Possible causes of arc instability

①The size of the conductive nozzle hole is not suitable

② conductive nozzle wear

③ The welding wire is not stable

④ Network voltage fluctuation

⑤ The distance between the conducting nozzle and the workpiece is too large

⑥ The welding current is too low

⑦ The ground is not solid

⑧ Welding wire diameter is not suitable

Elimination method

① A conductive nozzle matching the diameter of the welding wire should be used

② The hole in the conducting mouth may become larger, and the conduction is poor

③ The wire winding is too messy, the wire circling is stable, the wire feeding wheel size is appropriate, the pressure roller is too small, the curvature of the guide tube may be too small

④ The primary side voltage should not change too much

⑤ The distance should be 10 to 15 times the diameter of the wire

⑥ Use a current appropriate to the diameter of the wire

⑦ It should be grounded reliably (due to base metal rust, paint and grease, the contact is not good)

⑧ According to the required drop transition process to select the appropriate diameter of the wire.

Hazards of electric arc    

 ①Arc light is usually used in electric welding. The content of ultraviolet light in arc light is high, which will affect the cornea. Therefore, you should wear protective goggles when doing electric welding

  ②To the skin is damaged have rough, desquamate, etc., secondly have certain effect on the germ cells

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