SU996359A1 - Method for making ornamental material - Google Patents

Description

The invention relates to the production of building materials for decoration and can also be used in the production of other decorative items, such as jewelry.

A known method for producing a decorative colored material, comprising a voluminous-colored glass by introducing ceramic paints into the composition of the original glass. The resulting material has a uniform surface without any Lll pattern. The closest to the proposed technical essence is a method of producing foam glass by separate melting of the two compositions, one of which contains a reducing agent, and the other an oxidizing agent, mixing the melts and molding. foam glass with a single-colored surface, unpainted in mass 2.

The aim of the invention is to obtain a material imitating an iron semiprecious stone.

The goal is achieved in that according to the method of making a decorative material, including the separate melting of the glass batch of the two compositions, mixing the melts and molding, using the compositions crystallized at different temperatures, mixing is carried out by casting both melts into one mold, and after molding they are heat treated at the lowest crystallization temperature.

As a result of the proposed method, a material is obtained that simulates

10 agate, carnelian / shmu, nephrite, etc., as the melts supplied to the form do not mix with each other, but form exfoliated strains, concentric folded patterns, veinlets

15 and spot. As a result of crystallization at the lowest possible temperature, one of the glasses crystallizes completely, and the second only partially, to the state of opalescence, - as a result of which the pattern produced during casting appears.

Example 1. Use glass of the following composition, wt.%: Silicon oxide 55; magnesium oxide 17; oxide

Claims (2)

25 sodium 22; alumina 3; fluorine 3. A second glass of the following composition is used, wt.%: silicon oxide 54.5; magnesium oxide 17; sodium oxide 22} alkmini oxide 3; fluorine 3; hydroxide oxide 30 ma 0.5. In the first part, fluorine plays the role of -catalyst, in the second - fluorine and chromium oxide. The crystallization temperature of the glass of the first composition is 760 ° C of the second. The melts of these glasses at 1150 ° C are simultaneously poured into a tile shape of 5 cm x 5 cm and crystallized at 630 ° C. After crystallization, the glass with the oxide of hrsma becomes white, opaque, with a porcelain-shiny surface. Glass without chromium oxide after crystallization becomes opalescent, its color changes depending on the angle of incidence of the light flux from bluish to golden yellow. As a result, the tile surface has an opalescent pattern on a white background in the form of stains, veins, folded meanders (imitates opal). Example 2. A glass of the following composition is used, wt%: silicon oxide 46 sodium oxide 19j magnesium oxide 8; calcium oxide 4j alumina 4} iron oxide 2 potassium oxide 5; zinc oxide 3) phosphorus oxide 4; fluorine 5. The second glass used has the following composition, wt.% silicon oxide 46; sodium oxide 18.93 magnesium oxide 8; about calcium 4 aluminum oxide 4; iron oxide 2; zinc oxide 3; phosphorus oxide 4, - potassium oxide 5; fluorine 5 / titanium oxide 0.07. The crystallization temperature of the glass of the first composition is 790 ° C, the second 610 ° C. The melts of the glass are simultaneously drained into a tile of cm size 5 X 5 cm. After the molding, the sample is crystallized at 610 ° C. 3, the result is a cream-colored tile with an opalescent wearsm in the bridge and a vein. The color of opalescence from bluish-green to lemon-yellow depending on the angle of illumination (they tel cornelian). Example 3. A glass of the following composition is used, wt%: silicon oxide 59; sodium oxide 22; calcium oxide 2 magnesium oxide 2; potassium oxide 2 alumina 3; chelasia oxide 3; chromium oxide 2, zinc oxide 1; phosphorus oxide 1; fluorine 3. The second glass used contains the same components, but without zinc and phosphorus oxides, and fluorine contains 5 May,%. The crystallization temperature of glass of the first composition is 650 ° C, the second 700 ° C. At 1150 ° С melts of glasses are poured into the form of tiles. After solidification, it is crystallized at. As a result of crystallization, glass with phosphorus and zinc has grass-green color, opaque, porcelain-like. Glass without these components is opalescent from lemon yellow to matte blue and forms a banded structure on a green background (decorates green shma or jade, depending on the prevalence of the dark or light component). Thus, the invention allows to obtain products with a high degree of decorativeness. The invention The method of making a decorative material, including the five-way melting of glass batch of two compositions, the melting of the obtained melts and molding, is of a kind, so that, in order to obtain a material that imitates a semi-precious stone, the compositions crystallized at at different temperatures, the mixing is carried out by casting both melts into one mold, and after molding, heat treatment is carried out at the lowest crystallization temperature. Sources of information taken into account in the examination 1. Berezhnoy A.I. Sitallas and photosals. M., Mechanical Engineering, 1966, p. 216-218; 2. USSR author's certificate number 537957, cl. C 03 B 5/00, 1975 (prototype).