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Diamond grinding wheel for ceramic grinding and preparation method thereof

A diamond grinding wheel and diamond technology, which is applied in the direction of grinding/polishing equipment, grinding equipment, metal processing equipment, etc., can solve the problems of difficult grinding, low work efficiency, and small cutting capacity, so as to reduce processing costs, The effect of improving production efficiency and taking into account wear resistance

Active Publication Date: 2012-02-01
树熊新材料科技(河源)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, conventional diamond grinding wheels are still used for grinding zirconia ceramics. Due to the characteristics of zirconia ceramics, conventional diamond grinding wheels have always had the following problems in grinding zirconia ceramics: one is when zirconia ceramics are processed and fired. The deformation is large, which makes post-grinding difficult; while zirconia ceramics have high hardness, and the cutting amount of the diamond grinding wheel is small during grinding. Generally, the cutting amount of the plane grinding is 0.02-0.04 mm each time, and it needs repeated grinding. The work efficiency is very low; the zirconia structure ceramic has good toughness, and the diamond grinding wheel is easy to block the grinding wheel during grinding, requiring frequent shutdowns and dressing the grinding wheel, which is time-consuming and laborious, which seriously restricts the development of zirconia structure ceramic materials. Application and Development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1 of the present invention comprises the following steps:

[0020] 1. Each component is prepared and weighed according to the following weight percentage: 18.7% diamond abrasive, 20% polyimide resin, 13% Cu powder, 9% Co powder, 8% Al 2 o 3 , 3% rare earth lanthanum (La), 0.7% carbon black, 27.6% Cr 2 o 3 ;

[0021] 2. Put the prepared powder into the mixer and mix for 1 hour to make it fully uniform;

[0022] 3. Evenly put the mixture into the mold cavity of the model SDC150#, then put the mold into the press for pressing; heat the mold at the same time;

[0023] 4. Mold heating and pressurization process: first increase the pre-pressure to 5 MPa, set the heating temperature of the upper and lower plates of the press to 250°C, release the pressure when the mold temperature reaches 110°C, and exhaust once, then continue to heat and pressurize to 8 MPa, when the mold temperature reaches 230°C, hold the pressure for 2 minutes and release the pressure;

...

Embodiment 2

[0026] Embodiment 2 of the present invention comprises the following steps:

[0027] 1. Each component is prepared and weighed according to the following weight percentage: 27% diamond abrasive, 14% polyimide resin, 8% Cu powder, 14% Co powder, 3% Al 2 o 3 , 6% rare earth lanthanum (La), 1.2% carbon black, 26.8% Cr 2 o 3 ;

[0028] 2. Put the prepared powder into the mixer and mix for 1 hour to make it fully uniform;

[0029] 3. Evenly put the mixture into the mold cavity of the model SDC240#, then put the mold into the press for pressing; heat the mold at the same time;

[0030] 4. Mold heating and pressurization process: first increase the pre-pressure to 3 MPa, set the heating temperature of the upper and lower plates of the press to 250°C, release the pressure when the mold temperature reaches 115°C, and exhaust once, then continue to heat and pressurize to 6 MPa, when the mold temperature reaches 235°C, hold the pressure for 4 minutes and release the pressure;

[...

Embodiment 3

[0033] Embodiment 3 of the present invention comprises the following steps:

[0034] 1. Each component is prepared and weighed according to the following weight percentage: 23% diamond abrasive, 18% polyimide resin, 10% Cu powder, 11% Co powder, 6.5% Al 2 o 3 , 5% rare earth cerium (Ce), 1% carbon black, 25.5% Cr 2 o 3 ;

[0035] 2. Put the prepared powder into the mixer and mix for 1 hour to make it fully uniform;

[0036] 3. Put the mixture evenly into the mold cavity of the model SDC80#, then put the mold into the press for pressing; heat the mold at the same time;

[0037] 4. Mold heating and pressurization process: first increase the pre-pressure to 4 MPa, set the heating temperature of the upper and lower plates of the press to 250°C, release the pressure when the mold temperature reaches 110°C, and exhaust once, then continue to heat and pressurize to 6 MPa, when the mold temperature reaches 240°C, hold the pressure for 3 minutes and release the pressure;

[003...

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PUM

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Abstract

The invention discloses a diamond grinding wheel for ceramic grinding and a preparation method thereof. The diamond grinding wheel consists of the following components in percentage by weight: 18.7 to 27 percent of diamond abrasive, 14 to 20 percent of polyimide resin, 8 to 13 percent of Cu powder, 9 to 14 percent of Co powder, 3 to 8 percent of Al2O3, 3 to 6 percent of rare earth, 0.7 to 1.2 percent of carbon black and the balance of Cr2O3. The preparation process for the diamond grinding wheel comprises the following steps of: (1) fully mixing the components; and (2) putting the mixture into a mold, heating, pressing, curing, and machining. The diamond grinding wheel can effectively overcome the defects of the conventional diamond grinding wheel, improving feed amount to 0.1-0.8mm each time during grinding, is difficult to block, has wear resistance of a grinding wheel, improves the production efficiency of zirconium oxide structural ceramic grinding, and greatly reduces the machining cost of zirconium oxide structural ceramic.

Description

technical field [0001] The invention relates to the technical field of diamond grinding wheel manufacture, in particular to a diamond grinding wheel suitable for producing zirconia ceramic grinding. Background technique [0002] Zirconia structural ceramics have excellent comprehensive properties such as high hardness, high strength, high toughness, and extremely high wear resistance. They are gradually replacing many materials, and their application fields are becoming more and more extensive. At present, conventional diamond grinding wheels are still used for grinding zirconia ceramics. Due to the characteristics of zirconia ceramics, conventional diamond grinding wheels have always had the following problems in grinding zirconia ceramics: one is when zirconia ceramics are processed and fired. The deformation is large, which makes post-grinding difficult; while zirconia ceramics have high hardness, and the cutting amount of the diamond grinding wheel is small during grindi...

Claims

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Application Information

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IPC IPC(8): B24D3/00B24D18/00
Inventor 曾宪明孙爱强杨志高
Owner 树熊新材料科技(河源)股份有限公司
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