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前言为了加速农业机械化,1976年以来,我所与一机部农机院,天津一机局计量站、冶金部钢研院及广东,黑龙江、保定等地农机厂组织犁铧攻关,从硬化表面涂覆工艺入手,以期提高犁铧i作表面的耐磨性,延长其使用寿命。多年来,为提高犁铧寿命,在设计用钢及热处理工艺等方面都进行了大量的工作。我国研制的65 Mn、65 Si Ma R犁铧钢及
Introduction In order to speed up the mechanization of agriculture, since 1976, I worked with the Agricultural Machinery Institute of a machine shop, the metering station of Tianjin No.1 Bureau, the Steel Research Institute of the Ministry of Metallurgical Industry and the agricultural machinery factory in Guangdong, Heilongjiang and Baoding to coat the hardened surfaces Process start, in order to improve the ploughshare Hua i surface wear resistance, to extend its service life. Over the years, in order to improve the lifespan of plowshare, a great deal of work has been done in the design of steel and heat treatment process. Our country developed 65 Mn, 65 Si Ma R Plow steel and