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Real-time acquisition system of low-temp metallographer for computer

A real-time acquisition, computer technology, used in tabulation machines, preparation of test samples, computers with plug-in boards, etc., can solve problems such as the inability to observe the dynamic change process of metallographic structure

Inactive Publication Date: 2004-06-30
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Claims
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Problems solved by technology

[0002] In the prior art, the metal sample is directly placed on the stage of the metallographic microscope. When the sample is at an ultra-low temperature (below 120K) temperature, the moisture in the atmosphere will condense on the metal sample, forming a layer on its surface. Frost covers its metallographic structure, making it impossible for the metallographic microscope to observe the dynamic change process of the metallographic structure under ultra-low temperature and cryogenic state

Method used

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  • Real-time acquisition system of low-temp metallographer for computer
  • Real-time acquisition system of low-temp metallographer for computer
  • Real-time acquisition system of low-temp metallographer for computer

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Embodiment Construction

[0010] Such as figure 1, figure 2, Figure 4 As shown, the liquid nitrogen tank 5 is set on the vacuum tank 7, the high-vacuum low-temperature insulation device is placed on the stage of the metallographic microscope 9, and the vacuum pump 4 draws out the air in the vacuum tank 7 through the air extraction interface 7-8 to automatically increase The pressing and discharging device 6 supplies liquid nitrogen 5-2 to the liquid nitrogen tank 5. The junction of the thermocouple 5-5 is set near the metallographic sample 8, and the other end passes through the electrode column 7-1 (two groups of 4) The 2 electrode columns are connected with the thermometer 3. Thermometer 3 is a universal secondary temperature measurement instrument. At the lower end of the liquid nitrogen tank 5 is an electric heating coil 5-4 for heating the metallographic sample 8, and the resistance heating device 5-4 is connected to the adjustable heating power source 2 through the two electrode columns of the e...

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Abstract

The invention is composed of four parts: automatic pressure charging and liquor drainage set; high vacuum and low temperature insulation set; metallurgical microscope and computer metallurgical phase process system. The automatic pressure charging and liquor drainage set includes inner liner body, outer liner body, multi-screen thermal insulation layer, drainage valve, upper drainage tube installed on the drainage valve. The low end of pressure charging tube is connected to bottom of the inner liner body. There is low temperature valve in the space between guard ring and cold accumulation box which is connected to one end of said valve. The high vacuum and low temperature insulation set consists of vacuum tank and liquid nitrogen container. The lens installed on the low body of the vacuum tank is positioned below the heat-insulating glass. The metallurgical phase specimen is put into the high vacuum and low temperature insulation set that is fixed on the specimen stage of metallurgical microscope. Computer metallurgical phase process system includes electric camera, computer, monitor and printer.

Description

Technical field [0001] The invention relates to an observation device for metal metallographic structure. Background technique [0002] In the prior art, the metal sample is directly placed on the stage of the metallographic microscope. When the sample is in the ultra-low temperature and cryogenic temperature (below 120K), the moisture in the atmosphere condenses on the metal sample, forming a layer on the surface of the metal sample. Frost covers the metallographic structure, so that the metallographic microscope cannot observe the dynamic change process of the metallographic structure in the ultra-low temperature and cryogenic state. Summary of the invention [0003] The purpose of the present invention is to place the metal sample in a vacuum insulation environment so that the metallographic microscope can observe the dynamic change process of the metallographic structure of the metal sample in the ultra-low temperature and cryogenic state in real time. [0004] An ultra-low ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/36G06F15/12
Inventor 刘秀芝李士燕徐树深林焰安丽丽陈秀娟袁子洲王晓军
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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