Processing Techniques of Large-caliber LSAW Steel Pipe

Processing techniques of large-caliber LSAW steel pipe:
① Thread processing steel wire head Wuxi large diameter pipe, tooth shape, pitch and so it is necessary to link up with the sleeve-shaped teeth, pitch together, and by supporting the gauge view qualified.
② When processing steel thread should be used in water-soluble cutting fluid lubrication; when the temperature is below 0 ℃, should be incorporated into the 15% -20% of large diameter pipe Wuxi sodium nitrite, do not use oil lubrication fluid or without lubricating fluid threading.
③ Each operator should view the appearance of quality steel wire head and make the operator symbol.
④ Self-qualified by the head of steel wire, each standard response processing capacity of large diameter carbon steel pipe, Jiangsu random sampling of 10%, and not less than 10, if a failure that the batch processing of the full view, he failed wire head should be re-processed after passing through the inspection can use it again.
⑤ Silk has been the identification of eligible head wear should be preserved to maintain the cap, according to the standard classification of regular stand-by.