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A kind of formula of elastic grinding disc and its processing method

An elastic and abrasive technology, applied in metal processing, metal processing equipment, abrasives, etc., can solve the problems of low surface accuracy of the processed workpiece, decreased safety performance of elastic abrasives, and damage to the internal structure of elastic abrasives, etc., to achieve guarantee Uniformity of inside and outside organization, improvement of polishing feel and comfort, and improvement of polishing performance

Active Publication Date: 2018-11-06
东莞市金利威磨料磨具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, with the rapid development of my country's aviation and aerospace industry, key components such as bearings of aero-engines have higher and higher requirements for polishing precision, while the current domestic elastic abrasives generally have low durability and poor flexibility , the maximum bendable angle is small, and the surface precision of the processed workpiece is not high
Moreover, most of the domestically produced elastic abrasive discs need to go through a flexing or softening process to obtain relative flexibility. The flexing or softening process will cause certain damage to the internal structure of the elastic abrasive disc, causing the safety of the elastic abrasive disc. Performance drop

Method used

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  • A kind of formula of elastic grinding disc and its processing method

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Comparison scheme
Effect test

Embodiment 1

[0048] see figure 1 , in the embodiment of the present invention, a formula of an elastic abrasive disc, comprising a fine material layer 2 and a coarse material layer 1 compounded up and down,

[0049] The raw materials of the coarse material layer 1 are composed by weight: 60 parts of 80-mesh SG abrasive, 15 parts of 80-mesh high-temperature calcined brown corundum, 25 parts of 60-mesh white corundum, 2 parts of liquid phenolic resin, 0.5 part of liquid nitrile rubber, 26 parts of 325-mesh powdered phenolic resin, 1 part of 325-mesh decolorized and dewaxed shellac powder, 2 parts of 325-mesh diamond powder, 0.1 part of nano-scale fumed silica, 2 parts of 400-mesh magnesium oxide powder, 3 parts of 600-mesh titanium dioxide 1 part of 800 mesh phthalocyanine green;

[0050] Wherein, the viscosity of the liquid phenolic resin is 200mPa·s (25°C), the addition of the liquid nitrile rubber remains unchanged according to the liquid phenolic resin:liquid nitrile rubber=4:1, the SG ...

Embodiment 2

[0063] see figure 1 , in the embodiment of the present invention, a formula of an elastic abrasive disc, comprising a fine material layer 2 and a coarse material layer 1 compounded up and down,

[0064] The raw materials of the coarse material layer 1 are composed by weight: 50 parts of 80-mesh SG abrasive, 20 parts of 80-mesh high-temperature calcined brown corundum, 30 parts of 60-mesh white corundum, 4 parts of liquid phenolic resin, 1 part of liquid NBR, 23 parts of 325-mesh powdered phenolic resin, 2 parts of 325-mesh decolorized and dewaxed shellac powder, 5 parts of 400-mesh diamond powder, 0.5 parts of nano-scale fumed silica, 1 part of 500-mesh magnesium oxide powder, 1.5 parts of 800-mesh titanium dioxide , 0.6 parts of 800 mesh phthalocyanine green;

[0065] Wherein, the viscosity of the liquid phenolic resin is 350mPa·s (25°C), the addition of the liquid nitrile rubber remains unchanged according to the liquid phenolic resin:liquid nitrile rubber=4:1, the SG abras...

Embodiment 3

[0078] see figure 1 , in the embodiment of the present invention, a formula of an elastic abrasive disc, comprising a fine material layer 2 and a coarse material layer 1 compounded up and down,

[0079] The raw materials of the coarse material layer 1 are composed by weight: 40 parts of 80-mesh SG abrasive, 25 parts of 80-mesh high-temperature calcined brown corundum, 35 parts of 60-mesh white corundum, 6 parts of liquid phenolic resin, 1.5 parts of liquid NBR, 18 parts of 400-mesh powdered phenolic resin, 3 parts of 400-mesh decolorized and dewaxed shellac powder, 8 parts of 400-mesh diamond powder, 1 part of nano-scale fumed silica, 0.5 part of 600-mesh magnesium oxide powder, 0.5 part of 800-mesh titanium dioxide , 0.2 part of 1000 mesh phthalocyanine green;

[0080] Wherein, the viscosity of the liquid phenolic resin is 500mPa·s (25°C), the addition of the liquid nitrile rubber remains unchanged according to the liquid phenolic resin:liquid nitrile rubber=4:1, the SG abra...

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Abstract

The invention discloses a formula of an elastic grinding piece. The formula comprises a fine material layer and a thick material layer compounded up and down; the thick material layer comprises the raw materials of SG abrasives, high-temperature calcined corundum, white corundum, liquid phenolic resins, liquid butyronitrile rubber, powder-shaped phenolic resins, decolored and dewaxed lac powder, diamond powder, nanoscale gas-phase silicon dioxide, magnesium oxide powder, titanium white powder and phthalein green; and the fine layer material comprises the raw materials of corundum, white corundum, liquid phenolic resins, liquid butyronitrile rubber, powder-shaped phenolic resins, decolored and dewaxed lac powder, potassium fluoborate, nanoscale gas-phase silicon dioxide, magnesium oxide powder, titanium white powder and phthalein green. The prepared elastic grinding piece needs no flexible bending and softening, is excellent in polishing hand feel, breaks no edges, is high in durability, is excellent in flexibility, can reach the biggest bending angle of 52 degrees, is high in adaptability, can satisfy the demands on such precise machining as finish grinding and polishing in the bearing industry, and is high in surface precision of machined workpieces.

Description

technical field [0001] The invention relates to the technical field of metal polishing tool products, in particular to a formula of an elastic grinding disc and a processing method thereof. Background technique [0002] Due to its good flexibility, self-sharpening, and high bonding strength, elastic abrasive discs of resin grinding wheels are widely used in fine grinding and polishing in aerospace, bearings, molds, shipbuilding, automobiles, building materials, and even non-metallic fields. In recent years, with the rapid development of my country's aviation and aerospace industry, key components such as bearings of aero-engines have higher and higher requirements for polishing precision, while the current domestic elastic abrasives generally have low durability and poor flexibility , the maximum bendable angle is small, and the surface precision of the processed workpiece is not high. Moreover, most of the domestically produced elastic abrasive discs need to go through a fl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D18/00B24D99/00B24D3/20B24D3/00B24D3/34
CPCB24D3/00B24D3/20B24D3/342B24D3/346B24D18/0009B24D99/005
Inventor 陈新强
Owner 东莞市金利威磨料磨具有限公司
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