| 摘要 |
FIELD: chemistry.SUBSTANCE: method of producing wollastonite-based ceramic articles includes preparing an aqueous slurry from a mixture of natural wollastonite, clay and vermiculite, moulding articles, drying and firing. The mixture for the slurry contains the following components, wt %: wollastonite - 50-65; vermiculite - 15-20; clay - 5-10; alumina cement - 15-20. the slurry is prepared in a mixer by mixing for not more than 30 minutes while adding water in amount of 40-45% of the weight of dry components, and the articles are moulded with bumping-down in nonporous moulds.EFFECT: low thermal conductivity density, high heat-resistance and chemical resistance to molten aluminium.7 ex |
