PDC (Polycrystalline Diamond Compact) drill

The invention provides a PDC (Polycrystalline Diamond Compact) drill which comprises a drill base body, a wear-resistant coating and a PDC, wherein the drill base body is provided with a mounting end and a drilling-in end; the wear-resistant coating is arranged on the surface of the drilling-in end...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	HAN GUIYUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	The invention provides a PDC (Polycrystalline Diamond Compact) drill which comprises a drill base body, a wear-resistant coating and a PDC, wherein the drill base body is provided with a mounting end and a drilling-in end; the wear-resistant coating is arranged on the surface of the drilling-in end and provided with a flaky rotary wing protruding out of the drill base body; the thickness of the wear-resistant coating is 0.2-5mm and consists of diamond and wear-resistant alloy; and the PDC is fixed on the flaky rotary wing. Compared with the prior art, the invention improves the strength and the wear-resistant property of the drill, prolongs the service life of the drill and also reduces the integral production cost of the drill.