中国钎钢钎具产业的发展与资源节约

Development of Rock Drilling Tools Industry and Resource Saving

凿岩钎钢钎具是传统钨工业的重要应用领域。总结了中国钎钢钎具产业的发展和现状,重点介绍了锥体连接钎头、硬质合金整体钎和凿岩钻车用中大直径螺纹连接钎头的特点,并分析了各系列产品应用中的问题,提出了钎头重磨再用和废旧硬质合金钎头残留刃齿回收利用方面的建议,并重点推荐了"一步法"生产硬质合金的新工艺。文章指出了当前我国钎钢钎具行业的进一步发展,急需解决钎具使用技术及配套机具研发相对滞后,以及废旧硬质合金片齿的回收利用等问题。

Tungsten has been widely applied for producing rock drilling tools. Upon summarizing the development tendency and status of Chinese rock drilling tools industry, this paper analyzed the problems existed in rock drilling products by focusing on the characteristics of tapered bit, integral drill steel and threaded drill head with medium-large diameters. Some recycling suggestions, such as drill head regrinding, reusing and residual tooth blade drill head in the waste cemented carbide, were put forward. A new technology for producing cemented carbide, ＂one step method＂, was recommended. The paper pointed out that, the existing problems, such as outdated application methods and insufficient research funds of supporting equipments for rock drilling tools industry, must be addressed for the smooth development of the industry.