Purpose: Purpose of this paper: Results of the study of wear phenomena of cascade spinning rolls during stone wool production process are described. Design/methodology/approach: The study were based on direct process observations, chemical analysis and temperature measurements of basalt lava, metallographic examinations of the spinning rolls deposits. Findings: It was showed that the deposits of spinning rolls are worn in very different way, depending on the roll position in rolls cascade. Predominant wear phenomena are high temperature erosion, molten basalt lava (molten salt) corrosion, high temperature corrosion-oxidation, high temperature metal-ceramic abrasion wear, thermal fatigue of the working surface of spinning rolls. Research limitations/implications: The mechanisms of high temperature erosion demands further investigations and detailed studies. Practical implications: The wear resistance of basalt lava spinning rolls can be increased. Originality/value: The mechanisms of surface layer wear of basalt lava spinning rolls were determined.
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