Determination of oxygen,nitrogen and hydrogen in 12Cr 2 Mo 1 R weld metal by inert gas fusion infrared absorption and thermal conductivity method
WANG Xiao xuan1,2,3,BU Zhao jie1,2,3,HUANG Jian qiang1,2,3,LI Wenxin4
1.Lanzhou LS Test Technology Co.,Ltd.,Lanzhou 730314,China; 2.Gansu Engineering Laboratory of Materials Characterization and Satety Evaluation for Machinery Equipment,Lanzhou 730314,China; 3.Gansu Engineering Technology Research Center of High-end Castings andForgings,Lanzhou 730314,China; 4.Lanzhou LS Energy Equipment Engineering Institute Co.,Ltd.,Lanzhou 730314,China
Abstract：The effect of preparation method of 12Cr2Mo1R weld metal, the analytical power and flux on the determination of oxygen, nitrogen and hydrogen was discussed. The simultaneous determination method of oxygen, nitrogen and hydrogen in 12Cr2Mo1R weld metal by inert gas fusion-infrared absorption and thermal conductivity method was established. The results showed that oxygen, nitrogen and hydrogen could be directly determined without addition of flux under the following conditions: the sample was prepared by spark source wire cutting combined with turning in presence of cooling liquid; the analytical power was 4 500 W. The detection limit of oxygen, nitrogen and hydrogen was 0.000 082 2%, 0.000 648% and 0.000 047 7%, and the low limit of determination was 0.000 274%, 0.002 16% and 0.000 159%, respectively. The proposed method was applied for the determination of actual sample of 12Cr2Mo1R weld metal produced in Lanzhou Lanshi Group Co., Ltd. The relative standard deviations (RSD, n=5) was 0.9%-4.8%,0.9%-5.4% and 4.0%-6.2% for oxygen, nitrogen and hydrogen, respectively. The recovery test was conducted by adding standard steel sample into actual sample. The recovery was 99%-105%, 98%-102% and 91%-94%, respectively.
王晓旋,卜兆杰,黄健强,李文新. 惰气熔融-红外热导法测定12Cr2Mo1R焊缝金属中氧氮氢[J]. 冶金分析, 2017, 37(7): 63-67.
WANG Xiao xuan, BU Zhao jie, HUANG Jian qiang, LI Wenxin. Determination of oxygen,nitrogen and hydrogen in 12Cr 2 Mo 1 R weld metal by inert gas fusion infrared absorption and thermal conductivity method. , 2017, 37(7): 63-67.
朱跃进.金属中气体分析现状与未来[J].冶金分析,2014,34(3):19-23.ZHU Yue-jin.The status quo and peospect of gas analysis jin metal[J].Metallurgical Analysis,2014,34(3):19-23.
[2]
张海龙,朱瑞龙,贾艳,等.12Cr2MoG换热管与12Cr2Mo1管板焊接工艺[J].石油化工设备,2010,39(增刊1):33-36.ZHANG Hai-long,ZHU Rui-long,JIA Yan,et al.Discussion of welding process of 12Cr2MoG tube sheet[J].Petro-Chemical Equipment,2010,39(Supplement 1):33-36.
[3]
王贺龙.有害元素对焊缝金属影响的分析[J].黑龙江科技信息(Heilongjiang Science and Technology Information),2012,14(31):42.
[4]
JERamirez.高强钢焊缝金属的化学成分和组织及非金属夹杂物[J].世界钢铁(World Iron & Steel),2009,9(3):49-59.
[5]
吴燕生.焊接冶金学及金属材料焊接[M].大连:大连理工出版社,2010.
[6]
杨利峰,刘国军,袁剑韬,等.炉前全氧测定钢样制备方法探讨[J].冶金分析,2016,36(8):13-17.YANG Li-feng,LIU Guo-jun,YUAN Jian-tao,et al.Discussion on steel sample preparation method for bath analysis of total oxygen[J].Metallurgical Analysis,2016,36(8):13-17.
朱跃进,李素娟,邓羽.样品制备对金属中微量氧,氮,氢分析结果的影响[J].冶金分析,2008,28(8):40-43.ZHU Yue-jin,LI Su-juan,DENG Yu.Effect of sample treatment on determination results of micro amounts of oxygen,nitrogen and hydrogen in metals[J].Metallurgical Analysis,2008,28(8):40-43.
[9]
刘国军,吴志鸿,张文兵,等.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,et al.Discussion on the sample preparation method for determination of oxyen in steel-pipe[J].Metallurgical Analysis,2014,34(3):35-38.
[10]
于燕鹏,胡少成,马红权,等.脉冲熔融-红外吸收热导法测定钢铁材料中氧氮和氢[J].冶金分析,2014,34(10):32-36.YU Yan-peng,HU Shao-cheng,MA Hong-quan,et al.Pulse heating-infrared absorption and thermal conductivity method for the determination of oxygen,nitrogen and hydrogen in metallic materials[J].Metallurgical Analysis,2014,34(10):32-36.
[11]
胡少成,葛程,马成权,等.脉冲加热-红外吸收热导法同时测定钢铁材料中氧和氢[J].冶金分析,2014,34(4):37-41.HU Shao-cheng,GE Cheng,MA Hong-quan,et al.Simultaneous determination of oxygen and hydrogen in steel materials by pulse heating-infrared absorption and thermal conductivity method[J].Metallurgical Analysis,2014,34(4):37-41.
[12]
蒋毅,赵立华,高丽风,等.钢中氧氮含量测定若干问题的探讨[J].河北冶金,2010(5):20-23.JIANG Yi,ZHAO Li-hua,GAO Li-feng,et al.Discussion about some question in determination of oxygen and nitrogen in steel[J].Hebei Metallurgy,2010(5):20-23.
[13]
张长均,王蓬,黄小峰,等.氧氮氢气体分析仪的石墨坩埚升温过程研究[J].冶金分析,2010,30(11):71-73.ZHANG Chang-jun,WANG Peng,HUANG Xiao-feng,et al.Research on temperature process of graphite crucible in oxygen,nitrogen and hydrogen analyzer[J].Metallurgical Analysis,2010,30(11):71-73.
