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Binding agent, preparation method and grinding wheel

A bonding agent and grinding wheel technology, used in the field of abrasives, can solve the problems of long sintering process time, increased grinding wheel cost, lack of universality, etc., and achieve sharp grinding efficiency, fast hardening speed, and universality. Effect

Active Publication Date: 2017-04-05
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

The sintering process takes a long time and is time-consuming and laborious, which directly leads to an increase in the cost of the grinding wheel, and the existing vitrified bond can only be used for specific abrasives due to its specific sintering temperature, and is not universal

Method used

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  • Binding agent, preparation method and grinding wheel
  • Binding agent, preparation method and grinding wheel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The binder of this embodiment is made of the following raw materials in mass percentage: 83% of gypsum powder, 3% of glass fiber powder, and 14% of clay.

[0038] The preparation method of the binding agent of the present embodiment comprises the following steps:

[0039]1) Mix the gypsum powder, glass fiber powder and clay in the formula, put them into a ball mill and mill them at a speed of 180 rpm for 5 hours, and then pass them all through a 300-mesh sieve for 3 times to obtain powder;

[0040] 2) Put the powder obtained in step 1) into a high-temperature furnace, heat up to 180°C at a rate of 2°C / min for calcination for 1.5 hours, then heat up to 300°C at a rate of 5°C / min for 1 hour, and then heat up to 300°C for 1 hour at a rate of 8°C / min. The rate of min is raised to 580°C for 0.5h and calcined to obtain the calcined material;

[0041] 3) Put the calcined material obtained in step 2) into a ball mill and continue ball milling at a speed of 180 rpm for 2 hours,...

Embodiment 2

[0048] The binder of this embodiment is made of the following raw materials in mass percentage: 80% of gypsum powder, 5% of glass fiber powder, and 15% of clay.

[0049] The preparation method of the binding agent of the present embodiment comprises the following steps:

[0050] 1) Mix the gypsum powder, glass fiber powder and clay in the formula, put them into a ball mill and mill them at a speed of 180 rpm for 5 hours, and then pass them all through a 300-mesh sieve for 3 times to obtain powder;

[0051] 2) Put the powder obtained in step 1) into a high-temperature furnace, heat up to 180°C at a rate of 2°C / min for calcination for 1.5 hours, then heat up to 300°C at a rate of 5°C / min for 1 hour, and then heat up to 300°C for 1 hour at a rate of 8°C / min. The rate of min is raised to 580°C for 0.5h and calcined to obtain the calcined material;

[0052] 3) Put the calcined material obtained in step 2) into a ball mill and continue ball milling at a speed of 180 rpm for 2 hours...

Embodiment 3

[0059] The binder of this embodiment is made of the following raw materials in mass percentage: 85% of gypsum powder, 5% of glass fiber powder, and 10% of clay.

[0060] The preparation method of the binding agent of the present embodiment comprises the following steps:

[0061] 1) Mix the gypsum powder, glass fiber powder and clay in the formula, put them into a ball mill and mill them at a speed of 180 rpm for 5 hours, and then pass them all through a 300-mesh sieve for 3 times to obtain powder;

[0062] 2) Put the powder obtained in step 1) into a high-temperature furnace, heat up to 180°C at a rate of 2°C / min for calcination for 1.5 hours, then heat up to 300°C at a rate of 5°C / min for 1 hour, and then heat up to 300°C for 1 hour at a rate of 8°C / min. The rate of min is raised to 580°C for 0.5h and calcined to obtain the calcined material;

[0063] 3) Put the calcined material obtained in step 2) into a ball mill and continue ball milling at a speed of 180 rpm for 2 hours...

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Abstract

The invention relates to a binding agent, a preparation method and a grinding wheel, and belongs to the technical field of abrasives and grinding tools. The binding agent is mainly prepared from the following raw materials by mass percent: 70% to 85% of gypsum, 1% to 12% of glass fiber powder and 8% to 18% of clay. According to the binding agent, the raw materials coact with each other in a limited dosage proportion range, so that a compound high-temperature sintered product has relatively high strength, proper hardness and good plasticity; during preparation of the grinding wheel, the binding agent is mixed with water according to a suitable proportion, the forming speed is high, sintering is not carried out in the follow-up steps, and only natural drying or accelerated drying is required; sintering is not required, and the hardening speed is high, so that various problems like cracking and foaming occurring in traditional ceramic bond sintering are avoided; the binding agent is applicable to grinding wheels for low-speed and high-precision grinding, and the prepared grinding wheel is sharp and is high in grinding efficiency; the binding agent is applicable to various abrasives, the holding force for the abrasives is good, and the binding agent has universality; and the raw materials of the binding agent are easy to obtain, the cost is low, and the binding agent is applicable to large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of abrasive materials, and specifically relates to a bonding agent, and also relates to a preparation method of the bonding agent and a grinding wheel using the bonding agent. 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 abrasives, in the current grinding technology occupy a dominant position. The low-speed finishing industry is gradually developing in the direction of "replacing polishing with grinding", which puts forward higher requirements for bonding agents. [0003] Bonding agent refers to all kinds of materials in the bonded abrasive tool that are bonded to the abrasive. Among them, the vitrified bond is a substance made of low melting point vitrified material, which is used in the man...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/04B24D18/00
CPCB24D3/04B24D18/0009
Inventor 许本超闫宁邵俊永
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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