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Preparation method of high-strength durable porous diamond grinding wheel

A diamond grinding wheel, high-strength technology, used in metal processing equipment, manufacturing tools, ceramic products, etc., can solve the problems of insufficient grinding wheel strength, easy falling off of grinding wheel abrasives, short service life, etc. The effect of densification and improvement of interfacial adhesion

Inactive Publication Date: 2018-03-13
CHANGZHOU C PE PHOTO ELECTRICITY SCI & TECHN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main technical problem to be solved by the present invention is to provide a high-strength and durable porous diamond grinding wheel preparation method for the defects that the current grinding wheel abrasives are easy to fall off during high-speed grinding, resulting in short service life and insufficient strength of the grinding wheel.

Method used

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  • Preparation method of high-strength durable porous diamond grinding wheel

Examples

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Effect test

example 1

[0027] In parts by weight, pour 20 parts of silicon dioxide, 15 parts of alumina, 30 parts of calcium carbonate, 15 parts of zirconia, 10 parts of sodium carbonate, 10 parts of potassium carbonate, 8 parts of aluminum carbonate, and 40 parts of boric acid into the corundum ball mill In the altar, the diameter of the corundum ball is 30mm, the rotation speed of the ball mill altar is set to 80r / min, and the ball is milled for 30 minutes to obtain the ball abrasive powder; pour the ball abrasive powder into the crucible furnace, heat up to 1300°C, and keep it for 30 minutes to obtain a fusion bond Plug the plugging rod, put an enamel container filled with water at the outlet of the crucible furnace, use the plugging rod to drain the molten bonding agent into the enamel container for water quenching for 3 minutes, and collect the ceramic bonding agent in the enamel container. agent fragments; mix the above vitrified bond fragments with water and other qualities, pour them into the...

example 2

[0029] In parts by weight, pour 22 parts of silicon dioxide, 20 parts of alumina, 32 parts of calcium carbonate, 17 parts of zirconia, 11 parts of sodium carbonate, 12 parts of potassium carbonate, 9 parts of aluminum carbonate, and 45 parts of boric acid into the corundum ball mill In the altar, the diameter of the corundum ball is 35mm, the rotation speed of the ball mill altar is set to 90r / min, and the ball mill is 32min to obtain the ball abrasive powder; pour the ball abrasive powder into the crucible furnace, heat up to 1320°C, and keep it for 35min to obtain a fusion bond Plug the plugging rod, put an enamel container filled with water at the outlet of the crucible furnace, use the plugging rod to drain the molten bonding agent into the enamel container for water quenching for 3 minutes, and collect the ceramic bonding agent in the enamel container. agent fragments; mix the above-mentioned vitrified bond fragments with water and other qualities, pour them into a corundu...

example 3

[0031] In parts by weight, pour 25 parts of silicon dioxide, 25 parts of alumina, 35 parts of calcium carbonate, 20 parts of zirconia, 12 parts of sodium carbonate, 15 parts of potassium carbonate, 10 parts of aluminum carbonate, and 50 parts of boric acid into the corundum ball mill In the altar, the diameter of the corundum ball is 50 mm, the rotation speed of the ball mill altar is set to 100 r / min, and the ball mill is 35 minutes to obtain the ball mill powder; pour the ball mill powder into the crucible furnace, heat up to 1350 ° C, and keep it for 40 minutes to obtain a fusion bond agent, plug the plugging rod, put an enamel container filled with water at the discharge port of the crucible furnace, use the plugging rod to drain the molten bonding agent into the enamel container for water quenching for 4 minutes, and collect the ceramic bonding agent in the enamel container. agent fragments; mix the above vitrified bond fragments with water and other qualities, pour them i...

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Abstract

The invention discloses a preparation method of a high-strength durable porous diamond grinding wheel, and belongs to the technical field of grinding wheel preparation. Silicon dioxide, aluminum oxide, zirconium oxide and boric acid are used as main raw materials for ball milling, melting, quenching, secondary ball milling and drying to obtain ceramic bonding agent powder; the crystal interface energy is high, so that abrasives of the grinding wheel are not easy to fall during grinding, and the durability, namely the service life of the grinding wheel is improved; a bonding agent of film coating diamond abrasives is in a liquid state at a sintering temperature, and is filled in capillary holes between the abrasives to accelerate compactness of the grinding wheel; meanwhile, through a protection effect of titanium dioxide films on the surfaces of the abrasives, the exhausting of gas in the sintering process of the grinding wheel is influenced, and the service life of the grinding wheelis prolonged; air holes can accommodate grinding chips; the edge rate of the grinding wheel in the grinding process is higher, so that the grinding efficiency is improved; and through a proper porosity, the holding force of the diamond grinding wheel to the bonding agent is improved, so that the strength of diamond is improved, and the application prospect is broad.

Description

Technical field [0001] The invention discloses a method for preparing a high-strength and durable porous diamond grinding wheel, and belongs to the technical field of grinding wheel preparation. Background technique [0002] The grinding wheel is also called a bonded abrasive. The grinding wheel is a bonded abrasive that consolidates ordinary abrasives into a certain shape (mostly circular with a through hole in the center) and has a certain strength. It is generally composed of abrasives, binders and pores. These three parts are often called the three elements of bonded abrasive tools. According to different classifications of binders, the common ones are ceramic (bond) grinding wheels, resin (bond) grinding wheels, and rubber (bond) grinding wheels. The grinding wheel is the most commonly used and widely used type of abrasive tools. When used, it rotates at high speed and can be used for rough grinding, semi-finish grinding and grinding of the outer circle, inner circle, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/18B24D3/34B24D18/00C04B32/00C03C8/02C04B40/00C04B38/00C04B111/10C04B111/20C04B111/40
CPCB24D3/18B24D3/342B24D18/0009C03C8/02C04B32/005C04B2111/00362C04B2111/1006C04B2111/20C04B2111/2038C04B2111/40C04B2201/50C04B14/022C04B14/22C04B14/303C04B24/026C04B18/248C04B24/38C04B40/0085C04B38/0038
Inventor 龙仕冬何少雄陈可
Owner CHANGZHOU C PE PHOTO ELECTRICITY SCI & TECHN
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