High-precision cleaning process with particulate matter requirement

Abstract

The invention discloses a high-precision cleaning process with a particulate matter requirement. The high-precision cleaning process comprises the steps of primary vacuum ultrasonic cleaning, secondary vacuum ultrasonic cleaning, primary steam bath washing and vacuum drying, secondary steam bath washing and vacuum drying, fixed-point high-pressure spray washing, preliminary ultrasonic rinsing, secondary ultrasonic rinsing and vacuum drying, and hydrocarbon cleaning agents in the steps of vacuum ultrasonic cleaning, steam bath washing and vacuum drying are all naphthene type cleaning agents with the molecular formula being CnH2n. Machining oil of a workpiece is cleaned through the similarity and intermiscibility principle of the hydrocarbon cleaning agents, fine burrs and particulate matters in product machining holes and on surfaces are washed away through fixed-point high-pressure washing, surface extension of the particulate matters and a product is lowered through pure water so that the particulate matters can be completely separated from the surface of the product, the particle size of the particulate matters on the surface of the workpiece obtained after compound cleaning is smaller than 200 microns, the cleaning process is environmentally friendly, the cost is low, and operation is simple.

Description

technical field [0001] The invention relates to the field of workpiece surface cleaning, in particular to a high-precision cleaning process requiring particulate matter. Background technique [0002] At present, fine particles and oil stains are produced on the surface of workpieces after processing, and the particles and oil stains need to be removed in the subsequent processing process. At present, for this type of workpieces, the cleaning process is ultrasonic cleaning-ultrasonic cleaning-hot air Circular drying mainly realizes the removal of fine particles and oil stains through the principle of emulsification, penetration and solubilization. The particle size after cleaning by this process is >200um. Since the cleaned particles will still affect the subsequent processing procedures, it is easy to cause The decline of the yield rate, and at the same time due to the emulsification of the surfactant, it is easy to generate waste water, and the treatment of waste water w...

AI Technical Summary

Problems solved by technology

[0002] At present, fine particles and oil stains are produced on the surface of workpieces after processing, and the particles and oil stains need to be removed in the subsequent processing process. At present, for this type of workpieces, the cleaning process is ultrasonic cleaning-ultrasonic cleaning-hot air Circular drying mainly realizes the removal of fine particles and oil stains through the principle of emulsification, penetration and solubilization. The particle size after cleaning by this process is >200um. Since the cleaned particles will still affect the subsequent processing procedures, it is easy to cause The decline of the yield rate, and at the same time, due to the emulsification of the surfactant, it is easy to generate waste water, and the treatment of waste water will also increase the production cost

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