Diamond resin binder abrasive disc and preparation method and application thereof

A diamond and bonding agent technology, applied in metal processing equipment, grinding/polishing equipment, abrasives, etc., can solve the problems of human body and environmental pollution, easy migration, easy residue of matrix resin, etc., and achieve high product yield and dispersion of fillers Uniform, productive results

Active Publication Date: 2020-02-28
惠安宇信金刚石工具有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, in chemical polishing, a certain amount of chemical reagents such as oxalic acid and other low-molecular substances are generally added, which are easy to migrate during long-term storage, which not only reduces the stability of its polishing efficiency, but also causes a certain degree of pollution to the human body and the environment
Second, physical polishing is difficult to achieve the gloss and clarity required by the actual marble application, and the matrix resin in the grinding disc is easy to remain on the surface during polishing, resulting in atomization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] The present invention provides the preparation method of the diamond resin bonded grinding disc described in the above scheme, comprising the following steps:

[0033] mixing the preparation raw materials to obtain a mixture;

[0034] The mixture is injected into a mold for hot pressing and sintering to obtain a diamond resin bonded abrasive sheet.

[0035] The invention mixes the preparation raw materials to obtain the mixture. In the present invention, the mixing of the raw materials for preparation is preferably achieved under stirring conditions. The present invention has no special requirements on the speed and time of the stirring, as long as the uniform mixing of the raw materials can be realized.

[0036] After the mixed material is obtained, the present invention injects the mixed material into a mold for hot pressing and sintering to obtain a diamond resin bonded abrasive sheet.

[0037] Before hot pressing and sintering, the present invention preferably co...

Embodiment 1

[0043] In terms of parts by mass, 30 parts of nylon modified bisphenol A epoxy resin, 8 parts of polyetheramine curing agent (type D230), 25 parts of polycrystalline diamond micropowder with a particle size of 800 mesh, and silicon carbide with a particle size of 1000 mesh 10 parts of micropowder, 5 parts of corundum with a particle size of 800 mesh, 25 parts of talcum powder with a particle size of 1000 mesh, 5 parts of glass fiber with a particle size of 800 mesh, 3 parts of nano-silica balls with a diameter of 30nm, 1 part of KH5501 after mechanical stirring, and The above mixture is injected into the mold, and the cotton cloth with the same size as the mold is covered on the top surface of the incompletely cured abrasive tool, raised from room temperature to 120°C, kept at a heat preservation pressure (4MPa pressure) for 5 minutes, hot-pressed and sintered, and then the abrasive tool is taken out. The sheet was baked in an oven at 140° C. for 1 hour to obtain a diamond resi...

Embodiment 2

[0045] In terms of parts by mass, 25 parts of polyamide modified phenolic resin, 15 parts of acid anhydride curing agent (methyl hexahydrophthalic anhydride, MHHPA), 0.25 parts of aromatic tertiary amine curing agent (DMP-30), and the particle size number is 800 mesh polycrystalline 20 parts of diamond powder, 10 parts of silicon carbide powder with particle size number of 1000 mesh, 3 parts of white corundum with particle size number of 800 mesh, 3 parts of zirconia with particle size number of 1000 mesh, 20 parts of calcium carbonate with particle size number of 2000 mesh, carbon fiber with particle size number of 1000 mesh 5 parts of powder, 2 parts of carbon nanotubes with a diameter of 20nm, 1 part of KH5601 After mechanical stirring, the above mixture is injected into the mold by hot pressing and sintering, and the cotton cloth with the same size as the mold is covered on the top surface of the incompletely cured abrasive tool From room temperature to 120°C, heat preserva...

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Abstract

The invention provides a diamond resin binder abrasive disc and a preparation method and an application thereof and belongs to the technical field of polishing grinding apparatuses. The diamond resinbinder abrasive disc is prepared from the following raw materials in parts by mass: 20-40 parts of thermosetting resin, 4-30 parts of a curing agent, 15-30 parts of a diamond, 10-20 parts of an auxiliary grinding material, 10-30 parts of micro filler, 1-10 parts of nano filler and 1-5 parts of a coupling agent. The diamond resin binder abrasive disc is used for polishing a marble and has the advantages of being good in polishing effect, high in efficiency, environmental-friendly and safe and the like.

Description

technical field [0001] The invention relates to the technical field of polishing abrasive tools, in particular to a diamond resin bonded abrasive disc and a preparation method and application thereof. Background technique [0002] Marble generally refers to all limestones with various color patterns. Because of its strong strength, its own pattern appearance and good processing performance, it is widely used in indoor and outdoor decoration and various handicrafts. Grinding and polishing is an indispensable processing technology in the practical application of marble. [0003] Grinding and polishing discs (referred to as grinding discs) are commonly used tools in marble polishing. Grinding discs are made of superhard materials as abrasives, polymer resins as binders, adding appropriate filling materials, and have certain geometric shapes and can be applied to different grinding requirements through the process of preparation, mixing and curing. A processing tool. However,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/28B24D3/34B24D18/00
CPCB24D3/285B24D3/344B24D3/346B24D18/0009
Inventor 曾云峰邓国川
Owner 惠安宇信金刚石工具有限公司
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