Formation Of Delamination Defects In Steel Strip And Its Effect On Steel Pipe Quality

The stratification is caused by the shrinkage defects of the ingot. The middle section of the steel plate rolled by ingot with shrinkage cavity is easy to occur stratification.The inner layer of the ...

Inspection And Cleaning Of Steel Tube Billet Defects

Defect Check:Generally use of visual inspection. If the surface quality requirements are relatively high, and the more oxide scrap on tube billet,it can be used pickling or shot peening treatment of t...

Introduction Of Several Main Seamless Pipe Rolling Technology

In the world there have been a variety of pipe rolling process. It mainly includes 8 kinds of pipe rolling technology, such as Erhard Pipe, automatic rolling pipe, Dicel pipe, three-roll pipe, hot ex...

Processing Technology Of Precision Bright Tube

Presicion steel pipeThe precision bright tube is a kind of high precision steel pipe material after the fine drawing or the cold rolling treatment. Because the inner and outer wall of the precision b...

Causes Of Automatic Hot Rolling Machine Occurrence Uneven Wall Thickness Of Seamless Pipe

According to the anatomical analysis of the seamless steel pipe after the hot rolling mill, it is considered that the uneven distribution of the wall thickness of the perforated capillary tube is bas...