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本文介绍了厂、院、所共同协作,对郧阳-20履带拖拉机履带板的结构及球铁的铸造、热处理工艺进行的探索,经过两轮改进、试制和试验,初步研制成功配半浮式履带销的等温淬火球墨铸铁履带板,并于1977年5月通过省级鉴定。 试验证明,这种履带板具有简化工艺,降低成本,磨损均匀和耐磨性好等优点,适应中小工厂生产,易于形成批量生产能力。
This article describes the cooperation of factories, hospitals, and institutes, and explores the structure of castor track plates and the casting and heat treatment processes of ductile iron of the Xiangyang-20 crawler tractor. After two rounds of improvement, trial production, and trials, it has been successfully developed with semi-floating equipment. The tracked austempered ductile iron track shoe was certified by the provincial government in May 1977. Tests have proved that this track shoe has the advantages of simplified technology, reduced cost, uniform wear and good wear resistance, adaptability to the production of small and medium-sized factories, and easy production of batch production capacity.