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Metal base diamond grinding wheel and preparing method thereof

A diamond and fund technology is applied in the field of metal-based diamond grinding wheels and their preparation, which can solve the problems that diamond particles cannot be uniformly dispersed, segregation is easy to occur in the mixing process, and the grinding performance of metal-based diamond grinding wheels is affected.

Inactive Publication Date: 2017-09-22
WUHU ZHEXIN NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned prior art, the purpose of the present invention is to overcome the large difference in particle size and density between diamond particles and metal bond particles in the prior art, and segregation is easy to occur during the mixing process, resulting in the non-uniform dispersion of diamond particles in the metal-based diamond grinding wheel. , which seriously affects the grinding performance of the metal-based diamond grinding wheel, thereby providing a metal-based diamond grinding wheel that can uniformly disperse the diamond particles and improve the grinding performance of the grinding wheel and its preparation method

Method used

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  • Metal base diamond grinding wheel and preparing method thereof
  • Metal base diamond grinding wheel and preparing method thereof

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preparation example Construction

[0021] The invention provides a kind of preparation method of metal-based diamond grinding wheel, wherein, described preparation method comprises:

[0022] 1) Premixing of raw materials: mixing diamond-like materials and metal materials to obtain premixed materials;

[0023] 2) Abrasive coating: the premix prepared in step 1) is subjected to micro-nano particle shaping and coating to obtain composite particles;

[0024] 3) Forming and sintering: the composite particles prepared in step 2) are pressed and then sintered to obtain a metal-based diamond grinding wheel.

[0025] The above-mentioned design mixes the diamond-like material and the metal material and performs micro-nano particle shaping and coating operation, and then performs pressing and sintering, so that the diamond-like material can be evenly dispersed inside the prepared metal-based diamond grinding wheel, thereby improving the production efficiency. The grinding efficiency and service life of the metal-based di...

Embodiment 1

[0041] First, 300g of 2000-mesh diamond powder, 60g of dispersant, 1800g of 400-mesh copper powder and 300g of 400-mesh tin powder were premixed with a high-speed mixer for 5 minutes at 1480r / min to obtain a premix; then 2000g of the premix was put into the micro In the nanoparticle shaping and coating equipment, process (ie, react) at a speed of 3000r / min for 10 minutes, and discharge for 3 minutes to obtain composite particles. Finally, the composite particles were shaped and sintered to obtain a metal-based diamond grinding wheel A1 with evenly dispersed diamond-like particles.

Embodiment 2

[0043]First, 300g of 2000-mesh nickel-plated diamond powder, 60g of dispersant, 1800g of 400-mesh copper powder and 300g of 400-mesh zinc powder were premixed with a high-speed mixer for 5 minutes at 1480r / min to obtain a premix; then 2000g of the premix was put into In the micro-nano particle shaping and coating equipment, the composite particles were obtained by processing at a speed of 3000r / min for 10 minutes and discharging for 3 minutes. Finally, the composite particles were molded and sintered to obtain a metal-based diamond grinding wheel A2 with evenly dispersed diamond-like particles.

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Abstract

The invention discloses a metal base diamond grinding wheel and a preparing method thereof. The preparing method comprises the steps that firstly, raw material pre-mixing is conducted, a diamond type material and a metal material are mixed, and a pre-mixed material is prepared; secondly, grinding material wrapping is conducted, the pre-mixed material prepared in the first step is subjected to micro nano particle shaping wrapping, and composite particles are prepared; and thirdly, forming sintering is conducted, and after the composite particles prepared in the second step are pressed, sintering is conducted, and the metal base diamond grinding wheel is prepared. By means of the above technical scheme, after the diamond type material and the metal material are mixed, micro nano particle shaping wrapping operation is conducted, then pressing and sintering are conducted, the diamond type material can be evenly scattered in the prepared metal base diamond grinding wheel, accordingly, the grinding efficiency of the prepared metal base diamond grinding wheel is improved, and the service life of the prepared metal base diamond grinding wheel is prolonged. Meanwhile, by adoption of the preparing method, the material mixing time can be greatly shortened, the overall production time is shortened, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the field of production and preparation of abrasive tools, in particular to a metal-based diamond grinding wheel and a preparation method thereof. Background technique [0002] In the field of precision manufacturing and fine processing, metal-based diamond grinding wheel is a commonly used precision grinding wheel, and its grinding performance is restricted by the uniformity of the dispersion of abrasive-diamond particles inside the abrasive tool. In the prior art, in the manufacturing process of the metal-based diamond grinding wheel, diamond or cubic boron nitride and metal binder particles are usually mixed together, and then filmed and hot-pressed. However, due to the large difference in particle size and density between diamond particles and metal bond particles, segregation is easy to occur during the mixing process, resulting in non-uniform dispersion of diamond particles in the metal-based diamond grinding wheel, which...

Claims

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Application Information

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IPC IPC(8): B24D3/10B24D18/00B22F1/02B22F3/02B22F3/10
CPCB22F3/02B22F3/10B24D3/10B24D18/0009B22F1/16
Inventor 任冬寅高博王伟
Owner WUHU ZHEXIN NEW ENERGY
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