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河北宣化工程机械公司20世纪末年从美国卡特彼勒公司引进D6D推土机生产技术以来,在消化吸收热处理技术的过程中,对有热处理要求的250多种零件进行了消化与分析,发现卡特彼勒公司的热处理技术要求有一定的合理性和科学性,有利于制定热处理工艺、提升热处理质量及提高生产管理水
Since the introduction of D6D bulldozer production technology from Caterpillar Inc. of the United States in the late 20th century, Hebei Xuanhua Construction Machinery Company digested and analyzed more than 250 kinds of spare parts required for heat treatment in the process of digestion and absorption heat treatment. It was found that Caterpillar Inc. Of the heat treatment technology requires a certain degree of rationality and scientific, conducive to the development of heat treatment process, improve the quality of heat treatment and improve production management water