Solar Cells<\/a>The breakage rate of the soldering iron is closely related to the long-term reliability of photovoltaic modules, and it is one of the important materials for photovoltaic module welding. The soldering iron ribbon is divided into interconnection strips and busbars according to different uses.<\/p>\nThe interconnection strip is a tinned solder strip used to connect photovoltaic cells and collect and transmit the current of photovoltaic cells. It is welded to the main grid of the cell. The busbar is used to connect the photovoltaic cell string and the junction box. It is a tinned solder strip used to transmit the current of the photovoltaic cell string without directly contacting the cell.<\/p>\n
The photovoltaic welding tape industry is in the middle of the entire photovoltaic industry chain, and its market demand depends largely on the construction of photovoltaic power stations one by one in the downstream photovoltaic application system of the photovoltaic industry. The photovoltaic welding tape industry is closely related to the development of the downstream photovoltaic battery industry, and the downstream photovoltaic battery industry has a great traction and driving effect on the development of the photovoltaic welding tape industry. The driving force of photovoltaic policies and the expansion of the production capacity of various component companies are important links in determining the welding tape industry, which fundamentally determines the future development trend of the welding tape industry.<\/p>\n
<\/noscript><\/p>\nUpstream and downstream situation of welding strip industry<\/p>\n
(1) Materials: The main raw materials for photovoltaic welding strips are copper, tin and other non-ferrous metals. The copper-based materials required for photovoltaic welding strips are mainly TU1 oxygen-free copper wire and TU2 copper, and the copper content is required to be \u226599.99%. TU1 oxygen-free copper wire is a very mature product. There are many domestic manufacturers, the price is relatively transparent, the supply is relatively sufficient, and it is relatively easy to purchase. The bargaining power of TU1 oxygen-free copper wire suppliers is not strong. According to the China Nonferrous Metals Processing Industry Association, my country is the world's largest copper processing producer, although my country's copper processing production enterprises are generally smaller than those in Europe and the United States.<\/p>\n
(2) Equipment: With the growth of photovoltaic module production, the broad prospects also include the production and use of photovoltaic welding strips. At present, there are two main production processes for photovoltaic welding strips. One is to cut the wide and flat copper strips into the required width through the slitting process, and then tinnize them after annealing; the other is to use calendering equipment to calender anneal and tinnize the copper wire. Although the cost of using the slitting annealing process for welding strip processing is high, the loss is large, and the efficiency is low, it is also widely used by welding strip manufacturers because the yield strength of the calender after annealing does not meet the use standards of welding strip components in the early stage of the industry. However, with the technical update of calendering equipment manufacturers, the new generation of calenders have integrated calendering and annealing, and the welding strip products completed by this process can fully meet the requirements of the module, and have been accepted and used by most manufacturers. Considering the continuous improvement of the production capacity of photovoltaic modules, it is believed that it will also bring good development prospects to equipment manufacturers to a certain extent.<\/p>","protected":false},"excerpt":{"rendered":"
PV photovoltaic welding ribbon, also known as tin-coated copper ribbon, is a copper ribbon of a certain specification with a uniform thickness of tin-based solder coated on the surface. Its main function is to connect the cells and the junction box and conduct electricity in the production of photovoltaic modules. Its performance index is closely related to the current collection efficiency of solar photovoltaic modules, the breakage rate of solar cells and the long-term reliability of photovoltaic modules. It is one of the important materials for photovoltaic module welding.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","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":[253,227],"class_list":["post-5583","post","type-post","status-publish","format-standard","hentry","category-blog","tag-blog","tag-guangfuhandai"],"_links":{"self":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/5583","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=5583"}],"version-history":[{"count":0,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/5583\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/media?parent=5583"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/categories?post=5583"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/tags?post=5583"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}