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· Particularity of carbon steel cap
· The butt is a pair of slip on flanges
· In the production of rolling weld neck flange
· Hebei Shengtian Group supply blind flange
· Shengtian Group is a factory of produce Pipe Tee
· How to distinguish the forged flange and casing flanges
· ERW Steel Pipe plant in the production of steel pipe process
· seamless steel pipe can be used for water pipe

 

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Introduction of stainless steel cap
Source :本站   Time:8/3/2017 9:48:10 PM   hit:

  Large Size 36" strstainless Steel Cap are required to allow only radial and circumferential direction when splicing. Larger caps may later cancel this request. The distance between splicing should be greater than 3δ and not less than 100mm (the weld heat affected zone is a high stress zone and the chemical composition in this area will be burned, so to avoid the high stress zone, the area is related to the thickness . According to practical experience, the stress attenuation length is greater than 3δ, and not less than 100mm). But the refrigeration equipment is difficult to achieve this requirement, has its particularity. After splicing the forming of the head, splicing weld should be 100% ray or ultrasonic testing, qualified level with the equipment shell to go. The final formation of the weld detection level, the proportion of the same with the equipment shell, a high waste.

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