所属分类：行业资讯 发布时间：2021-04-13 16:37:52 来源：http://www.lcnmb500.com 浏览量：
When producing wear-resistant steel plate, relevant heat treatment should be carried out. After preheating, forging and processing are carried out. The processing technology and application are also better. So in the heat treatment of wear-resistant steel plate, the temperature is really a technical activity, and the temperature should be properly controlled.
The heating temperature of wear-resistant steel plate is 810-830 ℃, and the holding time is determined according to the charging mode. Tempering temperature: 320 ℃, sufficient time, oil cooling after tempering to reduce temper brittleness. Treatment is to pay attention to the deformation of the workpiece, try to have anti deformation tooling and press quenching back.
Wear resistant steel plate is easy to overheat, so attention should be paid to heating temperature and holding time. It is recommended to heat 820 ℃ for proper insulation. Tempering temperature: 320 ℃, sufficient time. Hardness: 45-48hrc. Good performance. salt bath NaCl:BaCl=3 Heating temperature 820, heating time 30s / mm (mm refers to the effective thickness of parts), oil cooling. Tempering temperature 280, air furnace time 2 hours, nitrate furnace time 30 minutes.
The microscopic strength of martensite in wear-resistant layer of wear-resistant steel plate can exceed HVL 700-2000, and the surface strength can exceed HRC 58-62. The key of wear-resistant layer of wear-resistant steel plate is cobalt alloy. In addition, manganese, molybdenum, niobium, nickel and other alloy components are added. The martensite in the alloy is distributed in fibers, and the chemical fibers are vertical to the surface.
Hardox500 wear-resistant plate microscope strength refers to the strength of the hard phase, but not the higher the strength, the higher the wear resistance. Strength is the basis of high-quality wear resistance of wear-resistant steel plate, but the relationship between strength and wear resistance is not positive proportion; wear resistant steel plate is often resistant to wear, the fundamental reason is that there are hard particles, and there are also soft particles.
Generally, in the whole process of damage, there will be some falling chemicals, which will melt into the soft routine, and it is not easy to cause great damage to the surface; if the strength of the conventional mechanism is also relatively high, the falling wear-resistant materials or other chemicals will grind each other in the mutual fitness exercise, quickly destroying the conventional mechanism.