KR20170140501A - Method of manufacturing multiple polishing pad - Google Patents

Abstract

The present invention relates to a manufacturing method for an abrasive pad and, more specifically, to a manufacturing method for an abrasive pad which is attached to a tool or a machine at an industrial site, especially, a construction site, and applies both a wet process and a dry process when polishing industrial materials such as timber, metal, and stone, and can ensure shortened production hours and improved production flexibility. The manufacturing method for an abrasive pad can produce an abrasive pad for wet or dry polishing in a single method by improving the existing abrasive pad manufacturing method that is divided into wet polishing and dry polishing, can attach polishing tips of various shapes by exchanging a molding frame, can manufacture an abrasive pad for various purposes by differentiating composition ratios of materials, and can ensure shortened production hours and improved production flexibility compared to the existing manufacturing method. In addition, the manufacturing method for an abrasive pad comprises: a step of providing polishing resin; a step of fixing base cloth and positioning a molding frame; a step of forming a polishing tip; a step of hardening the base cloth; a step of cutting the base cloth; and a step of attaching a tool attachment means to the base cloth.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a multi-

The present invention relates to a method of manufacturing a polishing pad and, more particularly,

It is possible to apply both the wet method and the dry method for polishing industrial materials such as wood, metal, and stone,

To a manufacturing method of a polishing pad capable of shortening a production time and improving production flexibility.

Therefore, in the present invention, a molding method other than compression molding or screen printing is used,

It is possible to solve the above-mentioned problems by changing the composition ratio of the abrasive material, and the present invention has been completed on the basis thereof.

Therefore, the object of the present invention is not only to be applicable to both wet polishing and dry polishing, but also to shorten the production time,

And a method of manufacturing a polishing pad capable of improving ductility.

According to another aspect of the present invention, there is provided a method of manufacturing a polishing pad, Epoxy resin, urethane resin, ABS resin and phenol resin

At least one thermosetting resin selected from the group consisting of norbornene resins; Talc, cerium oxide, titanium oxide, copper, cobalt oxide and carbonate

And one or more selected from the group consisting of lubricants; And a pigment; The

The base cloth is fixed on the glass surface formed with a flat surface, and a metal or Teflon

Positioning a mold comprising a resin; The abrasive resin is injected into the molding die to form a polishing tip

Step; The mold was removed and the base cloth with the abrasive tip formed was first cured at 110 to 130 캜 for 2 to 4 hours

Then secondary curing at 140 to 160 캜 for 2 to 4 hours; Cutting the dried base cloth into a desired shape;

And attaching means for attaching the tool to the back surface of the base cloth.

The polishing pad of the present invention is obtained by mixing abrasive particles, a thermosetting resin, an increase in heat resistance, a lubricant,

A polishing resin is formed, the mixed resin is injected into a mold having a shape of a polishing tip to be molded, and then,

And heat-curing the fabric.

The abrasive component comprises a solid of four components such as abrasive particles, thermosetting resin, heat resistant material, lubricant and pigment, wherein

Since the abrasive grains correspond to the main material responsible for polishing, alumina, zirconia, diamond, nitrided

Boron, garnet, silicon carbide, and / or green carbon.

In the present invention, various abrasive grains are used together with diamonds widely used as abrasive grains in the past,

It is possible to provide a polishing tip applicable to both wet polishing and dry polishing. That is, the abrasive grains

And has a hardness characteristic relative to the resin.

When the amount of the abrasive grains increases in the relative mixing ratio of the abrasive grains and the resin, the grinding speed and hardness are increased,

It is necessary to mix a proper amount of abrasive particles with a heat resistant material and a lubricant.

Therefore, in the present invention, the amount of the abrasive particles to be used is preferably 15 to 60% by weight. When the workpiece is a strong material,

And if the workpiece is a weak material, the amount of abrasive material is increased. If the amount of the abrasive grains used is less than 15% by weight,

The workability is deteriorated due to the lowering of the speed, and when it exceeds 60% by weight, the amount of heat generated during the processing of the workpieces made of light material increases,

It tends to fall.

