JPH01141885A - Production of slate - Google Patents

Abstract

PURPOSE:To obtain the title high-quality slate having excellent strength, moisture-proof property, and luster by infiltrating a mixed resin into a slate of fixed size cut out from a stone block, drying the slate, and polishing the surface. CONSTITUTION:A slate of fixed size cut out from a porous and coarse stone block (e.g., sandstone) is polished, as required, with a coarse abrasive and then with a medium abrasive, and completely dried. A liq. mixed resin of a styrene monomer, a solvent, and a curing agent and further added, if necessary, with chamotte is cast over the polished surface and infiltrated into the slate. The slate is completely dried in a dryer for about 20hr until the resin is cured. The surface is polished with an abrasive such as diamond #400 and then with a finer abrasive such as diamond #800.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for manufacturing a stone plate in which porous and open stone is treated with a resin to improve qualities such as strength, moisture resistance, and gloss.

[Prior art and its problems]

Most of the stone produced in Okinawa Prefecture is porous and has open beards, which makes it difficult to close and has problems with strength.It is also highly hygroscopic, so it does not shine even when polished, so it is used as a building material. It was unsuitable for use.

[Purpose of the invention]

The present invention provides a stone plate manufacturing method for improving the quality of strength, moisture resistance, gloss, etc. by processing the above-mentioned porous stone with open beards with resin, and producing stone suitable for architectural panels or tiles. The purpose is to provide.

[Means for solving problems]

In order to achieve the above object, the present invention impregnates a stone slab cut out from a stone block with a blended resin, fills the holes or R's of the stone slab with the blended resin, and after drying,
It is characterized by its surface being polished to give it a glossy finish.

〔Example〕

This will be described in detail below along with examples.

The stone material used as the base material is, for example, coal rock, sandstone commonly called rock stone, pumice, etc., cut into stone slabs of appropriate size, for example, a square with a negative side of 30c+a and a thickness of 10B or more. For cutting, it is preferable to use, for example, a rotary saw with a diamond blade, a so-called diamond cutter.

The cut stone slab is impregnated with a blended resin to be described later. Preferably, the surface of the stone slab, for example, only the top surface, or the top surface and back surface, or in some cases the top surface, back surface, and side surfaces, is polished beforehand. . This polishing is preferably done with a coarse-grained gf polishing agent (e.g. diamond #100),
Next, use a medium-grain abrasive (e.g. Diamond #40).
0).

Then, it is completely dried in the sun or in a drying tank or drying room equipped with heating and blowing equipment.

After completing the above drying process, the stone slab is impregnated with a blended resin.

The above blended resin is a resin material such as styrene monomer 50
cc, 1,000 cc of a solvent for the resin material, such as Ebori Gorasok or Gelcoat, and a hardening agent, such as Vermec 3 cc.
Mix. After blending, a liquid blended resin is immediately completed. In addition to the above-mentioned resin material, hardening agent, and solvent, the extraction may also be performed by preparing igneous rock or limestone powder, stone powder that is a mixed powder thereof, or a mixed material of the stone powder and sand. To make it less noticeable, add about 2 kg to 2.5 kg of the above stone powder to the above blended resin, and if it is suitable for sandstone, add 1 kg of the above stone powder.
and 1 kg of sand were added to the above blended resin.

To impregnate the stone slab with such a blended resin, 1. For example, gradually pour about 50 cc of the blended resin onto the surface of the stone slab.
Use a metal spatula or roller to level the resin mixture evenly on the stone plate. Other methods include applying the resin over and over again with a brush, spraying it with an instrument such as a spray gun, or dipping the stone into a suitable container containing the resin mixture. At this time, if stone powder or sand is mixed with the above blended resin, stir the entire blended resin while stirring the stone plate to prevent the stone powder or sand from settling.
It's good to do that. In addition, after immersing the stone slab in the container, the pressure inside the container can be reduced using a vacuum pump or the like after closing the lid to keep it airtight, so that the resin mixture can be efficiently impregnated into the stone slab. can.

Note that when leveling the blended resin with a metal spatula or the like to soak it in, approximately 5Qcc of blended resin is required per stone slab, but this will vary depending on the properties of the stone slab. Furthermore, in the case of manufacturing tiles and the like whose main purpose is waterproofing, it is economical to apply a rough coat and apply another coat after drying, since the amount of blended resin used is small.

After completing the above steps, the stone slab impregnated with the blended resin is dried using a drying device equipped with, for example, a temperature control device, a circulation blower device, and the like. This drying is carried out until the above-mentioned blended resin is solidified, and the required time varies depending on the temperature, but is approximately 20 hours.

Next, polish the stone plate with an abrasive (for example, diamond #400).
), and then polish with a finer grain abrasive (for example, Diamond #800) to reveal the original surface of the stone slab.

Next, the product is polished with a coarse polishing stone (for example, #400), then polished with a fine polishing stone (for example, #800), and finally finished with a puff.

In addition, when manufacturing tiles in which a blended resin mixed with stone powder, etc. is filled into the hollow part of limestone, so-called blind tiles, if the blinding is incomplete, approximately 10 cc of blended resin is required.
Repeat the above process by soaking the stone board again.

〔Effect of the invention〕

As explained in detail above, according to the manufacturing method of the present invention, the blended resin is filled in the hollow areas of the porous stone, so the upper stone plate with a high moisture-proofing effect is used. Obtainable. In addition, resources that could not be saved in the past can be used effectively, resulting in resource economic effects.

Claims (1)

[Claims] A stone plate production method in which a stone plate of a certain size is cut out from a stone block, the stone plate is impregnated with a blended resin, and after drying, the surface of the stone plate is polished.