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1980年1月12～23日,冶金工业部地质司在广州主持召开了“46毫米口径绳索取心钻进技术(YS型绳索取心钻具)”及“65公斤级27Mn Mo VB绳索取心钻杆”鉴定会.参加会议的有冶金系统有关勘探公司(队)、矿山和钢厂的代表共76人.会议听取了绳索取心钻进技术、绳索取心钻具及钻杆的研究试验报告,并到海南岛广东冶勘934队审查了两项研究在海南铁矿区的试验情况.代表们认真审查和讨论了有关技术资料和数据,一致通过了相应的两项技术鉴定书.46毫米口径绳索取心钻进技术是冶金部地质研究所与广东冶金地质勘探公司等单位协怍进行研究试验的.经过三年多的生产试验,完成了13个
From January 12 to January 23, 1980, the Geological Division of the Ministry of Metallurgical Industry hosted the “46 mm caliber coring drilling technology (YS rope coring drill)” and “65 kg class 27Mn Mo VB Rope coring drill pipe ”certification meeting. Metallurgical system to attend the meeting of the exploration company (team), mines and steel representatives of a total of 76 people heard the cord coring drilling technology, rope coring drill and drill Pole research report and went to Hainan Metallurgical Exploration 934 team examined the two studies in Hainan iron ore trial situation.Deputy delegates carefully reviewed and discussed the relevant technical information and data, unanimously adopted the corresponding two technologies Identification book .46 mm diameter rope coring drilling technology is the Metallurgical Institute of Geology and metallurgy geological exploration company in Guangdong and other units to conduct research and experiments. After more than three years of production testing, completed 13