| Abstrakt: |
In the present work, an attempt has been made to develop the indigenous formulation for metalworking lubricants by replacing mineral oils partially with nonedible industrial oils like rapeseed and karanja oil. Metalworking formulations consist of vegetable oil, mineral oil, an emulsifier and commercial additives for better performance. Nonedible vegetable oils such as karanja and rapeseeds are renewable, biodegradable and cheaper than synthetic fluids. The constituent vegetable oils and mineral oils were evaluated for physicochemical characteristics and blended as per the saponification value and viscosity requirements of the reference oils. The so formulated oils are taken as 5 oilinwater emulsion and tested for lubricity, load bearing capacity, particle size distribution, wear test, weld load test and plateout test. Performance of all formulated oils was compared with that of the reference oils, and optimized to meet the market requirements. Copyright © 2008 John Wiley & Sons, Ltd. |
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