High-strength low-temperature-sintering glass ceramic bonding agent and preparation method thereof

A glass-ceramic, low-temperature sintering technology, used in manufacturing tools, metal processing equipment, abrasives, etc., can solve problems such as the difficulty of uniform adhesion of binder particles, easy formation of stress grinding wheels, cracking, etc., to achieve high strength and improve glass performance. , the effect of reducing costs

Active Publication Date: 2017-09-15
JIANGXI GUANYI ABRASIVES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For corundum grinding wheels, the currently used bond is vitrified bond. Because vitrified bond needs to mix a variety of inorganic minerals or oxide raw materials, it is difficult to achieve sufficient homogenization in the mixture, and various components It is difficult for the binder particles to ad

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A high-strength low-temperature sintered glass-ceramic binder, which is composed of the following raw materials according to mass percentage: 45% silicon dioxide, 8% aluminum oxide, 8% boron oxide, 3% lithium oxide, 6% sodium oxide, and 6% potassium oxide , magnesium oxide 9%, calcium oxide 3%, barium oxide 2%, zinc oxide 3%, phosphorus pentoxide 4% and yttrium oxide 3%.

[0017] The preparation method of the high-strength low-temperature sintered glass-ceramics binder, the specific steps are as follows:

[0018] Step 1: Weigh the required raw materials according to the formula and pass through an 80-mesh standard sieve, mix all the raw materials evenly and melt at 1320 degrees Celsius to form molten glass, and keep it warm for 2.5 hours to promote the homogenization of the molten glass;

[0019] Step 2, pouring the high-temperature glass liquid into tap water at room temperature for water quenching, drying and crushing to obtain glass slag;

[0020] Step 3, heat treat...

Embodiment 2

[0025] A high-strength low-temperature sintered glass-ceramic binder, which is composed of the following raw materials according to mass percentage: 47% silicon dioxide, 6% aluminum oxide, 11% boron oxide, 2% lithium oxide, 6% sodium oxide, and 6% potassium oxide , magnesium oxide 4%, calcium oxide 4%, barium oxide 3%, zinc oxide 4%, phosphorus pentoxide 3% and yttrium oxide 4%.

[0026] The preparation method of the high-strength low-temperature sintered glass-ceramics binder, the specific steps are as follows:

[0027] Step 1: Weigh the required raw materials according to the formula and pass through an 80-mesh standard sieve, mix all the raw materials evenly and melt at 1270 degrees Celsius to form molten glass, and keep the temperature for 2.0 hours to promote the homogenization of the molten glass;

[0028] Step 2, pouring the high-temperature glass liquid into tap water at room temperature for water quenching, drying and crushing to obtain glass slag;

[0029] Step 3, h...

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PUM

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Abstract

The invention discloses a high-strength low-temperature-sintering glass ceramic bonding agent. The high-strength low-temperature-sintering glass ceramic bonding agent consists of the following raw materials in percentage by mass: 40-49% of silicon dioxide, 5-15% of aluminum oxide, 8-15% of boron oxide, 1-5% of lithium oxide, 6-9% of sodium oxide, 6-9% of potassium oxide, 9-12% of magnesium oxide, 5-11% of calcium oxide, 3-8% of barium oxide, 2-5% of zinc oxide, 3-9% of phosphorous pentoxide and 2-6% of yttrium oxide. The invention further discloses a preparation method and use method of the high-strength low-temperature-sintering glass ceramic bonding agent. The high-strength low-temperature-sintering glass ceramic bonding agent is stable in component and homogeneous; particles of various sizes can be obtained easily; and sintering temperature is low, so that homogeneous packing for abrasive particles can be realized at relatively-low sintering temperature conditions, and therefore the problems of low product qualification rate and unstable performance which are encountered during production of current corundum grinding wheels, especially corundum grinding wheels finer than 400 are solved.

Description

technical field [0001] The invention relates to the field of superhard material production, in particular to a high-strength low-temperature sintered glass-ceramic bonding agent. Background technique [0002] Corundum grinding wheel is a commonly used abrasive tool, which is prepared by mixing corundum abrasive particles with a binder, pressing into a certain shape, and then sintering at high temperature. The quality of the grinding wheel mainly depends on the performance of the bond itself and the wettability between the bond and the abrasive particles, the consistency of expansion, and the bonding strength. Therefore, the preparation and selection of high-performance binder is a necessary condition for obtaining high-performance abrasive tools. At present, the commonly used bonding agents for grinding wheels include vitrified bonding agents, glass bonding agents, resin bonding agents, and emerging glass-ceramic bonding agents. Among them, the glass-ceramic bond has becom...

Claims

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Application Information

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IPC IPC(8): B24D3/04B24D3/34C03C10/00
CPCB24D3/04B24D3/342C03C10/0009
Inventor 易晨浩张海涛吴敏
Owner JIANGXI GUANYI ABRASIVES CO LTD
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