MEASUREMENT OF THE VISCOSITY OF A LUBRICANT USED IN HYDRAULIC VIBRATION DAMPERS
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSONAFB OH
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In selection of the vibration dampers for a long column of drill pipe, the most acceptable chemical compound is considered as that with highest viscosity, V. Such a compound is nigrol, a transmission lubricant mixed with kanifol, a resin.
- Lubricants and Hydraulic Fluids