Water-in-oil type mixed powder working solution

Abstract

The invention relates to a water-in-oil type mixed powder working solution which belongs to the field of special processing. The working solution comprises sorbitan monooleate, alkylphenol polyoxyethylene, rosin, machine oil, deionized water and aluminum micropowder. When in preparation, the sorbitan monooleate is added into the machine oil according to the proportion requirement and heated and stirred so that the sorbitan monooleate is dissolved into the machine oil to form a machine oil mixed solution; then, the alkylphenol polyoxyethylene and the rosin are added according to the proportionrequirement and heated and stirred so that the alkylphenol polyoxyethylene and the rosin are dissolved into the machine oil mixed solution; the deionized water is added into the mixed solution and stirred to obtain water-in-oil type emulsion; and finally, the aluminum micropowder is added into the water-in-oil type emulsion and stirred to obtain the prepared water-in-oil type mixed powder workingsolution. The water-in-oil type mixed powder working solution has the advantages of even suspension of solid particles, difficult sedimentation, difficult combustion, no pollution, low cost, safe use, high processing efficiency, high processing surface quality, and the like compared with the conventional kerosene mixed powder solution.

Description

technical field [0001] The invention belongs to the field of special processing and relates to a water-in-oil type powder mixing working fluid. Background technique [0002] At present, the working fluids commonly used in EDM at home and abroad include oil-based working fluids and water-based working fluids. [0003] Oil working fluid mainly includes kerosene, special mineral oil and synthetic oil. Kerosene has high dielectric strength, low viscosity and good fluidity, and is a commonly used working fluid in EDM. However, kerosene has low flash point, high volatility, strong odor, and poor safety, which can easily cause fire accidents. Special mineral oil can overcome some shortcomings of kerosene, but this type of oil contains a certain amount of aromatic hydrocarbons, which leads to poor safety of oil products, odor, and irritating effect on the skin. Synthetic oil mainly includes normal alkanes and isoparaffins. Since no phenolic antioxidants are added, the color of the...

AI Technical Summary

Problems solved by technology

Kerosene has high dielectric strength, low viscosity and good fluidity. It is a commonly used working fluid in EDM. However, kerosene has a low flash point, high volatility, strong odor, and poor safety, which can easily cause fire accidents.

Special mineral oil can overcome some shortcomings of kerosene, but this type of oil contains a certain amount of aromatic hydrocarbons, which leads to poor safety of oil products, odor, and irritating effect on the skin

Deionized water has the advantages of low cost, non-flammability, and no pollution to the environment. Many scholars at home and abroad have studied deionized water or deionized water with certain additives as a working fluid. At present, this type of working fluid is mainly suitable for micro electric sparks. Processing, not suitable for EDM processing, the main reason is that the breakdown voltage drop is large and the processing efficiency is low