Knowledge

17Jun, 2024

Production of hot -rolled seamless steel pipes
Generally, the production process of seamless steel pipes can be divided into two types: cold and hot rolling. Hot -rolled, as the name suggests, the temperature of the rolling par
15Jun, 2024

Steel number identification method of large -diameter spiral tube
Carbon tool steel ① The steel number is "T" to avoid mixing with other steel. ② The number in the steel number indicates the carbon content, which is represented by a few
15Jun, 2024

Analysis of the characteristics of galvanized steel welding
Galvanized steel is generally placed with zinc at low carbon steel, and the galvanized layer is generally 20um thick. The melting point of zinc is 419 ° C, and the boiling poin
15Jun, 2024

Classification of roller forming method of straight seam welded pipe-Establis...
Establishing roller composition method: The deformation of the molding process is restrained by a set of rollers in the vertical direction. It is a forming method that is compatibl
15Jun, 2024

Classification of roller forming method of straight sewing pipe-natural moldi...
Natural molding method: Natural molding method is also called the roller forming method (CFE). The characteristics of this molding method are that in the process of forming, the ro
15Jun, 2024

Classification of roller molding method of straight seam welded pipe -stage m...
Phase forming method: Phase forming method is a longitudinal formation method composed of a series of pair -pair -type rollers. It can also be classified according to the character
14Jun, 2024

The production process of straight seam steel pipes
1. Detective: After the steel plate used to make large -caliber buried arc welding straight seam steel pipes enters the production line, the full board ultrasonic inspection is per
14Jun, 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
05Jun, 2024

Production introduction of thick wall spiral tubes
The spiral steel pipe is to roll the low -carbon carbon structure steel or low alloy structure steel band at the angle of the spiral line (called the forming angle) into a tube bla
14Jun, 2024

Do you know the welding defect detection technology of the spiral pipe?
A more effective method for welding defect detection is to use pulse reflection ultrasound detection technology. Because it is mainly to determine whether there is a defect, the ty
14Jun, 2024

What are the requirements for the surface of the spiral tube to the surface o...
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
13Jun, 2024

Galvanized pipe classification and process knowledge
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

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