scholarly journals Two-time Calibration at Both Ends for Sulfur Measurement by Using High Frequency Induction Infrared Absorption Method

2022 ◽  
Vol 2160 (1) ◽  
pp. 012005
Author(s):  
Jianhuan Wei
Keyword(s):  
Infrared Absorption ◽  
High Frequency ◽  
Measurement Method ◽  
Absorption Method ◽  
High Temperature Alloy ◽  
Accuracy And Precision ◽  
Time Calibration ◽  
Low Sulfur ◽  
The Impact ◽  
High Frequency Induction

Abstract High frequency induction heating infrared absorption method is a relative measurement method, and it requires calibrating the analyzer during the measurement process. Usually, one-time calibration on an analyzer is made for high sulfur value by using standard substances. The method proposed by this paper calibrates carbon-sulfur analyzers with a method of two-time calibration at both ends, which eliminates the impact of sulfur blank and thus improves the accuracy and precision of ultra-low sulfur measurement. The method extents the lower limit of measurement of sulfur in high temperature alloy, to 0.00005%, namely, 0.5ppm.

Applied Technology with Methods for Measuring Sulfur Blank Values by Using Infrared Absorption Method

2014 ◽  
Vol 977 ◽  
pp. 141-145
Author(s):  
Kuo Hsiang Tang ◽  
Hong Ling He
Keyword(s):  
Key Words ◽  
Direct Measurement ◽  
Infrared Absorption ◽  
Measurement Method ◽  
Indirect Measurement ◽  
Absorption Method ◽  
Advantages And Disadvantages ◽  
Applied Technology ◽  
Direct Measurement Method ◽  
The Impact

Currently, there are three major methods for infrared carbon-sulfur analyzer to measure blank values. This paper discusses the advantages and disadvantages of the three methods by using the measured test data from specific tests, and finally makes a conclusion that, the Cycle Measurement of Sulfur Blank Value (CMSBV) created by JIANHUAN WEI is the most effective method. Entering this sulfur blank value into analyser, the automatic deduction of blank values will be performed. As a result, the impact of the blank value on sulfur measurement can be eliminated. Key words: Sulfur blank value, direct measurement method, indirect measurement method, The Cycle Measurement of Sulfur Blank Value (CMSBV)

scholarly journals Investigation of penetrator defect formation during high frequency induction welding in pipeline steels

2021 ◽  
Vol 349 ◽  
pp. 04002
Author(s):  
Christos Sofras ◽  
Marianthi Bouzouni ◽  
Nikolaos Voudouris ◽  
Spyros Papaefthymiou
Keyword(s):  
Chemical Composition ◽  
High Frequency ◽  
Defect Formation ◽  
Welding Process ◽  
High Strength ◽  
Chemical Compositions ◽  
Oxide Formation ◽  
Pipeline Steels ◽  
The Impact ◽  
High Frequency Induction

The aim of this study is to investigate the formation of oxide defects known as penetrators during high frequency induction welding process of high strength low alloy pipeline steels and to correlate their formation with the steel chemical composition. Penetrators formed during the welding process can be detrimental for the impact properties of the weld seam. For this purpose, three different samples, with different chemical compositions, were intentionally produced with penetrator-type oxides and investigated. In order to characterize the oxide defect and correlate their formation with the chemical composition of the steel, optical microscopy and scanning electron microscopy paired with energy dispersive spectroscopy were employed. In addition, thermodynamic calculations were performed in order to examine whether the chemical composition of pipeline steels is prone to oxide formation. The results showed that oxides with pancake type morphology were found alongside the fusion zone of the samples. They mainly consisted of manganese and silicon. First findings on the the Mn/Si ratio showed that the lower ratio is less susceptible to oxide formation.

Measurement of Ultra Low Sulfur in IN718 by Using Infrared Absorption Method

2014 ◽  
Vol 989-994 ◽  
pp. 115-120
Author(s):  
P.R. Zalupski ◽  
Feng Yan Liu
Keyword(s):  
Experimental Data ◽  
Infrared Absorption ◽  
Absorption Method ◽  
Feasible Method ◽  
Experimental Process ◽  
Precision And Accuracy ◽  
Low Sulfur

The paper introduces an experimental process on measurement of ultra low sulfur in IN718 by using infrared carbon sulfur analyzer. The experimental data shows that, infrared absorption method can be used to analyze and measure the ultra low sulfur in IN718, and the precision and accuracy of this method meets the requirement of ASTM E l019-2000. It can be concluded that it is a feasible method in practice.

Study on Carbon and Sulfur Detection by Using Infrared Absorption Method

2014 ◽  
Vol 989-994 ◽  
pp. 146-150
Author(s):  
M.R. Bayati ◽  
Peng Yi Wei
Keyword(s):  
Infrared Absorption ◽  
High Frequency ◽  
Heating System ◽  
Absorption Method ◽  
Frequency Heating

This paper focuses on discussing the principle of detecting carbon and sulphur by using infrared absorption method, characteristics of high-frequency heating, system blank value, and method for detecting trace carbon and sulphur.

Rapid Sintering and Synthesis of Nanostuctured FeCrAlSi-Al2O3 Composite by High-Frequency Induction Heating

2011 ◽  
Vol 49 (03) ◽  
pp. 231-236 ◽  
Author(s):  
Song-Lee Du ◽  
Sung-Hun Cho ◽  
In-Yong Ko ◽  
Jung-Mann Doh ◽  
Jin-Kook Yoon ◽  
...  
Keyword(s):  
Induction Heating ◽  
High Frequency ◽  
Al2o3 Composite ◽  
Rapid Sintering ◽  
High Frequency Induction

In-situ compaction and sintering of Al2O3 – GNP nanoparticles using a high-frequency induction system

2018 ◽  
Vol 60 (7-8) ◽  
pp. 727-732
Author(s):  
Uğur Çavdar ◽  
İ. Murat Kusoglu ◽  
Ayberk Altintas
Keyword(s):  
High Frequency ◽  
Induction System ◽  
High Frequency Induction
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