Many people have false welding during the welding process using the spot welder, but they cannot find a good solution. In fact, there are many reasons for the false welding. here are the introduce:

1. Stable power supply voltage: During the production process, the voltage of the power grid is unstable, and the high and the low determine the current size, resulting in false welding.

2. Dirt on the electrode surface: During the long-term welding of a large number of workpieces, a thick oxide layer will form on the surface of the electrode tip, which directly affects the conductivity and causes false welding and false welding. At this time, the electrode should be trimmed and removed. Surface oxide layer to achieve the ideal welding effect.

3. Setting of welding parameters: cylinder pressure, welding time, and current directly determine the welding quality. Only when these groups of parameters are adjusted to the best conditions can high-quality products be welded. The specific parameter settings are determined by the material, such as aluminum alloy plate, stainless steel plate, galvanized plate, nut and so on.

There is a saying that we are all familiar with, called a good horse with a good saddle. The electrode is a saddle for the automatic spot welding machine, so in addition to choosing a good spot welding machine, we must also pay attention to choosing the appropriate electrode material, so that the spot welding machine can perform better and have a longer service life. 

The electrode must transmit current, pressure and heat during the use of the automatic spot welding machine. According to this feature, our basic requirements for electrode materials are as follows:

1. High strength and hardness at high temperature, good resistance to deformation and wear;

2. High electrical conductivity and thermal conductivity, low self-resistance heating, can quickly eliminate the heat from the welding zone, extend the life of the electrode, and improve the heating state of the surface of the weldment of the automatic spot welding machine;

3. The tendency to form an alloy with the weldment metal at high temperature is small, the physical properties are stable, and it is not easy to bond.

   One thing to note is that not all electrode materials for spot welding machines have to meet the above-mentioned requirements well, and appropriate electrode materials should be selected according to their own welding process and welding material characteristics.

For example, welding high-temperature alloys requires the use of electrode materials with high hardness at high temperatures, but their electrical conductivity and thermal conductivity are often poor, and attention must be paid to cooling during welding. When welding aluminum and aluminum alloy metals with high electrical conductivity, electrode materials with low electrical conductivity, such as copper, cadmium copper, etc., should be selected, but they have high hardness at high temperatures and are easy to adhere to weldment metal products. In addition, the shape of the electrode end face is also very important, and the automatic spot welding machine electrode with different end faces should be designed according to different materials.

ACEY NEW ENERGY provides single side spot welding machine and double sides spot welding machine, gantry spot welder etc.