Water-borne aluminum foil working fluid

Abstract

The invention provides water-borne aluminum foil stamping working fluid with low viscosity. The working fluid comprises the following components by weight: 0.05-2% of alkylolamide, 0-4% of alkylol amine, 0.05-2% of a polyethylene glycol type nonionic surfactant, 0-0.1% of a defoaming agent and the balance of water. The working fluid has good adaptability and clearable feature to an aluminum foil, is suitable for such processing as high-speed stamping, rolling and the like to the aluminum foil, can replace mineral oil-based volatile lubricating oil used in the aluminum fin type heat exchanger processing, can meet the lubricating requirement during the aluminum foil is processed into a fin, and can also achieve a minimal residual amount on the surface of the aluminum foil, so that a cleaning procedure need not be added with, the bright and clean surface of the aluminum foil is maintained and the quality of a heat exchanger is not changed, the production energy consumption is reduced, and the discharge of organic matters is decreased. The working fluid can be dried at room temperature, a high-temperature drying procedure is canceled, so that the production energy consumption is reduced, and the discharge of volatile organic matters, waste water and waste liquor is decreased.

Description

technical field [0001] The invention belongs to the technical field of lubricants, and relates to a low-viscosity water-based processing fluid for processing aluminum (including aluminum alloy) foils. technical background [0002] The heat exchange of the refrigeration and freezing system is realized through the aluminum fin heat exchanger, and the aluminum fin is made of aluminum (including aluminum alloy) foil through stamping, stretching, perforation, flanging and other processes. When the aluminum foil is processed, the surface needs to be sprayed with lubricating oil to ensure the smooth processing of the aluminum foil into fins and protect the mold. After the aluminum fins are assembled into a heat exchanger, it is necessary to completely remove the lubricating oil remaining on the surface of the aluminum foil, because the presence of oil will increase the hydrophilic angle on the surface of the aluminum foil and reduce the efficiency of the heat exchanger. [0003] B...

AI Technical Summary

Problems solved by technology

If the conventional water-based metalworking fluid is directly used in the aluminum fin heat exchanger, the high viscosity will cause the aluminum foil to be sticky and the sheet will not fall smoothly, and more surface residue will affect the cleanliness and use effect of the aluminum foil

The processing fluid remaining on the surface of the aluminum foil after stamping will enter the heat exchange tube during the sheet threading and tube expansion process, resulting in poor quality of the heat exchanger

If the cleaning process is added, the discharge treatment of the cleaning waste will increase the cost or cause environmental pollution

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