How to clean parts of oil?

Mud wash, take sand - free yellow soil, with water and paste yellow mud. Clean up the greasy spots on the farm equipment briefly first, and then apply good yellow mud (apply more to the greasy and thick places). Yellow mud after drying, there will be cracks, oil will be adsorbed on the yellow mud, and then clean the yellow mud with water. Follow this method to repeat the operation 1 times, the effect of removing oil is better.

Cold washing, that is, to clean kerosene, gasoline, diesel as cleaning agent. Put the agricultural machinery parts into the oil basin with a screen, brush with a wire brush, the oil will sink into the bottom of the basin through the screen. The cleaned parts are left to dry naturally. Need to remind is, such as cleaning friction sheet oil, to use a little gasoline scrub clean; Oil resistant rubber parts and leather parts of the oil, can not use oil cleaning agent. When cleaning, we should wash relatively clean, smooth and smaller parts first, and then clean larger parts with heavy oil on the surface. The oil can also be divided into several oil basins, divided into initial washing, secondary washing and fine washing several steps for cleaning.

Hot washing, that is, cleaning after heating with a solution of alkali and emulsifier. Because oil, gear oil, etc. can not be dissolved in alkali solution, can only form emulsion, so to add emulsifier (sodium silicate, soap, etc.) in alkali solution. The role of emulsifier is to penetrate into the oil layer, weaken the binding force between oil and metal, and promote the oil film to break and separate. The solution should be heated to 70℃ ~ 80℃ for hot washing, and the parts should be soaked in the solution. Agricultural machinery parts should be washed with hot water of 60℃ ~ 80℃ after cleaning, and then dry. The solution formula commonly used to remove oil stains from steel and cast iron parts is: caustic soda 0.75%, sodium carbonate 5%, trisosodium phosphate 1%, soap 0.15%, and the rest is water. And aluminum parts cleaning can not use caustic soda solution, and use sodium carbonate solution.