Knowledge

29May, 2024

Introduction of the advantages and disadvantages of spiral steel pipes
The spiral steel pipe is a spiral steel pipe made of steel or coils by spiral -shaped tortuous, and actively welded with both sides and welded inner seams and outer seams. For the
29May, 2024

How to improve the service life of spiral steel pipes
In order to improve the life of the pipeline, the production of the spiral steel pipe manufacturers will process it on its surface, which is also a step of production. The most com
29May, 2024

Briefly describe the molding process of straight seam steel pipes
The straight seam steel pipe refers to the steel pipes that their welds are parallel to the length of the steel pipe. Its production process is relatively simple. The strength of t
29May, 2024

What should I pay attention to when the spiral steel pipe needs to be used?
The installation and use of the spiral steel pipe has strict technical requirements. It should be carried out according to the actual situation, and it must also be guaranteed and
28May, 2024

How to prevent straight seam steel pipe fractures
Domestic straight steel pipe manufacturers usually improve their performance by adding alloys to the materials. After cold pulling, stress and annealing must be performed to elimin
28May, 2024

The characteristics and inspection of plastic steel pipes inside and outside
Plastic steel pipes in the inside and outside of water have the following characteristics: First, there are plastic coatings on the inner surface of the inner and outer plastic ste
28May, 2024

Why is the large -diameter tube bending
If the large -diameter spiral steel pipe is processed to a certain length, bending must exist, and it is often encountered in the steel pipe. The large -diameter spiral steel pipe
28May, 2024

Spiral tube requirements for steel pipe surface requirements
Nowadays, many spiral pipe manufacturers have not reached standard regulations on the surface through the production and processing of spiral pipes, but there are still successive
28May, 2024

Production introduction of thick wall spiral tubes
The steel pipe with a ratio of the outer diameter of the steel pipe and the ratio of wall thickness is called thick wall spiral pipe. It is mainly used for petroleum geological dri
27May, 2024

Dalvation steel pipe heating furnace heating oxidation defect and control
Oxidation refers to the role of CO2, H2O, and O2 in the furnace gas during heating. That is, burning), reduce the material rate, and at the same time, the accumulation of iron oxid
27May, 2024

What should I pay attention to when the construction welding of galvanized pi...
Galvanized steel pipes, which have dual advantages such as strong corrosion resistance and low prices, and its utilization rate is also getting higher and higher, but in some cases
27May, 2024

Welding technology used in straight seam welding steel pipes
Welding technology adopted by straight welding steel pipes: The use of small specifications can avoid stress corrosion, thermal cracks and deformation, and the welding welding volu

First 95 96 97 98 99 100 101 Last 98/111