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Large outer diameter resin grinding wheel and preparation method thereof

A technology of resin grinding wheel and large outer diameter, which is applied in the direction of bonded grinding wheel, manufacturing tools, metal processing equipment, etc., and can solve the problem of reducing the number of repeated use of large outer diameter resin grinding wheel, easy chipping or breakage of large outer diameter resin grinding wheel, and the use of Shorten the service life and other problems, achieve the effect of improving the strength self-sharpening and cutting efficiency, enhancing the hardness and prolonging the service life

Inactive Publication Date: 2019-11-26
NO 2 GRIND WHEELS FACTORY & SHENZHEN UNION CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the large outer diameter resin grinding wheel used in the market generally has the problems of high brittleness and low bending strength, which makes the large outer diameter resin grinding wheel easy to chip or break during use, and finally reduces the repeated use of the large outer diameter resin grinding wheel. Greatly reduced, shortened service life

Method used

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  • Large outer diameter resin grinding wheel and preparation method thereof
  • Large outer diameter resin grinding wheel and preparation method thereof
  • Large outer diameter resin grinding wheel and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0047] Example 1: A resin grinding wheel with a large outer diameter, the formula components and their contents are shown in Table 1. Wherein the phenolic resin powder is a thermoplastic phenolic resin, and the phenolic resin liquid is a thermosetting phenolic resin. Brown corundum is made by mixing brown corundum sand 30# and brown corundum sand 36# with a ratio of parts by weight of 2:1. The preparation method of the large outer diameter resin grinding wheel includes a mixing process and a molding process, and the mixing process includes the following steps:

[0048] A1. Mixing premix: Take the material according to the formula, mix and stir white corundum, brown corundum sand 30# and brown corundum sand 36# at the same time to form an abrasive, and add phenolic resin liquid and carbon black to the abrasive , mixed uniformly to form a premix;

[0049] A2. Mix coarse sand: Potassium sulfate, cryolite and phenolic resin powder are mixed and stirred evenly to form a mixed pow...

Embodiment 2

[0055] Embodiment 2: A resin grinding wheel with a large outer diameter. The difference between this embodiment and Embodiment 1 lies in that the content of the formula components is different and the process parameters in the preparation method are different. The specific component contents of the formula of this embodiment are shown in Table 1, and the process parameters in the preparation method are shown in Table 3.

Embodiment 3

[0056] Embodiment 3: A resin grinding wheel with a large outer diameter. The difference between this embodiment and Embodiment 1 lies in that the content of the formula components is different and the process parameters in the preparation method are different. The specific component contents of the formula of this embodiment are shown in Table 1, and the process parameters in the preparation method are shown in Table 3.

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Abstract

The invention discloses a large outer diameter resin grinding wheel and a preparation method thereof, and relates to the technical field of grinding wheel manufacturing and production. The formula includes the following components of, in parts by weight, 480 - 520 parts of white fused alumina, 2400 - 2600 parts of brown fused alumina, 280 - 320 parts of a binding agent, 95 - 105 parts of cryoliteand 135 - 145 parts of potassium sulfate, wherein the binding agent comprises phenolic resin powder and phenolic resin liquid, and the weight part ratio of the phenolic resin powder to the phenolic resin liquid is 2 : 1 - 3 : 1. The preparation method of the large outer diameter resin grinding wheel comprises a material mixing process and a forming process, wherein the material mixing process comprises the following steps of A1, mixing and preparing a pre-mixing material; A2, mixing a coarse grinding material; and A3, screening the coarse grinding material; and the forming process comprises the following steps of B1, paving a forming material; B2, carrying out pressurizing and forming; and B3, carrying out drying and hardening. The large outer diameter resin grinding wheel has the technical effects of high bending strength and good grinding performance.

Description

technical field [0001] The invention relates to the technical field of grinding wheel manufacturing and production, in particular to a resin grinding wheel with a large outer diameter and a preparation method thereof. Background technique [0002] Resin grinding wheel is a grinding wheel made of resin, which has the characteristics of high strength, low heat resistance, good self-sharpening, easy production, short process cycle, etc. It is widely used in rough grinding, rough grinding, cutting and free grinding, such as grinding Steel ingots, deburring of castings, etc., often used as cutting discs, heavy-duty grinding wheels, polishing wheels, etc. Resin grinding wheels are widely used in mechanical metallurgy, construction, military industry, railway construction and other fields. They are mainly used for cutting and grinding general metal materials such as steel pipes, steel bars, and steel bars. [0003] Resin grinding wheels are generally divided into ordinary resin gr...

Claims

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Application Information

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IPC IPC(8): B24D5/12B24D3/28B24D3/00B24D3/34B24D18/00
CPCB24D3/00B24D3/285B24D3/344B24D3/346B24D5/12B24D18/0009
Inventor 李凯韦球翁朝阳许涛
Owner NO 2 GRIND WHEELS FACTORY & SHENZHEN UNION CO
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