搪玻璃用热轧中厚钢板氢穿透时间及贮氢性能

doi:10.13228/j.boyuan.issn0449-749x.20220388

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摘要搪玻璃用中厚钢板是制作搪玻璃设备的关键材料,要求钢板在搪玻璃过程中具有良好的贮氢性能和抗鳞爆性能,但长期以来主要使用普通压力容器用中厚钢板Q245R,极易产生鳞爆。因此,对比常用的含0.16% C+0.013% Ti(质量分数)的热轧正火态中厚钢板Q245R,设计并工业化生产了w(C)=0.10%、w(Ti)=0.10%的搪玻璃用热轧中厚钢板B245GT,通过光学显微镜、渗氢试验和透射电镜等研究和对比分析了厚度为20 mm的2种钢板在表层、厚度1/4处和1/2处的显微组织、氢穿透时间和贮氢性能,观察并分析了B245GT中的析出相。结果表明,Q245R钢板的显微组织由带状珠光体和铁素体组成,而B245GT钢板由铁素体和极少量珠光体组成,珠光体组分远低于Q245R。对测定氢穿透时间的试样厚度归一化后,Q245R沿不同厚度处的氢穿透时间TH₂介于2.7~4.4 min/mm²,均远低于阈值6.7 min/mm²,B245GT钢板沿不同厚度处的TH₂为11.6~13.6 min/mm²,显著高于Q245R和阈值。比较不同厚度处的TH₂可以看出,Q245R钢板表层的TH₂最高、1/2厚度处即中心层的最低,而B245GT 1/2厚度处的TH₂最高、表层的最低,且从表层到1/4厚度处和1/2厚度处更加均匀。因此,w(C)≤0.10%、w(Ti)≥0.10%的B245GT中,足量的合金元素钛形成含钛的夹杂物和析出相是有益的贮氢陷阱,大量的第二相粒子显著地提高了钢板在搪玻璃过程中的贮氢性能和抗鳞爆性能,完全满足搪玻璃设备的制作要求。

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	孙全社
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关键词 ：搪玻璃用中厚钢板, 鳞爆, 氢穿透时间, 贮氢性能, 显微组织, 析出相

Abstract：The hot-rolled steel plates are the key materials to manufacture glass-lined equipment,which requires excellent hydrogen storage ability and fishscale resistance during glass lining. However,fishscaling occurs frequently due to the application of Q245R,a grade of steel plate for boilers and pressure vessels,for decades. Compared with the hot-rolled and normalized steel plate Q245R which contains 0.16% C and 0.013% Ti,one new grade of hot-rolled steel plate B245GT for glass lining which contains less than 0.10% C and more than 0.10% Ti,were designed and mass-produced. The microstructures,hydrogen permeation time and hydrogen storage ability of two steel plates from the surface layer to 1/4 and 1/2 in thickness of the plates,which are both 20 mm in thickness,were studied by optical microscopy,hydrogen permeation test,TEM,and the precipitates in the steel plate of B245GT are observed and analyzed. The results show that the microstructure of Q245R is composed of banded pearlite and ferrite,and B245GT consists of ultra-low fraction of pearlite,much lower than that of Q245R. Hydrogen permeation time,TH₂,of Q245R,is between 2.7 and 4.4 min/mm² for surface layer,1/4 and 1/2 in thickness,much lower than the threshold of 6.7 min/mm². On the contrary,TH₂ of B245GT is between 11.6 and 13.6 min/mm² for different thickness points,are much higher than that of Q245R and the threshold. As far as the different layers in thickness were concerned,TH₂ of the surface layer is the highest and 1/2 in thickness is lowest for the steel plate Q245R,and 1/2 in thickness is highest and the surface layer lowest,which is more uniform and different characteristic with Q245R. Thus,the addition of adequate alloyed element of titanium in B245GT to form inclusions and precipitates of titanium,is helpful for hydrogen traps. Large amount of second particles remarkably improves the hydrogen storage ability and fishscale resistance of steel plate during glass-lining process,to meet the manufacturing requirement of glass-lined equipment.

Key words： steel plate for glass lining fishscale hydrogen permeation time hydrogen storage ability microstructure precipitate

收稿日期: 2022-06-01

引用本文:

孙全社, 徐春, 魏娇, 王双成. 搪玻璃用热轧中厚钢板氢穿透时间及贮氢性能[J]. 钢铁, 2022, 57(12): 161-168. SUN Quan-she, XU Chun, WEI Jiao, WANG Shuang-cheng. Hydrogen permeation time and hydrogen storage ability of hot-rolled steel plate for glass lining[J]. Iron and Steel, 2022, 57(12): 161-168.

