Analyser for intelligentized, rapid and highly-precise analysis of diffusible hydrogen in metal

Abstract

The invention relates to an analyser for intelligentized, rapid and highly-precise analysis of diffusible hydrogen in a metal. According to the analyser, an electronic balance is connected to a main control board arranged in a thermal conductivity detection assembly, a hydrogen signal is connected to A / D acquisition and conversion arranged in the thermal conductivity detection assembly, the other end of the A / D acquisition and conversion is connected to the main control board, the other end of the main control board is divided into two paths, one path is connected to an infrared plate in an infrared extraction assembly, and the other path is connected to a sample injection control board of a standard gas injection assembly. Compared to the analyser in the prior art, the analyser of the present invention has the following characteristics that the standard concentration curve is established by using the standard gas injection assembly so as to calibrate the instrument, the sample is subjected to rapid constant temperature heating by using the infrared heat extraction assembly so as to make the diffusible hydrogen rapidly escape, the diffusible hydrogen can rapidly escape by performing infrared heat extraction on the sample and by performing the rapid constant temperature heating on the sample through the infrared heat extraction assembly, and the analyser has characteristics of simple structure, rapid analysis and standard concentration curve so as to provide the accuracy of the detection.

Description

technical field [0001] The present invention is an intelligent rapid and high-precision analyzer for analyzing diffused hydrogen in metals, which relates to the technical field of analyzing diffused hydrogen in metals, and is mainly applicable to the determination of diffused hydrogen in metals and weld metals, and particularly relates to a rapid and high-precision analysis of metals Diffusion hydrogen analyzer. Background technique [0002] The diffusible hydrogen analyzer is mainly suitable for the analysis of diffusible hydrogen content in high-strength metals and weld metals in metallurgy, metal manufacturing, shipbuilding and other industries. The diffusible hydrogen analyzer of the analytical instrument uses infrared heating to extract the sample, and the thermal conductivity method measures the mass fraction of diffusible hydrogen in the sample. Diffusion hydrogen analysis The hydrogen in the sample is heated at a high temperature and constant temperature, and the hy...

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Problems solved by technology

Traditional diffusible hydrogen analyzers generally use glycerin method, mercury method and chromatography. These three methods collect diffusible hydrogen in metals at room temperature or 45°C in a closed container for 72 hours or even 10 days, and the operation time is long. Among them, the glycerin method , the viscosity of glycerin is high, and the escaped hydrogen is suspended in glycerin or adhered to the glass wall, which makes the test error large and the accuracy is not high

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