Process for producing calcium silicate insulation

摘要: Calcium silicate insulation consisting mainly of long, mutually entangled, fibrous synthetic xonotlite crystals and having a bulk specific gravity 0.10 to 0.20 g/cm 3 is produced at very low cost without using any asbestos fibers by stirring fine scattered ashes mostly amorphous silica, generated from furnaces where metallic silicon, silicon carbide, ferrosilicon, etc. are produced, with lime raw materials water heating, thereby obtaining gel; kneading the gel under pressure, viscoelastic material just before transition crystals; pouring in mold; treating placed mold saturated steam, forming crystals, successively superheated effecting growth drying crystals.