Saggar and method for producing abrasive material through saggar

A sagger and abrasive technology, applied in the field of superhard materials, can solve the problems of deformation and cracking of sagger, affect the stability of abrasive quality, and high cost, so as to improve hydrophilicity and grinding performance, improve appearance and grinding ability, The effect of reducing the content of magnetic substances

Inactive Publication Date: 2016-04-20
ZHENGZHOU HONGJI ABRASIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Only improving the particle shape to improve the performance of abrasives is far from meeting the technological requirements of abrasive tools, and chemical coating treatment also has the disadvantages of high cost and environmental pollution. Therefore, heat treatment of abrasives has become the main method to improve the quality of abrasives. However, in the heat treatment of abrasives, the quality stability of abrasives after heat treatment is often affected by improper heat treatment process and unreasonable structure of all saggars. At the same time, all saggers are often deformed and cracked due to repeated use, resulting in resource failure. waste

Method used

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  • Saggar and method for producing abrasive material through saggar
  • Saggar and method for producing abrasive material through saggar
  • Saggar and method for producing abrasive material through saggar

Examples

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Embodiment 1

[0026] The present embodiment provides a kind of sagger, such as figure 1 As shown, the sagger includes a circular saggar base 1 and a cylindrical sagger wall 2, the cylindrical sagger wall is thin at the top and thick at the bottom, and four U-shaped ventilation holes 3 are evenly distributed on the top, and the ventilation holes 3 are uniformly distributed on the top of the sagger. The pores 3 ensure the heat convection inside and outside the sagger, so that the material is heated more evenly during the calcination process. Such as figure 2 As shown, the base of the circular sagger is an upward spherical groove. This structure enhances the anti-deformation performance of the sagger at high temperature and ensures the heat exchange of the material during high-temperature calcination. At the same time, the sagger can be reused many times, which reduces the production cost.

[0027] The present embodiment also provides a method for producing abrasive materials using the abov...

Embodiment 2

[0031] This embodiment provides a sagger, the structure of the sagger is roughly the same as that in Embodiment 1, the difference is that a layer of corundum reinforcing layer is attached to the surface of the sagger provided in this embodiment; The outer bottom of the spherical groove of the sagger base 1 is also provided with a cross-shaped reinforcing rib 4 that is flush with the sagger base 1, as image 3 with Figure 4 shown. The reserved space formed by the cross-shaped reinforcing rib 4 and the spherical groove ensures the heat and gas exchange of the materials in the upper and lower saggers, and at the same time, the cross-shaped reinforcing rib 4 strengthens the shape of the spherical surface. The strength of the shaped sagger base 1 makes the sagger still have strong deformation and crack resistance after high and low temperature calcination temperature cycles.

[0032] This embodiment also provides a method for producing abrasives using the sagger provided in this...

Embodiment 3

[0034] This embodiment provides a sagger, and the structure of the sagger is roughly the same as that of the sagger in Embodiment 1, the difference is that the outer bottom of the groove located at the sagger base 1 provided in this embodiment is also uniform. The cloth has two strip-shaped reinforcing ribs 4, such as Figure 5 with Image 6 shown.

[0035] This embodiment also provides a method for producing abrasives using the saggar provided in this embodiment. The specific steps are roughly the same as in Embodiment 1, except that in the first step, the upper and lower layers are adjacent to each other. The weight ratio of the abrasive in the sagger is 5:3; the heating rate in the second step is 200°C / h, the calcination temperature is 1200°C, and the calcination time is 2.5h.

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PUM

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Abstract

The invention provides a saggar. The saggar is provided with a saggar base (1) and a saggar wall (2), wherein the saggar base (1) is provided with an upward groove, two or more air holes (3) are uniformly formed in the top of the saggar wall (2), and therefore the ability of the saggar to resist deformation at high temperature is improved, and the heat conduction and air permeation performance of material in the saggar is improved through the structure. The invention further provides a method for producing abrasive material through the saggar. The method comprises the steps of loading the abrasive material into the saggar, stacking the saggar on a kiln car for high-temperature calcination, cooling the abrasive material to the indoor temperature and then obtaining finished products of the abrasive material. The method has the advantages that the process is simple, the energy consumption is small, and the strength and the machinability of the abrasive material are improved.

Description

[0001] The invention relates to the field of superhard materials, in particular to a sagger and a method for producing abrasives by using the sagger. Background technique [0002] Abrasives are widely used in industry, known as "industrial teeth", especially when processing high-precision or low-roughness parts or particularly hard parts, abrasives are essential. With the rapid development and structural adjustment of my country's machinery manufacturing industry, the abrasive industry has higher and higher requirements for the quality of abrasives, prompting abrasive manufacturers to continuously improve their production processes. [0003] At present, there are three main treatment technologies to improve the quality of abrasive products: improving the shape of abrasive particles, heat treatment or chemical coating. Only improving the particle shape to improve the performance of abrasives is far from meeting the technological requirements of abrasive tools, and chemical coat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D5/00
CPCF27D5/0012
Inventor 牛伟
Owner ZHENGZHOU HONGJI ABRASIVE TECH CO LTD
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