Industrial News
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How to prevent spiral steel pipes from being damaged during transportation
1. Fixed-length spiral steel pipes do not need to be bundled. 2. If the ends of the spiral steel pipe are threaded, they should be protected by thread protectors. Apply lubricant or anti-rust agent to the thread. The spiral steel pipe has holes at both ends and pipe mouth protectors can be added ...Read more -
What to prepare before steel pipe welding
Welding equipment: Welding machines are used for root welding; multi-functional automatic pipe welding equipment is used for filling and capping. Welding materials: φ3.2 E6010 cellulose electrode is used for root welding; φ2.0 flux-cored self-protected welding wire is used for filling and cover. ...Read more -
Representation methods and welding methods of welded steel pipes
How to indicate the grade of welding steel: Welding steel includes carbon steel for welding, alloy steel for welding, stainless steel for welding, etc. The way to indicate the grade is to add the symbol “H” to the head of each type of welding steel grade. For example H08, H08Mn2Si, H1...Read more -
Reasons for bending of steel pipes
1. Uneven heating of steel pipe causes bending The steel pipe is heated unevenly, the temperature along the axial direction of the pipe is different, the structure transformation time is different during quenching, and the volume change time of the steel pipe is different, resulting in bending. 2...Read more -
Methods for forming and processing large-diameter steel pipes
Large-diameter steel pipes are also called large-diameter galvanized steel pipes, which refer to welded steel pipes with hot-dip plating or electro-galvanized layers on the surface of large-diameter steel pipes. Galvanizing can increase the corrosion resistance of steel pipes and extend their ser...Read more -
How to deal with different wall thicknesses of boiler steel pipes
When the thickness of the boiler steel pipe wall is different, compensation gaskets can be used to deal with it. 1. The thickness of the steel pipe wall can be thickened or thinned to achieve the required thickness. 2. When the steel pipe wall thickness is inconsistent, high-strength bolts and wa...Read more