- 责任者：Yan Guanxin (No.4 Team of Henan Coalfield Geology Bureau ; Pingdingshan 467000 ; China)
- 刊名：Exploration Engineering
- 出版年：2009
- 卷期：36(5)
- 关键词：金刚石钻头 ; diamond bit ; 钻头胎体 ; bit matrix
- 页码：p.75-77，80
- 图表：4 illus., 3 tables, 3 refs.
- 分类号：2000
- issnNo：ISSN1672-7428
- isbnNo：CN11-5063/TD
Aiming at the low drilling efficiency and short service life of bit for drilling in hard and compact rocks and the high price of conventional matrix materials for diamond bit, this paper introduced mixing regression design method. Experimental study was made on the replacement of tungsten carbide-based matrix with a new iron-based matrix material; analysis was made on the relationship between the diamond exposure of hot-pressed bit and rock abrasiveness properties, the matrix components and the performances were determined to be important. The results of indoor drilling test on rock with drillability of grade Ⅸ showed that the average penetration rate reached