Knowledge

27May, 2024

The method of direct sewing steel pipe treats thermal treatment
First of all, we must carry out a reasonable mold planning. Do not be too different in thickness. The shape must be symmetrical. Regarding the large deformation molds, we must mast
27May, 2024

The pre -welding quality and welding essentials of straight seam steel pipes
The straight seam steel pipe is a steel pipe with a longitudinal parallel of welding seams and steel pipes. It is generally divided into public welding steel pipes, welding thin wa
26May, 2024

Classification of roller molding method of straight seam welded pipes
The roller molding method can be roughly divided into three categories, that is, the stage molding method, natural molding method and standing roller composition method. 1. Period
26May, 2024

Different types of straight steel pipe production
The steel pipe made of stitched welding steel pipes made of hot -rolled steel plates or steel band rolls on the welding equipment is called straight seam welded pipes obtained on t
26May, 2024

The production and three categories of welded pipes
Nowadays, hot -dip galvanized steel pipes are common types of fire management, and they have fully exerted irreplaceable effects in the fire safety industry. Why can't the hot
26May, 2024

The cause of the hot -dip galvanized pipe of the fire
Nowadays, hot -dip galvanized steel pipes are common types of fire management, and they have fully exerted irreplaceable effects in the fire safety industry. Why can't the hot
26May, 2024

How to control the welding quality of galvanized steel pipes
Control from five aspects: people, materials, machines, law, and ring. ① Human factors are the focus of welding control. Therefore, before welding, welders who are skilled and weld
24May, 2024

Briefly describe the weight coefficient of galvanized steel pipe
Let's first get the nominal wall thickness MM2.02.52.83.53.84.04.5 There is also galvanized steel pipe coefficient parameters: C1.0641.0511.0451.0401.0361.0341.0321.028 The fol
24May, 2024

Dalgen plating six elements of galvanized pipes
The processing process of galvanized pipes includes pre -processing, electroplating and post -processing. The impact of electroplating process on the quality of plating is also aff
24May, 2024

Ten points of the heat treatment of galvanized pipes
1. Galvanized pipes and fixtures should remove foreign objects such as oil, residual salt, and paint before thermal treatment; 2. The fixture used in the vacuum furnace for the fir
24May, 2024

Spiral welding steel pipe
The spiral welding steel pipe refers to the steel pipe with a steel tube with a seam with a seam with a steel belt or a steel plate bent to a round, square. Welding steel pipes are
24May, 2024

Common spiral tube cutting method
1. Magnetic automatic cutting machine: In the case of poor steel tube ellipses, the magnetic car is walking along the wall of the tube, and the walking path changes, especially the

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