Selection of coating for low Tg glass precision glass molding

Zhibin Wang; Mingyin Jiao; Yunlong Zhang; Feng Zhang; Zhongqiang Wang

doi:10.1117/12.2514699

16 January 2019 Selection of coating for low Tg glass precision glass molding

Zhibin Wang, Mingyin Jiao, Yunlong Zhang, Feng Zhang, Zhongqiang Wang

Proceedings Volume 10838, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 108381U (2019) https://doi.org/10.1117/12.2514699
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China

Abstract

With the development of precision glass molding (PGM), low Tg glass molded lens are more and more used in optical system, recently, especially in the fields of safe security and car assist system, which have large market demand. Coating technology for mold is one key of support technology for precision glass molding, and the researches on the coating for precision low Tg glass molding is urgently needed. In this paper, aiming at the coating technical demand of low Tg glass molding, the coating duration and damage principal are discussed after fast coating facility testing. Three kinds of coating system (W_xC_y-PtIr-D_ZK3,W_xC_y-CrAlN-D_ZK3, W_xC_y-TiAlN-D_ZK3)for molding are analyzed with SEM. The results show the PtIr alloy coating is suit for low Tg glass precision molding.

Citation Download Citation

Zhibin Wang, Mingyin Jiao, Yunlong Zhang, Feng Zhang, and Zhongqiang Wang "Selection of coating for low Tg glass precision glass molding", Proc. SPIE 10838, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 108381U (16 January 2019); https://doi.org/10.1117/12.2514699

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KEYWORDS

Coating

Precision glass molding

Glasses

Glass molding

Surface roughness

Scanning electron microscopy

Annealing

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