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Threeway Steel Co., Ltd

E-mail: sales@srtsteelpipe.com

Address: 22nd Floor, Royal Wing Tower, Long Champ International Building, No.9 Xiangfu Road, Changsha, Hunan, China, PC: 410116

Phone:0086-731-8873-9521  

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Causes of trachoma at the welding seam of spiral seam submerged arc welded steel pipe

Causes of trachoma at the welding seam of spiral seam submerged arc welded steel pipe

Keywords :Causes of trachoma at the welding seam of spiral seam submerged arc welded steel pipe        Update : 2022-05-25        View(s) : 732

Spiral steel pipe is made of strip steel passing through a coiling machine, bending in a spiral direction, and then double-sided submerged arc welding by capacitors. In the production process of spiral steel pipe welding, many galvanized channel steel situations such as missing welding and mis...

What is the stress state of the spiral steel pipe during the extrusion process

What is the stress state of the spiral steel pipe during the extrusion process

Keywords :What is the stress state of the spiral steel pipe during the extrusion process        Update : 2022-05-23        View(s) : 738

(1) During the extrusion process, the temperature of the inner lining of the spiral steel pipe increases continuously with the extrusion process. At the end of the extrusion, the temperature of the inner wall of the inner lining near the extrusion die is higher, reaching 631 °C. The temperature ...

What is the difference between fine polishing and rough polishing of stainless steel pipe fittings

What is the difference between fine polishing and rough polishing of stainless steel pipe fittings

Keywords :What is the difference between fine polishing and rough polishing of stainless steel pipe fittings        Update : 2022-05-19        View(s) : 732

What is the difference between fine polishing and rough polishing of stainless steel pipe fittings Rough polishing is the rough grinding and cutting of metal objects. Usually, this automatic polishing machine uses double polishing heads for polishing. The advantages of this...

Changes in Anticorrosion Forms of Plastic-coated Steel Pipes

Changes in Anticorrosion Forms of Plastic-coated Steel Pipes

Keywords :Changes in Anticorrosion Forms of Plastic-coated Steel Pipes        Update : 2022-05-17        View(s) : 669

The anti-corrosion of plastic- coated steel pipes developed from the earliest inner and outer polyethylene to inner and outer epoxy, and later developed to the third generation of inner epoxy and outer polyethylene, and finally upgraded to the fourth generation of anti-corrosion-3PE external anti...

Causes of slag inclusion in the production of anti-corrosion spiral steel pipes

Causes of slag inclusion in the production of anti-corrosion spiral steel pipes

Keywords :Causes of slag inclusion in the production of anti-corrosion spiral steel pipes        Update : 2022-05-13        View(s) : 739

Anti-corrosion spiral steel pipe is made of low-carbon structural steel rolled into tube blanks according to the relative helical angle, and then the pipe seams are welded together, also called spiral steel pipe or spiral welded pipe. Anti-corrosion spiral steel pipe manufacturers will produ...

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