{"id":30330,"date":"2024-11-05T15:57:37","date_gmt":"2024-11-05T07:57:37","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=30330"},"modified":"2024-11-05T15:57:37","modified_gmt":"2024-11-05T07:57:37","slug":"clc0033","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/clc0033\/","title":{"rendered":"Causes and preventive measures for discoloration of electroplated copper strips"},"content":{"rendered":"<p>There are several main reasons for the discoloration of electroplated copper strips. Taking corresponding preventive measures for different reasons can effectively avoid the occurrence of discoloration.<\/p>\n<h3>1. <strong>Oxidation<\/strong><\/h3>\n<ul>\n<li><strong>reason<\/strong>: Copper reacts with oxygen in the air to form a layer of copper oxide, causing the surface of the copper strip to change color (such as dark red or green).<\/li>\n<li><strong>Precautions<\/strong>:\n<ul>\n<li><strong>Controlled storage environment<\/strong>: Store the copper tape in a dry, ventilated environment and avoid moisture and high temperature conditions.<\/li>\n<li><strong>Packaging protection<\/strong>: Use moisture-proof and anti-oxidation packaging materials, such as moisture-proof film or anti-rust paper, to prevent the copper tape from contacting with oxygen in the air.<\/li>\n<li><strong>Coating<\/strong>: The surface of the copper strip is treated with an anti-oxidation coating, such as tin plating, silver plating, etc., to form a protective layer to prevent oxidation.<\/li>\n<li><strong>Use desiccant<\/strong>: Add desiccant to the package to maintain a low humidity environment and reduce the possibility of oxidation.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>2. <strong>vulcanization<\/strong><\/h3>\n<ul>\n<li><strong>reason<\/strong>: Copper reacts with sulfides in the air (such as hydrogen sulfide, nitride, etc.) to form black copper sulfide, causing the copper strip to turn black or brown.<\/li>\n<li><strong>Precautions<\/strong>:\n<ul>\n<li><strong>Avoid contact with sulfides<\/strong>: During storage and transportation, avoid contact of copper strips with substances containing sulfides, such as polluted air or chemicals.<\/li>\n<li><strong>Avoid storage in sulfur-containing environments<\/strong>: Avoid storing copper strips in environments with odor or sulfur-containing gases (such as areas with a lot of industrial waste gas).<\/li>\n<li><strong>Coating protection<\/strong>: The surface is tin-plated, silver-plated or nickel-plated to prevent the copper strip from direct contact with sulfides in the air.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<figure id=\"attachment_30331\" aria-describedby=\"caption-attachment-30331\" style=\"width: 450px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-30331 lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/www.ray-tron.com\/wp-content\/uploads\/2024\/11\/2024110515570433.jpg\" alt=\"\" width=\"450\" height=\"300\" \/><figcaption id=\"caption-attachment-30331\" class=\"wp-caption-text\"><noscript><img decoding=\"async\" class=\"size-full wp-image-30331 lazyload\" src=\"https:\/\/www.ray-tron.com\/wp-content\/uploads\/2024\/11\/2024110515570433.jpg\" alt=\"\" width=\"450\" height=\"300\" srcset=\"https:\/\/www.ray-tron.com\/wp-content\/uploads\/2024\/11\/2024110515570433.jpg 450w, https:\/\/www.ray-tron.com\/wp-content\/uploads\/2024\/11\/2024110515570433-300x200.jpg 300w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/><\/noscript> Electroplated copper strip production worker<\/figcaption><\/figure>\n<h3>3. <strong>corrosion<\/strong><\/h3>\n<ul>\n<li><strong>reason<\/strong>\uff1aThe copper strip comes into contact with chemicals such as moisture, chlorine or acidic gases in the air, causing surface corrosion, green rust, spots or other discoloration.<\/li>\n<li><strong>Precautions<\/strong>:\n<ul>\n<li><strong>Control humidity and temperature<\/strong>: Keep the humidity of the storage environment within an appropriate range to avoid accelerated corrosion in a humid environment.<\/li>\n<li><strong>Regular inspection<\/strong>: Check the stored copper strips regularly. If surface corrosion or discoloration is found, timely measures should be taken to avoid the problem from expanding.<\/li>\n<li><strong>Anti-corrosion coating<\/strong>: Coat the surface of the copper strip with a protective coating (such as tin plating, nickel plating or anti-corrosion paint) to prevent external corrosion sources from contacting the copper strip.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>4. <strong>Over-processing<\/strong><\/h3>\n<ul>\n<li><strong>reason<\/strong>: During the production process, if the copper strip is processed, rolled or annealed improperly, such as at too high a temperature or excessive stretching, color difference may occur on the copper surface.<\/li>\n<li><strong>Precautions<\/strong>:\n<ul>\n<li><strong>Precise control of production processes<\/strong>: Strictly control the temperature, pressure and stretch ratio during the production process to avoid excessive processing.<\/li>\n<li><strong>Avoid annealing at too high a temperature<\/strong>: During the annealing process, keep the temperature stable and control the annealing time to avoid discoloration of the copper strip surface.<\/li>\n<li><strong>Surface treatment<\/strong>: Cleaning and surface treatment are carried out after processing to remove residual impurities or oxides and keep the surface of the copper strip smooth.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>5. <strong>Chemical pollution<\/strong><\/h3>\n<ul>\n<li><strong>reason<\/strong>: During the manufacturing or transportation process, if the copper strip is exposed to an environment containing chemical substances, chemical reactions are likely to occur, causing the surface color to change.<\/li>\n<li><strong>Precautions<\/strong>:\n<ul>\n<li><strong>Clean operating environment<\/strong>: The production and storage processes should be kept clean to avoid chemical contamination.<\/li>\n<li><strong>Avoid contact with chemicals<\/strong>: Copper tape should avoid contact with any acid, alkali, grease or other chemicals.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>6. <strong>Natural Aging<\/strong><\/h3>\n<ul>\n<li><strong>reason<\/strong>: When exposed to air, moisture, light and other environments for a long time, the copper strip may change color on the surface due to natural aging.<\/li>\n<li><strong>Precautions<\/strong>:\n<ul>\n<li><strong>Optimize storage conditions<\/strong>: Make sure the copper tape is stored in an environment with suitable temperature and humidity and no direct sunlight.<\/li>\n<li><strong>Use a protective cover or bag<\/strong>: Use protective covers, bags or anti-oxidation packaging during storage to reduce the impact of external environmental factors.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<p>In short, ensuring environmental control during the production, storage and transportation of electroplated copper strips, choosing appropriate surface treatment technology, and regularly inspecting and maintaining the copper strips are key measures to prevent discoloration.<\/p>","protected":false},"excerpt":{"rendered":"<p>There are several main reasons for the discoloration of electroplated copper strips. According to different reasons, taking corresponding preventive measures can effectively avoid the occurrence of discoloration. 1. Oxidation source [\u2026]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","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":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","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":[354],"class_list":["post-30330","post","type-post","status-publish","format-standard","hentry","category-blog","tag-354"],"_links":{"self":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/30330","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=30330"}],"version-history":[{"count":0,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/30330\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/media?parent=30330"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/categories?post=30330"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/tags?post=30330"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}