When using a Manual Seeder, the attachment will produce dirt or oil stains if it is used for a long time. If it is not completely removed, it will have a bad impact on the use of the machine. But how do we clean it up? How can we effectively remove dirt from the manual planter? Next, follow Hongxiang Machinery to understand.
- Descaling method
When removing the scale at the cast iron cylinder. The hydrochloric acid with a concentration of 8-10% and a corrosion inhibitor equivalent to 3% of hydrochloric acid are heated, and injected into the water jacket at about 50-60 ° C. After soaking for 2 ~ 3h, the corrosion inhibitor is released. Then wash with potassium dichromate aqueous solution, or inject 5% caustic soda aqueous solution into the water jacket to neutralize the residual acid solution, and then rinse with water repeatedly.
Remove scale from the cooling system. The main component of these accessories is silicate, so add 2 ~ 3% caustic soda solution to the cooling system, wait for the locomotive to drive for 1/2 day, and then rinse it again and again with clean water until it is removed.
Second, the oil pollution removal method
Remove animal and vegetable oils and mineral oils from the surface of the parts and remove them with alkaline solution. A small amount of emulsifier can be added to the lye. After heating, wash or inject with pressure, and then rinse the residual liquid on the parts surface with warm water.
Remove oil from precision parts. The alkaline solution has a corrosive effect on high-pressure oil pumps, fuel injectors and other precision parts, so the oil stains in these parts should be cleaned with organic solvents (including gasoline, kerosene, alcohol, etc.).
Remove oil from aluminum alloy parts. Alkaline solution has a strong corrosion effect on aluminum alloy, but organic solution is expensive and not suitable for large-area use, so the oil stain of these components can be removed with aluminum alloy cleaning solution. The specific preparation method is potassium dichromate plus a small amount of water glass or sodium carbonate solution, heated to 60 ℃ -70 ℃ and used.
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