论文部分内容阅读
一、《重型液压凿岩机用直径50毫米十字、球齿波形螺纹纤头》通过两部联合鉴定铁道部科技局和地质矿产部科技司,于一九八四年五月二十四日至二十六日,在成都召开了《重型液压凿岩机用直径50毫米十字、球齿波形螺纹钎头》鉴定会.参加会议的有铁道部、地矿部有关隧道工程局、地矿局、工厂、研究所、院校以及机械、冶金、有色、水电、煤炭、中国科学院金属研究所、湖北省科委、湖北广济长江工具厂等35个单位.会议期间听取了武汉地质学院钎头科研组和铁道部隧道工程局科研所作的钎头研究、试验报告.会议一致认为“该设计合理,选材适当,工艺先进,技术经济
First, the “heavy hydraulic rock drill with a diameter of 50 mm cross, ball-shaped thread screw head” through the two joint identification of the Ministry of Science and Technology and the Ministry of Geology and Mineral Resources Department of Science and Technology, May 24, 1984 to 20 On the 6th, an appraisal meeting for “heavy hydraulic rock drill with a diameter of 50 millimeters and a ball-shaped thread drill head” was held in Chengdu on June 16. The meeting was attended by the Ministry of Railways, the Ministry of Geology and Minerals, the Tunnel Engineering Bureau, the Bureau of Geology and Minerals, the Factory and the Institute , Institutions and machinery, metallurgy, nonferrous metals, hydropower, coal, Institute of Metal Research Chinese Academy of Sciences, Hubei Provincial Science and Technology Commission, Hubei Guangji Yangtze River Tool Factory, etc. 35 units during the meeting heard the Geological Institute of Wuhan Institute of brash and the Ministry of Railways Tunnel Engineering Bureau made drill bit research, test report .The meeting agreed that "the design is reasonable, the appropriate selection, advanced technology, technical and economic