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Thermosetting phenolic resin abrasive cutting wheel and preparation method thereof

A technology for cutting grinding wheels and phenolic resin, which is applied in the direction of bonding grinding wheels, manufacturing tools, metal processing equipment, etc., can solve the problems of reducing the sharpness of grinding wheels, metal corrosion, burrs on the section, etc., and achieve improved heat dissipation, increased bonding strength, and high The effect of sharpness

Active Publication Date: 2020-04-10
郑州九天工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the process of cutting metal by the grinding wheel, in order to increase the abrasion and lubrication of the grinding wheel and reduce the wear of the grinding wheel, pyrite is generally added to the raw material of the grinding wheel. The main component of pyrite is iron disulfide, adding disulfide Although iron can reduce the wear of the grinding wheel, iron disulfide is easily oxidized by oxygen in the air to produce sulfur dioxide and ferric oxide. Sulfur dioxide meets water to form sulfurous acid. Burrs and other phenomena appear on the section, and at the same time, the ferric oxide is separated from the grinding wheel and falls down, making the grinding wheel form pores and reducing the sharpness of the grinding wheel

Method used

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  • Thermosetting phenolic resin abrasive cutting wheel and preparation method thereof
  • Thermosetting phenolic resin abrasive cutting wheel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A thermosetting phenolic resin cutting wheel, its raw material ratio is shown in Table 1.

[0046] S1. Raw material A ingredients

[0047] Under the condition of constant stirring, mix microcrystalline corundum and brown corundum evenly, then add cryolite, manganese aluminum spinel, boron carbide, silicon dioxide superfine powder, alumina superfine powder, gypsum, mix well, and then Add a wetting agent and mix evenly to obtain raw material A;

[0048] Among them, Al in microcrystalline corundum 2 o 3 The weight content of the microcrystalline corundum is 95.5%, and the gradation of microcrystalline corundum is: 15-10mm 4kg, 10-8mm 9kg, 8-5mm 5kg; Al in brown corundum 2 o 3 The weight content of brown corundum is 95%, and the gradation of brown corundum is: 10-8mm 8kg, 8-5mm 16kg, 5-3mm 22kg, 3mm-0mm 9kg; Na in cryolite 3 AlF 6 The weight content is 97%, the particle size is less than or equal to 0.074mm; MnAl in manganese aluminum spinel 2 o 4 The weight content...

Embodiment 2

[0056] A thermosetting phenolic resin cutting wheel, its raw material ratio is shown in Table 1.

[0057] S1. Raw material A ingredients

[0058] Under the condition of constant stirring, mix microcrystalline corundum and brown corundum evenly, then add cryolite, manganese aluminum spinel, boron carbide, silicon dioxide superfine powder, alumina superfine powder, gypsum, mix well, and then Add a wetting agent and mix evenly to obtain raw material A;

[0059] Among them, Al in microcrystalline corundum 2 o 3 The weight content of the microcrystalline corundum is 95.5%, and the gradation of microcrystalline corundum is: 15-10mm 5kg, 10-8mm 13kg, 8-5mm 7kg; Al in brown corundum 2 o 3 The weight content of brown corundum is 95%, and the gradation of brown corundum is: 10-8mm 6kg, 8-5mm 14kg, 5-3mm 18kg, 3mm-0mm 7kg; Na in cryolite 3 AlF 6 The weight content is 97%, the particle size is less than or equal to 0.074mm; MnAl in manganese aluminum spinel 2 o 4 The weight conten...

Embodiment 3

[0068] A thermosetting phenolic resin cutting wheel, its raw material ratio is shown in Table 1.

[0069] S1. Raw material A ingredients

[0070] Under the condition of constant stirring, mix microcrystalline corundum and brown corundum evenly, then add cryolite, manganese aluminum spinel, boron carbide, silicon dioxide superfine powder, alumina superfine powder, gypsum, mix well, and then Add a wetting agent and mix evenly to obtain raw material A;

[0071] Among them, Al in microcrystalline corundum 2 o 3 The weight content of the microcrystalline corundum is 95.5%, and the gradation of microcrystalline corundum is: 15-10mm 4kg, 10-8mm 10kg, 8-5mm 6kg; Al in brown corundum 2 o 3 The weight content of brown corundum is 95%, and the gradation of brown corundum is: 10-8mm 8kg, 8-5mm 16kg, 5-3mm 21kg, 3mm-0mm 8kg; Na in cryolite 3 AlF 6 The weight content is 97%, the particle size is less than or equal to 0.074mm; MnAl in manganese aluminum spinel 2 o 4 The weight conten...

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Abstract

The invention relates to a thermosetting phenolic resin abrasive cutting wheel and a preparation method thereof, and belongs to the technical field of abrasive cutting wheel production. The abrasive cutting wheel comprises a grinding body and a reinforcing mesh embedded in the grinding body, and the grinding body is prepared from, by weight, a raw material A and a raw material B; the raw materialA comprises microcrystalline corundum, brown fused alumina, cryolite, manganese alumina spinel, boron carbide, ultrafine powder, gypsum and a wetting agent; the raw material B is thermosetting phenolic resin powder, and the addition amount of the thermosetting phenolic resin powder is 20-30% of the total weight of the raw material A. According to the abrasive cutting wheel, through cooperation ofthe raw materials, the abrasive cutting wheel has high sharpness, high grinding efficiency and high rotation strength, and the service life of the abrasive cutting wheel is prolonged. According to thepreparation method of the abrasive cutting wheel, abrasive cutting wheel preparation is stable, the bonding strength between the raw materials is improved, and the use effect of the abrasive cuttingwheel is improved.

Description

technical field [0001] The invention relates to the technical field of cutting grinding wheel production, more specifically, it relates to a thermosetting phenolic resin cutting grinding wheel and a preparation method thereof. Background technique [0002] Grinding wheel is the main tool for grinding. It is a porous substance composed of abrasives, fillers, and binders. It is widely used in metallurgy, construction, railways and other fields. It is mainly used for cutting and grinding steel pipes, shaped pipes, and steel bars. At present, in the process of cutting metal with the grinding wheel, in order to increase the abrasion and lubrication of the grinding wheel and reduce the wear of the grinding wheel, pyrite is generally added to the raw material of the grinding wheel. The main component of pyrite is iron disulfide, adding disulfide Although iron can reduce the wear of grinding wheels, iron disulfide is easily oxidized by oxygen in the air to produce sulfur dioxide and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D5/12B24D5/10B24D3/28B24D3/34B24D18/00
CPCB24D3/285B24D3/344B24D5/10B24D5/12B24D18/0009
Inventor 李蒙
Owner 郑州九天工贸有限公司
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