cov ntsiab lus
Roof bolt laum me ntsis yog ib yam ntawm cov cuab yeej drilling yooj yim rau kev kho thiab txhawb nqa thauj tog rau nkoj ntawm cov thee mine. Lub cev ntawm PDC pob zeb ntsia liaj qhov rooj yog ua los ntawm 45 # high-zoo carbon steel, thiab yog muab tso rau hauv lub txiav ntug nrog ib tug pob zeb diamond composite daim ntawv, uas yog welded ib tug neeg. Cov ntawv pob zeb diamond sib xyaw yog cov khoom siv tshwj xeeb superhard muaj li ntawm pob zeb diamond hmoov thiab cemented carbide nyob rau hauv qhov kub thiab txias. Nws yog siv los ua cov hniav txiav ntawm pob zeb ntsia liaj qhov rooj me ntsis, uas tsis tsuas yog muaj lub zog siab thiab siab hnav tsis kam ntawm pob zeb diamond, tab sis kuj muaj lub hardness Lub siab cuam tshuam tsis kam ntawm cov alloy ua rau nws zoo tagnrho laum me ntsis rau drilling rau hauv nruab nrab- hard pob zeb txheej hauv thauj tog rau nkoj mesh. Peb tuaj yeem muab cov qauv me me PDC thauj tog rau nkoj me ntsis thiab kuj tuaj yeem kho lub ru tsev bolt me ntsis, yog tias koj xav tau ib qho ntawm peb cov khoom, thov koj xav tiv tauj peb los ntawm Lucy@tydrillbits.com.
