When the energy storage spot welder is welding, if the cooling water is hot and continues to be cooled with hot cooling water, it will definitely reduce the cooling effect and affect the welding.
The reason why the energy storage spot welder needs to be cooled is because the heat is generated by the long time flow of high current throughout the circuit, including the controller, transformer, copper row, cable, grip bar, electrode, etc. During the heating process, the workpiece also transfers heat to the electrode grade connection section. Continuous overheating of the controller and transformer will affect the service life of the parts or even combustion, overheating of the electrode will affect the service life of the welding head, and the residual heat will also affect the welding effect, usually encountering sticky electrodes, electrode wear too fast, constant current time and sudden increase in energy.
The cooling of the energy storage spot welder is also related to the welding beat. This is of course related to the welding machine structure, load rate, etc. Excluding other influencing factors, the faster the welding beat, the higher the cooling requirements. The influence of the cooling water heating on the welding depends on the overall spot welder construction, welding effect requirements, welding tempo, etc.
It is recommended to replace the cooling water heating with a larger volume and flow rate of the circulating cooling water tank, and if necessary, use an ice and water machine with cooling function for cooling.