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Ceramic stacked abrasive material, method for preparing same, and grinding tool

A technology for accumulating abrasives and ceramics, used in abrasives, manufacturing tools, grinding/polishing equipment, etc., to solve the problems of decreased durability and sharpness of abrasives, low porosity of abrasives, and clogging of abrasive surfaces. Achieve good self-sharpening effect and durability, stabilize surface quality and prevent clogging

Inactive Publication Date: 2016-06-15
ZHENGZHOU HONGJI ABRASIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the fine particle size, large specific surface area and high surface energy of the micropowder grade abrasive, when the fine particle size is directly used in the abrasive tool manufacturing process, the abrasive is prone to agglomeration, resulting in uneven mixing
Fine-grained abrasives are directly used in precision grinding and polishing. If the porosity of the abrasive is low or the gap between the abrasive grains is too small, the surface of the abrasive is prone to clogging, resulting in a decrease in the durability and sharpness of the abrasive.
In addition, when preparing coated abrasives, if fine-grained abrasives are used for single-layer sanding, the durability of the abrasive is relatively low; if multi-layer sanding is used, the thickness of the abrasive will increase and the flexibility will be lost.

Method used

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  • Ceramic stacked abrasive material, method for preparing same, and grinding tool
  • Ceramic stacked abrasive material, method for preparing same, and grinding tool
  • Ceramic stacked abrasive material, method for preparing same, and grinding tool

Examples

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Embodiment 1

[0029] Embodiment 1 of the present invention provides a silicon carbide ceramic stacked abrasive, a preparation method thereof, and a coated abrasive using the silicon carbide ceramic stacked abrasive. details as follows:

[0030] Get 45 mesh sieves under 40 mesh sieves, 1.5kg hollow microspheres with a wall thickness of 1 to 2 microns, 240# silicon carbide micropowder 6kg, 1kg vitrified bond powder, 1kg temporary binder water glass, wherein , the vitrified bond powder passes through a 200-mesh sieve, and consists of the following mass percentage components: ZnO7%, SiO 2 34%, Al 2 o 3 8%, H 3 BO 3 32%, Na 2 CO 3 3%, Li 2 CO 3 16%. Pour the hollow microspheres into the mixing device, start the mixing device, and then spray the temporary binder water glass on the surface of the microspheres in the form of mist. The silicon micropowder abrasive is sieved with a 100-mesh sieve, and 1 / 5 of the total amount is taken each time to make it evenly cover the surface of the micr...

Embodiment 2

[0036] Embodiment 2 of the present invention provides a corundum ceramic stacked abrasive, a preparation method thereof, and a coated abrasive using the corundum ceramic stacked abrasive. details as follows:

[0037] Take 1.7kg of hollow microspheres with a wall thickness of 3-4 microns on the 35-mesh sieve under the 25-mesh sieve, 6.5kg of brown corundum micropowder with a particle size of 180#, 1.2kg of vitrified bond powder, and 1.2kg of temporary binder paste Semen, wherein the vitrified powder passes through a 200-mesh sieve and consists of the following mass percentage components: ZnO6%, SiO 2 35%, Al 2 o 3 9%, H 3 BO 3 30%, Na 2 CO 3 4%, Li 2 CO 3 16%. Pour the hollow microspheres into the mixing device, start the mixing device, and then spray the temporary binder water glass on the surface of the microspheres in the form of mist. The silicon micropowder abrasive is sieved with a 100-mesh sieve, and 1 / 4 of the total amount is taken each time to make it evenly ...

Embodiment 3

[0042] Embodiment 3 of the present invention provides a silicon carbide ceramic stacked abrasive, a preparation method thereof, and a coated abrasive using the silicon carbide ceramic stacked abrasive. details as follows:

[0043] Get 55 mesh sieves under 50 mesh sieves, 1.4kg hollow microspheres with a wall thickness of 1 to 2 microns, 6.6kg of diamond micropowder of W7, 1.3kg vitrified bond powder, 1.3kg temporary binder water glass, Wherein, the vitrified bond powder passes through a 200-mesh sieve, and is composed of the following mass percentage components: ZnO10%, SiO 2 33%, Al 2 o 3 8%, H 3 BO 3 30%, Na 2 CO 3 3%, Li 2 CO 3 16%. Pour the hollow microspheres into the mixing device, start the mixing device, and then spray the temporary binder water glass on the surface of the microspheres in the form of mist. The silicon micropowder abrasive is sieved with a 100-mesh sieve, and 1 / 5 of the total amount is taken each time to make it evenly cover the surface of the...

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Abstract

The invention provides a ceramic stacked abrasive material. Hollow microspheres are mainly taken as the base body, and the surfaces of the hollow microspheres are evenly wrapped in a fugitive binder and a micro powder-level abrasive material and ceramic bond powder which adhere to the fugitive binder; then calcination is conducted to form the hollow spherical ceramic stacked abrasive material. The invention further provides a method for preparing the ceramic stacked abrasive material and a grinding tool using the ceramic stacked abrasive material. By the adoption of the ceramic stacked abrasive material, the thickness of a working layer of the grinding tool can be made large, so that the durability of the grinding tool is improved greatly; furthermore, large gaps exist between particles during grinding and polishing, so that blocking is effectively prevented and grinding efficiency is improved, high flatness of the surface of the working layer can be guaranteed, and surface smoothness can be guaranteed during grinding and polishing. The grinding tool also has the properties of resin binders, so that the sharpness and durability of the grinding tool are improved.

Description

technical field [0001] The invention belongs to the technical field of grinding and polishing in the material process, and in particular relates to a ceramic accumulation abrasive, a preparation method thereof and an abrasive tool. Background technique [0002] Due to the fine particle size, large specific surface area, and high surface energy of the micropowder grade abrasive, when the fine particle size is directly used in the abrasive tool manufacturing process, the abrasive is prone to agglomeration, resulting in uneven mixing. Fine-grained abrasives are directly used in precision grinding and polishing. If the porosity of the abrasive tool is low or the gap between the abrasive grains is too small, the surface of the abrasive tool is prone to clogging, resulting in a decrease in the durability and sharpness of the abrasive tool. In addition, when preparing coated abrasives, if fine-grained abrasives are used for single-layer sand planting, the durability of the abrasive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/14B24D18/00
CPCB24D3/14B24D18/00
Inventor 牛伟
Owner ZHENGZHOU HONGJI ABRASIVE TECH CO LTD
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