<\/li><\/ul><h3 class=\"wp-block-heading\">2. <strong>Prevent scratches<\/strong><\/h3><ul class=\"wp-block-list\"><li>The copper layer on the surface of copper-clad aluminum strip is relatively soft and easily damaged during transportation, so scratch-proof and shock-proof packaging must be used.<\/li>\n\n<li>Operators should wear dust-free gloves and avoid contact with hard objects.<\/li><\/ul><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">2. Precautions during processing and use<\/h2><h3 class=\"wp-block-heading\">1. <strong>Slitting tension control<\/strong><\/h3><ul class=\"wp-block-list\"><li>Excessive slitting tension can easily lead to delamination of the copper layer and the aluminum base or copper exposure at the edge.<\/li>\n\n<li>It is recommended to use a constant tension control system, especially in the production of small-gauge strips.<\/li><\/ul><h3 class=\"wp-block-heading\">2. <strong>Welding temperature control<\/strong><\/h3><ul class=\"wp-block-list\"><li>The thermal conductivity of copper-clad aluminum welding strip is worse than that of pure copper. The temperature needs to be adjusted properly during welding to prevent local burn-through or loose welding.<\/li><\/ul><h3 class=\"wp-block-heading\">3. <strong>Avoid excessive bending<\/strong><\/h3><ul class=\"wp-block-list\"><li>The bending radius should not be too small, as excessive bending will cause the copper layer to crack or fall off.<\/li>\n\n<li>The recommended bending radius is \u2265 10D (10 times the strip thickness) to ensure service life.<\/li><\/ul><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">3. Electrical performance requirements and precautions<\/h2><h3 class=\"wp-block-heading\">1. <strong>Conductivity confirmation<\/strong><\/h3><ul class=\"wp-block-list\"><li>Before use, you should confirm whether the copper layer thickness meets the design requirements (generally \u2265 5\u03bcm) to ensure that the resistor is qualified.<\/li>\n\n<li>Uneven or too thin copper layer will affect the current carrying capacity and reduce<a href=\"https:\/\/www.ray-tron.com\/en\/\" data-internallinksmanager029f6b8e52c=\"14\" title=\"Photovoltaic modules\">Photovoltaic modules<\/a>efficiency.<\/li><\/ul><h3 class=\"wp-block-heading\">2. <strong>Connection reliability<\/strong><\/h3><ul class=\"wp-block-list\"><li>The soldering tape should have good solderability and the solder joint strength should not be affected by poor copper-aluminum bonding.<\/li>\n\n<li>It is recommended to do tensile test and welding test, especially when using in batches for the first time.<\/li><\/ul><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">4. Supporting Process and Compatibility Considerations<\/h2><h3 class=\"wp-block-heading\">1. <strong>Matching welding process<\/strong><\/h3><ul class=\"wp-block-list\"><li>Copper-clad aluminum is slightly different from pure copper, and parameters such as solder paste, welding temperature, and time need to be adjusted.<\/li><\/ul><h3 class=\"wp-block-heading\">2. <strong>Matching with device<\/strong><\/h3><ul class=\"wp-block-list\"><li>Ensure that welding heads, pressing rollers, cutting equipment, etc. do not damage the copper layer, especially in small-gauge wires.<\/li><\/ul><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">5. Long-term stability verification<\/h2><ul class=\"wp-block-list\"><li>If this is your first selection, we recommend the following evaluation:<ul class=\"wp-block-list\"><li>Long-term current withstand test<\/li>\n\n<li>High temperature aging test<\/li>\n\n<li>Corrosion testing in salt spray\/humid heat environment<\/li><\/ul><\/li><\/ul><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h3 class=\"wp-block-heading\">\u2705 Summary:<\/h3><blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>Although copper-clad aluminum strip has cost advantages, its use conditions must be strictly controlled to ensure that its weldability, conductivity and long-term stability meet the requirements before it can truly play its value as a substitute for copper strip.<\/strong><\/p><\/blockquote>","protected":false},"excerpt":{"rendered":"<p>Copper clad aluminum strips do need to pay special attention to some key points during use, especially in applications with high performance requirements such as photovoltaic welding strips. A little carelessness may affect the conductivity [\u2026]<\/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-33571","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\/33571","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=33571"}],"version-history":[{"count":0,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/33571\/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=33571"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/categories?post=33571"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/tags?post=33571"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}