Abstract：With thick-walled seamless steel pipe WB36 and P92 which had good uniformity for oxygen content as the examples, the sample preparation method for determination of oxygen in steel-pipe was established, which was suitable for the mass production conditions in factories. The influence of such factors as sample weight, sample processing grinding feed rate, storage time and cleaning time on the analytical results was investigated, and the results showed that when the cut-off sample weight was 1.0 g, the processing grinding feed rate was 0.1 mm/stroke and the ultrasonic cleaning time was 2 min, the optimum analytical results were obtained within 1 d after the preparation was complete. Thick-walled pipe P92 material produced by the Inner Mongolia North Heavy Industries Group Corporation was prepared according to the proposed method, and the content of oxygen was determined by oxygen and nitrogen analyzer. The results were consistent with those obtained by preparation and determination with CISRI, and the reproducibility limit was 0.000 70%-0.000 84%.
刘国军, 吴志鸿, 张文兵, 杨利峰, 张建国, 李乃浩. 管材钢中氧分析试样制备方法探讨[J]. 冶金分析, 2014, 34(3): 35-38.
LIU Guo-jun, WU Zhi-hong, ZHANG Wen-bing, YANG Li-feng, ZHANG Jian-guo, LI Nai-hao. Discussion on the sample preparation method for determination of oxygen in steel-pipe. , 2014, 34(3): 35-38.
Tian Xiubo, Ricky K Y Fu, Wang Lianwei, et al. Oxygen-induced nickel segregation in nitrogen plasma implanted AISI 304 stainless steel[J]. Materials Science and Engineering, 2011, 316(15):200-204.
[4]
龙湘祁.钢中氧氮分析[J]. 湘钢科技(Xiangtan Iron and Steel Technology), 2003(2):52-53.
[5]
R Gijbels, A Speecke, J Hoste. An oxygen standard for the determination of oxygen in steel by 14-MeV neutron activation analysis[J]. Analytica Chimica Acta, 1968, 43:183-198.
[6]
靳晓珠, 仲平, 徐华, 等. 氧氮分析影响因素探讨[J]. 广西科学院学报(Journal of Guangxi Academy of Sciences), 2006, 22(S):449-501.
