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Composite binding agent diamond-impregnated wheel and manufacturing method thereof

A technology of composite binder and production method, which is applied in the direction of abrasive materials, grinding devices, manufacturing tools, etc., can solve the problems of poor heat resistance and short service life of grinding wheels, achieve high grinding efficiency, avoid blackening, and improve wear resistance. The effect of thermal performance

Inactive Publication Date: 2015-03-25
SHANTOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide a kind of composite bonding agent diamond grinding wheel and its manufacture method, add one-dimensional metal fiber to replace part or all metal powder in traditional bonding agent, and form the continuous network of fiber by the natural overlap of fiber, because With the addition of metal fibers, the thermal conductivity of the bond is better and the service life is longer, which solves the problem of poor heat resistance and short service life of the grinding wheel

Method used

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  • Composite binding agent diamond-impregnated wheel and manufacturing method thereof

Examples

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Effect test

Embodiment 1

[0036] Weigh 60 parts of polyimide resin powder, 20 parts of copper fiber with an aspect ratio of 18, 5 parts of copper powder, 7 parts of zinc oxide, 5 parts of iron red powder, 3 parts of calcium oxide powder, and fully mix in the mixer for 2 hours; Weigh 47 parts of diamond abrasive, 10 parts of green silicon carbide powder, 5 parts of furfuryl alcohol, and 38 parts of mixed composite binder powder, put them into a mixer and mix them thoroughly for 1 hour. Spread the liquid paraffin evenly on the molding surface of the mold, pour an appropriate amount of molding material and spread it out to make the thickness of the molding material uniform. Put the mold into a thermoforming machine, pressurize to 25 MPa, keep the pressure at 210°C for 1 hour, and cool naturally. Take out the mold and place it on a glass plate for demoulding; put the formed grinding wheel in an oven, keep it warm at 230°C for 1 hour, and cool naturally. After post-processing such as machining and sharpeni...

Embodiment 2

[0038] Weigh 42 parts of polyimide resin powder, 35 parts of copper fiber with an aspect ratio of 12, 10 parts of copper powder, 5 parts of zinc oxide powder, 5 parts of iron red powder, and 3 parts of calcium oxide powder, and put them into the mixer fully Mix for 2 hours; weigh 50 parts of diamond abrasive, 10 parts of green silicon carbide powder, 2 parts of furfuryl alcohol, and 38 parts of mixed composite binder powder, and fully mix in the mixer for 1 hour. Spread the zinc stearate release agent evenly on the molding surface of the mold, then pour an appropriate amount of molding material and spread it out to make the thickness of the molding material uniform. Put the mold into a thermoforming machine, pressurize to 30 MPa, keep the pressure at 215°C for 1 hour, and cool naturally. Take out the mold and place it on a glass plate for demoulding; put the formed grinding wheel in an oven, keep it warm at 230°C for 1 hour, and cool naturally. After post-processing such as m...

Embodiment 3

[0040] Weigh 30 parts of polyimide resin powder, 45 parts of copper fiber with an aspect ratio of 15, 10 parts of copper powder, 7 parts of zinc oxide powder, 6 parts of iron red powder, and 2 parts of calcium oxide powder, and put them into the mixer fully Mix for 2 hours; weigh 48 parts of diamond abrasive, 15 parts of green silicon carbide powder, 3 parts of furfuryl alcohol, and 34 parts of mixed composite binder powder, put them into the mixer and mix them for 1 hour. Spread liquid paraffin evenly on the molding surface of the mold, then pour an appropriate amount of molding material and spread it out to make the thickness of the molding material uniform. Put the mold into a thermoforming machine, pressurize to 40 MPa, keep the pressure at 215°C for 1 hour, and cool naturally. Take out the mold and place it on a glass plate for demoulding; put the formed grinding wheel in an oven, keep it warm at 230°C for 1 hour, and cool naturally. After post-processing such as machini...

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Abstract

The invention discloses a composite binding agent diamond-impregnated wheel and a manufacturing method of the composite binding agent diamond-impregnated wheel. Composite binding agents comprise one or more one-dimensional metal fibers, and a fiber or whisker continuous network is formed through natural lap joint of the one-dimensional metal fibers. The composite binding agents are composed of, by weight, 30-60 parts of resin powder, 20-55 parts of the one-dimensional metal fibers, 0-35 parts of copper powder, 5-8 parts of zinc oxide, 5-6 parts of ferrous powder and 2-3 parts of calcium oxide powder. The invention further provides the manufacturing of the diamond-impregnated wheel. The one-dimensional metal fibers are used for replacing metal powder in traditional binding agents containing metal and resin, the characteristics of good self-sharpening performance, small grinding force and the like of a resin binding agent diamond-impregnated wheel are kept, the heat conduction performance is better as the metal fibers are added, and the service life of the diamond-impregnated wheel is obviously prolonged.

Description

Technical field [0001] The invention relates to a grinding tool and a grinding tool processing technology, and in particular to a composite bond diamond grinding wheel and a manufacturing method thereof. Background technique [0002] Grinding wheels are an important type of abrasive tools in grinding processing. There are three main types of bonding agents for grinding wheels: ceramic, metal, and resin bonding, among which resin bonding is the most widely used. Resin bond has the characteristics of high strength, high elasticity and impact resistance. Resin bond diamond grinding wheel has the advantages of good grinding surface quality, low grinding force, low grinding temperature, good self-sharpening and high grinding efficiency, and is widely used. It is used in the grinding of hard and brittle materials such as cemented carbide, ceramics, and glass. However, during the grinding process of resin bonded grinding wheels, due to the poor thermal conductivity of the resin, ...

Claims

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Application Information

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IPC IPC(8): B24D3/02B24D3/34B24D18/00
CPCB24D3/02B24D3/342B24D18/0009
Inventor 王双喜张丹刘高山赵永杰王文君
Owner SHANTOU UNIV
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