METHOD FOR FABRICATION QUARTZ-CRUCIBLE

摘要

According to the present invention, a manufacturing method of a quartz crucible includes: a first step of molding a reused silica layer (20a) by forming the thickness of the reused silica layer (20a) on the bottom surface of a rotating mold (10) which is same with the thickness of the reused silica layer (20a) on a side surface; a second step of molding a silica layer for molding (120 a) by forming the thickness of the silica layer for molding on the bottom surface of the rotating mold which is same with the thickness of a silica layer for molding a side surface; a third step of melting the silica layer for molding by providing arc discharge heat to the inside of the mold; and a fourth step of post-treating after extracting the quartz crucible of which growth of the silica layer for molding is completed.