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Vitrified bond and preparation method thereof, grinding wheel

A technology of ceramic binder and mixture, which is applied in the manufacture of tools, metal processing equipment, grinding/polishing equipment, etc. It can solve the problems of time-consuming and laborious sintering temperature, long sintering process, and lack of universality. Fast speed, easy to promote and apply in industrialization, good holding effect

Inactive Publication Date: 2020-04-14
ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the sintering process of abrasive tools takes a long time and is time-consuming and laborious, which directly leads to an increase in cost, and the existing vitrified bond can only be used for specific abrasives due to its specific sintering temperature, which is not universal. At the same time, the adjustment of the sintering temperature is also time-consuming and laborious.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The vitrified bond of this embodiment is made of the following raw materials in weight percentage: Portland cement clinker 44%, lime powder 16%, gypsum powder 22%, clay 18%.

[0031] The preparation method of the vitrified bond of the present embodiment may further comprise the steps:

[0032] 1) Take the raw materials according to the proportion and put them into a ball mill for 5 hours, and then pass through a 300-mesh sieve for 3 times to obtain the mixture;

[0033] 2) Calcinate the mixture at 1350°C for 5 hours, then put it into a ball mill for 8 hours, put it into a vibrating sieve with a 1500-mesh screen for sieving, and take the powder under the sieve to obtain a vitrified bond.

[0034] The particle size of the vitrified bond obtained in this example is within 10 μm. The vitrified bond was prepared by adding water (the mass ratio of vitrified bond to water was 4:1), and then pressed into a Φ20*6.4 cylinder and a 41*5*6 sample strip, and then naturally air-drie...

Embodiment 2

[0039] The vitrified bond of this embodiment is made of the following raw materials in weight percentage: Portland cement clinker 42%, lime powder 18%, gypsum powder 18%, clay 22%.

[0040] The preparation method of the vitrified bond of the present embodiment may further comprise the steps:

[0041] 1) Take the raw materials according to the proportion and put them into a ball mill for 5 hours, and then pass through a 300-mesh sieve for 3 times to obtain the mixture;

[0042] 2) Calcinate the mixture at 1350°C for 5 hours, then put it into a ball mill for 8 hours, put it into a vibrating sieve with a 1500-mesh screen for sieving, and take the powder under the sieve to obtain a vitrified bond.

[0043]The particle size of the vitrified bond obtained in this example is within 10 μm. The vitrified bond was prepared by adding water (the mass ratio of vitrified bond to water was 4:1), and then pressed into a cylinder of Φ20*6.4 and a sample strip of 41.3*5*6, and air-dried for 24...

Embodiment 3

[0048] The vitrified bond of this embodiment is made of the following raw materials in weight percentage: Portland cement clinker 38%, lime powder 22%, gypsum powder 16%, clay 24%.

[0049] The preparation method of the vitrified bond of the present embodiment may further comprise the steps:

[0050] 1) Take the raw materials according to the proportion and put them into a ball mill for ball milling for 3 hours, then pass through a 300-mesh sieve for 3 times to obtain the mixture;

[0051] 2) Calcinate the mixture at 1350°C for 5 hours, then put it into a ball mill for 5 hours, put it into a vibrating sieve with a 1500-mesh screen for sieving, and take the powder under the sieve to obtain a vitrified bond.

[0052] The particle size of the vitrified bond obtained in this example is within 10 μm. The vitrified bond was prepared by adding water (the mass ratio of vitrified bond to water was 4:1), and then pressed into a Φ20*6.4 cylinder and a 40*5*6 sample strip, and then natur...

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Abstract

The invention relates to a ceramic binder, a preparation method thereof and a grinding wheel, and belongs to the field of ceramic binders for ultra-hard grinding tools. The ceramic binder is prepared from the following raw materials in percentage by weight: 36-45% of silicate cement clinker, 15-23% of lime powder, 18-26% of gypsum powder and 12-25% of clay. The ceramic binder provided by the invention is mixed with water in a proper ratio during use, fast in forming speed, and capable of being subjected to natural air drying or accelerated drying without the need of a sintering process in the subsequent process, thus the various problems of cracking, foaming and the like of a traditional ceramic binder during a sintering process are avoided; and the ceramic binder is suitable for many grinding materials, high in holding force for the grinding materials, and universal.

Description

technical field [0001] The invention belongs to the technical field of abrasive materials, and in particular relates to a vitrified bond, a preparation method thereof, and a grinding wheel. Background technique [0002] Superhard material abrasives are widely used in the field of mechanical processing, such as: the finishing of automobiles, electronics, refrigeration, tools, LED and other industries, especially diamond and cubic boron nitride bonded grinding wheels, in the current grinding technology occupy a dominant position. Abrasives made of ceramic bond have the characteristics of strong grinding ability, high durability, and good shape retention during grinding. The processed parts have high dimensional accuracy, good self-sharpening performance, and long dressing intervals. And suitable for various coolants. [0003] The current vitrified bonded grinding wheel is mainly sintered in a certain shape by mixing superabrasives, vitrified bond and filler. The patent whos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D3/14B24D3/34B24D18/00
CPCB24D3/14B24D3/342B24D18/0009
Inventor 许本超闫宁邵俊永
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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