Patent ID: 8365554
Filing Date: 2013-02-05
Classification: C03B,C23C

Abstract:
1. A molding die for manufacturing a glass gob or a molded glass article, the molding die comprising: a substrate having a molding surface; a protection film containing chromium formed on the molding surface, in which protection film, an X-ray diffraction peak intensity of (110) plane of chromium is higher than an X-ray diffraction peak intensity of (200) plane of chromium, and a surface of the protection film is roughened to have an arithmetic mean roughness of no less than 0.005 μm and no more than 0.05 μm; and an intermediate film containing chromium formed between the substrate and the protection film, in which intermediate film, an X-ray diffraction peak intensity of (110) plane of chromium is no higher than an X-ray diffraction peak intensity of (200) plane of chromium.