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Forged flange production process

Forged flange production process

Keywords :Forged flange production process        Update : 2022-05-26        View(s) : 61

Forged flange production process The forging process generally consists of the following procedures, namely, selecting high-quality steel billets, blanking, heating, forming, and cooling after forging. Forging process methods include free forging, die forging, and fetal membrane forg...

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) : 66

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...

Large diameter welded steel pipe production process

Large diameter welded steel pipe production process

Keywords :Large diameter welded steel pipe production process        Update : 2022-05-24        View(s) : 79

1: Physical and chemical inspection of raw materials such as strip coils, welding wires, and fluxes. 2: The head and tail of the strip are butted, using single-wire or double-wire submerged arc welding, and automatic submerged arc welding is used after rolling into a steel pipe . 2: Before fo...

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) : 60

(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 ...

How should the spiral steel pipe be anti-corrosion in the water supply pipe

How should the spiral steel pipe be anti-corrosion in the water supply pipe

Keywords :How should the spiral steel pipe be anti-corrosion in the water supply pipe        Update : 2022-05-20        View(s) : 62

Usually, we use epoxy coal tar paint. If the requirements are high, 3 oil and 2 cloth can be used. 3 coats of paint and 2 coats of fiberglass cloth, staggered construction. If it is required, the primer and topcoat of epoxy coal tar can be used directly, and each construction is twice. Simple and co...

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