Production and classification of steel
2022-05-06
1. The concept of steel: Steel is a material of various shapes, sizes and properties that we need through pressure processing of ingots, billets or steel.
Steel is an essential and important material for national construction and the realization of the four modernizations. It is widely used and has a wide variety. According to the different cross-sectional shapes, it is generally divided into four categories: profiles, plates, pipes and metal products. In order to facilitate the production and ordering of steel Supply and do a good job in operation and management, and are divided into heavy rail, light rail, large section steel, medium section steel, small section steel, cold-formed section steel, high-quality section steel, wire rod, medium and heavy steel plate, thin steel plate, electrical silicon steel sheet, strip steel, no Seam steel pipe, welded steel pipe, metal products and other varieties.
2, the production method of steel
Most steel processing is through pressure processing, which plastically deforms the processed steel (bill, ingot, etc.). According to the different processing temperature of steel, it can be divided into cold working and hot working. The main processing methods of steel are:
Rolling: A pressure processing method in which a metal billet is passed through a pair of rotating rolls (various shapes), and the cross-section of the material is reduced and the length is increased due to the compression of the rolls. This is the most commonly used production method for steel production, mainly used for Production of profiles, plates and pipes. Cold-rolled and hot-rolled.
Forging: A press working method that uses the reciprocating impact force of a forging hammer or the pressure of a press to change the blank into the shape and size we need. Generally divided into free forging and die forging, it is often used to produce large materials, billets and other materials with large cross-sectional dimensions.
Drawing: It is a processing method in which the rolled metal billets (forms, pipes, products, etc.) are drawn through the die holes to reduce the cross-section and increase the length. Most of them are used for cold working.
Extrusion: It is a processing method in which the metal is placed in a closed extrusion tube, and pressure is applied at one end to extrude the metal from the specified die hole to obtain a finished product with the same shape and size. It is mostly used for the production of non-ferrous metal materials.
Steel is an essential and important material for national construction and the realization of the four modernizations. It is widely used and has a wide variety. According to the different cross-sectional shapes, it is generally divided into four categories: profiles, plates, pipes and metal products. In order to facilitate the production and ordering of steel Supply and do a good job in operation and management, and are divided into heavy rail, light rail, large section steel, medium section steel, small section steel, cold-formed section steel, high-quality section steel, wire rod, medium and heavy steel plate, thin steel plate, electrical silicon steel sheet, strip steel, no Seam steel pipe, welded steel pipe, metal products and other varieties.
2, the production method of steel
Most steel processing is through pressure processing, which plastically deforms the processed steel (bill, ingot, etc.). According to the different processing temperature of steel, it can be divided into cold working and hot working. The main processing methods of steel are:
Rolling: A pressure processing method in which a metal billet is passed through a pair of rotating rolls (various shapes), and the cross-section of the material is reduced and the length is increased due to the compression of the rolls. This is the most commonly used production method for steel production, mainly used for Production of profiles, plates and pipes. Cold-rolled and hot-rolled.
Forging: A press working method that uses the reciprocating impact force of a forging hammer or the pressure of a press to change the blank into the shape and size we need. Generally divided into free forging and die forging, it is often used to produce large materials, billets and other materials with large cross-sectional dimensions.
Drawing: It is a processing method in which the rolled metal billets (forms, pipes, products, etc.) are drawn through the die holes to reduce the cross-section and increase the length. Most of them are used for cold working.
Extrusion: It is a processing method in which the metal is placed in a closed extrusion tube, and pressure is applied at one end to extrude the metal from the specified die hole to obtain a finished product with the same shape and size. It is mostly used for the production of non-ferrous metal materials.
