{"id":10812,"date":"2024-10-11T16:52:15","date_gmt":"2024-10-11T08:52:15","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=10812"},"modified":"2024-10-11T16:52:15","modified_gmt":"2024-10-11T08:52:15","slug":"ele0027","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/ele0027\/","title":{"rendered":"Photovoltaic welding ribbon production process How to produce photovoltaic welding ribbon"},"content":{"rendered":"

Photovoltaic welding ribbon<\/a>The production process needs to be strictly controlled to ensure that the quality of the final product meetsPhotovoltaic modules<\/a>The following is the general production process of photovoltaic welding ribbon:<\/p>\n

1. Preparation of raw materials for copper base strip<\/strong><\/p>\n

Choose copper strip: The core material of the welding strip is highly conductive copper, usually electrolytic copper or high-quality oxygen-free copper.<\/p>\n

Preliminary cutting of thickness and width: According to the design requirements, cut out the copper strip of corresponding thickness and width.<\/p>\n

2. Cleaning<\/strong><\/p>\n

Function: Before tin plating, the copper base strip needs to be cleaned to remove the oxide layer, oil stains and impurities on the surface to ensure the adhesion of the subsequent plating.<\/p>\n

Method: Chemical cleaning or electrolytic cleaning is usually used to remove surface oxides to ensure that the surface of the copper strip is smooth and pollution-free.<\/p>\n

3. Annealing<\/strong><\/p>\n

Function: The annealing process can increase the softness of the copper strip, making it less likely to break during subsequent processing and use, while reducing the stress during welding.<\/p>\n

Temperature control: The copper strip needs to be heated under high temperature conditions and then gradually cooled to make the copper strip reach the ideal physical state.<\/p>\n

4. Tinning process<\/strong><\/p>\n

Function: The surface of the copper strip is tinned to improve welding performance and increase its corrosion resistance and conductivity.<\/p>\n

method:<\/p>\n

Hot-dip tinning: The copper strip passes through a molten tin bath so that the tin layer evenly covers the surface of the copper strip.<\/p>\n

Electroplating tin: Tin is evenly deposited on the surface of copper strip through electrolytic reaction.<\/p>\n

Tin plating thickness control: According to the requirements of different photovoltaic modules, the thickness of the tin plating layer needs to be precisely controlled to ensure conductivity and welding quality.<\/p>\n

5. Stretching and shaping<\/strong><\/p>\n

Function: After tinning, the copper strip needs to go through a stretching and shaping process to reach the final width and thickness specifications, while adjusting the straightness of the copper strip.<\/p>\n

Process requirements: During the stretching process, the copper strip should be prevented from deformation or breakage, and the surface of the copper strip should be kept smooth without scratches or dents.<\/p>\n

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