Description: The built-in hot-rolled seamless steel pipe refers to the spiral, semi-spiral or irregularly distributed zigzag folds on the inner surface of the steel pipe.

Description: Discuss the deviation of the strip due to various factors, and analyze and solve the deviation of the strip during the production process of

Description : This paper mainly describes the answers to possible problems in steel rolling Keyword : work roll, middle rollers, rolling line, cold rolled, unilateral

Plate shape defects 1. Beveling, pickling rolling, finishing, etc. Refers to the beveling of steel coils or strips when trimming the edges 2. Sickle bending

External quality of cold rolled and galvanized products One of the main reasons why cold-rolled sheet is a high-quality product is the strict requirements for

Description： Common surface defects of cold-rolled plates include pitting defects, cracks in the middle of the chilled plate, edge cracks of the chilled plate, band-shaped