1976
DOI: 10.1002/srin.197603846
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Die Bestimmung des Wasserstoffgehaltes von flüssigem Stahl

Abstract: Beschreibung der Probenahme von Stählen mit Eisengehalten größer als 95% aus Strangguß‐ und Blockgußkokillen und einer Apparatur zur Bestimmung des Wasserstoffgehaltes. Entnahme durch geschütztes Tauchen von Quarzgutrohren. Füllen in Tiefen bis zu 250 mm mit ferrostatischem Druck. Umgehung der Probenahme aus oberflächennahen Schichten des Stahlbades zur Vermeidung von Verlusten durch das bisher übliche Einsaugen des flüssigen Stahles in das Quarzgutrohr. – Wasserstoffbestimmung durch Warmauslagerung der Proben… Show more

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“…With the pin‐tube method, an evacuated quartz tube is used to suck a sample from the steel melt. To avoid hydrogen loss the sample is quenched as quick as possible, first in water then in liquid nitrogen 33, 34. The result depends on the sample quality, the sample diameter, the timing of the sampling and the quench rate 35.…”
Section: Methodsmentioning
confidence: 99%
“…With the pin‐tube method, an evacuated quartz tube is used to suck a sample from the steel melt. To avoid hydrogen loss the sample is quenched as quick as possible, first in water then in liquid nitrogen 33, 34. The result depends on the sample quality, the sample diameter, the timing of the sampling and the quench rate 35.…”
Section: Methodsmentioning
confidence: 99%