JPH03254908A - Method of treating surface of stone material - Google Patents

Abstract

PURPOSE:To form recessed and protruded patterns on the surface, and make the finished surface into cracked skin color by splashing the surface of a stone material with liquid spouted from a spouting port at high pressure. CONSTITUTION:The method of treating the surface of a stone material is characterized such that liquid spouted at high pressure from a spouting port is splashed onto the surface of a stone material in order to form recessed and protruded patterns on the surface and, herein, water can be used for liquid that is spouted from the spouting port. In this instance, it is preferable that the spouting pressure of the liquid from the spouting port is to be 1000-3000kgf/cm<2>. Whereby, the color after a recessed and protruded finishment becomes the same cracked skin color as a polished finishment, and such finishment becomes possible even in thin plates.

Description

[Detailed Description of the Invention] [Industrial Application Field 1] The present invention relates to a method for forming irregularities on the surface of stone used as a surface material for walls, floors, etc. as interior and exterior materials for buildings. be.

[Prior Art] Traditionally, stones used as surface materials for walls, floors, etc., such as interior and exterior materials for buildings, have been processed with large and small irregularities on their surfaces for design reasons or to make them less slippery. There is. In order to form unevenness on the surface of stone, conventional methods such as ``mill finishing'', ``bisyan finishing'', ``tapping finishing 1'', or ``jet burner finishing'' have been used. .

[Problems to be Solved by the Invention] By the way, the above-mentioned "chilling finish", "bishan finish", and "pounding finish" basically involve colliding a knife, foreign object, etc. against the stone surface and scraping it off by the impact and friction. In addition, [jet burner finish] heats the stone to a high temperature to finely crush the crystals and make the surface rough, so the remaining crystals on the surface may have small scratches and scratches, making the overall whitish color and making the original crystals shiny. There is a problem in that the color is very different from that obtained by polishing the stone.Also, in any of the above methods, if the thickness of the stone is thin, the stone will crack, so at least 20+nta or more is required.

The present invention was invented in view of the problems of the conventional examples described above, and its purpose is to make the color after uneven finishing the same cracked skin color as polished finish, and to make it possible to process even thin sheets. To provide a method for surface treatment of stone.

[Means for Solving the Problems 1] In order to solve the problems of the above conventional example and achieve the object of the present invention, the stone surface treatment method of the present invention uses a liquid ejected from a spout at high pressure to treat the stone. By applying it to the surface, an uneven pattern was formed on the surface.

Here, the liquid spouted from the spout may be water.

Further, the stone may be a thin stone.

Also, the jetting pressure of the liquid from the jetting port is 1000 to 3000.
kgf Al112 is preferred.

[Operation] Thus, an uneven pattern is formed on the surface of the stone by spouting liquid at high pressure from the spout onto the surface of the stone.

The stone used in the present invention may be any stone used as a building stone, but granite and marble are usually used. Of these, granite is usually rough-finished for exterior walls and flooring, while marble is weak in terms of strength and physical properties, so it is used for interior walls and is rarely roughened. Furthermore, since granite is an igneous rock, it is an aggregate of crystals such as quartz, feldspar, plagioclase, and mica, whereas marble is a metamorphic rock formed by piles and has no crystallinity. For this reason, in the embodiments of the present invention, an example of granite that is usually treated with an uneven surface finish will be mainly explained.

In the present invention, first, a liquid spout such as a nozzle is installed on the surface of a stone (usually referred to as a slab material) that has been cut from raw stone to a predetermined thickness with a gouillamond cutter, band saw, wire cutter, etc. This method creates irregularities on the stone surface by spraying liquid at high pressure. here,
The liquid to be used is not particularly limited, and water, oil, an aqueous solution of inorganic substances (saline solution, etc.), etc. can be used, but water is preferable because it is cheap, easy to recover, and has little effect on the stone afterwards. It is the easiest to use (note that water for stone cutting is mixed with abrasives, so using water for stone cutting is inappropriate as it will damage the surface). The liquid (water) has a jetting pressure of approximately 1000-3000kgf from the jetting port, '=
m2 and ejects from a nozzle with an inner diameter of 0.1 to 0.3 m+o. Here, the liquid (water) is ejected from the spout at a pressure of about 1000-3000 kgf.
/i+o2 is because if the pressure is too low, there is a problem of uneven machining and it takes too much time, and if the pressure is too high, the machining is too deep, which makes it impossible to handle thin stones. There is. When spouting liquid onto the stone surface under the above conditions, the distance from the tip of the spout to the stone surface is approximately 10 to 80III+
It is better to If the distance from the tip of the spout to the surface of the stone is too short, the strength will be too high (t), resulting in poor efficiency, and if the distance is too short, the pressure will drop and workability will be poor. By applying high-pressure liquid to the surface of the stone as described above, water enters the voids between the crystal grains of the stone, and each bond is cut and removed by the pressure and the water pressure applied to the crystals themselves. Go. Since nothing other than water pressure is applied to each crystal surface left at this time, processing can be performed without damaging the crystal surface. Also, if you lengthen the processing time (the time the liquid is applied), you can cut deeper, and if you shorten it, you can cut shallower. Partial processing is possible.

For this reason, it is now possible to finish the surface of a thin plate without damaging the entire plate, which was previously impossible. In addition, by continuously changing the part that is hit by the ejected liquid, it is possible to process and finish a wide area similarly to the other methods. Further, if several jet ports are provided, processing can be completed efficiently. Further, by softening or vibrating the jet nozzle, it is possible to process the material widely and uniformly.

By the way, when comparing the method of the present invention and the conventional knot burner finish, the method of the present invention has almost the same color as the polished finish color (broken skin color), although it is not shiny.
Jet burner finishing results in a white surface, and in the case of granite according to the present invention, the depth of the unevenness is 0°5 to 411111 nm, but the jet burner finish has a depth of unevenness of 0.5 to 3+ nm, and it is also possible to create a workable plate. In the present invention, the thickness is 5 to 6+ nm or more in the case of granite, but the jet burner finish requires 20 to 301III11 or more. In addition, the depth of unevenness required for the floorboard to prevent slipping is usually 0.5.
A depth of about 11 to 11 is sufficient, but in the case of a shelved burner finish, it will be too deep than necessary.

[Example] The present invention will be explained in detail below with reference to Examples.

<Example> Japanese granite stone slab for floorboards (300 x 300 x 10 m
Pressure 1500 to make the surface of m) non-slip.
kBf 7cm2, φ0, 1.51I! Processing was performed by jetting water onto the stone slab for the floor board, which was placed at a distance of 401 Il 111 from the spout (nozzle) having a diameter of . At this time, the liquid was spouted and processed while moving the spout at a moving speed of 1 m/min (or the moving speed of the floorboard slate if the spout was not moved).

Comparative Example 1 Processing was carried out under the same conditions as in Example 2 above, except that the water jetting pressure was 800 kgf/coo2.

Comparative Example 2 Processing was carried out under the same conditions as in the above example except that the water jetting pressure was 2800 kgf/cm'.

In the example described in ``1'', the depth of unevenness on the surface of the floor stone plate is 0.
．． Surface irregularities of about 5 to 211 IIn were formed, resulting in an ideal finish. On the other hand, in the case of Comparative Example 1, stones flew off the surface of the floor stone board, creating unevenness between areas where four parts were formed and areas where no changes were made, resulting in a small anti-slip effect and problems in terms of design. Furthermore, in Comparative Example 2, the cutting depth was large, resulting in uneven thickness in the finished product.

[Effects of the Invention] In the present invention, an uneven pattern is formed on the surface of the stone by applying the liquid ejected from the spout under high pressure to the surface of the stone, so as described in 1. The color after the uneven finish is the same cracked skin color as the polished finish, and even thin sheets can be processed.

Claims (4)

[Claims] (1) A method for surface treatment of stone, characterized by forming an uneven pattern on the surface of the stone by applying liquid ejected from a spout at high pressure to the surface of the stone. (2) The stone surface treatment method according to claim 1, wherein the liquid spouted from the spout is water. (3) Claim 1 characterized in that the stone is a thin stone.
Stone surface treatment method described. (4) The jetting pressure of liquid from the spout is 1000 to 3000
2. The stone surface treatment method according to claim 1, wherein the surface treatment method is kgf/cm^2.