The main raw materials of pv ribbon are copper, tin and other non-ferrous metals. pv ribbon requires copper-based materials mainly TU1 oxygen-free copper wire and TU2 copper, requiring copper content ≥ 99.99%, TU1 oxygen-free copper wire is a very mature product.
There are many domestic manufacturers, prices are also more transparent, the supply is more than adequate, procurement is relatively easy, TU1 oxygen-free copper wire supplier’s bargaining power is not strong. According to the China Nonferrous Metal Processing Industry Association, China is the world’s largest producer of copper processing, although compared with companies in Europe and the United States and other regions China’s copper processing production enterprises are generally smaller.
Solar photovoltaic production equipment:
With the growth of photovoltaic module production brings a broad prospect also includes the production of pv ribbon using equipment. At present, the production process of pv ribbon mainly has two ways, one is through the slitting process to slit the wide flat copper strip into the required width, after annealing treatment for tin plating; the other is the use of calendering equipment to calendering annealing and tin plating of copper wire. Although the use of slitting annealing process for pv ribbon processing cost is higher, the loss is larger, the efficiency is also lower a section, but due to the use of calendering annealing machine in the industry after the initial development of its yield strength can not reach the use of pv ribbon components standards and other reasons, but also pv ribbon manufacturers more widely used.
However, with the technology update of calendering equipment manufacturers, a new generation of calendering machine has been integrated with calendering and annealing, and the pv ribbon products completed using this process can fully meet the requirements of the use of modules, has been accepted and used by most manufacturers. Considering the increasing production capacity of photovoltaic modules, I believe that to a certain extent, it will also bring good development prospects to equipment manufacturers.