JPH05162085A - Polishing/grinding material and manufacture thereof - Google Patents

Abstract

PURPOSE:To efficiently polish or grind a work even when the surface of a work to be polished is a curved face or a complicated face by putting inorganic continuous long fibers in order in one direction so as to be formed into a bundle and solidified into a slender bar with resin, and spacedly arranging a plurality of the slender bars in the fiber direction. CONSTITUTION:Textile or knitting having inorganic continuously long fiber bundles as warps 2 is impregnated with resin, and the warps 2 are projected from the textile or the knitting by a decided length, by drawing the warps 2 from the textile or the knitting, or by removing yarns 3 in the other direction. Next, the resin is solidified to form slender bars 1, and desired grinding material is obtained. In this case, the sectional form of the slender bar 1 is formed so that the width to thickness ratio is 1-50, thickness is about 0.05-2mm, and the sectional area is 0.0-5-2.5mm<2>.

Description

Detailed Description of the Invention [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention grinds and grinds various materials.
Related materials. More specifically, resin is used to bind inorganic continuous fibers.
The present invention relates to a combined abrasive material and a method for manufacturing the same. [0002] 2. Description of the Related Art Inorganic abrasive grains and fibers are used as abrasive materials.
Plate-shaped, stick-shaped, round bar-shaped, pipe-shaped, solid
Rush-shaped and other shapes have been proposed. For example,
JP-A-58-136829, JP-A-63-21920,
Fibrous material composed of aromatic polyamide mixed with inorganic particles
And the cross-sectional area of the fibrous material is 0.01 to 5 mm²And
Or the fibrous material has a flatness of at least 1.3
What is a thread, and a bra that bundles those fibrous materials
Shi is proposed. JP-A-61-176304, JP-A-61-2348
No. 04, JP 61-252075, etc.
Obtained by melt spinning a thermoplastic resin containing abrasive particles
A monofilament that can be used and a brush that processes it
Is being proposed. Japanese Patent Laid-Open Nos. 1-222865 and 2-232170
In the gazette, alumina continuous filaments and other inorganic continuous fibers are used.
Abrasive grinding of plates, rods, and pipes in which continuous fibers are bonded with resin
Wood has been proposed. Japanese Unexamined Patent Publication No. 2-232174 discloses an alumina-based material.
Of continuous fibers and other inorganic continuous fibers and inorganic continuous fibers
Using a woven cloth, heat the fiber to 50-81% by volume.
Bonded with a curable resin, the rotary shaft and rotary chip
An integrated rotary tool is shown, said rotary tool
The rotating tip has a disk shape, a cylindrical shape, a cylindrical shape, a conical shape, or a square shape.
A cone-shaped object and a cylindrical or cylindrical bra
A brush-shaped abrasive material has been proposed. [0006] [Problems to be Solved by the Invention] JP-A-58-136829
Inorganic strips, as in the report and JP 63-21920.
Abrasive abrasives made of thermoplastic resin containing abrasive grains
There is a limit to the content of grains. Therefore, the polishing efficiency is too high.
Also, the surface accuracy of the material to be polished is not sufficient. Alumina as disclosed in JP-A 1-222865
A plate made of continuous fibers and other inorganic continuous fibers solidified with resin,
Abrasive abrasives in the form of rods and pipes and rotation of these various shapes
Since the abrasive grinding material has high rigidity,
It is difficult for the abrasive to contact the inlaid surface uniformly. The brush described in Japanese Patent Laid-Open No. 2-232174
The shape of the rotary tool is that the bristle material is relatively thick
Only the thing is formed, and the cross-sectional shape of the bristle material is not uniform.
In such a bristle material, the material to be polished entered a curved surface or entered.
If it is a surface, polishing and grinding is difficult,
The surface precision is not sufficient. The object of the present invention is to solve these problems.
The surface of the abrasive material to be polished,
Highly efficient polishing and grinding is possible even on the embedded surface,
In addition, a polishing abrasive having good polishing accuracy and the polishing
It is to provide an easy manufacturing method of a cutting material. [0010] SUMMARY OF THE INVENTION The present invention is an inorganic continuous length.
A thin rod-shaped object in which a bundle of fibers aligned in one direction is hardened with resin
Abrasive polishing consisting of multiple fibers arranged in the fiber direction with a gap
Cutting material. And a woven or knitted fabric having an inorganic continuous long fiber bundle in the warp
Impregnated with a resin, and then the warp is woven or knitted
By pulling it out or removing the thread in the other direction.
