必威彩票平台

Location:HOME > NEWS > Production process and process of welded steel pipe

Production process and process of welded steel pipe

2020-10-12 14:19:17   COMMENT:0 HITS:
  Longitudinal welded steel pipe production process is simple, high production efficiency, low cost, rapid development. Generally, the strength of spiral welded steel pipe is higher than that of longitudinal welded pipe. It can be used to produce welded pipe with larger diameter by using narrow blank, and welded steel pipe with different diameter can be produced with blank of same width. However, compared with the straight seam pipe of the same length, the weld length increases by 30 ~ 100%, and the production speed is lower.

  Large diameter or thick welded steel pipe is usually made of steel billet directly, while thin-walled welded steel pipe with small diameter only needs to be directly welded by steel strip. After simple polishing, wire drawing is used.

必威彩票平台  Process flow of welded steel pipe: raw material uncoiling - leveling - end shearing and welding - looper - forming - Welding - removal of internal and external welding beads - pre correction - induction heat treatment - sizing and straightening - eddy current testing - cutting - hydraulic inspection - Pickling - final inspection - Packaging - delivery.

previous_pageShort term seamless steel pipe decline will continue
next_pageAnalysis of domestic oil pipe market

<ALL>
辽宁福彩网 鑫乐博彩票平台 河北福彩网 即发彩票注册 六分彩票官网 乐透乐彩票注册 彩宏彩票网址 状元彩票平台