In order to form the abrasive tip of the present invention, the proportion of the resin is preferably 25 to 60% by weight, and the higher the ratio of the resin,

The amount of the abrasive grains to be used is relatively small, so that the hardness of the abrasive tip decreases. Conversely, the lower the ratio, the higher the hardness

Lt; / RTI >

The hardness of the abrasive tip should be adjusted according to the hardness of the abrasive to be polished. Usually, a strong abrasive agent uses a polishing hardness of a weak hardness,

Abrasive material with strong hardness is used for the abrasive.

The heat resistant material and the lubricant are used for increasing heat resistance and lubrication effect of the resin during polishing, and include talc, cerium oxide,

0.1 to 50% by weight of at least one selected from the group consisting of titanium oxide, copper, cobalt oxide and calcium carbonate is used.

In addition, 0.1-2 wt% of pigment may be added to adjust the color of the abrasive tip.

According to the method of the present invention, the mixture is mixed with a screw-type mixer and, when mixing,

To adjust the viscosity. The viscosity is adjusted within the range of 200 to 1,000 cps, preferably about 600 cps.

When the mixing process of the abrasive resin is completed, the base cloth is fixed on the glass plate having the horizontal surface secured by the double-sided tape,

A metal plate or a resin plate (Teflon resin) having a shape of a grinding tip is formed on a fixed cloth to form a molding frame,

The abrasive resin formed in the cavity is injected into the molding die, and the abrasive resin is seated in the perforated molding die,

The abrasive tip is formed on the cloth.

As described above, the viscosity of the abrasive resin is maintained at 200 to 1,000 cps, and the thickness of the molding, that is,

Since the thickness of the abrasive tip is determined, it is possible to produce polishing pads of various shapes and thickness by exchanging only the metal mold

All.

The molding frame may be made of a metal plate or a Teflon resin. If the frame is made of a metal plate,

In case of resin plate, it is possible to make various patterns by using laser cutting or water jet cutting

The pattern can be perforated.

In the present invention, since the polishing tip is formed by using a mold, the thickness of the tip can be easily adjusted,

have. Conventionally, in a method using a stencil or a silk screen, the forming mold must be changed according to the mesh of the abrasive grains,

There is a difficulty in the section. That is, it is necessary to adjust the thickness by attaching the emulsion on the silk, but there is a limitation in controlling the thickness of the emulsion

And it is difficult to put on the silk.

Then, the mold is removed immediately after the molding step, and the base cloth to which the resin is applied is dried in a dryer at 110 to 130 DEG C for 2 to 4 hours

, The volatile matter of the hardening agent is removed and then the secondary hardening is performed at 140 to 160 ° C for 2 to 4 hours to strengthen the abrasive

All.

By performing the two-step curing step, it is possible to completely dissipate the volatile matter of the curing agent and to obtain an appropriate hardness of the abrasive

And the production time can be shortened.

When the curing is completed, the base cloth may be cut to have various shapes such as circular, square, or belt. Base

When the final shape of the cloth is completed, a double-sided tape, a velcro tape

Or an adhesive is attached to complete the production of the polishing pad.

According to the present invention, it is possible to manufacture variously regardless of the kind of the base cloth,

It is easy to change the surface pattern by changing the molding frame,

There is a feature that can produce both expression and dry products.

Therefore, in the present invention, a molding method other than compression molding or screen printing is used,

It is possible to solve the above-mentioned problems by changing the composition ratio of the abrasive material, and the present invention has been completed on the basis thereof.

Therefore, the object of the present invention is not only to be applicable to both wet polishing and dry polishing, but also to shorten the production time,

And a method of manufacturing a polishing pad capable of improving ductility.

