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Method for analyzing small-section metal sample through direct reading spectrometry

A metal sample, direct-reading spectrum technology, applied in the preparation of test samples, electrical excitation analysis, material excitation analysis, etc. Simple operation and the effect of solving the air leakage of the spark table

Inactive Publication Date: 2012-02-22
YONGXING SPECIAL STAINLESS STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a method for direct-reading spectroscopic analysis of small-section metal samples. This method solves the problems of inconvenient grinding of small-section metal samples and gas leakage from the spark table during analysis. It does not need to use small fixtures and has the advantages of The advantages of simple operation, fast and accurate

Method used

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  • Method for analyzing small-section metal sample through direct reading spectrometry
  • Method for analyzing small-section metal sample through direct reading spectrometry
  • Method for analyzing small-section metal sample through direct reading spectrometry

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Example 1: The component analysis of a steel ball with a diameter of 10mm (the steel type is 304HC) is carried out according to the following steps:

[0025] (1) Heat the steel ball with an alcohol blowtorch, use a hammer to knock it into a flat shape with a diameter of about 15mm, then put the flat sample into the metallographic sample mounting machine, and add Bakelite powder for mounting;

[0026] (2) After the above inlaid sample is taken out and cooled until it is not hot to the hands, the exposed metal surface is ground with a spectrum grinding machine according to the conventional large-section sample grinding method;

[0027] (3) The metal exposed surface of the ground sample is collimated to the electrode on the spark table of the direct reading spectrometer, and a metal rod is used to connect the excitation lifting control device and the spark table, and then analyzed according to the conventional large-section sample analysis conditions.

[0028] Parallel mea...

Embodiment 2

[0031] Example 2: Composition analysis of a metal screw with a nut diameter of 10mm (steel type is 201Cu). The analysis step is increased. The sample after grinding is cleaned with ethanol by ultrasonic waves. 3.

[0032] Table 3 Screw precision test.

[0033]

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Abstract

The present invention relates to a method for analyzing a small-section metal sample through direct reading spectrometry, and belongs to the technical field of metallurgy analysis and detection. The method comprises the following three steps: inlaying, grinding and analyzing. With adopting inlaying for the small-section metal sample, the section of the inlayed sample is large, the thickness is high, such that the problems of inconvenience during the small-section metal sample grinding, air leakage of the spark table during analyzing, and the like are solved. According to the present invention, the small fixture is not required; the method has advantages of simple operation, rapidness and precision, and is suitable for popularization in iron and steel production and test.

Description

technical field [0001] The invention belongs to the technical field of metallurgical analysis and detection, and in particular relates to a method for direct-reading spectrum analysis of small-section metal samples. Background technique [0002] Direct reading spectral analysis has been widely used in steel production inspection due to its convenience, rapidity, accuracy, wide analysis range and many other characteristics. [0003] However, direct reading spectroscopy has certain requirements on the shape of the sample. Since the diameter of the excitation hole of the direct reading spectrometer is 12~16mm, it is a very difficult problem to analyze the composition of small samples with a diameter of less than 12mm. Most of these small-section metal samples are small and irregular, the surface is rusty, dirty, difficult to grind or the angle is difficult to grasp when grinding the sample, which usually makes the grinding surface inclined, resulting in a decrease in analysis ...

Claims

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Application Information

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IPC IPC(8): G01N21/66G01N1/28
Inventor 吴明华王建勇丁斌华冯惠伟孙健汪雯
Owner YONGXING SPECIAL STAINLESS STEEL
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