hot expanding steel pipe technology

Hot expanding steel pipe also called hot expanded seamless tube is relatively low density but the contraction of the strong steel seamless pipe. The process of skew rolling or drawing is to expand the steel pipe diameter. In a short period of time, the steel pipe thickening can be manufactured non-standard and special kinds of seamless tubes with low cost and high production efficiency in the current field of the tube rolling. Hot expanded seamless steel pipes are expanded the diameter of the pipe to finish the process that is the thermal expansion of the pipe production.

Hot Expanding Seamless Steel Pipe


So far, the thermal expansion technology is relatively mature for the carbon steel pipe production. The level of device and ways of thermal processing has made substantial progress. From billet to the basic technological principle, is still tube pressure perforation as an original means of preparation of the waste tubes. And the subsequent thermal expansion will achieve the reduction of wall and expanding.

As smelting, rolling pipe primary line extension is from the thermal expansion pipe. The production and practice have been a wide scope of application to fill the main steel production both at home and abroad. Although it is lack of some special types of large-diameter thin-walled steel pipe blank, it enhances production technologies and controls various parameters from the thermal expansion. The pipe precision still requires further research and improvement of China's steel businesses to bolster cooperation to collectively study to enhance the thermal growth of steel production standards to further promote the introduction of China's steel industry.