JPH0236074A - Abrasive - Google Patents

Abstract

PURPOSE:To continue a good polishing action for a long time by forming a chip with a diamond particle in a block shape harder by a vitrified bond and sticking the tip a lot via a heat hardening adhesive agent to the surface of a cloth. CONSTITUTION:The chip 1 sticked to the surface of a cloth 5, paper, etc. via a heat hardening adhesive 4 makes a polishing element G by hardening a diamond particle 2 in a block by using a vitrified bond 3. So polishing can be executed with good efficiency for everything by the high hardness of the diamond particle 2 and the sharpness for long time can be held because of the diamond particle 2 having wear resistance.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an abrasive material that can be used for rotary tools and the like.

(Prior art and its problems) Conventionally, an abrasive material as shown in a cross-sectional view in FIG. 4 has been used in a rotary tool, and abrasive grains 53 are arranged on the surface side of a cloth 51 via a resinoid adhesive 52. When an abrasive material with such a structure is used in a rotary tool that rotates at high speed, heat is generated during abrasive processing, and the resinoid adhesive 52 is heated, for example. There was a problem in that it deteriorated at temperatures below about 200''C, and the abrasive grains 53 fell off from the surface side of the cloth 51, resulting in poor durability.

(Means for Solving the Problems) The present invention was devised in view of the above-mentioned conventional problems, and aims to provide an abrasive material with excellent heat resistance and suitable for high-speed polishing, and its gist is as follows: A chip made of diamond particles hardened into a block shape is formed using Vitrified Bond, and then the chip is attached to a cloth.

It is constructed by adhering a large number of them to the surface of paper, plastic, etc. using a thermosetting adhesive.

(Function) The chip, which can be adhered to the surface of cloth 9 paper etc. using a thermosetting adhesive, is made by hardening diamond particles into a block shape using vitrified bond, and due to the high hardness of the diamond particles, it can be used against all kinds of objects. Diamond particles are wear-resistant and can maintain their sharpness for a long time. In addition, even if heat is generated during polishing, Vitrified Bond is a material with extremely high heat resistance, so it will not deteriorate and cause diamond particles to fall off like in the past, and it will retain diamond particles even under high temperatures. It holds firmly and can withstand long periods of high-speed polishing.

(Example) Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 shows a perspective view of a chip constituting the main part of the abrasive material of this example, and the tip 1 is formed in a block shape, and as shown in a cross-sectional view in FIG. Diamond particles 2 are arranged in the vertical direction, and each diamond particle 2 is firmly solidified by vitrified bond 3.

This chip 1 is formed by appropriately arranging diamond particles 2 in a mold filled with the vitrified bond 3 and baking it at a high temperature. Even if you leave the part exposed,
Alternatively, all of the diamond particles 2 may be buried.

As shown in FIG. 2, if a portion S of only the vitrified bond 3 without diamond particles 2 is formed on the bottom side of the chip 1, the heat transfer to the bottom side can be improved. It can be blocked by Incidentally, the diamond particles 2 can be arranged in the pitorphide bond 3 in one step, two steps, or the like.

As shown in FIG. 3, the chip 1 formed in this way is
A thermosetting adhesive 4 may be laid on the upper surface of the cloth 5 and adhered to the upper surface, and the chips 1, 1 may be arranged at a predetermined interval as shown in FIG. , the chips 1 may be arranged in a row. Also, replace cloth 5 with plastic.

Paper, glass cloth, carbon M fiber, thin iron plate, etc. can be used, and the chip 1 can be attached to the upper surface of the material through a thermosetting adhesive 4.

Further, the diamond particles 2 of the chip 1 can be replaced with borazone diamonds.

A rotary tool can be manufactured using the abrasive material G formed in this way, and when the manufactured rotary tool is rotated at high speed and subjected to polishing processing, etc., the upper surface side of the tip 1 is in contact with the material to be polished. The diamond particles 2 of the tip 1 perform a good abrasive action as the tip rotates, and since the diamond particles 2 have extremely high hardness, they apply an abrasive action to the material to be polished for a long time. can be polished well. In addition, even when heat is generated due to high-speed rotation during polishing, the vitrified bond that makes up the chip has excellent heat resistance, so it will not deteriorate even at high temperatures and will firmly hold the diamond particles 2. will not fall off. Therefore, if a rotary tool manufactured using the abrasive material G of this example is used, it is possible to perform high-speed polishing for a long period of time, and greater durability is ensured compared to conventional products.

Incidentally, when the chips 1 are arranged at predetermined intervals as shown in FIG. 3, a cooling effect can be obtained and it becomes possible to correspond to higher speed polishing.

(Effects of the Invention) The abrasive material of the present invention is produced by molding chips made of diamond particles hardened into blocks using vitrified bond, and attaching the chips to the surface of a piece of cloth, plastic, etc. using a thermosetting adhesive. Due to the adhesive structure, the heat resistance of Vitrified Bond allows it to be used for high-speed polishing.
The diamond particles are firmly held without deteriorating due to heat generation, and the wear resistance of the diamond particles allows for good polishing action to be sustained for a long time, making it possible to perform extremely high-speed polishing compared to conventional methods. It has the effect of being extremely durable compared to conventional products.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is an external perspective view of the tip, Fig. 2 is a cross-sectional configuration diagram of Fig. 1, Fig. 3 is a partially enlarged sectional view of the abrasive material, and Fig. 4 is FIG. 2 is a sectional view of a main part of a conventional abrasive material. 1... Chip 2... Diamond particles 3... Vitrified bond 4... Thermosetting adhesive 5... Cloth G... Abrasive material

Claims (1)

[Claims] Polishing characterized by forming chips made of diamond particles solidified into blocks using vitrified bond, and pasting a large number of chips onto the surface of cloth, paper, plastic, etc. via a thermosetting adhesive. material.