Detailed introduction of rolling mill

Electroplated hard chrome processing Roller is a common working tool in the metal processing industry, mainly used in the processing of metal materials such as flattening, stretching, and curling. It is usually made of metal materials and has the characteristics of high strength, high hardness, high wear resistance and high durability. Rollers are usually used in the process of rolling steel, rolling aluminum, rolling metal strips, etc., and are widely used in steel, non-ferrous metals, ferroalloys and other industries.

Rollers are generally used in pairs of two or more to form a roll group. These rolls can be installed on the roll stand and driven by the transmission mechanism to rotate the rolls. During the working process, the metal material passes through the working area between the two rolls and is subjected to a large pressure, which causes the metal material to undergo plastic deformation and reduce its thickness.

The main components of the roll include the journal, drum, upper roller, lower roller, connecting rod, box door and automatic device. Among them, the journal is an important component connecting the roll and the roll stand. It bears a large axial force and bending force, and needs to have high strength and high wear resistance. The roller is the working part of the roller, which contacts the metal material and bears great pressure and friction, and needs to have high hardness and high wear resistance.

The manufacturing materials of the roller are usually alloy steel, high-speed tool steel, tungsten steel, carbide steel, etc. according to the strength, hardness and other requirements of different power rolling mills. According to different working requirements and the characteristics of the processed materials, the surface of the roller can be specially treated, such as grinding, polishing, carbide spraying, etc., to improve the working efficiency and service life of the roller.

The shape and size of the roller also vary according to different working requirements and the characteristics of the processed materials. Generally speaking, the roller can be divided into two types: working roller and support roller. The working roller is mainly used for flattening, stretching and curling metal materials, and has a larger diameter and a narrower working surface. The support roller is mainly used to support the working roller, maintain the stability of the metal material, and has a smaller diameter and a wider support surface.

In addition, there are some special types of rollers, such as spiral rollers, gear rollers, spare rollers, etc., which are used in different metal processing processes, making full use of the characteristics and advantages of the rollers, and improving work efficiency and product quality.

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