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

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How to solve the phenomenon of "goose head bend" of spiral steel pipe

Keywords :How to solve the phenomenon of "goose head bend" of spiral steel pipe        Update : 2022-03-18        View(s) : 1

If the large-diameter spiral steel pipe is processed to a certain length, bending must exist, which is a phenomenon and situation that is often encountered in steel pipes. Large-diameter spiral steel pipe is commonly known as "goose head bend" due to unevenness along the length or such bending...

What are the quality requirements for steel pipeline pickling

What are the quality requirements for steel pipeline pickling

Keywords :What are the quality requirements for steel pipeline pickling        Update : 2022-03-17        View(s) : 978

(1) After steel pipeline pickling, the rust and oil on the inner wall of the pipe are completely removed, and the cleanliness should meet the requirements of relevant standards. (2) Pickling parts shall not be over-pickled. If the pipe is soaked in the pickling solution for too long, the surfa...

Safety protection in construction of anti-corrosion steel pipe

Safety protection in construction of anti-corrosion steel pipe

Keywords :Safety protection in construction of anti-corrosion steel pipe        Update : 2022-03-16        View(s) : 924

1. The spraying process of 3PE anti-corrosion steel pipe At present, most 3pe anti-corrosion steel pipe manufacturers in my country adopt the production process of "epoxy powder spraying, adhesive and polyethylene lateral extrusion, winding roll pressing", because the powder and electrostati...

Basic requirements and production temperature of straight seam steel pipe weld appearance

Basic requirements and production temperature of straight seam steel pipe weld appearance

Keywords :Basic requirements and production temperature of straight seam steel pipe weld appearance        Update : 2022-03-15        View(s) : 987

Basic requirements for the appearance of straight seam steel pipe welds 1. Surface of welded joints: A. No cracks, unfused, pores, slag inclusions, and splashes are allowed. B. The welding seam surface of pipelines with design temperature lower than -29 degrees, stainless steel and alloy st...

Construction preparation and inner wall anticorrosion before welding of large-diameter steel pipe

Construction preparation and inner wall anticorrosion before welding of large-diameter steel pipe

Keywords :Construction preparation and inner wall anticorrosion before welding of large-diameter steel pipe        Update : 2022-03-14        View(s) : 974

Construction preparation before welding of large diameter steel pipe : 1. Organize relevant operators, be familiar with construction drawings and regulations, formulate welding procedures, and compile welding operation instructions. 2. Welders should be trained in corresponding projects and h...

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