What are the components of carbon dioxide gas shielded welding machine? What are their respective roles?

The main components of CO2 gas shielded welding equipment are: welding power supply, wire feeder, welding torch, gas path system (including gas cylinder, heater, dryer, pressure reducer, flowmeter, gas valve, hose, etc. ) and control system.

Functions of each part:

1, the role of welding power supply: provide welding current and voltage.

2. The function of the wire feeder is to send the welding wire in the welding wire tray to the welding gun outlet.

3. The function of welding torch is to output CO2 gas and conductive welding wire.

4. The function of the gas supply system is to convert the CO2 liquid in the CO2 liquid cylinder into gas, enter the pipeline after depressurization, and spray it from the nozzle at a certain flow rate.

5, control system functions:

(1) controls the start and stop of welding.

(2) Adjust the arc voltage and welding current.

(3) Control and adjust arc-extinguishing current and arc-extinguishing voltage.

(4) Before welding, check the gas delivery and welding wire feed.