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Water-base grinding fluid for on-line electrolytic grinding

A kind of grinding fluid, grinding technology

Inactive Publication Date: 2007-08-22
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The thickness of the passivation film formed on the surface of the grinding wheel by the commercially available online electrolytic grinding fluid at this stage is difficult to control, and cannot well meet the requirements of ELID grinding under different conditions. reduce
Most grinding fluids contain NaNO 2 Or chromate ion, with the continuous improvement of environmental protection requirements, these grinding fluids will no longer be suitable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Use a beaker to measure 10000ml of deionized water, pour it into a glass container, heat it to keep the temperature at 29°C to 31°C, weigh 25g of sodium molybdate, 10g of sodium carbonate, 50g of sodium silicate, 15g of borax, and sodium benzoate 30g and 1.5g of sodium chloride, under the condition of constant stirring, gradually add into water, stir until completely dissolved, then add 100ml of borate, stir and mix evenly to obtain a water-based grinding fluid for online electrolytic dressing grinding . Use this grinding fluid to sharpen the cast iron-based diamond micropowder grinding wheel. The thickness of the passivation film formed on the surface of the grinding wheel is about 10 μm, and the thickness of the passivation film is small, so it is suitable for ELID grinding of diamonds with small particle size (≤5 μm). Sharpening; the sharpening equilibrium time is about 25min, and the passivation film is formed faster; the sharpening equilibrium current is about 0.8A...

Embodiment 2

[0013] Use a beaker to measure 10000ml of deionized water, pour it into a glass container, heat it to keep the temperature at 29°C to 31°C, weigh 30g of sodium molybdate, 25g of sodium carbonate, 45g of sodium silicate, 10g of borax, and sodium benzoate 40g, sodium chloride 2g, under the condition of constant stirring, gradually add into water, stir until completely dissolved, then add 90ml of boric acid ester, stir and mix evenly to obtain a water-based grinding fluid for online electrolytic dressing and grinding. Use this grinding fluid to sharpen the cast iron-based diamond micropowder grinding wheel. The thickness of the passivation film formed on the surface of the grinding wheel is about 25 μm; the sharpening equilibrium time is about 32 minutes, and the formation speed of the passive film is relatively fast; 0.7A.

Embodiment 3

[0015] Use a beaker to measure 10000ml of deionized water, pour it into a glass container, heat it to keep the temperature at 29°C to 31°C, weigh 40g of sodium molybdate, 40g of sodium carbonate, 35g of sodium silicate, 20g of borax, and sodium benzoate 60g, sodium chloride 1.5g, under the condition of constant stirring, gradually add into water, stir until completely dissolved, then add 80ml of boric acid ester, stir and mix evenly to obtain a water-based grinding fluid for online electrolytic dressing and grinding . Use this grinding fluid to sharpen the cast iron-based diamond micropowder grinding wheel. The thickness of the passivation film formed on the surface of the grinding wheel is about 50 μm; the sharpening equilibrium time is about 35 minutes, and the formation speed of the passive film is relatively fast; 0.5A.

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Abstract

The present invention discloses one kind of water-base grinding fluid for on-line electrolytic grinding, and belongs to the field of precise grinding fluid technology. The water-base grinding fluid consists of sodium molybdate 0.2-0.6 wt%, sodium carbonate 0.1-0.5 wt%, sodium silicate 0.3-0.8 wt%, borax 0.1-0.4 wt%, sodium benzoate 0.2-1.2 wt%, sodium chloride 0.01-0.1 wt%, water for the rest and boric acid ester in 0.7-1.2 vol% of water. The present invention has the advantages of environment friendship, low cost, high use performance and simple preparation process.

Description

technical field [0001] The invention relates to a water-based grinding fluid for on-line electrolytic dressing and grinding, which belongs to the grinding fluid technology for mechanical ultra-precision grinding. Background technique [0002] Electrolytic In-process Dressing (ELID for short) grinding technology has been valued and applied in the field of precision and ultra-precision machining for its remarkable advantages since its appearance in the 1980s. The basic components of the ELID grinding system include: ELID special grinding machine, metal-based micro-powder grinding wheel, high-frequency pulse power supply and ELID special electrolytic grinding fluid. With the improvement of mechanical processing technology and electronic technology, the grinding machines, grinding wheels and power supplies produced at this stage can already meet the requirements of ELID technology, and because of the special requirements of ELID technology for grinding fluid, the special grindin...

Claims

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Application Information

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IPC IPC(8): C09K3/14
Inventor 任成祖武震华刘春明
Owner TIANJIN UNIV
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