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Crystal cluster type inorganic binding agent and preparation method thereof

An inorganic binder and crystal cluster type technology, which is applied in glass manufacturing equipment, manufacturing tools, glass furnace equipment, etc., can solve the problems of complex process and high energy consumption, and achieve large number of crystal nuclei, easy nucleation and grain size. The effect of control

Inactive Publication Date: 2021-04-16
CHINA NONFERROUS METAL (GUILIN) GEOLOGY & MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this invention needs to add a high-energy ball milling process after sintering, which is complicated and consumes a lot of energy.

Method used

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  • Crystal cluster type inorganic binding agent and preparation method thereof
  • Crystal cluster type inorganic binding agent and preparation method thereof
  • Crystal cluster type inorganic binding agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: preparation is used for the high silicon type inorganic binder of diamond grinding tool

[0023] ① Formula:

[0024] SiO 2 60wt%, Al 2 o 3 5wt%, B 2 o 3 15wt%, K 2 O 1wt%, Li 2 O 1wt%, Na 2 O 8wt%, ZnO 1wt%, BaO 1wt%, MgO 1wt%, ZrO 2 4wt%, TiO 2 3 wt%.

[0025] ②Preparation method:

[0026] Grind the above raw materials through a 100-mesh screen respectively, then weigh them according to the chemical ratio, stir them evenly and pass through a 100-mesh screen three times, and finally put the raw materials after the sieve into an alumina crucible and put them in a high-temperature melting furnace Melting, the smelting process is as follows: first heat up to 1350°C at a heating rate of 10°C / min, and hold for 60 minutes; then drop to 1200°C at a rate of 15°C / min, quickly pour the material after holding for 30 minutes, quench water, and ball mill to obtain a certain particle size water-quenched binder (50 μm). The ball-milled material is sinte...

Embodiment 2

[0032] Embodiment 2: preparation is used for the high aluminum type inorganic binder of cubic boron nitride (cBN) grinding tool

[0033] ① Formula:

[0034] SiO 2 20wt%, Al 2 o 323wt%, B 2 o 3 15wt%, K 2 O 5wt%, Li 2 O 8wt%, Na 2 O 8wt%, ZnO 4wt%, BaO 5wt%, MgO 5wt%, ZrO 2 2wt%, TiO 2 3wt%, P 2 o 5 , 2wt%.

[0035] ②Preparation method:

[0036] Grind the above raw materials through a 100-mesh screen respectively, then weigh them according to the chemical ratio, stir them evenly and pass through a 100-mesh screen three times, and finally put the raw materials after the sieve into an alumina crucible and put them in a high-temperature melting furnace Melting, the melting process is as follows: firstly heat up to 1600°C at a heating rate of 3°C / min, and hold for 180 minutes; Water quenched binder (15 μm). The material after ball milling is sintered. The sintering process is as follows: firstly, the heating rate is 3°C / min to 80°C, and the temperature is kept fo...

Embodiment 3

[0042] Embodiment 3: preparation is used for precision grinding diamond tool vitrified bond

[0043] ① Formula:

[0044] SiO 2 45wt%, Al 2 o 3 15wt%, B 2 o 3 10wt%, K 2 O 1wt%, Li 2 O 4wt%, Na 2 O 5wt%, ZnO 4wt%, BaO 5wt%, MgO 5wt%, ZrO 2 2wt%, TiO 2 4wt%.

[0045] ②Preparation method:

[0046] Grind the above raw materials through a 100-mesh screen respectively, then weigh them according to the chemical ratio, stir them evenly and pass through a 100-mesh screen three times, and finally put the raw materials after the sieve into an alumina crucible and put them in a high-temperature melting furnace Melting, the smelting process is as follows: firstly heat up to 1400°C at a heating rate of 5°C / min, and hold for 120 minutes; Water quenched binder (0.01 μm). The material after ball milling is sintered. The sintering process is as follows: firstly, the heating rate is 2°C / min to 100°C, and the heat preservation is 50 minutes; then the heating rate is 5°C / min to 2...

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Abstract

The invention discloses a crystal cluster type inorganic binding agent and a preparation method thereof. The crystal cluster type inorganic binding agent is prepared from the following components in percentage by weight: 20-60wt% of SiO2, 5-23wt% of Al2O3, 5-15wt% of B2O3, 1-5wt% of K2O, 1-8wt% of Li2O, 0-8wt% of Na2O, 1-4wt% of ZnO, 0-5wt% of BaO, 0-5wt% of MgO and 1-7wt% of a crystal cluster nucleating agent. In the smelting process, molten materials are nucleated under the supercooling condition that smelting is conducted at the high temperature, then rapid cooling is conducted to the relatively low temperature, heat preservation is conducted for a period of time, and then water quenching is conducted, a large number of tiny nucleation points are formed, silicate oxyanion groups are deposited and stacked on the nucleation points in combination with the sintering process of stepped heating, and a crystal cluster structure similar to a complexing type is formed, so that the glass ceramics are reinforced and toughened.

Description

technical field [0001] The invention relates to a superhard material binder, in particular to a crystal cluster type inorganic binder and a preparation method thereof. Background technique [0002] Superhard material abrasives mainly refer to a grinding tool with a certain shape and strength prepared by using diamond or cubic boron nitride as abrasive grains, with the help of metal, ceramic inorganic matter or resin and other binders. Compared with metal bonds and resin bonds, ceramic inorganic bond products have outstanding advantages such as high processing efficiency, good shape retention, strong self-sharpening, and good high temperature stability, and are widely used in the field of grinding processing. [0003] In the current vitrified inorganic bond superhard abrasive tools, the main component of the general-purpose vitrified bond is glass. Since glass is a brittle material with poor strength, the overall strength of the superhard grinding block used as a binder is i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/04C03C10/00C03B5/235C03B32/02
Inventor 谢德龙潘晓毅林峰肖乐银陈超陈家荣莫培程
Owner CHINA NONFERROUS METAL (GUILIN) GEOLOGY & MINING CO LTD
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