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Correcting method for constituent content analysis type in steel products

A technology of element content and analysis type, which is applied in the field of type correction of direct-reading spectral analysis, and can solve problems such as greater influence on analysis accuracy

Inactive Publication Date: 2009-04-08
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing correction methods are only simple addition and subtraction compensation corrections, or simple multiplication coefficient corrections, which have a great impact on the analysis accuracy

Method used

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  • Correcting method for constituent content analysis type in steel products
  • Correcting method for constituent content analysis type in steel products
  • Correcting method for constituent content analysis type in steel products

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Experimental program
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Embodiment Construction

[0014] For example: 304 stainless steel, the range of Ni element required by the national standard is 8.0% to 10.0%, and two 304 standard samples are used for correction.

[0015] Standard sample I: YSB S11371a-2003 developed by the General Institute of Iron and Steel Research, the standard value of Ni element content Y 1 is 8.95%, and the actual measured value X1 is 9.12%.

[0016] Standard sample II: YSBS20310-4-2006 developed by Shanghai Iron and Steel Research Institute, the standard value of Ni element content Y 2 is 8.30%, the actual measured value X 2 8.38%

[0017] Using the y=ax+b correction method, first calculate the values ​​of the coefficients a and b:

[0018] The formula for calculating the multiplication factor a: a = Y 1 - Y 2 X 1 - ...

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Abstract

The invention provides a correction method used for the analysis type of element content in steel materials, which can be widely applied to the type standardization correction before the content analysis for measuring the component of a specimen is carried out and aims at improving the analysis accuracy and stably analyzing the quality of the steel materials; two steel standard sample I and II with the same types and different compositions are analyzed and corrected simultaneously; the correction formula of practically measured value x of the standard sample and the correction value y of the standard sample is described as follows: y is equal to ax plus b; wherein, a is a multiplication coefficient and b is an addition coefficient.

Description

technical field [0001] The invention relates to a type correction method for direct-reading spectral analysis, in particular to a type correction method for element content analysis in steel. Background technique [0002] With the increase in the price of nickel metal, in order to reduce the cost of stainless steel, it is necessary to improve the analysis accuracy of nickel element content in stainless steel and more effectively control the lower limit of the national standard for nickel element content in stainless steel. The existing correction methods are just simple addition and subtraction compensation corrections, or simple multiplication coefficient corrections, which have a great impact on the analysis accuracy. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a method for correcting the element content analysis type in steel that can improve the analysis accuracy an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/25
Inventor 张征宇赵卫星芦飞
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD