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Method for quantitative analysis of wire rod sorbite content by using imager standard sample method

A standard sample, quantitative analysis technology, applied in the analysis of materials, material analysis by optical means, instruments, etc., can solve the problems of long analysis time, large analysis error, cumbersome operation, etc., to achieve high analysis accuracy, high quantitative analysis, Good traceability effect

Active Publication Date: 2013-01-30
TIANJIN IRON & STEEL GRP
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  • Abstract
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Problems solved by technology

Among them, the manual metallographic method is rarely used due to long analysis time and cumbersome operation; the image analyzer method is rarely used due to factors such as many analysis conditions that cannot be unified, large analysis errors, and lack of operability; standard map comparison and rating rules cannot do quantitative analysis

Method used

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  • Method for quantitative analysis of wire rod sorbite content by using imager standard sample method
  • Method for quantitative analysis of wire rod sorbite content by using imager standard sample method
  • Method for quantitative analysis of wire rod sorbite content by using imager standard sample method

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Embodiment Construction

[0023] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0024] The wire rod used in the experiment is SWRH82B high carbon steel sorbite wire rod, such as figure 1 As shown, sample wire rod 1, analysis point 012, R 0.5 Analysis ring 3.

[0025] See Table 1 for ingredients

[0026] Table 1 Chemical composition % of experimental wire rod

[0027]

[0028] Take a roll of wire rod from the experimental furnace number and inlay it into a metallographic sample, sample number: 12-1, and the quantitative analysis steps of its sorbite content are as follows:

[0029] 1) The steel type of the experimental wire rod is 82B sorbite wire rod, so the "SWRH82B sorbite wire rod sorbite percentage content standard sample 1#" standard sample 1, standard sample 1 sorbite percentage content standard Value Ss = 9...

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Abstract

The present invention relates to a method for quantitative analysis of wire rod sorbite content by using an imager standard sample method. The method comprises the following steps: 1) selecting a standard sample having suitable wire rod sorbite content; 2) treating a wire rod sample requiring analysis to provide a spare use for sorbite content analysis; 3) carrying out calibration on an analysis condition Tmi by using a sorbite percentage content standard value of the standard sample to obtain a calibration gradation threshold Gs under a calibration analysis condition Tm; and 4) maintaining the constant calibration analysis condition Tm, and adopting the calibration gradation threshold Gs to carry out quantitative analysis on the sorbite content of the wire rod requiring analysis. According to the method for obtaining the wire rod sorbite content by combination of the standard sample and the image analyzer, the steel wire rod sorbite content can be accurately and quantitatively analyzed, the distribution metallography of the wire rod sample sorbite structure can be exactly observed and analyzed, and analysis error caused by different analysis conditions is eliminated, such that experiment data has good traceability and good reproducibility, and an experiment process is simple and easy to performed, and has good operability.

Description

technical field [0001] The invention belongs to the technical field of metallurgical analysis, in particular to a method for quantitatively analyzing the sorbite content of wire rods by using an imager standard sample method. Background technique [0002] The sorbite wire rod rolled by a high-speed wire rod mill and a controlled cooling system, the percentage of sorbite is of great significance to the performance of the wire rod. Quantitative analysis and detection of sorbite content. There are many methods for evaluating the sorbite content of wire rods, such as manual metallographic method, image analyzer method, etc., and the most commonly used method is the standard map comparison and rating method. Among them, the manual metallographic method is rarely used due to long analysis time and cumbersome operation; the image analyzer method is rarely used due to factors such as many analysis conditions that cannot be unified, large analysis errors, and lack of operability; st...

Claims

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Application Information

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IPC IPC(8): G01N21/84
Inventor 王克杰刘海英刘莹骆春民张龙田庆荣
Owner TIANJIN IRON & STEEL GRP
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