シラスバルーン原料としての軽石流の適性について
1974 年 90 巻 1031 号 p. 39-44
詳細
1974 年 90 巻 1031 号 p. 39-44
The authors have already found that the hollow glass micro-sphere (Shirasuballoons) could be produced from the fine particles of volcanic glass in the “Shirasu” from Furue-machi, Kanoya-shi, Kagoshima-ken. They investigated in this study the possibility of producing the Shirasuballoons from the Shirasu and Shrasu-like pumice flows occurred in various districts in Japan. Some results obtained are summarized as follows:
(1) It was able to produce the hollow glass micro-sphere at any rate from the all samples used in this experiment. Especially, the pumice flow containing much more glass particles of massive-type with smooth surface was most useful for the manufacture of good Shirasuballoons in high yield.
(2) For the manufacture of finer Shirasuballoons of high quality in higher yield, it was better to use the particles of size-range 20-74μfrom Makubetsu, Towada, Hayato and Ebino. And the particles of size-range 149-297μfrom Makubetsu, Date, Izumi, Hayato and Ebino couid be used as a material for coarse-grained Shirasuballoons.
