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Compound abrasive material grinding wheel and preparation method thereof

A composite abrasive and grinding wheel technology, which is applied in the field of abrasive tools and abrasive materials, can solve the problems of workpiece damage, uneven distribution of coating particles, easy material removal during processing, etc., to achieve rapid cooling and grinding heat, low processing roughness, The effect of increasing the chip space

Active Publication Date: 2019-02-26
ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of industry, more and more stringent requirements are put forward for the performance of grinding tools. Electroplated abrasives are widely used in instrument processing because of their unique advantages. However, there are still many deficiencies in the existing electroplated abrasives. , for example, the combination of composite coating is not high, it is easy to strip off during processing, the particles in the coating are unevenly distributed, the content is low, the surface defects are large, and it is easy to cause damage to the processed parts
[0003] The invention patent with the application publication number CN104120484A discloses a method for preparing an electroplated diamond tool with a new composite coating. The diamond tool prepared by this method is sequentially coated with an electroplated nickel-cobalt layer and an upper sand layer from the inside to the outside of the substrate (the layer contains diamond abrasives), thickened coating (the layer contains WC micropowder, SiC micropowder), the diamond tool layer still has the problem of stress mismatch during processing, which will cause the processing force between layers Deformation or even falling off occurs when the coating is thickened, and WC micropowder and SiC micropowder may have insufficient holding force in the thickened coating, resulting in shedding
In addition, when the thickened coating is exhausted, the upper sand layer may cause damage to the workpiece
[0004] Further, in the prior art, for the electroplating superhard abrasive tool manufacturing process, affected by the suspension and dispersion of abrasives, the sanding process of composite abrasives is relatively complicated, and the concentration and uniformity are not easy to control
The preparation method in the invention patent with application publication number CN104120484A uses a circulation pump to circulate the plating solution to keep WC micropowder and SiC micropowder from settling. However, even if the circulation pump is used to circulate the plating solution, the particle distribution in the coating will Uneven, the performance of the finished product cannot meet the processing requirements

Method used

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  • Compound abrasive material grinding wheel and preparation method thereof
  • Compound abrasive material grinding wheel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The composite abrasive grinding wheel in the present embodiment comprises a grinding wheel base body and a composite abrasive layer and is arranged on a nickel layer between the base body and the composite abrasive layer, and the composite abrasive layer has such as figure 1 In the structure shown, the abrasive layer includes auxiliary abrasive 2 and main abrasive 1; the auxiliary abrasive is 1 μm SiC; the main abrasive is 10 μm diamond.

[0044] The mass ratio of SiC to diamond is 1:10.

[0045] The thickness of the abrasive layer is: 50 μm.

[0046] The base of the grinding wheel is an aluminum alloy base.

[0047] Preparation of the electroplating solution used in the preparation process of this embodiment: Nickel sulfamate, nickel chloride, boric acid, and sodium dihexyl sulfosuccinate are sequentially added to the plating tank and dissolved with deionized water until the total volume is 10L; the concentration of nickel sulfamate is 300g / L, the concentration of ni...

Embodiment 2

[0055] The composite abrasive grinding wheel in this embodiment comprises a grinding wheel substrate and a composite abrasive layer and a nickel layer arranged between the substrate and the composite abrasive layer. The abrasive layer includes auxiliary abrasives and main abrasives; the auxiliary abrasive is 5 μm diamond; the main abrasive is 50 μm of diamonds.

[0056] The mass ratio of 5 μm diamond to 50 μm diamond is 1:20.

[0057] The thickness of the abrasive layer is: 200 μm.

[0058] The base of the grinding wheel is made of stainless steel.

[0059] Preparation of the electroplating solution used in the preparation process of this embodiment: Nickel sulfamate, nickel chloride, boric acid, and sodium dihexyl sulfosuccinate are sequentially added to the plating tank and dissolved with deionized water until the total volume is 10L; the concentration of nickel sulfamate is 400g / L, the concentration of nickel chloride is 5g / L, the concentration of boric acid is 40g / L, and...

Embodiment 3

[0067] The composite abrasive grinding wheel in this embodiment comprises a grinding wheel substrate and a composite abrasive layer and a nickel layer arranged between the substrate and the composite abrasive layer. The abrasive layer includes auxiliary abrasives and main abrasives; the auxiliary abrasive is 10 μm Al 2 o 3 ; The main abrasive is 100μm diamond.

[0068] Al 2 o 3 The mass ratio to diamond is 1:10.

[0069] The thickness of the abrasive layer is: 400 μm.

[0070] The base of the grinding wheel is made of stainless steel.

[0071] Preparation of the electroplating solution used in the preparation process of this embodiment: Nickel sulfamate, nickel chloride, boric acid, and sodium dihexyl sulfosuccinate are sequentially added to the plating tank and dissolved with deionized water until the total volume is 10L; the concentration of nickel sulfamate is 650g / L, the concentration of nickel chloride is 6g / L, the concentration of boric acid is 50g / L, and the concen...

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Abstract

The invention relates to a compound abrasive material grinding wheel and a preparation method thereof, and belongs to the technical fields of abrasive materials and grinding apparatuses. The compoundabrasive material grinding wheel comprises a matrix and a compound abrasive material layer, wherein the compound abrasive material layer comprises an auxiliary abrasive material and a main abrasive material; the auxiliary abrasive material comprises one or a combination of Al2O3, SiC and diamond; the grain size of the auxiliary abrasive material is 1-10 [mu]m; the main abrasive material comprisesdiamond with the grain size of 10-100 [mu]m; and the mass ratio of the auxiliary abrasive material to the main abrasive material is (1-4):20. Through the arrangement of different abrasive materials and different grain sizes of the abrasive materials in the abrasive material layer, the overall structure of the abrasive material layer is stable, the mechanical strength is high, abrasive material grains are evenly distributed in the abrasive material layer, the holding degree on the abrasive material grains by the abrasive material layer is high, the phenomenon that the material falls off does not occur when a workpiece is processed, the processing roughness is low, and the grinding wheel is good in sharpness, long in service life, and has a broad application prospect in the field of grindingapparatuses.

Description

technical field [0001] The invention relates to a composite abrasive grinding wheel and a preparation method thereof, belonging to the technical field of abrasive materials and abrasive tools. Background technique [0002] With the development of industry, more and more stringent requirements are put forward for the performance of grinding tools. Electroplated abrasives are widely used in instrument processing because of their unique advantages. However, there are still many deficiencies in the existing electroplated abrasives. , For example, the combination of composite coating is not high, it is easy to strip off during processing, the particles in the coating are unevenly distributed, the content is low, and the surface defects are large, which is easy to cause damage to the processed parts. [0003] The invention patent with the application publication number CN104120484A discloses a method for preparing an electroplated diamond tool with a new composite coating. The dia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/00B24D3/34B24D18/00C25D15/00
CPCB24D3/00B24D3/346B24D18/009C25D15/00
Inventor 王永宝祝小威王战刘建双
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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