Knowledge

15Oct, 2024

What is the value of hot-dip galvanized steel pipes?
Compared to steel pipes that have not undergone hot-dip galvanizing, the service life of hot-dip galvanized steel pipes is extended by an average of 10 to 15 times. This essentiall
15Oct, 2024

Why is hot-dip galvanizing applied to the surfaces of steel products?
Steel is prone to rusting and even complete damage when exposed to air, water, or soil. Approximately one-tenth of the total steel production is lost annually due to corrosion. The
15Oct, 2024

What is the principle of hot-dip galvanizing?
When steel components are immersed in molten zinc, a solid solution of zinc and iron first forms at the interface, which is the process of zinc dissolving and diffusing into the ir
15Oct, 2024

What is hot-dip galvanizing?
Hot-dip galvanizing, also known as hot-dip zinc coating, involves immersing steel components that have undergone pretreatment such as rust removal into molten zinc. Through physica
14Oct, 2024

The main reason for demagnetization of spiral welded pipes - eliminating pote...
In certain special environments, such as areas with strong magnetic fields or situations requiring high-precision measurements, residual magnetism may pose potential safety hazards
14Oct, 2024

The main reason for demagnetization of spiral welded pipes - meeting usage re...
Spiral welded steel pipes are widely used in many industrial fields, such as oil and natural gas transmission pipelines, structural supports for buildings, and more. In these appli
14Oct, 2024

The main reason for demagnetization of spiral welded pipes - ensuring detecti...
Residual magnetism also affects the inspection of spiral welded steel pipes. For instance, in X-ray industrial television imaging systems, residual magnetism can deflect the direct
14Oct, 2024

The main reason for demagnetization of spiral welded pipes - enhancing weldin...
During the production process of spiral welded steel pipes, especially during the welding process, the use of direct current welding results in the generation of a strong magnetic
14Oct, 2024

Why is demagnetization required for spiral welded pipes? What is demagnetizat...
Demagnetization, as its name implies, involves eliminating or reducing the magnetism of an object. The basic principle involves altering the arrangement of internal magnetic domain
12Oct, 2024

What are the execution standards for ultrasonic testing?
ISO 10893-11 Automated ultrasonic testing of longitudinal and/or transverse imperfections in welded steel tube seams ASTM E164 Standard Practice for Contact Ultrasonic Inspection o
12Oct, 2024

Why is ultrasonic testing conducted?
The principle of ultrasonic flaw detection is that when ultrasonic waves propagate through the material being tested, changes in the acoustic properties and internal structure of t
12Oct, 2024

What are the execution standards for X-ray inspection?
ISO 10893-6 Non-destructive testing of steel tubes - Part 6: Radiographic inspection of welded steel tube seams for flaw detection ISO 10893-7 Non-destructive testing of steel tube

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