A kind of surface polishing diamond grinding disc and preparation method thereof

A surface polishing and diamond technology, which is applied in the direction of grinding/polishing equipment, metal processing equipment, abrasives, etc., can solve the problem of low processing smoothness and processing efficiency of flocking polishing discs, inability to realize diamond grinding abrasives, and failure to satisfy diamond self-sharpening force and other problems, to achieve good application prospects, good grinding performance and surface finish, and strong applicability to the working environment.

Active Publication Date: 2018-02-23
珠海大象磨料磨具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The working place of the flocking polishing disc is limited to having an aerodynamic device, and the applicability of the product is low
The power of the pneumatic tool itself is not strong. If diamond is used as the abrasive in the polishing and grinding layer, the power of the tool cannot satisfy the self-sharpening force of the diamond itself, and it is impossible to use diamond as the abrasive
Due to the lack of power of pneumatic tools, the processing smoothness and processing efficiency of flocking polishing discs are relatively low. Therefore, it is necessary to develop a new type of non-metallic surface polishing disc to adapt to the development of non-metallic materials in the direction of high efficiency, long life and ultra-precision. need

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Put 25 parts of diamond powder with a particle size of W6, 40 parts of phenolic resin and 20 parts of cryolite in a mixing pot, and stir in an airtight manner for more than 30 minutes to fully mix the materials evenly.

[0033] Select a trapezoidal mold, put the mixed material into the mold and spread it out, press it to form after flattening, the pressure is 30Mpa, the temperature is 90°C, the time for maintaining the pressure is 12s, and the trapezoidal green body is obtained by unloading the mold.

[0034] Put the green body into the kiln with a backing plate, start drying and curing from 60°C, and increase the temperature to 185°C in steps. The curing process is divided into 10 stages, and the total curing time is 30h to obtain an intermediate.

[0035] Epoxy resin is coated on the light metal substrate, the intermediates are precisely arranged on the substrate, and are cured and bonded together. The curing temperature is 120°C and the curing time is 4 hours to obtai...

Embodiment 2

[0037] Put 35 parts of diamond powder with a particle size of W10, 30 parts of phenolic resin and 15 parts of pyrite in a mixing pot, and stir in an airtight manner for more than 30 minutes to fully mix the materials evenly.

[0038] Choose a spiral mold, put the mixed material into the mold and spread it, press it to form after flattening, the pressure is 23Mpa, the temperature is 80°C, the time for maintaining the pressure is 10s, and the spiral shape green body is obtained by unloading the mold.

[0039] Put the green body into the kiln with a backing plate, start drying and curing from 60°C, and increase the temperature to 195°C in steps. The curing process is divided into 10 stages, and the total curing time is 25 hours to obtain an intermediate.

[0040] Epoxy resin is coated on the glass fiber matrix, and the intermediates are accurately arranged on the matrix, and are cured and bonded together. The curing temperature is 130°C, and the curing time is 3 hours to obtain a ...

Embodiment 3

[0042] Put 40 parts of diamond powder with a particle size of W22, 30 parts of epoxy resin and 18 parts of barite in a mixing pot, and stir in an airtight manner for more than 30 minutes to fully mix the materials evenly.

[0043] Choose a crescent-shaped mold, put the mixed material into the mold and spread it, press it to form after flattening, the pressure is 20Mpa, the temperature is 95°C, the time for maintaining the pressure is 13s, and the mold is unloaded to obtain a crescent-shaped green body.

[0044] Put the green body into the kiln with a backing plate, start drying and curing from 60°C, and increase the temperature to 175°C in steps. The curing process is divided into 10 stages, and the total curing time is 20h to obtain an intermediate.

[0045] The epoxy resin is coated on the engineering plastic substrate, and the intermediates are accurately arranged on the substrate, and are cured and bonded together. The curing temperature is 110°C, and the curing time is 5 h...

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Abstract

The invention belongs to the field of coated abrasive tools and discloses a surface polishing diamond grinding disc. A polishing and grinding layer is bonded to a basal body, and the polishing and grinding layer is prepared from the following components in parts by weight: 20-50 parts of diamond powder, 20-40 parts of bonding agent and 10-30 parts of filler. The invention further discloses a preparation method of the diamond grinding disc. According to the invention, diamond micro-powder is used as polishing and grinding abrasive, and the inherent properties of high hardness, abrasion resistance and high thermal conductivity of the diamond can greatly promote the sharpness of the abrasive tools and prolong the service life of the abrasive tools; and furthermore, electric driven tools such as an electric edge polishing machine can be mounted for polishing and grinding, the working environment applicability is extremely strong, the machining efficiency is high, and the precision is remarkably promoted in comparison with a flocking grinding disc, thus being applicable to polishing and grinding of various nonmetal materials.

Description

technical field [0001] The invention belongs to the field of coated abrasives, and relates to a surface-polished diamond grinding disc and a preparation method thereof. Background technique [0002] Diamond is one of the materials with the highest hardness known in the world. It has the characteristics of high hardness, good wear resistance, and high thermal conductivity, which are incomparable to ordinary abrasives. Diamond powder is an ideal raw material for grinding and polishing stone, ceramics, gemstones, optical glass and other high-hardness non-metallic materials. At the same time, diamond micropowder can be synthesized artificially, which solves the problem of environmental pollution and conforms to the energy-saving and environmental protection development strategy promoted by the country in the manufacturing industry. [0003] Most of the non-metallic polishing discs currently on the market are back flocking polishing discs, and the power tools used are generally ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D3/32B24D3/28B24D3/34B24D18/00
CPCB24D3/28B24D3/285B24D3/32B24D3/344B24D18/0009
Inventor 邹艳玲
Owner 珠海大象磨料磨具有限公司
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