JPS6352971A - Method for forming disc shape polishing material - Google Patents

Abstract

PURPOSE:To make it possible to eliminate the supply of lubricant or the like, by binding micro balloons in which abrasive grain and filler are charged or which is charged therein with filler and bonded on the outer peripheral surface thereof abrasive grain, to a band-like substrate, and by bonding them in a rolled shape. CONSTITUTION:A disc type polishing material 10 is formed in such a way that several micro balloons 12 are bonded, by resin 13, onto the outer surface of a band-like substrate made of nylon unwoven fabric, and are wound in a rolled shape. The above-mentioned micro balloons are made of an acrylic material which is formed in a spherical shape, and are charged therein with and abrasive grain 14 and lubricant 15 or are charged with lubricant 15 and bonded on the outer surface thereof with abrasive grain by resin 13. Further, a center hole in the disc shape polishing material 10 is fitted on a motor shaft and is made contact with the outer surface of a metal material while it is rotated so that the micro balloons on the outer surface of the polishing material are broken, resulting the abrasive grain 14 leaps out from the inside or the outer surfaces of the balloons. Thus, polishing is made under lubrication by the lubricant 15. Thereby, it is possible to eliminate the supply of lubricant.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a method for forming a disc-shaped abrasive material used for deburring and surface finishing of metal materials.

[Prior art] Puffs and nylon brushes are formed by bonding a large number of abrasive grains and nylon fibers with lenone, and during polishing, even if the abrasive grains on the surface wear out, new abrasive grains come out one after another and prevent clogging. This allows the polishing action to be performed without causing any damage.

However, when the particle size of conventional abrasives becomes small,
There are some types of zoni in which the abrasive grains become embedded in the nylon fibers during use, reducing the polishing effect.

Also, when polishing metal etc. with a puff or nylon brush,
In order to obtain a good surface treatment, lubricants, brighteners or coolants must be supplied at the same time.

[Object of the Invention] The present invention has been made in view of the above circumstances, and its purpose is to prevent abrasive grains from being embedded in nylon fibers,
Moreover, it is an object of the present invention to provide a method for forming a disk-shaped abrasive material that can omit the supply of lubricant and the like.

[Summary of the Invention] In order to achieve the above object, the first invention includes a step of enclosing abrasive grains and a filler into a microballoon, and a step of bonding a large number of microballoons to a strip-shaped base material. A disk-shaped abrasive material is formed by the steps of rolling this base material into a roll and gluing it together.

With these configurations, during polishing, the microballoons break and the abrasive grains inside perform the polishing action.

Furthermore, in the second aspect of the invention, the abrasive grains of the above structure are bonded to the outer surface of the microballoon, and with this structure as well, the abrasive grains and the filler perform exactly the same function.

[Embodiments of the Invention] FIG. 1 shows a cross-sectional view of a disk-shaped abrasive material 10 according to the present invention, and this abrasive material 10 has a strip-shaped base material 11.
, a microballoon 12 and a resin 13.

The base material 11 is a nonwoven fabric made of nylon, and a large number of microballoons 12 are bonded to the outer surface of the base material 11 with a resin 13.

The micro balloon 12 is made of acrylic material processed into a spherical shape, and the inside thereof is filled with abrasive grains 14 and a lubricant 15 as shown in FIG. 3 (Δ).

The microballoon itself is a well-known product, and is originally mixed with 3 Pli plus deck to form air particles inside to control physical and electrical properties. The microballoon 12 has a wall thickness of 2μ and a diameter of ■0 to 5.
000μ hollow spheres made of glass, ceramic, and acrylic are commercially available. Furthermore, a technique for encapsulating a filler within the microballoon 12 has already been developed.

In FIG. 3(B), lubricant 15 is inside and abrasive grains 14 are outside.
A microballoon I2 is shown attached to it. The bonding between the abrasive grains 14 and the microballoons 12 is also performed using the resin 13. The resin 13 is a polymeric binder such as Evoquin type or phenol type.

If the base material 11 to which such micro balloons 12 are bonded is rolled up as shown in FIG. 2 and the ends are joined, a disk-shaped abrasive material IO is completed.

Disc-shaped abrasive material 1 of this embodiment configured as above
0 performs the polishing action as follows.

First, the central hole of the disc-shaped abrasive material 10 is connected to a motor sleeve (not shown), and the disc-shaped abrasive material 10 is brought into contact with a metal surface while being rotated.

As a result, the microballoon 12 on the outermost surface of the disc-shaped abrasive material IO is broken, and the abrasive grains 14 are ejected from the inside or outside, and polishing is performed while receiving the lubricating action of the lubricant I5. Since the abrasive grains 14 are sealed in advance inside the microballoon 12 or bonded to the outer surface, the abrasive grains 14 are
Don't get lost in #1.

Note that the filler in the microballoon 12 is the lubricant I.
In addition to 5, brighteners and coolants can be used as necessary.

[Effects of the Invention] As detailed above, the first invention includes a step of encapsulating abrasive grains and a filler in microballoons, a step of bonding a large number of the microballoons to a strip-shaped base material, and a step of bonding the microballoons to a strip-shaped base material. Since the disc-shaped abrasive material is formed through the process of rolling the material into a roll and gluing it together, it is possible to obtain a disc-shaped abrasive material that prevents the abrasive grains from being buried in the base material and can omit the supply of lubricant, etc. .

Further, in the second invention, the abrasive grains are bonded to the outer surface of the microballoon, and this configuration also provides the same effect as the first invention.

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view of a disc-shaped abrasive material formed according to the present invention, FIG. 2 is a simplified sectional view of the disc-shaped abrasive material, and the third flash (Δ) and (r3) are of each microballoon. It is an enlarged sectional view. lO... Disc-shaped abrasive material 11... Base material 12.
...Microballoon I3...Lennon 14...Abrasive grain 15...Lubricant

Claims (2)

[Claims] (1), a step of enclosing abrasive grains and a filler into microballoons, a step of bonding a large number of the microballoons to a strip-shaped base material, a step of winding this base material into a roll shape and gluing it; A method of forming a disc-shaped abrasive material consisting of: (2) a step of encapsulating a filler in a microballoon;
Formation of a disk-shaped abrasive material consisting of a process of bonding abrasive grains to the outer surface of microballoons, a process of bonding a large number of microballoons to a strip-shaped base material, and a process of winding this base material into a roll shape and gluing it. Method.