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Peritectic alloy-like analogue directional solidification crystallizer suitable for working under function of current

A technology of directional solidification and current action, applied in the direction of self-solidification, single crystal growth, crystal growth, etc., can solve the problems of increasing unstable factors, inability to accurately control temperature gradients, and inability to ensure the sealing of the melting area. , to achieve the effect of ensuring sealing, solving directional solidification experiments and real-time observation problems, and avoiding lateral heat dissipation

Active Publication Date: 2014-01-15
HARBIN INST OF TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

However, the crystallizer adopts a mechanically connected structure, so that the sealing of the melting area cannot be guaranteed, and hot water is used as the heating medium, which is not conducive to forming a larger temperature gradient G at both ends of the melting area. T , and there is also the problem of lateral heat dissipation, which will cause the temperature gradient during the directional solidification process to be unable to be accurately controlled, resulting in increased instability in the directional solidification process of peritectic alloy simulants under the action of an electric field

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  • Peritectic alloy-like analogue directional solidification crystallizer suitable for working under function of current
  • Peritectic alloy-like analogue directional solidification crystallizer suitable for working under function of current
  • Peritectic alloy-like analogue directional solidification crystallizer suitable for working under function of current

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Embodiment Construction

[0027] The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] The structural schematic diagram of the directional solidification crystallizer suitable for peritectic alloy simulants under the action of current in this embodiment is as follows figure 1 As shown, the crystallizer includes a symmetrically arranged copper heat conduction plate 1 at the hot end of the melting zone and a copper heat conduction plate 10 at the cold end of the melting zone. The glass sheet 2 is connected, and the middle part of the glass sheet 2 is provided with a melting area 9; the copper heat conduction plate 1 at the hot end of the melting area is provided with a red copper electrode terminal 3 at the hot end of the melting area, and the end is bonded with silica gel. The hot-end liquid circulation heat transfer block 4, the hot-end liquid circulation heat transfer block 4 is connected to the hot-end liqui...

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Abstract

The invention provides a peritectic alloy-like analogue directional solidification crystallizer suitable for working under the function of current and belongs to an experimental apparatus for peritectic alloy-like analogue directional solidification under the function of current. A melting-zone hot-end red copper heat-transfer plate and a melting-zone cold-end red copper heat-transfer plate are connected through glass sheets which are bonded with silica gel, so that the leak tightness of a melting zone is guaranteed to facilitate the formation of a stable temperature gradient GT at two ends of the melting zone, and the lateral heat dissipation is avoided. Besides, compared with the crystallizers manufactured by mechanical connection in the prior art, the crystallizer can control the temperature gradient in the directional solidification process more accurately, and provides the support for the experiment and real-time observation on directional solidification of high-melting point peritectic alloy-like analogues under the function of current.

Description

technical field [0001] A crystallizer suitable for directional solidification of quasi-peritectic alloy simulants under the action of electric current belongs to an experimental device for directional solidification of quasi-peritectic alloy simulants under the action of electric current. Background technique [0002] Among many intermetallic compounds, TiAl-based alloys with multiple peritectic reactions are excellent due to their high specific strength, high specific stiffness, high temperature oxidation resistance, creep resistance and hydrogen embrittlement resistance. Heat-resistant and lightweight materials will have great application potential in improving the working efficiency of engines. However, the poor room temperature plasticity of TiAl-based alloys is the main obstacle limiting the promotion and application of TiAl-based alloys. At present, controlling the solidification process of alloy materials is an important means to improve the performance of castings a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B11/00C30B30/02
Inventor 丁宏升孙宏喆陈占兴王永喆王国田
Owner HARBIN INST OF TECH
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