论文部分内容阅读
在金属冶炼过程中,氮氢氧等气体元素常被吸收在金属中,成为夹杂物残留,这要影响金属的物理性能。因此冶炼过程中对其进行快速准确地测定是必须的。氮的化学法测定虽准确度较高,但分析周期长达40分钟,且有部分试样难溶的问题,炉前配合有困难。我们用已有的进口专用定氢仪进行氢氮联测试验,在保持原仪器定氢技术指标的前提下,氮分析灵敏度达0.0002％;精度为±0.0003％;测量范围为0.0000x～x.x％;周期为4.5分钟。基本满足了冶炼炉前工艺的需要。
In the metal smelting process, nitrogen and oxygen and other gas elements are often absorbed in the metal, as inclusions, which affect the physical properties of the metal. Therefore, smelting process for its rapid and accurate determination is necessary. Although the determination of nitrogen chemical method with high accuracy, but the analysis cycle up to 40 minutes, and some of the sample is difficult to dissolve the problem, before the furnace with difficulties. We use the existing dedicated hydrogen analyzer for imported hydrogen nitrogen nitrogen test, while maintaining the original instrument hydrogen technology specifications under the premise of nitrogen analysis sensitivity of 0.0002%; accuracy of ± 0.0003%; measurement range of 0.0000x ~ xx% The cycle is 4.5 minutes. The basic process to meet the needs of smelting furnace.