{"id":10720,"date":"2024-09-14T14:15:14","date_gmt":"2024-09-14T06:15:14","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=10720"},"modified":"2024-09-14T14:15:14","modified_gmt":"2024-09-14T06:15:14","slug":"ale0056","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/ale0056\/","title":{"rendered":"What issues should be paid attention to in the production process of copper strips for terminals"},"content":{"rendered":"

In the production process of copper strips for terminals, there are many key points that require special attention to ensure the quality, performance and production efficiency of the copper strips. The following are the main issues that need to be paid attention to during the production process:<\/p>\n

1. Raw material quality control<\/strong><\/p>\n

Purity of copper raw materials: The performance of copper strips for terminals depends largely on the purity of copper. Electrolytic copper with a purity of 99.9% or above is usually required to ensure the conductivity and mechanical strength of the copper strip. Therefore, the quality of copper raw materials must be strictly controlled when selecting materials to avoid excessive impurities.<\/p>\n

Initial processing of copper ingots or copper bars: During the smelting and casting process, if the temperature is not properly controlled or impurities are mixed in, the internal structure of the copper material will be uneven, which will affect the subsequent rolling quality.<\/p>\n

2. Stability of rolling process<\/strong><\/p>\n

Temperature control: Whether in hot rolling or cold rolling, accurate temperature control is very important. Too high a temperature may cause surface oxidation or excessive softening of the copper material, affecting the mechanical properties of the material. Too low a temperature may cause uneven rolling, surface cracks or hardening of the material.<\/p>\n

Rolling pressure and pass setting: Too much or too little pressure during cold rolling will affect the thickness uniformity and surface quality of the copper strip. The pass setting and the amount of pressure reduction each time must be precisely controlled to avoid excessive deformation or over-hardening of the material, which will affect the subsequent processing technology.<\/p>\n

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

Annealing temperature and time control: The purpose of annealing is to eliminate the internal stress during the cold rolling process and restore the ductility of the copper material. If the annealing temperature is too high or the time is too long, the copper material may soften excessively and the strength may decrease; if the annealing temperature is too low or the time is insufficient, the internal stress cannot be completely released, the material becomes more brittle, and the subsequent processing is affected.<\/p>\n

Uniform annealing: During the annealing process, the temperature of the copper strip should be evenly distributed to avoid local overheating or uneven cooling, which will lead to inconsistent material properties.<\/p>\n

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