Patent · US Active

Method for determining carbon in cast iron

US8976350B2 · kind B2 · utility

0Cited by

2References

9Claims

0Family size

Assignee

SPECTRO ANALYTICAL INSTRUMENTS GMBH · DE

Inventors

Roland Van Driel · Kranenburg, DE
Bruno Van Stuijvenberg · Nideggen, DE

Key dates

Filing date	Feb 17, 2011
Grant date	Mar 10, 2015
Priority date	—
Expiry date	Jul 8, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG01N21/67
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method of determining the carbon content of an iron alloy may include starting of the measurement of a sample in a spark spectrometer, creation of a plasma in a pre-sparking phase, detection and recording of an intensity signal for the carbon, calculation and cutting out of an unstable plasma phase, calculation of an excessive rise in the carbon signal, and calculation of the content of dissolved and undissolved carbon.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.