What are the usage and characteristics of wear-resistant steel

For machinery, such as excavators, bulldozers, drilling rigs, etc., because of the harsh working environment, the choice of material is very important, and wear-resistant steel is very important at this time. So what are the characteristics and usage of wear-resistant steel?

First, the characteristics of wear-resistant steel

Wear-resistant steel is smelted by electric furnace or converter, and most of the products are castings. In recent years, hot-worked materials such as forging and rolling are increasing. The production method of wear-resistant steel parts used in general machinery is not much different from other workpieces, but there should be certain requirements in the heat treatment process or surface treatment process to meet the needs of ensuring wear resistance. Refining measures should be taken for those steels whose metallurgical purity significantly affects wear resistance, and limit requirements for harmful impurities and gases.

Second, the usage of wear-resistant steel

Wear-resistant steel is widely used in mining machinery, coal mining and transportation, construction machinery, agricultural machinery, building materials, electric machinery, railway transportation and other departments. For example, the steel ball lining plate of the ball mill, the bucket teeth and buckets of the excavator, the rolling white wall, the toothed plate hammer head of various crushers, the crawler shoes of tractors and tanks, the strike plate of the fan mill, the railway frog, the coal mine scraper The middle groove-in-plate groove for plate conveyor, circular chain, blade and tooth for bulldozer, lining plate for bucket of large electric wheel, roller cone bit for perforating oil and opencast iron ore, etc.

Thrid, Process development of wear-resistant steel

In recent years, the surface strengthening (lubricating) technology of steel materials has developed rapidly, and related new technologies and new processes have emerged one after another. Different surface strengthening technologies can be selected according to different needs to improve the wear resistance of steel parts under various types of wear conditions. Replacing expensive alloy steel with workpieces made from less expensive base materials. Carburizing, carbonitriding, nitriding and other processes are still the main measures to strengthen mechanical parts. Such processes have achieved obvious results in improving wear resistance under various working conditions of different parts.

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