| 摘要 |
PROBLEM TO BE SOLVED: To provide a turn mold blowing method of a glass product capable of forming a clear engraving pattern on a thin glass bottom part, and producing high-grade glass having a thin trunk.SOLUTION: A glass seed P is subjected to turn blow molding in a finishing mold by a rough mold. A glass product having a pattern formed on a bottom part is produced. The finishing mold 1 is constituted separably into a body mold 1A and a bottom mold 1B. After blowing the glass seed P into the finishing mold 1, only the body mold 1A is rotated in the state where the bottom mold 1B is fixed. The glass seed P is extracted, while rotating the body mold 1A.SELECTED DRAWING: Figure 1 |
