RU2400440C1 - Raw mixture for manufacturing of material imitating volcanic lava - Google Patents

Abstract

FIELD: construction. ^ SUBSTANCE: invention relates to production of fabricating materials, which may be used to manufacture desk sets supports, souvenirs, bijouterie. Raw mix for production of material imitating volcanic lava contains the following components in wt %: crushed glass 92-93.8; chalk 0.2-0.5; clay 1-2; powder of iron-based alloy 1-2; polianite 2-5. ^ EFFECT: development of material, which looks like volcanic lava, material is strong, water resistant, has low-porosity structure, colour from brown to black. ^ 1 ex, 1 tbl

Description

The invention relates to the field of technology of silicates and for the production of ornamental materials that can be used for the manufacture of coasters of desktop writing instruments, souvenirs, jewelry.

Known raw mix containing ground cullet and chalk [1].

The objective of the invention is to obtain a material that simulates "volcanic lava."

The technical result is achieved by the fact that the raw material mixture for the manufacture of a material that simulates "volcanic lava", including ground glass and chalk, additionally contains clay, an alloy powder based on iron and pyrolusite, in the following ratio, wt.%: Ground glass 92-93 ,8; chalk 0.2-0.5; clay. 1-2; iron-based alloy powder 1-2; pyrolusitis 2-5.

To obtain a material that simulates “volcanic lava”, any silicate glass (cullet) can be used, for example, of the following types:

- glass containers, characterized by the following chemical composition, wt.%: SiO ₂ 73,0; Al ₂ O ₃ + Fe ₂ O ₃ 3.0-3.5; CaO + MgO 10.0; K ₂ O + Na ₂ O 14.5;

- sheet glass, characterized by the following chemical composition, wt.%: SiO ₂ 71.7-72.4; Al ₂ O ₃ + Fe ₂ O ₃ 2.0-2.4; CaO 6.4-6.8; MgO 3.9-4.3; K ₂ O + Na ₂ O 14.5-14.9;

- architectural glass, characterized by the following chemical composition, wt.%: SiO ₂ 72.5-74.5; Al ₂ O ₃ 0.8-1.0; CaO 6.0-6.3; MgO 3.3-3.4; Na ₂ O 5.4-16.0; SO ₃ 0.4-0.5.

The composition of the mixture can be used, for example, clay, containing, wt.%: SiO ₂ 60,0-80,0; Al ₂ O ₃ + TiO ₂ 5.0-20 + 0; Fe ₂ O ₃ + FeO 3.0-10.0; CaO up to 25.0; MgO up to 3.0; Na ₂ O + K ₂ O 1.0-5.0; SO ₂ up to 3.0; p.p.p. to 15.0.

The composition of the mixture can be used powder (finely ground chips) of any alloys based on iron, preferably steel.

The table shows the composition of the raw mix for the manufacture of a material that simulates "volcanic lava."

Components Composition, wt.%: one 2 3 Ground glass 93.8 92 92.1 a piece of chalk 0.2 0.5 0.9 Clay 2 one one Iron Alloy Powder - steel 2 1,5 one - cast iron - - - Pyrolusitis 2 5 5

The fabrication of the material is illustrated by the following example.

Glass (cullet), honey, clay, an iron-based alloy (shavings) are ground in a ball mill until it passes through the 008 grid. Powdered components (ground glass, chalk, clay, iron-based alloy powder, pyrolusite) are metered in the required quantities and mixed up.

The resulting raw material mixture is placed in steel molds, previously lubricated inside with a kaolin-based caste. Forms filled with a mixture of about 2/3 are placed in an electric furnace, where they are heat-treated in the temperature range of 820-950 ° C. The resulting material is annealed to relieve internal stresses and subjected to mechanical processing (cutting, turning, grinding).

The material is durable, water-resistant, has a slightly porous structure, has a color from brown to black, in appearance resembles a “volcanic lava”.

The source of information

1. Duderov I.G. et al. General technology of silicates. - M .: Stroyizdat, 1987. - P.529-531.

Claims (1)

The raw material mixture for the manufacture of a material simulating volcanic lava, including ground glass and chalk, characterized in that it further comprises clay, an iron-based alloy powder and pyrolusite in the following ratio, wt.%: Ground glass 92-93.8; chalk 0.2-0.5; clay 1-2; iron-based alloy powder 1-2; pyrolusitis 2-5.