JPS60204689A - Dry manufacture of ceramic tile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing ceramic tiles, in which hard particles are projected onto a tile base to form an uneven surface shape on the surface of the tile base, in a method of carrying the ceramic tile into a firing kiln and firing the ceramic tile. Conventionally, the dry manufacturing method for ceramic tiles involves mixing clay, which is a plastic raw material, with gravel, pottery stone, etc., which is a non-plastic raw material, and feldspar, which is a solvent raw material, and adding water to the mixture, which is then crushed. After finely pulverizing with a machine and dehydrating with a puller press, or preparing clay-based clay by finely pulverizing it with a pulverizer, adding water to the mixture and kneading with a clay kneader to obtain clay. The molding process involves drying the clay, pulverizing it in a pulverizer, adjusting the moisture content to about 8%, and putting it into a mold. The basic process is to carry out the firing process in which the tile base is fired by placing the tower on a pallet and loading it onto a firing trolley, and then passing the firing trolley into a firing kiln. Due to the nature of the tile base, foreign matter may get mixed into the tile base during the forming process, scum may appear on the surface of the tile base, or the tile base may be unloaded onto or unloaded from the tile base firing truck. The yield of products is poor due to factors such as missing corners, and specifically, about 85% of the products are finished products, while the remaining about 15% are rejected as defective products. In view of the above-mentioned points, the present invention has been developed by completely projecting hard particles onto the surface of the tile base and processing the surface of the tile base into an irregularly uneven surface shape, thereby completely removing foreign matter and dirt on the surface of the tile base and It is an object of the present invention to provide a method for dry manufacturing ceramic tiles that makes it impossible to detect missing parts at the corners of the base material and exhibits a surface shape similar to that of natural stone.

Embodiments of the present invention will be explained with reference to all the attached drawings. First, a molding process is performed in which powdered clay whose moisture content is adjusted to about 8% is put into a mold (2) of a friction press (1) and then pressure-molded. The tile base material (Sl) is placed on a firing pallet and then loaded onto the firing trolley (8).
is carried into the firing kiln (4) and fired by passing through the pre-heating zone, firing table and cooling band in the firing kiln (4). The tile base (S) that has undergone the firing process is unloaded from the firing cart (8) and placed flat with the front side facing up on the conveyor (6), and is placed in the granule projection device (6) provided in the middle of the conveyor (5). ), and the particle projection device (6)
The entire surface is processed into an irregular, uneven surface shape by the spherical metal particles (γ) projected from the surface. During the above-mentioned forming and firing steps, water generation treatment is carried out by completely spraying alkaline water-soluble silicon (8) onto the tile base (S) whose surface has an irregularly uneven shape. be. father,
The surface processing step of projecting all the spherical metal particles (γ) onto the tile base 6) to give the surface an irregular uneven surface shape may be performed after the forming step and before the firing step. In some cases, there may be a slight difference in color tone compared to when surface-treated gold wire is used after firing.

In addition, during the process of this example, after forming and before firing, the granules (7) were projected onto the tile base (Sl) to form an irregularly uneven surface shape on the entire surface, and then a glaze was applied using a known glazing device. However, the gist of the present invention does not change even if the glazed tile base is fired.

The present invention is a dry manufacturing method for ceramic tiles known in the United States, in which hard particles are projected onto a tile base to form an irregular uneven surface shape on the surface of the tile base. Therefore, the tiles produced by the manufacturing method of the present invention have a surface shape similar to that of natural stone, giving the viewer a completely new impression of elegance, warmth, and gentleness compared to conventional tiles. Not only does it create a lot of interest, but by processing the surface of the tile base into an irregularly uneven surface shape, foreign matter and dirt on the surface of the tile base are removed, and defects such as corners of the tile base are removed. 'll become impossible to produce, so what would have been a defective product with the conventional manufacturing method becomes a first-class product, and specifically, the yield of about 85% is about 97~97%.
This is an extremely excellent invention that exhibits various effects, such as a dramatic improvement of up to about 98%.

[Brief explanation of drawings]

The drawings are overall schematic diagrams of steps showing an embodiment of the present invention. (1) Friction press (2) Mold (8) Firing cart (4) Firing kiln (5) Conveyor (6) Granule projection device (7) Massage (8) Alkaline water-soluble silicon (S) Tile material applicant: Yamanaka Ceramics Co., Ltd. 3

Claims (2)

[Claims] (1) In a method in which the tile base after molding is placed on a pallet and the tile base placed on the pallet is co-formed with the pallet, hard particles are projected onto the tile base after firing to change the surface shape of the tile base. A dry manufacturing method for ceramic tiles, which is characterized by all its processing. (2) Place the molded tile base on the pallet y),
Dry production of ceramic tiles, characterized in that the surface shape of the tile is processed by projecting hard particles entirely onto the tile base after shaping and before firing, in a method of firing tile bases loaded on pallets together with the pallets. Method.