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Agricultural machinery rust-proof rust removal method
First, anti-rust: take 20 grams of anhydrous sodium carbonate, emulsified oil 5 grams, 1 grams of sodium Asia, 60 degrees -80 degrees hot water 1 kilogram. Mix these raw materials and stir evenly. Rinse the metal and dry it. Metal articles washed by this method will not rust for months. Another method is to heat 1 kilogram of water to 60-80 degrees, add 20 grams of anhydrous sodium carbonate, and add 5 grams of lactic acid. Stir well and use it. The rust prevention effect is also good. 2. Derusting: take 200 grams of ammonium citrate, 40 grams of sodium phosphate, 12 milliliters of sulfuric acid, 20 milliliters of formaldehyde, and 41 milliliters of 664 detergent. The above five kinds of raw materials were successively added to 800 g of clear water, mixed and stirred, and fully dissolved. When used, the surface of rusted metal is first scrubbed with a cotton gauze solution. After a layer of grayish black material is formed, it can be wiped with a clean cotton yarn. Another method of removing rust is to apply undiluted emulsified oil to the rusted surface of the metal. After half an hour, the rust can be removed by gently wiping the emulsified oil that has been heated by the cotton yarn. The above methods are suitable for rust prevention and rust removal of agricultural machinery and other metal articles.
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