And projecting the warp from the woven or knitted fabric for a predetermined length,
It is a method for manufacturing an abrasive material which solidifies the resin. The inorganic continuous filament of the present invention is, for example,
Luminous fiber, boron fiber, silicon carbide fiber, nitriding
At least silicon fiber, tyranno fiber, glass fiber, etc.
Is also one kind, and each may be commercially available. The fiber diameter is preferably about 3 to 40 μm.
It The larger this diameter, the better the polishing and grinding performance,
Polishing and grinding accuracy is reduced. On the contrary, this diameter becomes smaller
Highly accurate grinding surface, but grinding performance
Is reduced. Of inorganic continuous filaments applied to the fabric of the present invention
The bundle consists of about 100 to 10,000 filaments.
These are so-called tow, yarn, roving, etc. Cover
Mix two or more types of fibers depending on the material and shape of the abrasive material
You may use all together. The resin of the present invention includes epoxy resin and phenol.
Resin, unsaturated polyester resin, vinyl ester resin
Fat, alkyd resin, urea-formalin resin, polyimid
Thermosetting resin such as resin; polyethylene, polypropylene
, Polymethylmethacrylate, polystyrene, polysalt
Vinyl chloride, ABS resin, AS resin, polyacrylic
De, polyacetal, polysulfone, polycarbonate
G, polyphenylene oxide, polyether sulfo
Thermoplastics such as resins, polyetherketone, polyamide-imide, etc.
Resin: Styrenic Elastomer, Olefin Eras
Tomer, polyethylene elastomer, urethane elastomer
There are thermoplastic elastomers such as Stormer. Among these, epoxy resin, phenol
Resin, unsaturated polyester resin, vinyl ester resin,
A polyimide resin or the like is suitable. The ratio of the fiber to the resin is the volume ratio.
20 / 80-80 / 20, preferably 30 / 70-70
/ 30. If the ratio of the fibers is too small, polishing and polishing
Both the performance and accuracy of the fiber are low, and the ratio of the fibers is too high
And the resin is not sufficiently impregnated, the fiber should be sufficiently hardened.
Cannot be done, and the abrasive material is easily damaged. The shape of the thin rod-shaped article of the present invention is as follows.
The cross-sectional shape of various circles, various squares, crescent moon
Any shape such as a shape may be used. As the size of its cross section
Is the width in the longest direction and the longest in the direction perpendicular to it.
The width / thickness ratio is 1 to 50, where the length of the place is the thickness.
Thickness is about 0.05-2 mm, cross-sectional area is 0.005-2.
5 mm²Is. When the width / thickness ratio exceeds 50, the thin rod-shaped material is
The shape becomes so thin that the rigidity decreases and the
Sufficient polishing and grinding because the contact pressure to the abrasive is low
Performance cannot be expressed. The same applies when the thickness is too small
Is. If the thickness is too large, the rigidity becomes too high
It is difficult to contact the indented surface and it becomes difficult to grind and grind.
Regarding the cross-sectional area, too small ones have low rigidity and large
If it is too strong, the rigidity is too high, which is not preferable. The length of the thin rod-like material depends on the elastic modulus of the material,
Depending on the rigidity of the cross-sectional shape of the
The length is such that it has enough flexural strength to apply various pressures
Can be any length. If it is too short, the usage time will be short
It Depending on the use of the abrasive, the thin rod-shaped material
The number should be set. Performs uniform grinding and polishing
These are arranged in parallel with a gap in between
It If the thin rod is flat, align the directions to
Can be arranged diagonally, etc. according to the usage
It In other words, a flat shape or a three-dimensional shape with two or more layers
and so on. The gap is about 0.1 to 2 times the width of the thin rod-shaped material.
It is degree. This does not remove shavings or dissipate frictional heat.
For this reason, it is desirable to provide such a gap. An example of the method for producing the abrasive material of the present invention is shown.
You First, pass through at least one of the above-mentioned inorganic continuous long fiber bundles.
Uses woven and knitted yarns (hereinafter simply referred to as woven fabrics)
There is. The threads other than the warp threads of the woven fabric may be inorganic fibers, but
Natural fibers or synthetic fibers may be used. The fabric is impregnated with resin, but the resin is
It is the one mentioned above. The method of impregnation is so-called fiber
Well-known methods of manufacturing fiber reinforced resin prepreg can be applied.
Wear. A film of the resin is previously formed on the release paper.
Then, the membrane and the woven fabric are overlaid and heated and pressed to
A so-called dry method, which is another name for impregnating a resin inside a product
There is a hot melt method. In this method, mainly thermosetting
Resin can be applied. Alternatively, a solution containing the resin may be used.
