Wear-resisting steel plate is widely used in working conditions particularly harsh, demanding high-strength, high wear-resistant properties of engineering, mining, construction, agriculture, cement production, port, electric power and metallurgical machinery products. such as bulldozers, loaders, excavators, dump trucks and a variety of mining machinery, grab, stacker, feed bending structure and so on. One of the major problems that has plagued the industry for many years is wear, especially the structure of friction, impact, and scouring, such as rock and mineral materials. According to statistics, the industrialized countries, The economic loss of mechanical equipment and its parts is about 4% of GDP. Therefore, the solution to wear and prolong the service life of the mechanical equipment and its parts become the industry personage in the design, the primary issue to be considered in the manufacture and use of various machinery and equipment. Considering from the angle of national economy, it is very necessary to develop high strength wear resisting steel for construction machinery, which has been used in foreign enterprises to produce high strength wear-resisting steels and applications, such as Sumitomo Corporation, JFE, Ssab and Swebor, German Cloube, Mittal, etc. have produced wear-resistant life than ordinary steel 4 times times higher than the wear-resistant steel. Most of the domestic use of nm360~400, international nm400~550, annual consumption in $number million tons.
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