Resin grinding wheel and manufacturing method thereof

A technology of resin grinding wheel and grinding wheel, which is applied in the direction of bonding grinding wheel, manufacturing tools, metal processing equipment, etc., can solve the problems of metal corrosion, achieve the effects of preventing corrosion, improving the strength of grinding wheel, and reducing wear

Active Publication Date: 2012-02-08
NINGBO DAHUA GRINDING WHEEL
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the main component of pyrite is iron disulfide (FeS2). Since iron disulfide is easily oxidized into iron dioxide and sulfur dioxide in the air, and sulfur dioxide has strong oxidizing properties, it can form corrosive substances when combined with water in the air. The sulfurous acid in the pyrite will corrode the metal being cut or ground, which is a disadvantage of pyrite as a lubricant

Method used

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  • Resin grinding wheel and manufacturing method thereof
  • Resin grinding wheel and manufacturing method thereof
  • Resin grinding wheel and manufacturing method thereof

Examples

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Effect test

no. 1 example

[0037] The resin grinding wheel to be prepared in this embodiment is a parallel grinding wheel, such as figure 1 shown.

[0038] First, weigh raw materials with a certain weight ratio for batching. The types of raw materials and their parts by weight are 60 parts of brown corundum, 90 parts of single crystal corundum, 20 parts of green silicon carbide, 65 parts of phenolic resin powder, and phenolic resin liquid 10 parts, quicklime powder 20 parts, pyrite powder 25 parts, cryolite powder 8 parts.

[0039] Then, put abrasives such as brown corundum, single crystal corundum, and green silicon carbide into the phenolic resin solution for soaking, and stir sufficiently to make the surface of the abrasive grains fully adhere to the phenolic resin solution. After sufficient infiltration, mix phenolic resin powder, quicklime powder, pyrite powder and cryolite with brown corundum, and continue to stir until the various raw materials are fully mixed and even.

[0040] The mixed raw m...

Embodiment 2

[0044] The resin grinding wheel to be prepared in this embodiment is a cymbal type grinding wheel, such as figure 2 shown.

[0045] Similarly, batching is carried out at first, and the types of raw materials and their parts by weight are respectively 150 parts of brown corundum, 58 parts of phenolic resin powder, 16 parts of phenolic resin liquid, 10 parts of quicklime powder, 12 parts of pyrite powder, 5 parts of cryolite powder, charcoal Black 2 parts.

[0046] Then, the same mixing and sieving steps as in the first embodiment were carried out.

[0047] The forming steps for cymbal wheels are slightly different from those for parallel wheels. Similarly, for example, to mold three grinding wheels at one time, first weigh three parts of molding materials, each of which is just or slightly more than the weight required to manufacture one resin grinding wheel. In the same way, put half of the molding material in the forming mold and spread it flat, cover the reinforcement sh...

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Abstract

The invention provides a resin grinding wheel and a manufacturing method thereof, belonging to the field of grinding tools. The resin grinding wheel solves the problem that sulfur dioxide generated by pyrite mine of the traditional resin grinding wheel has corrosiveness. The resin grinding wheel comprises a grinding body and a reinforcing sheet which is arranged inside the grinding body to reinforce the rotation strength of the grinding body, wherein the grinding body comprises the following raw materials in parts by weight: 140-200 parts of abrasive material, 50-65 parts of phenolic resin powder, 10-20 parts of phenolic resin liquid, 10-20 parts of quicklime powder, 12-25 parts of pyrite mine powder and 5-10 parts of cryolite powder. The invention also provides a manufacturing method of the resin grinding wheel. According to the manufacturing method, the content of sulfur dioxide generated in the processing process is reduced by using the quicklime powder for reacting with the sulfur dioxide.

Description

technical field [0001] The invention belongs to the field of grinding tools, and relates to a resin grinding wheel and a preparation method thereof. Background technique [0002] The grinding wheel is the main tool for grinding, which is a porous object composed of abrasives, bonds and fillers. A grinding wheel that uses resin as a bond is called a resin grinding wheel. [0003] 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. In order to enhance the grinding lubrication of the resin grinding wheel during cutting or grinding to reduce wear, a certain proportion of lubricant is usually added to the filler of the forming grinding wheel, and the lubricant currently in use is basically pyrite. However, the main component of pyrite is iron disulfide (FeS2). Since iron disulfi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/28B24D7/04B24D18/00
Inventor 李保国张和平俞建成
Owner NINGBO DAHUA GRINDING WHEEL
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