|
Determination of Ultra-low Carbon and Sulfur Contents in Steel by High Frequency Combustion-infrared Absorption Method |
Received:April 19, 2014 Revised:September 21, 2014 |
View Full Text View/Add Comment Download reader |
DOI:doi:10.3969/j.issn.2095-1035.2014.04.012 |
KeyWord:steel; carbon and sulfur analysis; high frequency combustion-infrared absorption spectrometry |
Author | Institution |
WANG Nan |
东北大学研究院 分析测试中心,沈阳 |
TONG Xiaomin |
东北大学研究院 分析测试中心,沈阳 |
GAO Chunying |
东北大学研究院 分析测试中心,沈阳 |
|
Hits: 1806 |
Download times: 0 |
Abstract: |
A method for the determination of ultra-low carbon and sulfur in steel by infrared combustion absorption spectrometry was studied. Some factors which influence the determination, such as the purification of oxygen, the processing of the crucible, the disposal and weighting of the sample, the category and dosage of fluxing agent were investigated and optimized. The optimized experimental conditions were obtained as follows: the analysis time was 40 s, the crucibles were burned for 45 min at 1 350℃, tungsten, as the fluxing agent, was drying 3 h at 140 ℃ before use, the dosage of fluxing medium of was 1.5 g and the dosage of sample of 0.5 g. Under the optimum conditions, the proposed method has good repeatability and high accuracy, and was successfully applied to the determination of carbon-sulfur with the content of 0.01%~0.001% in real steel samples. |
Close |
|
|
|