Abstract:

Wuxi copper busbar manufacturers do not recommend using copper for welding, also because many characteristics of copper itself determine that it is not suitable for fusion welding. The editor will explain some characteristics of copper itself.

1. The presence of impurities easily generates low-melting eutectics in the weld seam, and the joint is also prone to hot cracking;

2. Copper has a high melting point and excellent thermal conductivity. During welding, the base metal is difficult to melt, and the filler metal does not easily integrate well with the base metal, which may cause incomplete penetration;

3. Grains grow significantly after welding, reducing the strength and plasticity of the joint;

4. The addition of impurity elements also reduces the conductivity of the joint;

5. Copper has excellent thermal conductivity, and the cooling rate of the weld is relatively fast, so porosity is also one of the main difficulties in copper fusion welding.

6. Copper has a high coefficient of linear expansion and shrinkage, severe deformation after soldering, difficult appearance to form, and high residual force;

Therefore, for Wuxi copper busbar manufacturers—Yixing Xindake New Energy Technology Co., Ltd., using copper for fusion welding will affect energy consumption, process requirements, and weld seams, so it is not recommended. Regarding the prices for copper foil flexible connectors and stamped parts processing, we will provide more suggestions for everyone's consideration. Company website: www.kingdco.com