BIT FOR BLASTHOLE DRILLING

FIELD: mining, more specifically, bits for blasthole drilling in rocks. SUBSTANCE: bit includes wings provided with hard alloy inserts and shank. Edges are made in form of equidimensional rectilinear sections. Points of edge bending are located on flat curve convex towards face, particularly, on arc...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PROKUSHENKO S.I, DVORNIKOV L.T, VECHUZHANIN D.S, KALININ V.V, POLYNTSEV N.A
Format:	Patent
Sprache:	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:	FIELD: mining, more specifically, bits for blasthole drilling in rocks. SUBSTANCE: bit includes wings provided with hard alloy inserts and shank. Edges are made in form of equidimensional rectilinear sections. Points of edge bending are located on flat curve convex towards face, particularly, on arch circumscribing the circumference edge. EFFECT: simplified bit design. 1 dwg