| 摘要 |
The inventions relate to means for producing high silicate inorganic fibres from natural acidic rocks and to articles made from said fibres, i.e. continuous and staple fibres and scaly particles. In each variant C., dacite or riodacide or granite or riolite or sandy rock whose content in silicium oxide is equal to or higher than 73 % is used as a rock. The aim of the inventions is to develop means for producing inorganic fibres from natural acidic rocks and articles made from said fibres, i.e. continuous, staple and coarse fibres and finely dispersed scaly particles exhibiting high strength, and corrosion and thermal resistance. The aim is achieved by removing foreig n inclusions, which have high fusion and boiling temperatures, from the melt b y using rocks with high silicon oxide (SiO 2) content and, therefore a high fusion temperature, thereby evacuating the major part of foreign inclusions from a melt into the atmosphere.
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