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Laboratory preparation method of iron-base amorphous spectral standard sample

A spectroscopic standard sample, iron-based amorphous technology, which is used in the preparation of test samples, material analysis by optical means, measurement devices, etc. and other problems, to achieve the effect of simple operation, accurate data and strong reliability

Inactive Publication Date: 2013-05-22
QINGDAO YUNLU ENERGY TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Moreover, the content of the Si element that is difficult to excite is relatively high, which leads to large differences in the results obtained by instrumental analysis of its internal components; at the same time, the traditional sample casting sampling method is easy to form pores and inclusions in the sample block, resulting in low success rate and low sample block. The component segregation between them is relatively large, which has higher requirements for the production of iron-based amorphous spectral standard samples

Method used

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  • Laboratory preparation method of iron-base amorphous spectral standard sample
  • Laboratory preparation method of iron-base amorphous spectral standard sample
  • Laboratory preparation method of iron-base amorphous spectral standard sample

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Embodiment 1

[0038] 1) Selection of chemical composition: Iron-based amorphous alloy Fe 78 Si 9 B 13 , with iron accounting for 78% of the total content as the base, silicon and boron as the high and low standards, distributed in steps, and the chemical formula of the selected standard sample ratio is Fe 78 Si 5 B 17 ——Fe 78 Si 13 B 9 , every 5% is a gradient, 17 samples are required, numbered 1#-17#, the capacity of the vacuum furnace used is 2kg, and the molten steel capacity is set at 1800g. The composition content of each element is shown in Table 1.

[0039] Table 1 Component content of each element

[0040] the element

Si / %

B / %

C / %

S / %

P / %

Al / %

Mn / %

Fe / %

content

5~13

7~19

≤0.05

≤0.01

≤0.05

≤50ppm

≤0.1

margin

[0041] For 9# sample Fe 78 Si 9 B 13 The preparation steps are as follows:

[0042] Raw materials: 286g of pure iron, 162g of industrial silicon with a silicon content of 99.96%,...

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Abstract

The invention relates to a laboratory preparation method of an iron-base amorphous spectral standard sample. The method comprises the following steps: chemical composition selection; raw material smelting; molten steel casting; demolding; sample treatment and characteristic analysis; sample uniformity analysis; sample deterministic analysis; and sample composition calibration. On the basis of the chemical composition and proportioning, smelting process and final sample processing, the invention provides a laboratory vacuum furnace smelting preparation method of an iron-base amorphous alloy spectral standard sample, which has the advantages of high reliability and low cost and is simple to operate. The sample prepared by the method provided by the invention can be effectively and uniformly excited by a spectrometer, thereby obtaining more accurate data and providing insurance for development and production of iron-base amorphous alloy materials.

Description

technical field [0001] The invention relates to a preparation method of a spectral standard sample, in particular to a laboratory preparation method of an iron-based amorphous spectral standard sample. Background technique [0002] Most of the calibration samples commonly used in the market for instrumental analysis are national standard materials, and most of them are made by traditional continuous casting tundish casting method. The method is cumbersome to operate, and the smelting process takes a long time. [0003] Only one standard sample with one content can be prepared each time, which is not conducive to the preparation of gradient standard samples, so the existing methods for preparing spectral standard samples cannot meet the needs of production and research and development. In addition, iron-based amorphous alloys are different from ordinary general-purpose samples due to differences in composition content, internal organization, structure, and heat treatment. ...

Claims

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Application Information

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IPC IPC(8): G01N21/01G01N1/28
Inventor 庞靖于晓霞王静
Owner QINGDAO YUNLU ENERGY TECH
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