Some of the problems that are easy to appear for pipes are definitely inseparable from the problem of wear, and welded pipes are no exception. Welded steel pipes will inevitably have some wear problems during the production process.
Read moreWhat is the process and purpose of borax blowing in the production process of seamless steel pipes? The limited mandrel continuous rolling mill has one more process than the floating and semi-floating mills, which is to spray antioxidant with nitrogen into the capillary before the entrance of the tube mill.
Read moreThe flattening performance test of seamless steel pipe plays an important role in the hardness, melting point, corrosion resistance and pressure of seamless steel pipe.
Read moreSeamless steel pipes are divided into two types: hot-rolled and cold-drawn seamless steel pipes. Hot rolled steel pipes are divided into general steel pipes, low and medium pressure boiler steel pipes, high pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, geological steel pipes and other steel pipes.
Read moreFolds and internal cracks in medium and low pressure boiler tubes are the most common forms of defects. Internal folds and internal cracks may be distributed along the entire length of the steel pipe, or located only at both ends or part of the length. When rolling alloy steel pipes, inward folding is particularly easy to occur, and rolling general carbon steel pipes sometimes occur.
Read moreSpiral steel pipe is a spiral seam steel pipe made of strip steel coils as raw materials, often extruded and formed by automatic double-wire double-sided submerged arc welding.
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