Application of high-speed steel rolls in finishing stand of bar mill

Abstract: This article introduces the problems, experiences and effects of using high-speed steel rolls in the finished product rack of the bar factory of Wuhan Iron and Steel Group Echeng Iron and Steel Co., Ltd. The main improvement is to increase the diameter of the cooling elbow and increase the number of nozzles, and after […]

Reasons for fracture of high-speed steel rolls during heat treatment

1. Fracture analysis For centrifugally cast high-speed steel composite rolls whose outer layer material is high-speed steel and whose core material is ductile iron, the roll body sometimes breaks during the heat treatment process. There are two types of fractures, one is a fracture with a straight core and a tapered outer layer; the other […]

Production practice of controlling bonding layer quality of high-speed steel rolls

With the advancement of technology and the improvement of rolling product requirements, the performance requirements for roll materials are getting higher and higher. The performance of a single metal often cannot meet the needs of production, and bimetallic composite materials have been increasingly widely used because they have the advantages of both metal materials. Many […]

Application of high-speed steel rolls in narrow strip steel production

1. Introduction The 620mm strip production line of Laigang Yinshan Section Steel Co., Ltd.’s plate and strip factory has 12 flat roller mills and 4 vertical roller mills, adopting a fully continuous layout. The vertical roller RE0 and the flat roller R0 form a billet rolling unit; the vertical roller RE1 and RE2 and the […]

Analysis and Control of Burst Grooving in High-Speed Steel Rolls

This article systematically analyzes the operating conditions of high-speed steel rolls and clarifies that the main cause of roll cracking is the combined effect of thermal fatigue, mechanical, friction and other stresses. By implementing measures such as improving cooling water application and optimizing process parameters, cracking has been reduced. The occurrence of slot accidents has […]

Measures to increase the rolling capacity of high-speed steel rolls

This article introduces the use effects of high-speed steel rolls and the main causes of wear during use. According to the causes, the roll cooling water system, cooling water pipes and nozzle layout are reasonably designed to increase the rolling capacity of high-speed steel. Reduce the number of roll and slot changes in the production […]

Preparation of high-speed steel roll materials by electroslag remelting method

electroslag remelting method, HSS rolls

High-speed steel rolls have excellent properties such as long service life, smooth surface and uniform thickness of rolled materials. At present, the centrifugal casting method is mostly used in industry to prepare the roll rings of high-speed steel rolls. The preparation process is simple and low-cost. However, because the high-speed steel materials used for rolls […]

Quality inspection of high speed steel rolls

inspection of high speed steel rolls, hss roll

High-speed steel composite rolls are favoured by users due to their high hardness and good wear resistance, and their application in the steel rolling industry has developed rapidly. High-speed steel roll inspection is an important link to ensure product quality and later use effects. This article discusses the product inspection items and practices of high-speed […]

A brief analysis of the causes of damage to high-speed steel roll grooves

damage to high-speed steel roll

This article introduces the reasons for the cracking of the high-speed steel roll ring and the loss of meat in the groove. By taking technical measures such as increasing the width of the roll ring, increasing the repair volume of the groove, and improving the cooling effect, the production problem has been solved, and the […]