SU692714A2 - Working medium for electro-erosion working of metals - Google Patents

Description

I

The invention relates to the composition of working environments for electrical erosion processing of metals and their alloys and can be applied in many industries, in particular, in mechanical engineering, turbine construction, and aircraft construction.

According to the main author. St. No. 568525, a known working environment for the electrical erosion treatment of metals, which includes kerosene, mineral oil and an additive, was a compound from the group of alkyl phenols of barium and zinc 1.

The use of this medium reduces the wear of the electrode-tool by up to 2.5 times, compared to processing in a pure hydrocarbon environment, however, this reduction in wear of the electrode-tool is not enough.

The purpose of the invention is to reduce the wear of the electrode tool for EDM processing.

This is achieved by the fact that the working environment according to ed. St. No. 568525 additionally contains organoelement compounds containing calcium or strontium or calcium and strontium in an amount of from 0.1 to 20 w / o.

As such elemental compounds, for example, strontium naphthenate or dialkyl methylene bisphenol calcium or their mixtures can be used. If the known medium reduces the wear of the electrotool by up to 2.5 times, then the proposed medium gives a 10-14 fold decrease in the wear of the electrode tool.

Working media were tested, which are mixtures of hydrocarbon liquids with barium alkyl phenols and containing the following substances as additives:

Strontium naphthenate

Dialkyl-methylene-bis-phenoie of calcium and calcium. Judging by the nature of the tested additives, the use of other organoelement compounds containing calcium and strontium will also reduce the consumption of electric tools.

Example}. A mixture of kerosene with industrial oil in the ratio of 2.5: 1.5 and various additives is tested on the wall of LKZ-157 with a generator ShGI - 125/100 M.