Heated trace features of galvanized steel plate coated with polyester

doi:10.16265/j.cnki.issn1003-3033.2020.01.010

China Safety Science Journal ›› 2020, Vol. 30 ›› Issue (1): 61-65.doi: 10.16265/j.cnki.issn1003-3033.2020.01.010

• Safety engineering technology • Previous Articles Next Articles

Heated trace features of galvanized steel plate coated with polyester

JIN Jing¹, YAO Zijia¹, LIU Ling¹, ZHANG Jinzhuan¹, ZHOU Guangying², WANG Ping³

1. School of Fire Protection Engineering, Chinese People's Police University, Langfang Hebei 065000, China;
2. Daqing Fire Rescue Brigade, Daqing Heilongjiang 163000, China;
3. Langfang Fire Rescue Brigade, Langfang Hebei 065000, China

Received:2019-10-10 Revised:2019-12-21 Online:2020-01-28 Published:2021-01-22

Abstract

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.

Key words: galvanized steel sheet, polyester coating, thermogravimetric analysis, heated traces, high-temperature oxidation

CLC Number:

X928. 7

JIN Jing, YAO Zijia, LIU Ling, ZHANG Jinzhuan, ZHOU Guangying, WANG Ping. Heated trace features of galvanized steel plate coated with polyester[J]. China Safety Science Journal, 2020, 30(1): 61-65.

References

[1] NFPA 921-2017,Guide for fire and explosion investigations[S].
[2] CHEN R Y, YEUN W Y D. Review of the high-temperature oxidation of iron and carbon steels in air or oxygen[J]. Oxidation of Metals, 2003, 59(5): 433-468.
[3] BERTRAND N, DESGRANDES C, POQUILLON D. Iron oxidation at low temperature(260-500 ℃) in air and the effect of water vapor[J]. Oxidation of Metals, 2010, 73(1): 139-162.
[4] GLEESON B, YOUNG D J. High temperature corrosion and oxidation of metals[J]. Oxidation of Metals, 2011, 75(3/4): 121-123.
[5] BONIARDI M, CASAROLI A. Influence of heat on non-ferrous objects: metallurgical analysis in fire scene investigations[J]. Fire Technology, 2014, 50(6): 1 335-1 356.
[6] BONIARDI M, CASAROLI A. In-depth approach to fire investigations: microstructural analysis of metallic materials[J]. Fire and Materials, 2015, 39: 600-618.
[7] XIE Dongbai, SHAN Guo, SHI Deng, et al. Investigations on oxidation and microstructure evolution of pure Cu in simulated air-kerosene combustion atmospheres[J]. Fire and Materials, 2016, 41(6): 614-624.
[8] XIE Dongbai, SHAN Guo, LU Shilei. Oxidation behavior of carbon steel in simulated kerosene combustion atmosphere: a valuable tool for fire investigations[J]. Fire and Materials, 2017, 42(2): 156-163.
[9] 孙强, 陆守香. 火灾环境下具有弹性支座钢构件的稳定性能[J]. 中国安全科学学报, 2004, 14(2): 20-23.
SUN Qiang, LU Shouxiang. Stabilizing performance of steel members with elastic support under fire condition[J]. China Safety Science Journal, 2004, 14(2): 20-23.
[10] 牛会永, 周心权, 贾雨成. 基于金相分析技术的煤矿火灾事故调查试验研究[J]. 中国安全科学学报, 2010, 20(8): 71-75.
NIU Huiyong, ZHOU Xinquan, JIA Yucheng. Experimental research of fire accident investigation in coalmine based on metallographic analysis technique[J]. China Safety Science Journal, 2010, 20(8): 71-75.
[11] 陈克, 刘振刚, 邓松华, 等. 汽车车身燃烧残留痕迹特征的研究[J]. 消防科学与技术, 2007, 26(1): 101-103.
CHEN Ke, LIU Zhengang, DENG Songhua, et al. Study on characterist ics of burn patterns of vehicle body[J]. Fire Science and Technology, 2007, 26(1): 101-103.
[12] 鄂大志, 毛克明, 张明. 火灾现场金属变色痕迹识别智能方法[J]. 消防科学与技术, 2016, 35(12): 1 769-1 772.
E Dazhi, MAO Keming, ZHANG Ming. Intelligent identification method for mental color trace in fire scene[J]. Fire Science and Technology, 2016, 35(12): 1 769-1 772.
[13] 张雪宁, 邓亮, 张宇澍. 镀锌钢板受热氧化痕迹试验研究[J]. 消防科学与技术, 2017, 36(6): 880-885.
ZHANG Xuening, DENG Liang, ZHANG Yushu. Experiment study on thermal oxidation trace of galvanized steel sheet[J]. Fire Science and Technology, 2017, 36(6): 880-885.

Heated trace features of galvanized steel plate coated with polyester

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 3

Recommended Articles

Metrics

Comments

[1]	LI Xiaoxi, TAN Bo. Dynamic analysis and optimization of coal spontaneous combustion inhibitors [J]. China Safety Science Journal, 2017, 27(6): 79-84.
[2]	XIE Qihang, ZHANG Jinfeng, LI Yanli, ZHENG Yanmin, WANG Hao, LIU Xiaokai. Thermodynamic study on explosion mechanism of 7-ACA dust [J]. China Safety Science Journal, 2017, 27(11): 49-54.
[3]	. Study on An Improved Ignition Activation Energy Method for Evaluating Spontaneous Combustion Characteristics of Low Metamorphic Coal [J]. China Safety Science Journal, 2013, 23(10): 27-.