According to another aspect of the present invention, there is provided a method of manufacturing a polishing pad, Epoxy resin, urethane resin, ABS resin and phenol resin

At least one thermosetting resin selected from the group consisting of norbornene resins; Talc, cerium oxide, titanium oxide, copper, cobalt oxide and carbonate

And one or more selected from the group consisting of lubricants; And a pigment; The

The base cloth is fixed on the glass surface formed with a flat surface, and a metal or Teflon

Positioning a mold comprising a resin; The abrasive resin is injected into the molding die to form a polishing tip

Step; The mold was removed and the base cloth with the abrasive tip formed was first cured at 110 to 130 캜 for 2 to 4 hours

Then secondary curing at 140 to 160 캜 for 2 to 4 hours; Cutting the dried base cloth into a desired shape;

And attaching means for attaching the tool to the back surface of the base cloth.

As described above, the method of the present invention improves the manufacturing method of the polishing pad divided into the conventional wet polishing and dry polishing,

It is possible to produce polishing pads for wet and dry polish by the method, and various types of polishing tips can be attached

And it is possible to manufacture polishing pads for various purposes by changing the composition ratio of the materials,

And the production flexibility can be improved.

First, 30 wt% of epoxy resin, 1.5 wt% of diamond powder, 32 wt% of alumina powder, 16.5 wt% of talc, 19 wt% of cerium oxide

% And 1% by weight of pigments were blended to produce abrasive resin.

On the other hand, a base cloth (marigold having a heat-resistant temperature of 120 DEG C or more) is fixed on a glass plate with a horizontal surface secured by a double-sided tape,

, The shape of the abrasive tip was perforated by the etching method and a molding frame made of a copper plate having a thickness of 1.5t was provided. Then, the abrasive resin was injected into the molding die by adjusting its viscosity at about 600 cps using alcohol,

The abrasive resin was placed inside the mold.

After the forming step, the forming mold is removed and the base cloth coated with the polishing resin is dried in a dryer at about 120 캜 and about 150 캜

And then cured by heat treatment for 3 hours each. After the curing was completed, the outer periphery of the base cloth was cut into sheets. The bay

A polishing pad was fabricated by attaching Velcro to the back of the base cloth for the connection between the spanner and the tool.

The abrasive pad was used to polish the stone (marble) both wet and dry, and all had a glass polishing effect.

Claims (5)

Abrasive particles; A thermosetting resin selected from the group consisting of an epoxy resin, a urethane resin, an ABS resin and a phenol resin;
A heat resistant material and a lubricant selected from the group consisting of talc, cerium oxide, titanium oxide, copper, cobalt oxide, and calcium carbonate; And
Providing a polishing resin mixed with a pigment;
A base cloth is fixed on a glass surface formed in a plane, and a metal or a Teflon
Placing a forming mold made of rhen resin;
Injecting the polishing resin into the forming die to form a polishing tip on the base surface;
After the mold is removed, the base cloth having the formed abrasive tip is first cured at 110 to 130 캜 for 2 to 4 hours,
Secondary curing at 60 占 폚 for 2 to 4 hours;
Cutting the dried base cloth into a desired shape; And
And attaching means for attaching the tool to the back surface of the base cloth. The method of claim 1, wherein the abrasive particles are selected from the group consisting of alumina, zirconia, diamond, boron nitride, garnet, silicon carbide,
Wherein the polishing pad is selected from the group consisting of green carbon. The abrasive according to claim 1, wherein the abrasive resin comprises 15 to 60% by weight of abrasive particles, 25 to 60% by weight of a thermosetting resin, 0.1 to 5%
0 wt% and a small amount of pigment. 2. The polishing pad according to claim 1, wherein the forming die is formed by etching, laser cutting or water jet cutting.
≪ / RTI > The polishing pad manufacturing method according to claim 1, wherein the attaching means is an adhesive, a Velcro tape or a double-sided tape
method.