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随着我国钢铁工业的迅速发展,贫矿开采量的比重日益增加。因此,要求矿石入选的比重逐渐增加。这样,破碎机和磨矿机衬板的消耗问题就显得更为突出。例如一台φ2700×2100球磨机,机器总重82吨,而高锰钢衬板的重量却占30％以上。磨碎1吨铁矿石,高锰钢衬板的消耗量如按0.24公斤计算,仅依我国黑色金属选矿而言,每年大约消耗3万吨高锰钢。由此看出,提高衬板的耐磨性能,延长衬板的使用寿命,加强对高强度耐磨材料的研究是当前非常重要的一个课题。高锰钢是在破碎机和磨矿机中应用非常广泛的一种耐磨材料,因为它具有很高的韧性和良好的加工硬化特性。我国生产高锰钢的历史
With the rapid development of China’s steel industry, the proportion of lean mining is increasing. Therefore, the proportion of minerals that are required to be selected gradually increases. In this way, the crusher and mill liner consumption problem becomes even more prominent. For example, a φ2700 × 2100 ball mill, the machine weighs 82 tons, while the weight of high manganese steel liner but accounted for more than 30%. Grinding 1 ton of iron ore, high manganese steel liner consumption as calculated by 0.24 kg, according to China’s black metal beneficiation, the annual consumption of about 30,000 tons of high manganese steel. This shows that to improve the wear resistance of the liner to extend the service life of the liner, to strengthen the study of high-strength wear-resistant materials is currently a very important issue. High manganese steel is a very versatile wear-resistant material used in crushers and mills because of its high toughness and good work-hardening properties. China’s history of producing high manganese steel