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Diamond petroleum stone and preparation method thereof

A diamond and petroleum technology, applied in the field of abrasive tools and abrasives, can solve the problems of low grinding efficiency, easy to collapse, and low strength, and achieve good grinding performance, not easy to collapse, and good toughness

Pending Publication Date: 2022-03-25
SHANGHAI BENAN IND DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional oil stone has low strength and high brittleness, and it is easy to collapse when the grinding positive pressure is large or when grinding misaligned holes, and the grinding efficiency is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] The preparation method comprises the following steps:

[0027] In the first step, copper powder, tin powder, silver powder, carbonyl iron powder, tungsten carbide powder, and diamond abrasive are added to the mixer according to the composition and mass ratio, and the diamond powder is prepared by stirring for 1.5 hours to 2.5 hours;

[0028] The second step is to inject an appropriate amount of diamond stone powder into the mold;

[0029] The third step is to preheat the mold to 600 ℃ ~ 650 ℃, and keep it warm for 5 minutes to 10 minutes; preheat and keep warm, so that the tin powder with low melting point can be fully melted, so that the heated diamond powder has a certain fluidity ;

[0030] The fourth step is to completely heat the mold to 750°C to 800°C and keep it warm for 5 minutes to 10 minutes. At the same time, use the mold to press the diamond stone into the required shape and size; heating and pressing at the same time can make the molten metal fully mix wit...

Embodiment 1

[0036] In a specific embodiment 1, a diamond asphalt comprises the following components and mass ratio: copper powder 40%, tin powder 8%, silver powder 2%, carbonyl iron powder 30%, Tungsten carbide powder 10%, diamond abrasive 10%.

[0037] Its preparation method is as follows:

[0038] In the first step, add 40% of copper powder, 8% of tin powder, 2% of silver powder, 30% of carbonyl iron powder, 10% of tungsten carbide powder and 10% of diamond abrasive into the closed mixer with the following components and mass ratio, and stir for 2 About hours, the diamond stone powder is prepared;

[0039] The second step is to inject an appropriate amount of diamond stone powder into the mold;

[0040] The third step is to preheat the mold to about 600°C and keep it warm for about 10 minutes;

[0041] The fourth step is to fully heat the mold to about 800°C and keep it warm for about 10 minutes, and at the same time use the mold to press the diamond stone into the required shape and...

Embodiment 2

[0046] In a specific embodiment 2, a diamond asphalt comprises the following components and mass ratio: 44% copper powder, 10% tin powder, 2% silver powder, 34% carbonyl iron powder, Tungsten carbide powder 5%, diamond abrasive 5%.

[0047] Its preparation method is as follows:

[0048] In the first step, 44% of copper powder, 10% of tin powder, 2% of silver powder, 34% of carbonyl iron powder, 5% of tungsten carbide powder and 5% of diamond abrasive are added to the closed mixer with the following components and mass ratio, and stirred for 2 About hours, the diamond stone powder is prepared;

[0049] The second step is to inject an appropriate amount of diamond stone powder into the mold;

[0050] The third step is to preheat the mold to about 600°C and keep it warm for about 10 minutes;

[0051] The fourth step is to fully heat the mold to about 800°C and keep it warm for about 10 minutes, and at the same time use the mold to press the diamond stone into the required shap...

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PUM

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Abstract

The invention provides diamond petroleum stone and a preparation method thereof. The diamond petroleum stone comprises, by mass, 40%-45% of copper powder, 5%-10% of tin powder, 2%-4% of silver powder, 25%-35% of carbonyl iron powder, 5%-10% of tungsten carbide powder and 5%-15% of diamond abrasives. The diamond stone has the beneficial effects that the manufacturing process of the diamond stone is simple, the diamond stone can be prepared through a simple mold and heating equipment, the strength of the sintered diamond stone is larger than 70 MPa, and the sintered diamond stone is good in toughness, resistant to abrasion and impact, not prone to collapse, capable of making contact with a ground surface with large positive pressure, good in grinding performance and high in efficiency.

Description

technical field [0001] The invention relates to the field of abrasive materials, in particular to a diamond stone and a preparation method thereof. Background technique [0002] Honing technology has been widely used in grinding, polishing and other inner hole processing scenarios. When it is used for grinding, it often has high requirements for the strength, durability and grinding performance of the whetstone. [0003] For example, the bolt holes of the shaft coupling of the turbogenerator set often need to be ground on site to adjust the size and eliminate the misalignment before installing the bolts, but the strength, hardness and toughness of the coupling are very high. The traditional oilstone has low strength and high brittleness, and it is easy to collapse when the grinding positive pressure is large or when grinding misaligned holes, and the grinding efficiency is low. Therefore need a kind of oil stone to have certain strength and toughness, thereby make oil stone...

Claims

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Application Information

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IPC IPC(8): B22F1/12B22F3/02B22F3/10B24D18/00B24D3/06C22C26/00C22C9/00C22C30/02C22C30/04
CPCB22F3/02B22F3/10B24D18/0009B24D3/06C22C26/00C22C9/00C22C30/02C22C30/04
Inventor 陈涛王鸿雁
Owner SHANGHAI BENAN IND DEV CO LTD