5 common cleaning methods for mechanical parts
Most mechanical parts they must be cleaned before assembly, assembly and after assembly, and some parts are also cleaned as needed after the trial run. The purpose of parts cleaning is to remove the parts surface residue of various contaminants, such as cast sand, iron chips, rust, abrasives, oil and dust, etc..
The cleaning of the parts after cleaning will directly affect the quality of installed printing and engineering machine minus service life. Therefore, the cleanliness of zero is an important part of the engineering machine city assembly non-academic. The following carefully introduced the main contaminants of machine parts and common cleaning methods for your reference.
The main pollutants in the machining process of mechanical parts are the following three
1. Water-soluble pollutants
In the process of processing, storage and transportation, the workpiece surface hand sweat, dust and fingerprints, polymers, inorganic salts, polyols, soluble emulsifiers and other metallurgical fluids after evaporation
2. Saponified oily pollutants
Lubricating materials used in metal cutting and forming processes contain large amounts of animal and vegetable oils or modified products. This kind of animal and vegetable oils are composed of lipid-proof acid and glycerol of all kinds of mixture, can be tolerated in a variety of organic solvents. At the same time, such oils can be saponified with alkali reaction.
3. Non-saponifiable oily pollutants
Cutting oil, forming slip, pickling passivation paste, metal anti-inducing oil, quenching oil, etc. Products used for metal processing contain a large amount of mineral oil, polymer, oily additives and sintered dirt. During processing, machine tool leakage of guide oil, hydraulic oil and other equipment oil can also contaminate the workpiece.
Common cleaning methods
1.Scrubbing cream
Put the parts into the container with diesel oil, kerosene or other cleaning solution, and clean with cotton gauze or brush. This method is easy to operate, simple equipment, but low efficiency, suitable for a single small batch of small parts. Generally should not use gasoline, because it is fat-soluble, will endanger human health, and easy to cause fire.
2. Boil and wash
The prepared solution with the cleaned parts together into a suitable size with steel plate welded into the cleaning pool, the pool under the furnace heated to 80 ~ 90 ° C, boiling and washing 3 ~ 5 minutes
3. Jet washing
Will have a certain pressure and temperature of the cleaning solution sprayed on the surface of the parts to remove oil stains. This method of cleaning effect, high productivity, but not prepared for the complex, suitable for less complex shape, surface grease more parts cleaning
4. Vibration cleaning
The parts to be cleaned into the vibration cleaning machine cleaning basket or cleaning grid, immersed in the cleaning solution. The vibration of the washing machine simulates the role of manual rinsing and cleaning fluid to remove the chemical effect of oil stains
5. Ultrasonic cleaning
The chemical effect of cleaning agent and ultrasonic cleaning machine “ultrasonic cavitation effect” interaction, so as to remove oil stains cleaning parts, must be based on the parts of the material, structural characteristics, pollution and cleaning requirements, the correct choice of cleaning agent and cleaning method
When cleaning the parts, the cleaning agent and cleaning method must be correctly selected according to the material, structural characteristics, pollution and cleaning requirements of the parts.
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