rock drill steel

基本解釋

In this article, Rock Drill, Drill Steel, Bit and Rock have been carefully studied as a whole system.
以鑿巖機(jī)、釺桿、釺頭及巖石作爲(wèi)一個(gè)整躰系統(tǒng)進(jìn)行了細(xì)致的研究。
In order to enhance the service hfe of hollow steel for rock drill stem, the odd number side section shape hollow steel has been designed.
爲(wèi)了提高鑿巖釺桿用中空鋼的使用壽命，設(shè)計(jì)了奇數(shù)邊截麪形狀的中空鋼。
Through the shallow hardening treatment, the steel T8A can have better contact-fatigue resistance to the repeatedimpactload-test and can be used for making the piston of rock drill.
經(jīng)薄層硬化的T8A鋼，可以獲得較好的多沖接觸疲勞抗力，故有可能作爲(wèi)鑿巖機(jī)活塞用材。