Knowledge

13Jun, 2024

What are the precautions when cutting the stitched steel pipe
When cutting straight steel pipe cutting, there are several important precautions that need to be understood and observed to ensure the quality and safety of the cutting. Here are
13Jun, 2024

What are the ways to prevent straight seam steel pipes from broken
Domestic straight welded pipe manufacturers usually improve their performance by adding alloys to materials. After the cold pulse, stress annealing must be performed to eliminate t
13Jun, 2024

Different straight -to -steel pipes of straight steel pipes
1. Bending steel pipes and welds are bent in the same direction Reason: Insufficient treatment of welds is insufficient, there is a thermal stress on the side of the pipeline, and
13Jun, 2024

Different treatment methods of seamless steel pipes
1. Seamless steel pipe mouth polishing: After the cutting is completed, the corner grinding machine should be polished by the plastic layer of the tube. The purpose is to avoid mel
12Jun, 2024

Hot -dip galvanized process and advantages
Hot -dip galvanizing is one of the most effective means to delay the environmental corrosion of steel materials. Compared with other metal protection methods, it is based on the pr
12Jun, 2024

Requirements for the thickness of the zinc layer of the hot -dip galvanized c...
Hot -soaking galvanized is a metallurgical reaction process. From a micro perspective, the hot -dip galvanized process is two dynamic balance: thermal balance and zinc iron exchang
12Jun, 2024

What are the precautions for using straight seam steel pipes
The straight seam steel pipe is a general name. The tubes that are welded in straight welding in high -frequency welding equipment are called straight steel pipes. Among them, acco
12Jun, 2024

The advantages and disadvantages of spiral tubes and main use items
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
12Jun, 2024

Classification and application of hot -dip galvanized spiral tube
The characteristics of galvanized spiral pipes: The production process of straight seam welding pipes is simple, production efficiency is high, low cost, and rapid development. The
11Jun, 2024

Testing method of small -diameter spiral steel pipe
The spiral steel pipe after production needs to be checked. The appearance check of the welding joint is a simple program, mainly to find the defects of the welding surface and the
11Jun, 2024

The main process of double -sided buried arc welding straight seam steel pipes
1. Detective: After the steel plate enters the production line, the full board ultrasonic inspection is performed first; 2. Milling edge: Double -sided milling on the two edges of
11Jun, 2024

The difference between hot -rolled steel pipe and cold -rolled steel pipe
As an important part of steel products, steel pipes are divided into two categories: seamless steel pipe (round) and welded steel pipe (board, band) due to the different manufactur

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