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Additive raw material composite and additive for superhard material product, preparation method of additive, combined binder and superhard material product

A technology of composite binder and raw material composition, which is applied in the direction of metal processing equipment, abrasives, manufacturing tools, etc., can solve the problems of limited improvement of grinding wheel grinding efficiency and service life, and is not easy to disperse evenly, so as to improve grinding efficiency and service life, low refractoriness and fine structure

Active Publication Date: 2016-10-26
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 composite bond grinding wheel uses ceramic powder and bronze powder to make a composite bond, but the ceramic powder has high refractoriness and needs to be smelted at 1700°C, which is higher than the sintering temperature of the grinding wheel, so it is not easy to disperse evenly during the sintering process , the improvement of the grinding efficiency and service life of the grinding wheel is limited

Method used

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  • Additive raw material composite and additive for superhard material product, preparation method of additive, combined binder and superhard material product
  • Additive raw material composite and additive for superhard material product, preparation method of additive, combined binder and superhard material product
  • Additive raw material composite and additive for superhard material product, preparation method of additive, combined binder and superhard material product

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Embodiment 1

[0036] The additive raw material composition for superhard material products of this embodiment consists of the following components in mass percentage:

[0037]

[0038] The additive for superhard material products of this embodiment is made from the above-mentioned raw material composition, and the preparation method includes the following steps:

[0039] 1) Take Bi of formula quantity 2 o 3 , B 2 o3 , ZnO, SiO 2 、Al 2 o 3 、Na 2 CO 3 , Li 2 CO 3 , MgCO 3 After mixing evenly, put it into a quartz crucible, place it in a high-temperature resistance furnace, heat it at 10°C / min to 1250°C and keep it warm for 2 hours to obtain a mixture;

[0040] 2) Cool the mixture obtained in step 1) to 850°C at a rate of 5°C / min, and add the formula amount of CaF 2 And stir and mix, keep warm for 2h to get sintered product;

[0041] 3) Pour the sintered product obtained in step 2) into cold water for quenching to obtain a block material; according to the volume ratio of the mat...

Embodiment 2

[0049] The additive raw material composition for superhard material products of this embodiment consists of the following components in mass percentage:

[0050]

[0051]

[0052] The additive for superhard material products of this embodiment is made from the above-mentioned raw material composition, and the preparation method includes the following steps:

[0053] 1) Take Bi of formula quantity 2 o 3 , B 2 o 3 , ZnO, SiO 2 、Al 2 o 3 、Na 2 CO 3 , Li 2 CO 3 After mixing evenly, put it into a quartz crucible, place it in a high-temperature resistance furnace, heat it at 10°C / min to 1300°C and keep it warm for 1 hour to obtain a mixture;

[0054] 2) Cool the mixture obtained in step 1) to 850°C at a rate of 5°C / min, and add the formula amount of CaF 2 And stir and mix, keep warm for 2h to get sintered product;

[0055] 3) Pour the sintered product obtained in step 2) into cold water for quenching to obtain a block material; according to the volume ratio of the ...

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Abstract

The invention discloses an additive raw material composite and an additive for a superhard material product, a preparation method of the additive, a combined binder and the superhard material product. The raw material composite is composed of the following components including, by mass, 25%-40% of Bi2O3, 25%-40% of B2O3, 5%-25% of ZnO, 2%-10% of SiO2, 2%-10% of Al2O3, 1%-5% of Na2CO3, 1%-5% of Li2CO3, 0%-5% of MgCO3 and 1%-5% of CaF2. The additive prepared from the raw material composite has a microcrystal structure and is larger than 200 MPa in strength, the refractoriness of the additive is lower than 500 DEG C which is far lower than the sintering temperature of the metal binder superhard material product, the additive is uniformly dispersed and fine in structure among framework particles after sintering, the influence on the integral strength of the product is small, and accordingly, the grinding efficiency of the metal binder superhard material product can be remarkably improved and the service life of the metal binder superhard material product can be remarkably prolonged.

Description

technical field [0001] The invention belongs to the technical field of superhard material products, and in particular relates to an additive raw material composition for superhard material products, and also relates to an additive for superhard material products made by using the additive raw material composition and a preparation method thereof. It relates to a composite bond containing the additive and a grinding wheel using the composite bond. Background technique [0002] Superhard materials mainly refer to diamond and cubic boron nitride, whose hardness is much higher than that of other materials. Superhard materials and products are emerging industries supported by the state. The "Twelfth Five-Year Plan" national strategic emerging industry development plan points out that new functional materials should be vigorously developed, and high-purity graphite, artificial crystals, superhard materials and products should be actively developed. Superhard material products mai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/04
CPCB24D3/04
Inventor 韩欣牛俊凯闫宁邢波
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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