Grinding cup

The present invention relates to a grinding cup (10') for grinding buttons of a rock drilling bit. The invention also relates to a wear part (14) for the grinding cup. The grinding cup (10 @ ) has a passageway for fluid being so disposed and arranged relative to an axis (18) of rotation of the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	BERGQVIST, ARNE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	DRESSING OR CONDITIONING OF ABRADING SURFACES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS FIXED CONSTRUCTIONS GRINDING MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS POLISHING TOOLS FOR GRINDING, BUFFING, OR SHARPENING TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention relates to a grinding cup (10') for grinding buttons of a rock drilling bit. The invention also relates to a wear part (14) for the grinding cup. The grinding cup (10 @ ) has a passageway for fluid being so disposed and arranged relative to an axis (18) of rotation of the grinding cup (10 @ ) that a downstream end of the passageway disposed in a cavity (20) is displaced radially outwardly relative to the axis (18).