Wear-resistant steel is widely used in mining machinery, coal mining and transportation, construction machinery, agricultural machinery, building materials, power machinery, railway transportation and other sectors. For example, the steel balls and linings of ball mills, the teeth and buckets of excavators, the rolling mortar walls, tooth plates, and hammers of various crushers, the crawler plates of tractors and tanks, the striking plates of fan mills, and railway tracks. Forks, middle trough plates, trough tops, circular chain for scraper conveyors in coal mines, shovel blades and teeth for bulldozers, linings for large electric wheel truck buckets, roller cone bits for perforation in petroleum and open-pit iron mines, etc. , The above list is mainly limited to the application of wear-resistant steel that is subject to abrasive wear. In all kinds of machinery, all workpieces with relative motion will produce various types of wear, which will improve the resistance of the workpiece material. Abrasive requirements or the use of wear-resistant steel, there are numerous examples in this regard. Grinding media (balls, rods and liners) used in ore and cement mills are steel wear parts that consume a lot of money. In the United States, most of the grinding balls are forged or cast with carbon steel and alloy steel, which account for 97% of the total consumption of grinding balls. In Canada, steel balls accounted for 81% of the grinding balls consumed. According to statistics at the end of the 1980s, China consumes about 800,000 to 1 million tons of grinding balls every year, and the annual consumption of mill liners across the country is nearly 200,000 tons, most of which are steel products. The central trough of scraper conveyors used in coal mines in China consumes 60,000 to 80,000 tons of steel plates each year.
