Hot-rolled and normalized steel in low-alloy high-strength structural steel and alloy structural steel species with a low total content of alloying elements, and the mass fraction of carbon is generally less than 0.25%. Therefore, on the whole, the weldability is better. The general strength level i

For manual arc welding "single-sided welding double-sided forming" process according to the method of operation, can be divided into continuous welding method and intermittent arc extinguishing welding method.In low carbon steel and low alloy steel welding the first layer almost always use intermitt

With the development of industry, there are many different types of metal materials that have emerged. The common ones are plated steel sheets, stainless steel sheets, aluminum alloys, copper alloys and other materials. When spot welding machine is used to weld these corresponding metal materials, d

1. Welders must wear welding masks to protect their eyes when working

The sticking electrode is the adhesion phenomenon between the electrode and the part caused by abnormal welding of the electrode and the part when the welder is spot welding.There are four main reasons for sticking electrodes in the welding process: the working surfaces of the two electrodes are not