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Rapid immersion type metal solidification heat transfer test device and application and application method thereof

A technology of metal solidification and testing device, which is applied in the direction of material thermal development, etc., can solve problems such as inability to test heat flow, and achieve the effect of simple testing method, accurate measurement and less operation process

Inactive Publication Date: 2017-05-10
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although the above two patents have advantages in their respective tests, they cannot test the heat flow during the rapid solidification of metals. For the field of iron and steel metallurgical continuous casting production, the heat flow during solidification is an extremely important factor affecting the quality of the slab

Method used

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  • Rapid immersion type metal solidification heat transfer test device and application and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The rapid immersion metal solidification heat transfer test experiment adopts such as figure 1 The shown rapid immersion metal solidification heat transfer test device is used to determine the rapid solidification heat transfer of metals, which specifically includes the following sequential steps:

[0053] (1) Loading: Open the protective gas cover with the sealing ring, put 23kg steel sample into the induction furnace, and close the cover of the protective gas cover.

[0054] (2) Gas protection: Seal the protective gas cover, then fill it with Ar protective gas, and continue to ventilate for a period of time, and finally make the protective gas cover full of protective gas.

[0055] (3) Molten metal: Heat the steel sample in the induction furnace to the target melting temperature by electric heating.

[0056] (4) Immersion test: Open the cooling water pipeline in the copper mold, and control the circulating flow of cooling water to 7.5L / min, control the copper mold to...

Embodiment 2

[0061] The rapid immersion metal solidification heat transfer test experiment adopts such as figure 1 The shown rapid immersion metal solidification heat transfer test device is used to determine the rapid solidification heat transfer of metals, which specifically includes the following sequential steps:

[0062] (1) Loading: Open the protective gas cover with the sealing ring, put 23kg steel sample into the induction furnace, and close the cover of the protective gas cover.

[0063] (2) Gas protection: Seal the protective gas cover, then fill it with Ar protective gas, and continue to ventilate for a period of time, and finally make the protective gas cover full of protective gas.

[0064] (3) Molten metal: Heat the steel sample in the induction furnace to the target melting temperature by electric heating.

[0065] (4) Immersion test: Open the cooling water pipeline in the copper mold, and control the cooling water circulation flow rate to 5L / min, control the copper mold to...

Embodiment 3

[0069] The rapid immersion metal solidification heat transfer test experiment adopts such as figure 1 The shown rapid immersion metal solidification heat transfer test device is used to determine the rapid solidification heat transfer of metals, which specifically includes the following sequential steps:

[0070] (1) Loading: Open the protective gas cover with the sealing ring, put 23kg steel sample into the induction furnace, and close the cover of the protective gas cover.

[0071] (2) Gas protection: Seal the protective gas cover, then fill it with Ar protective gas, and continue to ventilate for a period of time, and finally make the protective gas cover full of protective gas.

[0072] (3) Molten metal: Heat the steel sample in the induction furnace to the target melting temperature by electric heating.

[0073] (4) Immersion test: Open the cooling water pipeline in the copper mold, and control the cooling water circulation flow rate to 10L / min, control the copper mold t...

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Abstract

The invention discloses a rapid immersion type metal solidification heat transfer test device and an application method of the device. The test device comprises a mechanical system, a data acquisition system and an atmosphere control system; the mechanical system comprises an induction furnace heated electrically, and an immersion type copper mould controlled by a motor; the data acquisition system comprises a thermocouple located in the copper mould and an external data acquisition card and computer; the atmosphere control system comprises a protective gas hood for accommodating the induction furnace and the copper mould, gas inlet and outlet pipes and a gas cylinder; the mechanical system and key parts of the data acquisition system are both arranged in an atmosphere protection room of the atmosphere control system. The test equipment disclosed by the invention is simple and easy in method, high in accuracy and wide in application range and can be used for carrying out heat transfer testing during a metal rapid solidification process in a laboratory scale, thereby replacing direct testing in industrial production, not affecting the normal production, and further being small in consumption and low in test cost.

Description

technical field [0001] The invention relates to a rapid immersion type metal solidification heat transfer test device and method, belonging to the technical field of rapid prototyping of metal materials. Background technique [0002] The iron and steel industry is the basic industry of the national economy and supports the stable development of my country's economy. In the steel production process, casting is the step where a liquid becomes a solid and is a critical step in the production of steel products. In recent years, continuous steel casting technology is the dominant method of molten steel casting in recent years. Advanced continuous casting technology requires better slab quality, and at the same time requires the slab to solidify at a faster cooling rate to improve steel production efficiency. This means that at the same time, the heat transferred from the molten steel to the outside increases greatly. In particular, the recent rapid development of new thin stri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/20
CPCG01N25/20
Inventor 王万林周乐君谢森林朱晨阳路程李欢
Owner CENT SOUTH UNIV
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