First, in the purchase of welding machine products, to the formal production enterprises or large shopping malls to buy, and to buy a higher market share of the brand famous goods.
Do not covet cheap to small shops to buy, where the quality of the welding machine can not reach the guarantee.
Second, before the purchase can be electrified to check the panel on the operation of the switch, conversion and installation, Power LED lighting, fan is normal, whether the power supply part has abnormal vibration and beep, whether there is odor, appearance whether there is discoloration and other heating phenomenon, in order to ensure the quality of the welding machine, give full play to the performance of the welding machine. Third, the purchase can ask the Distributor to provide product quality inspection report or certification. Because the welding machine product is a national compulsory certification products, so when purchasing must confirm whether the product passed the "3C" certification.
You can also check online.
Iv. when purchasing, check whether the nameplate on the product has the name of the manufacturer, production address, specification model, welding current adjustment range, load continuity rate and input voltage current and other content, and then according to the work needs to determine their own to buy the welding machine. Five, the purchase must check whether the product has grounding screws, grounding screw connection should be no paint grounding good.
Whether the movement is clean and insulated is damaged to ensure safe use and can be detected if necessary. Six, if you want to buy gas protection welding machine, before the purchase also check whether the accessories are complete, wire feeder whether there is oil, rotation is smooth, whether the connection cable matches the appearance of insulation is damaged, in order to ensure the stability of the arc.
