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HF welder commissiong process for ERW steel tube mill

Nov. 07, 2019
  1. Horizontal shaft should be level,vertical shaft should be straight; Roller position is stable,slider flexible but not swing, and smooth to adjust.

  2. Position of inductor (1 ~ 3 coils ):

  3. Distance from fore-end to squeeze roller center line is 1~1.5 times pipe diameter;inner diameter is 1.2~1.5 times pipe’s outer diameter.

  4. Ferrite rods (impedor)’s position:fore-end line up with the squeezing roller center line,cross section is bigger than 70% inner diameter of tubes, minimum length is longer than the length that squeezing roller diameter plus inductor length.

  5. V opening angle: for carbon steel material , it should be 30o~40o; For stainless steel anonferrous metal , it should be 50o~80o.


HF welder commissiong process for ERW steel tube mill

Methods to increase welding speed : 

HF welder commissiong process for ERW steel tube mill

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