Continuous Basalt Fibers: Production Aspects and Simulation of Forming Processes.
I. Current Status of Processes for Producing Continuous Basalt Fibers.

Abstract

The papers that reflect basic stages in the production of continuous basalt fibers are reviewed. The effect of rheological and crystallization properties of basalt melts on the production of fibers is considered. It is established that the higher the ratio of viscosity to surface tension η/σ, the more stable the formation of fibers. Taking into account the crystallization ability, the melt viscosity determines a temperature range for the formation of fibers. Features of the process for producing fibers from mineral basalt raw material are determined. It is established that the temperature range for the formation of basalt fibers is narrower than that for glass fibers. This is related to more pronounced temperature dependence of viscosity and higher crystallization ability of basalt fibers. High wettability and high infrared absorption of basalt melts are factors that affect the effectiveness of the formation process. Therefore, it is needed to optimize the existing processes for producing continuous basalt fibers.