(1) hand arc welding equipment. Hand welding equipment used method is simple, easy and flexible, adaptable, but high demands on welder operation. Hand arc welding is suitable for carbon steel, low alloy steel, stainless steel, copper and copper alloy welding of metal materials. (2) the submerged arc welding (SAW) devices composed of welding power source, submerged arc welding machine and ancillary equipment. The power supply can use ac, dc or ac/dc. Submerged arc welding machine is divided into two categories: automatic welding machine and semi-automatic welding machine. Semi-automatic submerged arc welding machine. (2) automatic submerged arc welding machine. (3) CO2 gas shielded welding equipment is mainly composed of welding power supply, gas supply system, wire feeding mechanism and welding torch, etc. (4) MIG inert gas protection welding equipment including welding gun, welding power source and control devices, gas and water supply system. (5) the plasma arc welding equipment is mainly including welding power source, control system, welding torch, gas path system and water system. (6) ultrasonic welding equipment mainly include ultrasonic plastic welding machine and ultrasonic metal welding machine.
