Abrasion-resistant alloy steel protecting cover

Abstract

The invention discloses an abrasion-resistant alloy steel protecting cover applicable to a shot blasting chamber. The abrasion-resistant alloy steel protecting cover comprises the following alloy components in percentage by weight: 2.3-2.9% of carbon, 1.5-1.8% of silicone, 13-15% of manganese, 2.5-3.5% of chrome, 0.7-0.9% of nickel, 0.7-0.9% of titanium, 0.2-0.3% of silicone, 0.7-1.5% of rare earth, 0.02-0.04% of sulphur, and the balance iron. The abrasion-resistant alloy steel protecting cover has the following beneficial effects: proper materials and proper mixing ratio are selected, so thatthe manufactured board is high in hardness, strength and toughness, outstanding in protection performance, long in service life, and high in economy and comprehensive mechanical performance; particularly the protecting board is processed by reasonable processing technology, the surface can be quickly processed and hardened and is subjected to martensite phase transformation in case of high impactin the shot blasting process, thus the surface hardness is increased to be 180-190 HRC, and moreover, the toughness is high.

Description

technical field [0001] The invention relates to a high manganese wear-resistant steel rolling sheath material, in particular to a wear-resistant alloy steel sheath used in a shot blasting chamber. Background technique [0002] The shot blasting machine uses a high-speed rotating shot blaster to spray the projectile at high speed, so that the projectile has a certain kinetic energy, and the high-speed linear motion projectile directly impacts on the surface of the workpiece to remove the rust on the surface of the workpiece, but the shot blasting machine is running During the shot blasting process, the projectile will bypass the workpiece and hit the roller in the shot blasting machine chamber. After a long time, the high-speed projectile will penetrate the roller. Therefore, in the prior art, it is often installed on the roller of the shot blasting machine room. Sheath, there are many types of existing protective plates, generally high-chromium cast iron or manganese steel m...

AI Technical Summary

Problems solved by technology

[0002] The shot blasting machine uses a high-speed rotating shot blaster to spray the projectile at high speed, so that the projectile has a certain kinetic energy, and the high-speed linear motion projectile directly impacts on the surface of the workpiece to remove the rust on the surface of the workpiece, but the shot blasting machine is running During the shot blasting process, the projectile will bypass the workpiece and hit the roller in the shot blasting machine chamber. After a long time, the high-speed projectile will penetrate the roller. Therefore, in the prior art, it is often installed on the roller of the shot blasting machine room. Sheath, there are many types of existing protective plates, generally high-chromium cast iron or manganese steel materials, but in the face of high-speed jet projectiles, the strength of the existing sheath is still not good enough due to material problems, and the service life is not good enough Long, so it must be replaced after a period of use, which not only causes waste of cost but also delays the construction period and affects production efficiency