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Preparation method of novel electric spark working solution

A technology of EDM and working fluid, which is applied in the field of preparation of new EDM working fluid, can solve the problems of large loss of tool electrodes and achieve the effects of small tool electrode loss, safe use, and reduced electrode loss

Inactive Publication Date: 2015-04-29
HEFEI UNIV OF TECH
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Problems solved by technology

Kerosene contains carbon elements. During processing, carbon accumulates on the surface of the tool electrode to form carbon deposit protection, while deionized water elements are composed of hydrogen and oxygen elements, which cannot form carbon deposit protection. Therefore, when deionized water is used as the working fluid, the tool electrode Greater loss

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  • Preparation method of novel electric spark working solution
  • Preparation method of novel electric spark working solution
  • Preparation method of novel electric spark working solution

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Embodiment Construction

[0026] A preparation method of a novel electric discharge working fluid, comprising the following steps:

[0027] (1) According to the volume ratio V 粉末 / V 煤油 =(0~0.9) Add the powder into kerosene and stir to make it evenly distributed;

[0028] (2) The kerosene that the above-mentioned preparation is mixed with powder is added into an appropriate amount of deionized water, and stirred to obtain an emulsion, which is the required novel electrical discharge machining fluid of the present invention (such as figure 1 shown). Including base liquid deionized water 1, kerosene droplets 2 suspended in deionized water, powder particles 3 distributed in kerosene;

[0029] 1. If the volume ratio of powder to kerosene conforms to the following formula:

[0030]

[0031] The average density of the suspension composed of kerosene and powder is the same as that of deionized water, and it can be suspended in deionized water stably and evenly; under the action of water tension, the pow...

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Abstract

The invention belongs to the field of special machining and relates to a preparation method of a novel electric spark working solution. The preparation method comprises the specific steps: adding coal into coal oil according to the volume ratio of V<powder> to V<coal oil> of (0-0.9), and stirring and uniformly distributing; adding the obtained coal oil mixed with the powder into proper amount of deionized water; and stirring to obtain emulsion, namely the needed novel electric spark working solution. According to the novel electric spark working solution provided by the invention, the coal oil is suspended uniformly and is not easy to precipitate and aggregate under the tension effect of the deionized water based on a density balance principle; the novel electric spark working solution has the advantages of no combustion, low pollution, low cost, safety in utilization, small tool electrode loss, high machining efficiency, good quality of a machined surface and the like; the suspension position of the coal oil can be controlled through adjusting the ratio and tool electrode deposited carbon protection is formed to reduce electrode loss; meanwhile, the novel electric spark working solution can be used for machining mixed powder or carrying out reinforcing treatment on the surface of a workpiece.

Description

technical field [0001] The invention relates to the field of special processing, in particular to a preparation method of a novel electric spark working fluid. Background technique [0002] Commonly used working fluids for EDM include oil-based working fluids and water-based working fluids. [0003] Oil working fluids mainly include kerosene, special mineral oil and synthetic oil, among which kerosene is widely used in EDM. Due to the high dielectric coefficient of kerosene, the pulse discharge point is small and the processed surface quality is high. However, kerosene is volatile, has a low flash point, is prone to fire accidents, and has poor safety. Kerosene contains 28-48% of alkanes due to different varieties, 20-50% or 8%-15% of aromatics, 1-6% of unsaturated hydrocarbons, and 17-44% of cyclic hydrocarbons. In addition, there are a small amount of impurities, such as sulfides (mercaptans), colloids, etc., and the sulfur content is 0.04%-0.10%. Hydrocarbons and sulf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H1/08
CPCB23H1/08B23H7/34
Inventor 常伟杰陈远龙陈振王淼裴迪常丹丹
Owner HEFEI UNIV OF TECH
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