Citation

Jin J, Yao Z, Liu L, Zhang J, Zhou G, Wang P. China Saf. Sci. J. 2020; 30(1): 53-60.

Copyright

(Copyright © 2020, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2020.01.010

PMID

unavailable

Abstract

In order to study heated trace features of polyester coated galvanized steel sheet, thermoplastic acrylic coated galvanized steel sheet was selected as research object, and features of its heated trace under different temperature and duration was discussed based on thermogravimetric analysis of its coating. The results show that the coating obviously undergoes pyrolysis carbonization when temperature rises to 360 ℃, resulting in mass loss of steel. With cracking and shedding of the coating at temperature between 410 ℃ and 590 ℃, steel mass further decreases. As galvanized layer exposes and oxidizes at 600 ℃, steel plate is exposed and oxidized, resulting in recovery of mass, and multi-layer and non-uniform heating traces are presented for the whole plate caused by oxidization of its parts at different degree. Comparatively, influence of heating duration on traces is more significant at higher temperature. © 2019 China Safety Science Journal

Language: zh