Preparation method of high-strength ceramic grinding wheel binding agent with lepidolite waste residues as main raw materials

A ceramic grinding wheel, the main raw material technology, applied in abrasives, manufacturing tools, metal processing equipment and other directions, can solve the problem of low efficiency, and achieve the effect of reducing the cost of raw materials, reducing the decomposition temperature, and high activity

Pending Publication Date: 2022-02-25
JIANGXI GUANYI ABRASIVES CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the efficiency of lithium extraction by the sulfate method is not high, and there are generally about 1.0-2.0wt% lithium oxide residue in the lepidolite waste residue, so there is still use value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take 10 parts of lepidolite waste residue, 2 parts of fluorite, 1 part of quartz, 2 parts of albite, and 0.2 part of fly ash, mix them evenly, grind them through a 120-mesh standard sieve, put them into a corundum crucible, and keep warm at 1420 ° C for 2 After making it melt and homogenize for an hour, pour it into water and quench to obtain glass slag, dry the glass slag and grind it through a 300-mesh standard sieve to obtain high-activity glass powder; take 10 parts of the above-prepared glass powder and pass a 120-mesh standard Sieve 2 parts of kaolin, 0.15 parts of yellow dextrin powder, mix evenly, add 4.5 parts of water and continue stirring until uniform, add 4.5 times of corundum abrasive, mix evenly, pour into a mold and shape under 45 MPa axial pressure. Place the formed grinding wheel body in a kiln to raise the temperature to 950 °C at a rate of 5 °C / min and hold it for 3 hours. After cooling with the furnace, the obtained ceramic grinding wheel has a bendi...

Embodiment 2

[0023] Take 10 parts of lepidolite waste residue, 1.5 parts of fluorite, 2 parts of quartz, 1 part of albite, and 0.5 part of fly ash, mix them evenly, grind them through a 100-mesh standard sieve, put them into a corundum crucible, and keep warm at 1470 ° C for 2.5 After melting and homogenizing for several hours, pour into water to quench to obtain glass slag, dry the glass slag and grind it finely through a 350-mesh standard sieve to obtain high-activity glass powder. Take 10 parts of glass powder prepared above, 4 parts of kaolin through a 120-mesh standard sieve, 0.2 parts of yellow dextrin powder, mix well, add 5.2 parts of water and continue stirring until uniform, add 4 times the amount of silicon carbide abrasive, and mix well Pour into the mold and form under 30 MPa axial pressure. Put the formed grinding wheel body in a kiln to raise the temperature to 900°C at a rate of 3°C / min and hold it for 5 hours. After cooling with the furnace, the obtained ceramic grinding w...

Embodiment 3

[0025] Take 10 parts of lepidolite waste residue, 1 part of fluorspar, 2 parts of quartz, 1.5 parts of albite, and 0.4 part of fly ash, mix them evenly, grind them through an 80-mesh standard sieve, put them into a corundum crucible, and keep warm at 1500 ° C for 1 After melting and homogenizing for several hours, pour into water to quench to obtain glass slag, dry the glass slag and grind it finely through a 320-mesh standard sieve to obtain high-activity glass powder. Take 10 parts of the glass powder prepared above, 1 part of kaolin through a 120-mesh standard sieve, 0.3 parts of yellow dextrin powder, mix well, add 3 parts of water and continue stirring until uniform, add 6 times the amount of silicon carbide abrasive, and mix well Pour into the mold and form under the axial pressure of 50 MPa. Place the formed grinding wheel body in a kiln to raise the temperature to 950°C at a rate of 8°C / min and hold it for 3 hours. After cooling with the furnace, the obtained ceramic g...

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Abstract

The invention relates to a preparation method of a high-strength ceramic grinding wheel binding agent with lepidolite waste residues as main raw materials. The preparation method comprises the following steps of firstly, pretreating the lepidolite waste residues to obtain high-activity glass powder; and 2 taking the mass of the high-activity glass powder in the step 1 as a standard, adding 0.1 to 0.5 time of kaolin and 0.01 to 0.03 time of yellow dextrin powder into a container, uniformly mixing, adding 0.3 to 0.6 time of water, and continuously stirring until the mixture is uniform, so as to obtain the binding agent for the ceramic grinding wheel. The ceramic grinding wheel binding agent is prepared from the lepidolite waste residues as the main raw material, the problem that lithium resources for the ceramic industry are deficient can be solved, meanwhile, solid waste resource utilization can be achieved, enterprise benefits are improved, and therefore the wide market prospect is achieved.

Description

technical field [0001] The invention relates to the field of new inorganic materials and solid waste resource utilization, in particular to a method for preparing a high-strength ceramic grinding wheel bond with lepidolite waste residue as the main raw material. The prepared bond can be widely used in the abrasive tool manufacturing industry, ceramic industry and related fields. Background technique [0002] Vitrified grinding wheel is an abrasive tool made by consolidating abrasive particles with ceramic or glass as a binder. Its phase composition can be roughly divided into three parts: abrasive, binder and pores. Abrasives are particles with high hardness values, generally with sharp edge angles, which are the key to the grinding ability of the grinding wheel; pores are the structure that must be designed to enable the grinding wheel to have chip holding capacity and ensure timely cooling; the bond is to bind the abrasive particles Bonded to form the key material of bond...

Claims

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Application Information

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IPC IPC(8): B24D3/14B24D3/34B24D18/00
CPCB24D3/14B24D3/342B24D18/0009Y02P40/60
Inventor 肖卓豪易晨浩易维民张海涛舒尤睿
Owner JIANGXI GUANYI ABRASIVES CO LTD
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