| 摘要 |
PURPOSE:To produce the above dense sintered body having superior machinability, dimensional accuracy, heat insulating property and heat resistance by kneading fluorine-contg. mica and calcium aluminoborosilicate glass powder with water, press-molding the kneaded material and sintering the molded body. CONSTITUTION:A powdery mixture of 40-60wt.% fluorine-contg. mica having <=325 mesh particle size with 60-40wt.% calcium aluminoborosilicate glass powder consisting of, by weight, 52-56% SiO2, 12-16% Al2O3, 20-25% CaO, 0-6% MgO and 8-13% B2O3 and having <=325 mesh particle size is kneaded with 6-12wt.% water. The kneaded material is molded to a desired shape by cold pressing and the molded body is sintered at 1,000-1,100 deg.C for 1-5hr in the air. |
