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Sintered grinding wheel formed by silica sol gel and processing method thereof

A processing method and silica sol technology, applied in the field of grinding wheels, can solve the problems of unbearable mold life, low high-pressure production efficiency, complex mold design, etc., and achieve low mold material and processing requirements, high production efficiency, and good grinding effect Effect

Active Publication Date: 2020-12-25
山一精密工具(安徽)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of the sintered grinding wheel formed by the current mold pressure molding method, such as complex mold design, low mold life, unable to withstand high pressure, and low production efficiency, the invention provides a sintered grinding wheel formed by silica sol gel and its processing method

Method used

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  • Sintered grinding wheel formed by silica sol gel and processing method thereof
  • Sintered grinding wheel formed by silica sol gel and processing method thereof
  • Sintered grinding wheel formed by silica sol gel and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] A sintered grinding wheel formed by silica sol gel, the sintered grinding wheel is composed of a copper grinding wheel substrate and an abrasive layer that is poured, adhered and sintered on the surface of the copper grinding wheel substrate, wherein the thickness of the abrasive layer is 0.5 mm.

[0069] In terms of 100% of the raw material quality for preparing the abrasive layer, the abrasive layer is prepared using the following raw material components:

[0070]

[0071] The processing method of the sintered emery wheel of this silica sol gel molding is as follows:

[0072] (1) roughening the surface of the copper grinding wheel substrate;

[0073] (2) phenolic resin binder, 600# diamond powder are mixed uniformly, obtain the first mixture;

[0074] (3) be 30% alkaline nano-silica sol solution, polyethylene glycol accounting for 1% of total mixture quality and 2% hydroxypropyl alcohol that account for total mixture quality by accounting for 7% of total mixture ...

Embodiment 2

[0081] A sintered grinding wheel formed by silica sol gel, the sintered grinding wheel is composed of a copper grinding wheel base material and an abrasive layer that is adhered by pouring and sintered on the surface of the copper alloy grinding wheel base material, wherein the thickness of the abrasive layer is 0.5mm.

[0082] In terms of 100% of the raw material quality for preparing the abrasive layer, the abrasive layer is prepared using the following raw material components:

[0083]

[0084] The processing method of the sintered emery wheel of this silica sol gel molding is as follows:

[0085] (1) roughening the surface of the copper grinding wheel substrate;

[0086] (2) Copper powder binder, 600# diamond powder are mixed uniformly, obtain the first mixture;

[0087] (3) be 25% alkaline nano-silica sol solution, polyethylene glycol accounting for 1% of the total mixture quality and 2% hydroxypropyl alcohol that account for the total mixture quality by accounting f...

Embodiment 3

[0094] A sintered grinding wheel formed by silica sol gel, the sintered grinding wheel is composed of a vitrified grinding wheel base material and an abrasive layer that is poured, adhered and sintered on the surface of the vitrified grinding wheel base material, wherein the thickness of the abrasive layer is 0.5 mm.

[0095] In terms of 100% of the raw material quality for preparing the abrasive layer, the abrasive layer is prepared using the following raw material components:

[0096]

[0097] The processing method of the sintered emery wheel of this silica sol gel molding is as follows:

[0098] (1) roughening the surface of the vitrified grinding wheel substrate;

[0099] (2) Vitrified bond and 600# diamond powder are mixed evenly to obtain a mixture;

[0100] (3) be 25% alkaline nano-silica sol solution, polyethylene glycol accounting for 1% of the total mixture quality and 2% hydroxypropyl alcohol that account for the total mixture quality by accounting for 5% of th...

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Abstract

The invention discloses a sintered grinding wheel formed by silica sol gel and a processing method thereof. The sintering grinding wheel is composed of a grinding wheel base material and an abrasive layer which is cast and sintered on the surface of the grinding wheel base material; the grinding material layer comprises, by weight, 10%-25% of diamond powder, 70%-85% of binding agents, 1.0%-10% ofnano silica sol, 0.5%-1.0% of dispersing agents and 1.0%-2.5% of thickening agents. The processing method of the sintered grinding wheel formed by the silica sol gel does not need a superhard materialmold, the mold abrasion is small, the service life is long, the forming process is simple, and the obtained sintered grinding wheel has a good grinding effect.

Description

technical field [0001] The invention belongs to the technical field of grinding wheels, in particular to a sintered grinding wheel formed by silica sol gel and a processing method thereof. Background technique [0002] Brittle and hard materials such as sapphire and superhard ceramics are widely used in mobile phones, precision electronic components, precision optical devices and high-end watches due to their high hardness and high brittleness, but also because of their high hardness and high brittleness. Features, the grinding process is very difficult. Generally, the electroplated grinding wheel used for processing glass has low grinding efficiency and short service life when processing such superhard materials, making it difficult to use in large-scale production. [0003] The sintered grinding wheel has the characteristics of strong holding force and good wear resistance, especially suitable for processing superhard materials. However, sintered grinding wheels also fac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D18/00B24D3/34B24D3/32
Inventor 项刚
Owner 山一精密工具(安徽)有限公司