{"id":33654,"date":"2025-05-27T17:01:27","date_gmt":"2025-05-27T09:01:27","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=33654"},"modified":"2025-05-28T17:44:52","modified_gmt":"2025-05-28T09:44:52","slug":"202505271-2","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/202505271-2\/","title":{"rendered":"How to choose a reliable small-size composite copper strip"},"content":{"rendered":"<p>When choosing composite copper strip, especially for<a href=\"https:\/\/www.ray-tron.com\/en\/pvribbon\/\" data-internallinksmanager029f6b8e52c=\"43\" title=\"Photovoltaic welding ribbon\">Photovoltaic welding ribbon<\/a>, electronics, electrical, communications, home appliances and other high-performance scenarios, the following key points are crucial:<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 1. Look at the thickness of the copper layer<\/h3>\n\n\n\n<p>Too thin a copper layer can lead to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Insufficient electrical conductivity<\/li>\n\n\n\n<li>Welding is difficult<\/li>\n\n\n\n<li>Easy to expose aluminum and oxidize<\/li>\n<\/ul>\n\n\n\n<p><strong>Recommended options:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Products with copper layer thickness \u2265 0.05mm (or copper layer ratio \u2265 20%);<\/li>\n\n\n\n<li>The surface copper layer should<strong>Continuous, uniform, no bubbles, no shedding<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 2. Look at the copper-aluminum bonding process<\/h3>\n\n\n\n<p>If the bond is not firm, delamination and breakage may occur during use.<\/p>\n\n\n\n<p><strong>Preferred technology:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hot rolling composite or explosive rolling process;<\/li>\n\n\n\n<li>use<strong>Vacuum protection environment<\/strong>or<strong>Continuous compounding technology<\/strong>, ensuring that the copper-aluminum interface is metallurgically bonded tightly and the shear force is higher than the industry standard.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 3. Look at the conductive properties<\/h3>\n\n\n\n<p>Electrical conductivity directly affects product heat generation and efficiency.<\/p>\n\n\n\n<p><strong>Evaluation Metrics:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Electrical conductivity\uff1e65% IACS<\/strong>(The higher the better);<\/li>\n\n\n\n<li>Low surface resistivity and good stability;<\/li>\n\n\n\n<li>The measured resistance should meet the customer&#039;s design requirements.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 4. Look at the size accuracy<\/h3>\n\n\n\n<p>Small-sized copper-clad aluminum wires are often used in automation equipment, and dimensional tolerance control is very critical.<\/p>\n\n\n\n<p><strong>Recommended standards:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The thickness tolerance is controlled within \u00b10.005mm;<\/li>\n\n\n\n<li>Width tolerance within \u00b10.02mm;<\/li>\n\n\n\n<li>No burrs, no warping, neat edges and corners.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 5. Check solderability and plating performance<\/h3>\n\n\n\n<p>When used in scenarios such as photovoltaic welding ribbons and BMS, good welding capabilities must be ensured.<\/p>\n\n\n\n<p><strong>Preferred product features:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The copper layer can be directly tinned or pre-tinned;<\/li>\n\n\n\n<li>Good compatibility with flux;<\/li>\n\n\n\n<li>The welding temperature is stable, and there is no copper layer falling off or bulging.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 6. Look at the supplier&#039;s strength<\/h3>\n\n\n\n<p>High-quality products rely on stable equipment and production management.<\/p>\n\n\n\n<p><strong>Recommended options:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Manufacturers with professional flat wire\/composite metal production background;<\/li>\n\n\n\n<li>have<strong>Small batch stable supply capability<\/strong>;<\/li>\n\n\n\n<li>There are third-party certifications, such as ISO, RoHS, REACH, etc.;<\/li>\n\n\n\n<li>Can provide technical support, fast proofing, customized specification services.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u2b50 Recommended brand: Ruichuang copper clad aluminum strip<\/h3>\n\n\n\n<p><a href=\"https:\/\/www.ray-tron.com\/en\/\" data-internallinksmanager029f6b8e52c=\"19\" title=\"Ruichuang 2\">Raytron<\/a>We focus on small-sized copper-clad aluminum flat wires, which have uniform copper layer bonding, excellent conductivity, stable dimensions, and guaranteed mass production and delivery, and are suitable for high-end photovoltaic, energy storage and electronic markets.<\/p>","protected":false},"excerpt":{"rendered":"<p>When choosing composite copper strips, especially for high-performance scenarios such as photovoltaic welding strips, electronic and electrical, communications, and home appliances, the following key points are crucial: \u2705 1. Look at the copper layer [\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-33654","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\/33654","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=33654"}],"version-history":[{"count":0,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/33654\/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=33654"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/categories?post=33654"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/tags?post=33654"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}