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现代化高生产率的冲击迴转鑿岩工具镶有硬质合金的现代化高生产率的冲击廻转鑿岩工具,在苏联最先制造成功,制造这种工具的成果应全部归功于苏联先进科学;苏联先进的科学在这方面要比国外资本主义国家(美国、英国、德国、瑞士、加拿大等国家)先进10-15年。从1934、1935年开始苏联已经普遍地采用了镶有硬质合金的钎頭,例如克里沃羅什铁矿区,乌拉尔及克查克斯坦有色金属礦山这时都已采用这种钎頭。根据硬质合金联合公司的资料,仅在1936年内为了镶制钎頭,生产了150,000个硬质合金片。在同一时期内就开始大批生产镶有硬质合金的活动鑽頭。1936年曾召开了关于总结采用硬质合金经验的全苏技术会议,该次会议所统计的大规模使用有硬质合金的钎
Modern High Productivity Impact Rotary Drilling Tools The modern, high productivity impact rock drilling tools cemented carbide, first manufactured successfully in the Soviet Union, all due to the advanced science of the Soviet Union; advanced Soviet Union Science in this area than in foreign capitalist countries (the United States, Britain, Germany, Switzerland, Canada and other countries) advanced 10-15 years. Since 1934 and 1935, the use of cemented carbide bits has been widespread in the Soviet Union, such as the Klivollish iron mines, which are now used in non-ferrous metal mines in Urals and Kakachstan. According to the Cemented Carbide Corporation, 150,000 cemented carbide sheets were produced in 1936 to insert bits. In the same period, large numbers of active drill bits with cemented carbide were started. In 1936, the All-Su-tech conference on the experience of using cemented carbide was held. The convention used large-scale tungsten carbide brazing