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[1] 许金沙,童壮根,宋有立. 搪玻璃压力容器失效及预防[J]. 化工装备技术,2019(2):42. (XU Jin-sha,TONG Zhuang-gen,SONG You-li. Failure and prevention of glass-lined pressure vessel[J]. Chemical Equipment Technology,2019(2):42.)
[2] 吕正豪,宋志峰,张红阳,等. 搪玻璃增韧方法的研究进展[J]. 玻璃搪瓷与眼镜,2021,49(8):46. (LÜ Zheng-hao,SONG Zhi-feng,ZHANG Hong-yang,et al. Research progress on toughening methods of glass lining[J]. Glass Enamel and Ophthalmic Optics,2021,49(8):46.)
[3] 陈海云,邢璐,丁无极,等. 搪玻璃压力容器爆瓷失效影响因素[J]. 化工机械,2015(4):574. (CHEN Hai-yun,XING Lu,DING Wu-ji,et al. The effects on the fishscaling of glass-lined pressure vessels[J]. Chemical Engineering and Machinery,2015(4):574.)
[4] 薛洪喜,崔永凤,徐坤山,等. 搪玻璃使用寿命及其理化性能研究进展[J]. 硅酸盐通报,2020(12):3991. (XUE Hong-xi,CUI Yong-feng,XU Kun-shan,et al. Service life of glass-lined vessels and research progress on physical and chemical properties[J]. Bulletin of the Chinese Ceramic Society,2020(12):3991.)
[5] 全国钢标准化技术委员会(SAC/TC 183). GB 713—2014锅炉和压力容器用钢板[S]. 北京:中国标准出版社,2019.(Standardization Committee of China(SAC/TC 183). GB 713—2014 Steel Plates for Boilers and Pressure Vessels[S]. Beijing:China Standards Press,2019.)
[6] 全国钢标准化技术委员会(SAC/TC 183). GB/T 25832—2019 搪瓷用热轧钢板和钢带[S]. 北京:中国标准出版社,2014. (Standardization Committee of China(SAC/TC 183). GB/T 25832—2019 Hot Rolled Steel Plates and Strips for Porcelain Enameling[S]. Beijing:China Standards Press,2014.)
[7] 徐春,曹红,饶德怀,等. 3种测试溶液对搪瓷用钢抗鳞爆性能评价指标的影响[J]. 玻璃与搪瓷,2019,47(2):42. (XU Chun,CAO Hong,RAO De-huai,et al. The influence of three test solutions on evaluation of fishscale indexes of enameling steel[J]. Glass and Enamel,2019,47(2):42.)
[8] 徐春,赵曼羚,曹红. 搪瓷用钢抗鳞爆性能研究进展[J]. 上海应用技术学院学报(自然科学版),2019,19(3):222.(XU Chun,ZHAO Man-ling,CAO Hong. Research on the fishscaling resistance of enameled steel and its progress[J]. Journal of Technology,2019,19(3):222.)
[9] Yasuda A,Ito K,Tsunoyama K. Review on continuously cast sheet steels for enamelling[C]//Proceedings of a Symposium on Hot-and Cold-Rolled Sheet Steels. Ohio:The Metallurgical Society,1988:273.
[10] 孙全社,金蕾,张庆安,等. 冷轧搪瓷钢板的抗鳞爆性能的研究[J]. 钢铁,2000,35(4),44. (SUN Quan-she,JIN Lei,ZHANG Qing-an,et al. Study on resistance to fishscaleing of cold-rolled steel sheet for enamelling[J]. Iron and Steel,2000,35(4):44.)
[11] 徐春,杨铭,庞灵欢,等.析出相特征与搪瓷用钢抗鳞爆的关系研究[J]. 玻璃与搪瓷,2018,46(6):12. (XU Chun,YANG Ming,PANG Ling-huan,et al. Effect of characteristic of precipitates on fishscaling resistance of enamel steel sheet[J]. Glass and Enamel,2018,46(6):12.)
[12] 葛玉静,徐春. 搪瓷用钢抗鳞爆性能的研究现状[J]. 表面技术,2016,45(12):129. (GE Yu-jing,XU Chun. Research status of enameled steel fish-scaling resistance[J]. Surface Technology,2016,45(12):129.)