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Equipment for measuring diffusion of metal melts based on thin-layer diffusion model and application of equipment

A model measurement, metal melt technology, applied in the preparation of test samples, measuring devices, diffusion analysis, etc., can solve the problem of inability to realize thin layer diffusion model, measure the diffusion coefficient of metal melt, etc., to ensure the consistency of the experimental environment The effect of high stability, high experimental environment requirements, and accurate experimental measurement results

Active Publication Date: 2014-12-10
HEFEI UNIV OF TECH
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Problems solved by technology

However, the technical solution disclosed in ZL201310153997.X cannot realize the measurement of the diffusion coefficient of metal melt based on the thin layer diffusion model

Method used

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  • Equipment for measuring diffusion of metal melts based on thin-layer diffusion model and application of equipment
  • Equipment for measuring diffusion of metal melts based on thin-layer diffusion model and application of equipment
  • Equipment for measuring diffusion of metal melts based on thin-layer diffusion model and application of equipment

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Embodiment Construction

[0039] see figure 1 and figure 2 , the structural form of the device for measuring the diffusion of metal melt based on the thin layer diffusion model in this embodiment is:

[0040] A frame 2 is arranged in the vacuum chamber 1, a diffusion table 4 made of graphite is arranged in the frame 2 by using a fixed tube 10, and a heater 3 is arranged on the periphery of the diffusion table 4; a first sample is respectively arranged in the diffusion table The column cavity 7a and the second sample column cavity 7b, the first sample column cavity 7a is located at the center of the diffusion stage, and the second sample column cavity 7b is located at the lower left side of the first sample column cavity 7a.

[0041] like Figure 3a and Figure 3b As shown in the figure, the diffusion stage 4 is formed by laminating horizontally elongated graphite sheets, including: a set of right-moving graphite sheets 4a that can be moved to the right, a set of fixed graphite sheets 4b that are fi...

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Abstract

The invention discloses equipment for measuring diffusion of metal melts based on a thin-layer diffusion model and application of the equipment. The equipment is characterized in that a frame is arranged in a vacuum chamber, and a diffusion table made of graphite is fixedly arranged in the frame; the diffusion table is a vertically fixed cylindrical body, and a heating device composed of tungsten sticks is arranged on the periphery of the diffusion table; the diffusion table is a component which comprises a fixing base, a plurality of layers of graphite sheets with consistent thickness, a stainless steel stick and a C-shaped frame; a first sample cylinder chamber and a second sample cylinder chamber are respectively formed in the diffusion table, the first sample cylinder chamber is positioned in the center of the diffusion table, and the second sample cylinder chamber is positioned below the left side of the first sample cylinder chamber; the diffusion table has a preheating status bit, a welding status bit and a cooling status bit. The equipment realizes precision measurement of diffusion coefficients of the metal melts based on the thin-layer diffusion model and provides a reliable basis for relative metal research and casting.

Description

technical field [0001] The invention relates to a device for measuring the diffusion of metal melt based on a thin layer diffusion model and a method for preparing diffusion samples, which are used for the measurement of the interdiffusion coefficient of binary or multi-element alloys or other non-metallic materials in molten state. Background technique [0002] A lot of researches have been done on liquid diffusion at room temperature, such as the diffusion of copper sulfate solution in water. However, due to the limitation of technical conditions, so far there is no good diffusion equipment for high temperature molten metal alloy melt. [0003] The diffusion behavior of metal melts plays an important role in the solidification process of the melts and is a key kinetic parameter affecting the nucleation and growth of crystals. In the study of some alloy systems, it has been found that changing the diffusion coefficient of the melt can directly change the composition distri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N13/00G01N1/28
CPCG01N1/28G01N13/00G01N2013/003
Inventor 张博钟浪祥宛波耿永亮
Owner HEFEI UNIV OF TECH
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