1.the method of grinding the welding head When the welding head is not strong or the wire is brought up, the first should be to grind the welding head, not to increase the parameters. When grinding the welding head, be careful not to use too much force to grind, only need to use a grinding disc or W5 Use fine sandpaper to lightly polish the bottom of the welding head with one or two strokes. 2.Do not loosen the welding head frequently There is insulating glue in the middle of the welding head and then loosening it will affect the contact position of the welding heads on both sides, causing the welding effect to be very bad. Therefore, it is strongly recommended that the welding head is installed and used until the welding head can not be used before taking it out. Do not frequently disassemble and assemble the welding head in the middle. 3.The clamping part of the welding head clamp should be clean Because the welding uses a large current, the reason that a large parameter is often required is that the center of the welding head clamped by the welding head clamp is very dirty, which seriously affects the flow of current. Therefore, it is recommended to clean the area once a month.

Electrode cap is an electrode for spot welding head welding, mainly used in the welding industry of resistance spot welding equipment, such as fixed spot welding machine, hanging spot welding head and robotic spot welding machine, etc., due to the sleeve it is above the electrode connecting rod, so it is called the electrode cap. Under normal circumstances, the electrode cap is made of chromium zirconium copper, and some of it is made of diffused copper. After many times of welding, the worn parts need to be repaired and replaced, which is a direct consumable for welding. In the process of processing , the most used raw material for the production of electrode caps is chromium zirconium copper. The chromium and hair added to pure copper will increase the surface and temperature of the coating cap more effectively, and the conductivity is better. Electrode caps with diffused copper are mainly used for welding of galvanized sheets. Chromium will react with the zinc in the galvanized sheets to a certain extent, which can generate substances similar to copper, which has a great impact on the quality of welding. This problem can be solved by dispersing copper. There are two ways to inspect the electrode cap, one is a destructive inspection method, and the other is the opposite, which is a non-damage inspection. Mainly it is to test the mechanical properties of the electrode cap master batch and welding materials.

The main difference between spot welding head and welding head is: Spot welding is actually a kind of electric welding. The object to be welded is dissolved on another object to be welded in contact with the object to be welded by the instant high temperature of the current, and then welded together. The electric soldering iron is a hand-soldering tool, and the soldering iron tip is heated to a temperature above 300℃ to be able to perform soldering well. When selecting spot welding heads, you can also choose from these aspects: 1.Select the spot welding head data and spot welding head type mainly based on the welding wire data and the melting point of the pad data. 2.According to the requirements of the soldering joints, select the contact area of the discharge part of the spot welding head with the weldment. Large welding wires require a large contact area. 3.Select the shape of the discharge part according to the welding wire data and welding data. 4.Set the shape of the current collecting part of the welding head according to the principle of better discharge.