MOLDING DIE, METHOD FOR MANUFACTURING MOLDING DIE, METHOD FOR MANUFACTURING GLASS GOB, AND METHOD FOR MANUFACTURING MOLDED GLASS ARTICLE

摘要

<P>PROBLEM TO BE SOLVED: To provide a molding die in which increase of the surface roughness due to crystal growth of chromium oxide is restrained, and thereby allowing long term use without deteriorating surface roughness of a glass gob or a molded glass article, and to provide a method for manufacturing the molding die, a method for manufacturing the glass gob and a method for manufacturing a molded glass article. Ž<P>SOLUTION: The molding die is provided with a substrate having a molding surface and a protective film containing chromium formed thereon. The protective film has the X-ray diffraction peak intensity of (110) plane of chromium higher than the X-ray diffraction peak intensity of (200) plane. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž