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Thermal analysis method for testing volatile and oxidizable alloy material by using nested sealed crucible

A nested and reused technology, applied in the field of analysis and testing, which can solve problems such as pollution and large error in measurement results

Pending Publication Date: 2020-10-27
NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a low-cost thermal analysis method with a reusable sealed nested crucible for the problems of alloys containing volatile and easily oxidizable elements polluting test equipment and large errors in measurement results

Method used

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  • Thermal analysis method for testing volatile and oxidizable alloy material by using nested sealed crucible
  • Thermal analysis method for testing volatile and oxidizable alloy material by using nested sealed crucible

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A reusable nested sealed crucible, comprising: inner and outer crucibles 1, 3, and a sealing gasket 2; the sealing gasket 2 is in the shape of a barrel, and the inner and outer crucibles 1, 3 and the sealing gasket 2 Use interference fit to form a sealed space.

[0034] Pure magnesium DSC, specific tests include:

[0035] First, the above-mentioned inner and outer crucibles and sealing gaskets are sealed to form a reference crucible, and the quality of the reference crucible is weighed; the quality of the inner and outer crucibles and sealing gaskets, and the quality of the pure magnesium sample are weighed, and then sealed to form a sample crucible; The reference crucible and sample are placed on the thermal analysis equipment support;

[0036] Then set up the test program, Name the test result file; open the purge gas and start measurement; open the test result file and output the test result, see figure 2 .

[0037] Finally, take out the experimental crucible a...

Embodiment 2

[0039] Magnesium-aluminum-zinc alloy thermal analysis, the crucible that adopts is the same as embodiment 1, and concrete test comprises:

[0040] First, seal the inner and outer crucibles and sealing gaskets to form a reference crucible, weigh the quality of the reference crucible; weigh the quality of the inner and outer crucibles and sealing gaskets, and the quality of the pure magnesium sample, and then seal to form a sample crucible; The crucible and sample are placed on the thermal analysis equipment support;

[0041] Then set up the test program, Name the test result file; open the purge gas to start measurement; open the test result file to output the test result.

[0042] Finally, take out the experimental crucible and wait for cleaning.

Embodiment 3

[0044] AZ31 alloy thermal analysis, the crucible that adopts is with embodiment 1, and concrete test comprises:

[0045] First, seal the inner and outer crucibles and sealing gaskets to form a reference crucible, weigh the quality of the reference crucible; weigh the quality of the inner and outer crucibles and sealing gaskets, and the quality of the pure magnesium sample, and then seal to form a sample crucible; The crucible and sample are placed on the thermal analysis equipment support;

[0046]Then set up the test program, Name the test result file; open the purge gas to start measurement; open the test result file to output the test result.

[0047] Finally, take out the experimental crucible and wait for cleaning.

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Abstract

The invention belongs to the technical field of analytical testing, and relates to a thermal analysis method for testing a volatile and oxidizable alloy material by using a nested sealed crucible. A test sample is placed in a sealed crucible for thermal analysis. The sealed crucible comprises an outer crucible body, a cylindrical sealing gasket and an inner crucible body, wherein the inner crucible body and the outer crucible body are made of tantalum with the purity being 99.7, the gasket is made of red copper, and the crucible is sealed through interference fit of the inner crucible body, the outer crucible body and the gasket. The sealing process is operated in an open space, and the operation requirement is not high. And the inner and outer crucible bodies can be repeatedly used to reduce the experiment cost. The sealed crucible is adopted to prevent a sample from being in contact with air, so that the influence of volatilization and oxidation of the sample on thermal analysis measurement is inhibited, and a more accurate test result can be obtained; therefore, thermal analysis becomes a conventional experimental means for alloy design of volatile and oxidizable alloys.

Description

technical field [0001] The invention belongs to the technical field of analysis and testing, and relates to a thermal analysis method for testing alloy materials containing volatile and easily oxidizable elements by using nested sealed crucibles. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] In the research and production process of metal materials, it is necessary to accurately know the thermophysical parameters such as phase transition temperature, enthalpy and specific heat of metal materials. Thermal analysis is the most important experimental method to obtain these parameters. [0004] During the thermal analysis test, for materials that do not contain volatile and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/00
CPCG01N25/00
Inventor 詹成伟程开明孙佳星王瑨孙翠翠周吉学刘运腾
Owner NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI
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