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Metal bonding agent, metal bonding agent diamond grinding wheel and preparing method of metal bonding agent diamond grinding wheel

A technology of metal bond and diamond grinding wheel, which is applied in the field of abrasives and abrasive tools, can solve the problems of high sintering temperature and high production cost of abrasive tools, and achieve the effects of low sintering temperature, improved wear resistance and reduced production cost

Inactive Publication Date: 2018-12-11
白鸽磨料磨具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the sintering temperature required for the abrasive tools made of this metal bond is relatively high during the sintering process, which makes the production cost of the abrasive tools relatively high

Method used

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  • Metal bonding agent, metal bonding agent diamond grinding wheel and preparing method of metal bonding agent diamond grinding wheel
  • Metal bonding agent, metal bonding agent diamond grinding wheel and preparing method of metal bonding agent diamond grinding wheel
  • Metal bonding agent, metal bonding agent diamond grinding wheel and preparing method of metal bonding agent diamond grinding wheel

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Experimental program
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Effect test

Embodiment 1

[0034] The metal bonding agent of this embodiment is composed of the following components in mass percentage: 16% copper powder, 4% tin powder, 4% titanium hydride powder, and the balance is copper-tin alloy powder. Wherein the copper-tin alloy powder is composed of the following components in mass percentage: 20% tin, and the balance is copper.

[0035] The preparation method of the metal bond in this embodiment is as follows: put the copper powder, tin powder, titanium hydride, and copper-tin alloy powder that have passed through a 400-mesh sieve respectively into a vacuum ball mill for 20 hours according to the above-mentioned percentages, and then pass through a 325-mesh sieve , to obtain metal binders.

Embodiment 2

[0037] The metal bond diamond grinding wheel of this embodiment includes metal bond and diamond. The mass percentage of metal bond in the metal bond diamond grinding wheel is 83.7%, and the mass percentage of diamond is 16.3%. Wherein the metal bond is the metal bond in Example 1, and the diamond is titanium-plated diamond.

[0038] The preparation method of the metal bond diamond grinding wheel of the present embodiment comprises the following steps:

[0039] (1) Get the titanium-coated diamond of formula quantity and moisten with liquid paraffin, then add the metal bonding agent of formula quantity, mix 24h with high-energy mixer, obtain molding material;

[0040] (2) Vacuum hot pressing sintering was performed on the obtained molding material, the sintering temperature was 630° C., the pressure was 29 MPa, and the holding time was 8 minutes.

Embodiment 3

[0042] The metal bonding agent of this embodiment is composed of the following components in mass percentage: 16% copper powder, 4% tin powder, 4% titanium hydride powder, and the balance is copper-tin alloy powder. Wherein the copper-tin alloy powder is composed of the following components in mass percentage: 15% tin, and the balance is copper.

[0043] The preparation method of the metal bond in this embodiment is as follows: Put the copper powder, tin powder, titanium hydride, and copper-tin alloy powder that have passed through a 325 mesh sieve respectively into a vacuum ball mill for 20 hours according to the above percentages, and then pass through a 325 mesh sieve , to obtain metal binders.

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Abstract

The invention particularly relates to a metal bonding agent, a metal bonding agent diamond grinding wheel and a preparing method of the metal bonding agent diamond grinding wheel, and belongs to the technical field of grinding materials and grinding tools. The metal bonding agent comprises following components including, by mass percent, 5%-20% of copper, 2%-6% of tin, 1%-5% of titanium hydride and the balance a copper-tin alloy. The metal bonding agent diamond grinding wheel can be prepared with the metal bonding agent and titanium plating diamonds or nickel plating diamonds as raw materialsthrough material mixing and vacuum hot pressed sintering. The copper-tin alloy powder serves as a main component of the bonding agent, the grinding wheel sintering temperature is reduced in the hot press process, and the production cost is reduced. The titanium hydride is decomposed in the hot press process, metal powder of an oxidized part can be subjected to reducing, the strength of the bondingagent is improved, and accordingly the strength of the metal bonding agent diamond grinding wheel is improved.

Description

technical field [0001] The invention belongs to the technical field of abrasive materials, and in particular relates to a metal bond, a metal bond diamond grinding wheel and a preparation method thereof. Background technique [0002] Bonding agent is a commonly used bonding material in superhard abrasive tools, including vitrified bonding agent, metal bonding agent, magnesite bonding agent, resin bonding agent and so on. Bonding agent is one of the important structural components of superhard abrasive tools, and the performance of bonding agent has a decisive influence on the performance of abrasive tools. Among them, the metal bond has the characteristics of strong bonding ability, good fluidity, good forming effect and good thermal conductivity, and has been widely used in brittle materials and high-precision processing. However, the metal bond has a lower porosity due to its higher density. Therefore, when the metal bond is applied to the grinding wheel, the self-sharpe...

Claims

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Application Information

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IPC IPC(8): B24D3/06B24D18/00
CPCB24D3/06B24D18/0009
Inventor 董德胜陈锋黎克楠屈学伦范永生
Owner 白鸽磨料磨具有限公司
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