DZ-47触头电阻焊

触头是低压电器的执行元件,其焊接质量直接决定了整个电器的运行可靠性和使用寿命.使用电阻焊的方法对DZ-47电触头进行焊接,分析了焊接电流、焊接时间及电极力对触头剪切力的影响规律,并对焊接界面的组织形态及元素分布进行了研究.结果表明,在合理的工艺条件下,电阻焊焊接触头是可行的.此外,由于焊接过程中电磁力和电气触头结构设计的因素,即使在相同工艺参数下焊接的触头不同方向的界面扩散层厚度和元素扩散量都不相同.

Research on resistance welding of DZ-47 electrical contact

Electrical contact is the execution unit of lowvoltage electrical equipment. The welding quality directly determines the service life and reliability of entire electrical equipment. In this paper, resistance welding was used in the welding of DZ-47 electrical contact. The influence of welding current, welding time and electrode pressure on the shear stress of the contact was analyzed. The welding interface morphology and elemental distribution were also studied. The results show that resistance welding is feasible for electrical contact welding under the appropriate processing parametres. It is additionally found thats in the case of same process parameters the interface diffusion layer thickness and the amount of diffusion of elements are not the same due to the electromagnetic force and the unreasonable design of electrical contact.