Aluminum oil three cleaning methods, which is more appropriate?

Release time:

2020-04-14

Aluminum alloy degreasing is an important process in the surface treatment of aluminum alloy parts. If the degreasing of the aluminum alloy surface is not clean, the future processing work will be difficult. The pollutants to be removed on the surface of the parts include: various oil stains, residual polishing paste, hand marks, oil seals, surface wax, etc. contaminated by aluminum alloy parts during stamping, turning, milling and other processing processes. Oil removal methods can be divided into solvent oil removal, chemical oil removal, electrochemical oil removal and so on. Solvent degreasing generally use oil cleaning agent, oil cleaning agent to have the best effect, the following to introduce the difference between these methods of oil removal.
1. solvent degreasing
Organic solvents have a strong dissolution effect on both saponified oil and non-saponified oil, and can remove the marking symbols and residual polishing paste on the surface of the workpiece. The main object is non-saponifiable oil pollution.
Organic solvent degreasing methods include scrubbing method, dipping method, spray method, ultrasonic cleaning method, etc. Among them, the use of ultrasonic cleaning oil cleaning agent, with high efficiency, oil clear effect is good, especially for some of the complex shape, there are fine holes, blind holes and oil removal requirements of the workpiece is more effective, is currently commonly used organic solvent cleaning method.
Features: in addition to the oil speed, generally will not corrode the metal, but in addition to heavy oil is not very thorough, but also through chemical or electrolytic methods to further clean the treatment.
2. chemical oil removal
Chemical deoiling is used to remove invisible oil, surface dust, trace anti-rust layers, and some small amounts of pollutants formed during transportation or production. Chemical deoiling includes alkaline chemical deoiling and acidic chemical deoiling.
1. Alkaline chemical degreasing
Alkaline degreasing is one of the most commonly used methods. The principle of degreasing is to achieve the purpose of removing these two types of oil stains by means of the saponification of the saponifiable oil stains by the saponification of the lye and the emulsification of the surfactant to the non-saponifiable oil stains.
2. Acid chemical degreasing
Acid degreasing treatment is also a widely used degreasing method. Acid degreasing agents are generally composed of inorganic or organic acids, surfactants, corrosion inhibitors and penetrants.
Features: do not need to heat, in the case of normal temperature can have a good degreasing effect. If heated to about 40 ℃ can significantly improve the degreasing effect; normal temperature degreasing cylinder can be used in hard PVC, heating degreasing should be made of PP.
3. electrolytic oil removal
Aluminum alloy degreasing treatment generally rarely uses alkaline electrolytic degreasing, because this type of cleaning treatment has a greater erosion effect on the surface of the component, and the equipment investment is also large.
Features: greater activity and purity. Electrolytic deoiling is divided into cathode deoiling and anode deoiling. Most use cathode degreasing.
Ruisbo suggested that aluminum alloy should be degreyed. It is best to use oil cleaning agent from regular manufacturers without damaging aluminum materials. RuisboIndustryCleaning agentManufacturer!

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