The so-called impregnation by soaking the fabric in the bath
There are a wet method and another name solution impregnation method. This way, heat
Plastic resin, thermoplastic elastomer, thermosetting resin
It can be applied even if it is offset. Furthermore, the woven fabric is suspended in a powdery resin in a floating state.
There is a fluidized bed method in which the material is passed through and impregnated.
Plastic resins and thermoplastic elastomers can be applied. Next, the warp yarn is removed from the resin-impregnated woven fabric.
One of the methods to make a certain length of protrusion is a tree.
Before the fat is completely solidified, the warp threads are laid relative to each other in the entire fabric.
There is a method to move it. For example, with a press
Lightly press and hold the entire fabric, and then use one warp or
Place multiple jigs with a jig that has a pinch mechanism and move them
The warp with a jig that has a pinch mechanism.
All of the woven fabrics are sandwiched and fixed, and the whole fabric is pressed
Press lightly with, move this press machine and rush all at once.
There is also a way to get it out. Alternatively, other than warp at the end of the fabric
How to make the warp protrude by removing the yarn
is there. To remove the threads other than the warp, pull out the
There is a method of scraping it out in the direction of the warp. Especially textiles
This is suitable when the structure is a biaxial woven fabric. In any case, the protruding length is
Determined according to the intended use of the abrasive material. Subsequently, the impregnated resin is solidified.
The solidification method is not unique, and the type of resin and impregnation method
Inevitably determined by In other words, dry thermosetting resin
When impregnated by method b, heating press, heating oven,
Autoclave method, resin curing temperature
Heat to solidify. Impregnated with thermosetting resin by wet method
If it is, volatilize the solvent by a conventional method, then
To do. In addition, thermoplastic resin and thermoplastic elastomer are
If it is impregnated by the heating method, use a heating oven etc.
If the solvent is sufficiently volatilized and cooled by a conventional method,
Yes. In the case of the fluidized bed method, a heating device like an infrared furnace
After melting by heating at a temperature above the melting point of the thermoplastic resin using
Allow to cool and solidify. At the time of this solidification, the woven fabric is previously flat plate.
It may be shaped like a wavy shape, curved shape, cylindrical shape, etc.
It may be deformed depending on the purpose of use. Molded from a piece of the fabric
Although it may be an abrasive material to be used, a plurality of the woven fabrics before solidification
May be overlaid. Also, for overlapping the fabric
The thin rods may overlap at the same position, or they may differ from each other.
They may be overlapped with each other so that they overlap. Solidification is complete
And becomes an abrasive material in which thin rods are arranged. [0032] EFFECT OF THE INVENTION The abrasive material of the present invention is automatically and manually polished.
Suitable for both polishing, and also as a stick or a brush
Can also be used. In addition, it has an appropriate flexural strength.
And has a high degree of freedom, and also has multiple ground edges.
As a result, complicated polishing with curved surfaces
It is possible to polish the surface of the grinding material with high efficiency and accuracy.
is there. According to the manufacturing method of the present invention, the woven fabric is used as the base material.
It is easy to handle and the unique abrasive abrasives
It can be easily manufactured. [0033] EXAMPLES The present invention will be described in more detail below with reference to Examples.
It is not limited to this. Abrasive abrasive test, stainless steel
Flat plate and half plate (SUS304 Vickers hardness 145)
Pressure of 5 kg / m on a spherical surface with a diameter of 75 mm²20m / min over
Reciprocating at a speed of 25 cm, surface area 25 cm²Evenly the entire surface
Dry grinding and polishing, surface roughness and grinding required
Performance was evaluated by time. Surface roughness is a stylus type roughness meter
(Tokyo Seimitsu: SurfM 575A) is used for polishing and grinding.
The center line average roughness Ra (μm
 ), Maximum height Rmax (μm) and 10-point average roughness
Rz (μm) was measured. Example 1 Bisphenol A type epoxy resin (Sumiepoxy ELA
-134 Sumitomo Chemical Co., Ltd. 60 parts by weight, Crezo
Lunovo rack type epoxy resin (Sumiepoxy ESCN-
220 Sumitomo Chemical Co., Ltd.) 40 parts by weight, dicyan
5 parts by weight of diamide, 3- (3,4 dichlorophenyl)-
4 parts by weight of 1,1-dimethylurea and trichloroethylene
Dissolved in a mixed solvent of 1: 1 tetrahydrofuran and 1: 1
A solution having a concentration of 20% by weight was prepared. 15μ diameter
Mina fiber Altex (Al₂O₃85wt%, SiO₂ 15wt%: Housing
Through 1000 continuous long-fiber tows manufactured by Tomo Kagaku Co., Ltd.
Thread, and adjust so that the gap between the warp threads is 0.3 mm.
