Influence of nonmetallic inclusions on endurance of percussive machines

被引：7

作者：

Repin, A. A. ^{[1
]}

Alekseev, S. E. ^{[1
]}

Popelyukh, A. I. ^{[2
]}

Teplykh, A. M. ^{[1
]}

机构：

[1] Russian Acad Sci, NA Chinakal Inst Min, Siberian Branch, Novosibirsk 630091, Russia

[2] Novosibirsk State Tech Univ, Novosibirsk 630092, Russia

来源：

JOURNAL OF MINING SCIENCE | 2011年 / 47卷 / 06期

关键词：

downhole hammer; drill bit; borehole; nonmetallic inclusions; endurance; reliability;

D O I：

10.1134/S1062739147060128

中图分类号：

TD [矿业工程];

学科分类号：

0819 ;

摘要：

Based on the results of the industrial testing of downhole hammers with underreamers and on the analysis of the influence exerted by nonmetallic inclusions in steel on the steel fatigue endurance under the impact load, it has been shown that the stringer-type nonmetallics greatly aggravate the steel endurance both under compression and bending, although have no effect on the steel hardness and strength indexes.

引用

页码：798 / 806

页数：9