Low-alloy cast iron spectrum complete set standard sample as well as preparation method and detection method thereof

A spectral standard sample and standard sample technology, which is applied in the field of low-alloy cast iron spectral standard samples and their preparation, can solve the problems of difficulty in forming full white, low chemical composition, high carbon content, etc., to improve long-term stability, Effect of reducing internal stress and processing stress and accurate applicability

Active Publication Date: 2021-11-19
石家庄创谱科技有限公司
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Problems solved by technology

[0006] The first purpose of the present invention is to provide a method for preparing a complete set of low-alloy cast iron spectral standard samples, so as to solve the problem of low-alloy cast iron material standard samples covered by low chemical components, high carbon content, and inclusions in the prior art. High, it is difficult to form a technical problem of full white mouth

Method used

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  • Low-alloy cast iron spectrum complete set standard sample as well as preparation method and detection method thereof
  • Low-alloy cast iron spectrum complete set standard sample as well as preparation method and detection method thereof
  • Low-alloy cast iron spectrum complete set standard sample as well as preparation method and detection method thereof

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preparation example Construction

[0064] The invention provides a method for preparing a complete set of low-alloy cast iron spectrum standard samples and the obtained standard samples. The method comprises the following steps:

[0065] (a) chemical composition design, the present invention follows the following principles in composition design: (1) the scope of composition will cover the upper and lower limits of the analysis product, and when extending the upper and lower limits, the needs of product furnace smelting will be fully considered; (2) each element composition The design should be distributed in a uniform gradient as much as possible; (3) Avoid the existence of two elements that are easy to form inclusions in the form of high content in each point; (4) Pay attention to the balance of the matrix.

[0066] The design of the chemical composition of the present invention is interrelated with the design of the subsequent smelting and molding process. Most of the existing standard samples contain few che...

Embodiment 1

[0145] The present embodiment provides a kind of preparation method of low-alloy cast iron spectral complete standard sample, comprises the following steps:

[0146] (a) Chemical composition design: Within the specified chemical composition range, 7 levels of chemical composition are designed according to the principles of equal gradient distribution, mutual interference between elements and the lowest probability of inclusions, as shown in Table 2;

[0147] Table 2 seven levels of chemical composition fixed value (w / %)

[0148] Numbering C Si mn P S Cr Ni Mo V Cu Mg T023-1 3.48 0.546 0.208 0.069 0.051 2.21 0.058 0.701 0.550 0.455 0.0005 T023-2 3.12 2.45 0.776 0.439 0.011 1.52 1.01 0.580 0.204 1.13 0.060 T023-3 2.91 1.51 0.965 0.234 0.0099 0.973 0.543 0.408 0.188 0.747 0.050 T023-4 3.62 2.06 1.22 0.165 0.043 1.21 0.773 0.313 0.360 0.535 0.011 T023-5 3.86 0.984 1.40 0.346 0.011 0.6...

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Abstract

The invention relates to the technical field of spectrum standard sample preparation, in particular to a low-alloy cast iron spectrum complete set standard sample and a preparation method and a detection method thereof, and the preparation method comprises the steps of chemical component design, smelting, forming, standard sample treatment and preparation, standard sample initial detection, in-unit detection, inter-block uniformity detection, constant value analysis and standard value determination, stability inspection and linear inspection. The standard sample prepared by the method disclosed by the invention is wide in application range, good in sample uniformity, low in inclusion content in the sample and thorough in sample whitening, and the sample has the characteristics of long-term stability and good linearity and has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of spectral standard sample preparation, in particular to a low-alloy cast iron spectral standard sample set and its preparation method and detection method. Background technique [0002] With the rapid development of the automobile and metallurgical machinery industries, the scope of application of low-alloy cast iron materials is becoming wider and wider, the quality requirements are getting higher and higher, and the amount of chemical composition control is also increasing. [0003] Cast iron can be divided into: gray cast iron, white cast iron, malleable cast iron, nodular cast iron, vermicular cast iron and alloy cast iron. Alloy cast iron refers to cast iron that has special properties by adding alloying elements to ordinary cast iron. Alloy cast iron is divided into low alloy cast iron (alloy element content < 5%), medium alloy cast iron (alloy element content 5-10%) and high alloy cast iron (all...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/25G01N1/28G01N29/04
CPCG01N21/25G01N1/28G01N29/04G01N2291/023Y02P10/20
Inventor 刘鹏张增坤梁红艳
Owner 石家庄创谱科技有限公司
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