A woven fabric woven so that it is wrapped in polyethylene fiber
Pass the resin through the impregnation bath containing the epoxy resin solution, and
After impregnating the liquid with fat, it was air-dried for one day to remove the solvent. Two pieces of this woven fabric with a width of 20 mm and a length of 100 mm
Cut and separately sandwich the warp with a screw cock type jig 1
After pulling out 0 mm, the clamping pressure of the shaping roller is 1 kg / cm.²When
And shape it in a hot air circulation oven at 130 ° C.
To heat the epoxy resin for 2 hours to cure the epoxy resin. Cross-sectional shape
But width 1.0mm, thickness 0.35mm, cross section 0.35mm ²
And the number of thin rods having a fiber volume content (Vf) of 50% is 1
Five polishing abrasives and two polishing abrasives arranged in parallel were obtained. This polishing
An abrasive grinding test was performed using an abrasive. Table of evaluation results
Shown in 1. Example 2 In Example 1, the narrowing pressure of the shaping roller is 5 kg / cm.²When
The procedure is the same as above except that the cross section is 1.6 mm wide and 0.2 thick.
2mm, cross section 0.35mm²10 thin rods are arranged in parallel
A polished abrasive material was prepared. Tested as in Example 1.
It was The evaluation results are shown in Table 1. Example 3 A series of 1000 Altex alumina fibers with a diameter of 30μ
The use of woven fabrics made from continuous filament tow and the warp
Example 1 was repeated except that the yarn was pulled out by 20 mm.
Section width 1.88 mm, thickness 0.8 mm, cross section area 1.5 mm²
Two thin abrasives are lined up in a row to prepare two abrasives.
It was The evaluation results are shown in Table 1. Comparative Example 1 Bisphenol A type epoxy resin (Sumiepoxy ELA
-134 Sumitomo Chemical Co., Ltd. 60 parts by weight, Crezo
Lunovo rack type epoxy resin (Sumiepoxy ESCN-
220 Sumitomo Chemical Co., Ltd.) 40 parts by weight, dicyan
5 parts by weight of diamide, 3- (3,4 dichlorophenyl)-
4 parts by weight of 1,1-dimethylurea in trichloroethylene
A solution having a solid content of 20% by weight was prepared by dissolution. diameter
15μ alumina fiber Altex (Al₂O₃85 weight
%, SiO₂15% by weight: 500 Sumitomo Chemical Co., Ltd.
Of continuous long fiber tow was soaked in the epoxy resin solution.
Then, in a hot air circulation oven at 170 ° C. for another 3 minutes for 20 minutes
Heat at 0 ° C for 3 minutes to cure the epoxy resin,
It was wound on a drum with a diameter of 30 cm and the fiber volume content (V
f) 50%, sectional area 0.17 mm²I got the hair material. This hair
The material length is 20mm and 8 hairs are planted in 2φ holes to make one bundle.
8 holes in a zigzag pattern with 3mm gap between holes
Two arrayed toothbrush type brushes were produced. That
An abrasive grinding test was performed using a brush. Table of evaluation results
Shown in 1. Comparative Example 2 Commercially available stick-shaped grindstone, trade name Super Stone SW
110 (manufactured by Nippon Steel Co., Ltd., 15 μALF Altex
Abrasive that is hardened with epoxy resin, shape 1mm × 10mm × 1
00 mm) was used to perform an abrasive grinding test. Table of evaluation results
Shown in 1. [0040] [Table 1]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of an example of the abrasive material of the invention. [Explanation of Codes] Reference numeral 1 in the figure denotes a thin rod-shaped object. 2 indicates a warp portion of the woven fabric. Reference numeral 3 indicates a yarn other than the warp yarn of the woven fabric.

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Claims (1)

Claims: 1. Abrasive grinding comprising a bundle of inorganic continuous filaments aligned in one direction, and a plurality of thin rod-like objects fixed with a resin arranged in the direction of the fiber with a gap therebetween. Material. 2. The cross-sectional shape of the thin rod-shaped article has a width / thickness of 1 to
50, thickness of about 0.05-2 mm, cross-sectional area of 0.0
It is characterized in that it is from 05 to ^2.5 mm ² [Claim 1]
Abrasive abrasives. 3. A warp yarn is obtained by impregnating a woven fabric or knitted fabric having an inorganic continuous long fiber bundle as a warp with a resin, and then withdrawing the warp yarn from the woven fabric or knitted fabric or removing the yarn in the other direction. Alternatively, the method for producing an abrasive material according to claim 1, wherein the resin is solidified by protruding a predetermined length from the knitted fabric.