Zhejiang Max Stainless Steel Co., Ltd. is a modern stainless steel pipe manufacturing enterprise integrating scientific research, production and sales. The company adopts advanced, efficient and mature production management mode. The company chooses Walsin Lihwa and Yongxing Special Steel parent materials as the leading material for the production of high-quality stainless steel, providing the most reliable and safest stainless steel pipes and fittings for global users.
During the hot rolling process of stainless steel heat exchange tubes, the more common problems are metallurgical defects and mechanical processing defects.
Metallurgical defects: thick skin, scars, inclusions, titanium strips; machining defects: folded edges, edge cracks, scratches, rolling marks, cracks, iron indentations.
So why do problems like the above appear?
The iron forest is under pressure, and the surface distribution of the stainless steel heat exchange tubes is uneven. Generally, cooling is required to control the heating temperature to increase peeling, improve the material on the roll and prevent the roll from sticking.
Mechanical damage, rolling scale, indentation and scratches are the surface characteristic defects of hot rolling, and rolling scale and indentation are caused by the scarring, scale and crack edge of the slab. Scratches caused by irregular rolling and irregular guide contact while the guide is moving. Generally, it is necessary to improve the rolling guide plate, control the rolling speed of stainless steel heat exchange tubes, and reduce defects.