摘要
基于工作需求研究了利用TC-600氧氮分析仪,在惰性气体环境中测定钒氮合金中氮。利用手动分析方法,用锡做助熔剂通过程序升温,在熔融功率为3 500~5 500 W时,逐渐将试样熔融,使氮充分释放,避免了试样喷溅,减小了对炉膛和上电枀的污染,有效的提高了测量结果。并对方法所需的适宜条件进行了讨论,建立了钒氮合金中高含量氮的脉冲加热-热导分析方法,节约了成本,提高了速度和准确度,并减小了设备的损耗。
The determination of nitrogen in vanadium nitrogen alloy by TC-600 oxygen nitrogen analyzer in inert gas environment was studied. By means of manual analysis, tin was used as flux to melt the sample at the melting power of3500~5500 W by programmed temperature, and nitrogen was fully released to avoid the splashing of the sample,reducing the pollution of furnace and upper electrode, and the measurement result was improved effectively. The suitable conditions of the method were discussed, and the pulse heating thermal conductivity analysis method of high nitrogen content in vanadium nitrogen alloy was established, the cost was decreased, and the speed and accuracy were improved.
作者
唐语
胡维铸
张鲁宁
TANG Yu;HU Wei-zhu;Zhang Lu-ning(Technology Research Institute of Benxi Steel Plate Co.,Ltd.,Liaoning Benxi 117000,China)
出处
《当代化工》
CAS
2019年第7期1630-1632,1636,共4页
Contemporary Chemical Industry
关键词
热导法
钒氮合金
氮
手动加样
程序升温
Heat conductance method
Vanadium nitrogen alloy
Nitrogen
Manual sampling
Programmed temperature
