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履带板使用寿命短(只有国外先进水平的1/3～1/7),一直是工程机械行业生虚中的一个未解决的问题。清华大学铸工试验室由于近年来超高强度钢研究工作取得的进展,在使低合金结构钢的靱性、强度和硬度更好的统一起来的思想指导下,徙1963年起,以国产拖拉机履带板材料,进行了大量的试验研究工作。先后共试制了低合金钢履带板1300多片,在19台“东方红”拖拉机上和常用的高锰钢履带板进行了对比试验,经过实验室试验、生产性田野试验和扩大田野试验三
The short service life of track shoes (only 1/3 to 1/7 of the advanced level in foreign countries) has always been an unsolved problem in the construction machinery industry. Tsinghua University foundry laboratories have made progress in research on ultra-high-strength steels in recent years. Under the guidance of the idea that the toughness, strength, and hardness of low-alloy structural steels are better unified, since 1963, domestically produced tractor track shoes Materials, a lot of experimental research work. A total of 1,300 pieces of low-alloy steel track shoes were trial-produced in succession. Contrasting tests were conducted on 19 “Dongfanghong” tractors and commonly used high-manganese steel track shoes. After laboratory tests, productive field tests and expanded field tests, three