Products News
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Anti-corrosion of inner wall of steel pipe
Steel pipe inner wall anti-corrosion A device used for the inner wall anti-corrosion device of the welded joint of the inner coated steel pipe, which is characterized in that a sacrificial anode made of lead, magnesium, zinc, or its alloy is connected to a terminal made of conductive metal materi...Read more -
Spiral welded pipe and its development direction
The characteristics of spiral welded pipe production are: (1) Tubes with a variety of outer diameters can be produced with strips of the same width; (2) The pipe has good straightness and precise dimensions. The inner and outer spiral welds increase the rigidity of the pipe body, so there is no n...Read more -
Method of welding steel pipe forming
1.Single radius forming method. The single-radius roll forming method has three types: circumferential bending forming method, edge bending forming method, and center bending forming method. The single radius forming method is: the hole pattern is composed of a single radius, the horizontal rolle...Read more -
Wall thickness accuracy of straight seam steel pipe
Controlling the wall thickness of straight seam steel pipes is a difficult point in the production of steel pipes. 1. Tube billet heating The heating should be average to prevent the rapid rise and fall of the temperature. The temperature of each rise and fall should be steady and slow, and the t...Read more -
Advantages and application of inner and outer coated cable sleeve steel pipe
Adavantages of inner and outer coated cable sleeve steel pipe 1. High mechanical strength, good bending resistance, and pressure bearing capacity; 2. The inner wall of the pipeline is smooth, without burrs, and does not scratch the cable; 3. Good weather resistance, the product will not be affect...Read more -
Reasons for rust and pollution of stainless steel pipes
1. When road construction, construction projects, or various vehicles are walking, they are attached to the scattered earth, sand, dust, iron powder, etc. 2. When it is polluted by harmful substances such as sulfurous acid gas contained in the exhaust gas of cars, buses, etc. 3. It is polluted by...Read more