电阻焊接电极

Resistance welding spot welding, seam welding, projection welding and butt welding all need to use the consumable electrode, although the shape of the electrodes are not identical, however, which is used to weld a transmission welding current and welding stress in the welding process.

一些焊接，电极或焊接模具，夹具或定位装置。电极是电阻焊接焊接部件。

工作条件中的电阻焊接电极差。

In addition to producing the electrode material should have good electrical and thermal conductivity, it should also be able to withstand high temperatures and pressures. The most commonly used resistance welding electrode material is copper and copper alloys, in special welding occasions, also can use the high temperature such as tungsten, molybdenum and alumina powder sintered material as the electrode. In resistance welding, the electrode material and electrode in the shape of a different choice will directly affect the welding quality, production cost and labor productivity.

电阻焊接电极用于生产具有硬度的材料的增加，导电率通常较低。

通常具有高硬度，压缩能力的电极材料;电导率高的材料，导热率高，热也很快。电极材料不柔软以承受大的焊接压力，但其高电导率，可用于高电流焊接的情况下。低软化温度热电极材料不仅是冷却条件的好情况。在电阻焊接，点焊和缝焊电极最差的工作条件下，因此电极材料非常苛刻，两者都需要其电导率，导热性好，也需要热，压力和磨损。

相比之下,电阻凸焊逢ding of the electrode material requirements is much simpler. Resistance welding electrodes is usually part of the clamp, generally do not directly contact with the high temperature zone of weldments, and large contact area with the weldment, the current density is relatively low, the electrode is not required to have a high electrical and thermal conductivity rate, but which in addition to the welding current and welding pieces of transmission forging force, but also to bear a huge clamp pressing force weldment, so that the weld will be strong friction is generated between, Therefore, the electrode must have sufficient strength and hardness in order to reduce the deformation and wear. So to understand the working conditions of the electrode is the key to the correct selection of the electrode material.