Small-size downhole air drill hammers of increased capacity

Autor:	V. V. Timonin, S. E. Alekseev, D. I. Kokoulin, A. I. Popelyukh, A. A. Repin
Rok vydání:	2016
Předmět:	Engineering Drill business.industry Geology 02 engineering and technology Geotechnical Engineering and Engineering Geology Laboratory testing 020501 mining & metallurgy law.invention 0205 materials engineering law Low density Head (vessel) Geotechnical engineering Hammer business Marine engineering
Zdroj:	Journal of Mining Science. 52:1122-1128
ISSN:	1573-8736 1062-7391
DOI:	10.1134/s1062739116061650
Popis:	The authors review key approaches to designing small-size air drill hammers. The approach to increasing impact capacity of air drill hammers by means of buildup of blow frequency is substantiated. The experimentally obtained and compared characteristics of air drill hammers equipped with the heads made of steel and titanium prove feasibility of increasing impact capacity by means of using low density materials. The technology of thermal treatment of a titanium-alloy hammer head is described, and its laboratory testing results are reported.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5bd58c4a3c51aed6afc49b379bf476a4 https://doi.org/10.1134/s1062739116061650 Zobrazit plný text záznamu Plný text ve formátu PDF