Inicio > Term: screwfeed
screwfeed
A system of gears, ratchets, and friction devices, or some combination of these parts, in the swivel head of a diamond drill, which controls the rate at which a bit is made to penetrate the rock formation being drilled. When controlled by a feed gear, the bit maintains the same penetration rate per revolution regardless of drill-stem revolutions per minute.
- Parte del discurso: noun
- Industria/ámbito: Minería
- Categoría: Minería general; Mineral mining
- Government Agency: USBM
0
Creador
- ed.young
- 100% positive feedback
(Milwaukee, United States)