ARTIFICIAL STONE USING PULVERIZED STONE AND CRUSHED STONE OF GRANITE AND ITS PRODUCTION

摘要

PROBLEM TO BE SOLVED: To effectively use pulverized stones or crushed stones by-produced on the processing of granite for building materials, decoration materials, art materials, etc.;SOLUTION: This artificial stone using the pulverized stones or crushed stones of granite by melting the pulverized stones or crushed tones of the granite as raw materials comprises adding a basic oxide so that the concentration of SiO2 as the main component of the granite becomes ≤65 wt.%, or adding one or more of Li2O, Na2O, K2O and their carbonates and hydroxides in an amount of ≤25 wt.% (converted into the oxides) to convert the molten product of the granite into a highly flowable state, and then molding the molten product by a casting method, rolling method or floatation method. The oxide of at least one metal selected from the group Ti, Zn, Fe, Cu, and Cr may further be added in an amount of ≤40 wt.%, and melted to produce the compound of the metal oxide with the SiO2 as the main component of the granite. Thus, the development of a color accompanied by the production of the compound is utilized to form a pattern in the solidified granite matrix.;COPYRIGHT: (C)2000,JPO