Water-soluble discharging medium compound for electrospark wire-electrode cutting

Abstract

The invention discloses a water-solubility discharging dielectric combination for electrospark wire electrode cutting, comprising the following components: 20 to 46 percent weight of polyalkyl glycol and / or polyatomic alcohol, 2 to 8 percent weight of alkylol amine, 26 to 40 percent weight of water-solubility anti-rust agent, 2 to 4 percent weight of non-ionic surface active agent, 3 to 6 percentweight of anionic surface active agent, 1 to 2 percent weight of thickening agent solution, 0.2 to 1.0 percent weight of anti-foam agent, 0.01 to 0.04 percent weight of copper alloy corrosion inhibitor, 0.2 to 0.5 percent weight of mildew inhibitor, 0.5 to 1.0 percent weight of water quality stabilizing agent and equilibrium amount of distilled water; moreover, all components are simply mixed to obtain the combination. The combination can be used for a long time with zero emission or little emission; meanwhile, the invention does not cause pollution, toxin and harm to work environment and thenature and is nonirritating to human body.

Description

A water-soluble discharge medium composition for electric discharge wire electrode cutting technical field The invention relates to a discharge medium composition for electric discharge wire electrode cutting, in particular to a water-soluble discharge medium composition for electric discharge wire electrode cutting. Background technique CNC high-speed wire EDM wire electrode cutting machine is one of the main types of electric processing machine tools. The working fluid used in it is the medium of pulse discharge. Process metrics have a big impact. Low-speed wire EDM uses pure water as the discharge medium. Before the high-speed wire electric discharge cutting, the emulsion containing mineral oil was generally used, but because the mineral oil in the emulsion cracked and polymerized under the high temperature of the electric spark to form a viscous black sludge, there were many problems in use: 1. Pollution of the working environment; 2. Black sludge is produced during ...

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Problems solved by technology

Before the high-speed wire electric discharge cutting, the emulsion containing mineral oil was generally used, but because the mineral oil in the emulsion cracked and polymerized under the high temperature of the electric spark to form a viscous black sludge, there were many problems in use: 1. Pollution of the working environment; 2. Black sludge is produced during the cutting process, causing the working fluid to fail quickly. It must be replaced with a new working fluid after about 10 days of use, and the discharge is frequent, causing environmental pollution; 3. Solvent oil must be used for the sludge on the workpiece Cleaning will not only cause harm to the operator's skin, but also cause fire hazards at the work site; 4. Oil sludge will cause poor chip removal and poor cooling, making it difficult to cut high temperature resistant and sticky materials or the cutting efficiency is very low

The December 2004 issue of "Lubricating Oil" disclosed the environment-friendly water-based electric discharge wire cutting metalworking fluid developed by Fang Jianhua et al. However, due to the lack of effective anti-rust agent components in its formula, there is rust prevention of machine tools and workpieces. problem, and because there are a large amount of electrolytes such as inorganic salts in the composition, the resistivity of the working fluid is low, resulting in low cutting efficiency

Fábio N. published a review of water-based dielectric fluid in Journal of Materials Processing Technology 149 (2004) 341-346, but only for the research on forming electrodes, and did not disclose the research on electric discharge cremation cutting of wire electrodes

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