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A device for refining metal solidification structure by pulse current

A technology of metal solidification and pulse current, which is applied in the field of metal material processing to achieve the effect of refining grains, improving quality and optimizing processing technology

Active Publication Date: 2017-02-01
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the unfavorable problems in the process of refining the metal solidification structure with pulse current, simplify the pulse current treatment process, enhance the pulse current treatment effect and optimize the pulse current treatment process, and at the same time improve the quality of the processed melt and the controllability of the treatment process

Method used

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  • A device for refining metal solidification structure by pulse current
  • A device for refining metal solidification structure by pulse current
  • A device for refining metal solidification structure by pulse current

Examples

Experimental program
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Effect test

Embodiment 1

[0023] The device for refining metal solidification structure with pulse current according to this embodiment includes a furnace 1, a heating coil I2, a thermocouple I3, a support I5, a runner 6, a holding furnace 7, a heating coil II8, a support II9, and a crystallizer 12 , high-voltage pulse power supply 13, compensation wire 14, heat-insulating asbestos 15, electrode 16, thermocouple II 17, support I5 is connected with support II 9, and is used to support the whole device; There is a heating coil I2, and a thermocouple I3 is hung on the top of the furnace 1 and extends into the interior of the furnace 1; Thermal asbestos 15; crystallizer 12 is placed in holding furnace 7, runner 6 passes through heat insulating asbestos 15 and is aligned with crystallizer 12; electrode 16 and thermocouple II 17 pass through heat insulating asbestos 15 and extend into crystallizer 12; high voltage pulse The power supply 13 is connected to the electrode 16 through the compensation wire 14, su...

Embodiment 2

[0030]The device for refining metal solidification structure with pulse current according to this embodiment includes a furnace 1, a heating coil I2, a thermocouple I3, a support I5, a runner 6, a holding furnace 7, a heating coil II8, a support II9, and a crystallizer 12 , high-voltage pulse power supply 13, compensation wire 14, heat-insulating asbestos 15, electrode 16, thermocouple II 17, support I5 is connected with support II 9, and is used to support the whole device; There is a heating coil I2, and a thermocouple I3 is hung on the top of the furnace 1 and extends into the interior of the furnace 1; Thermal asbestos 15; crystallizer 12 is placed in holding furnace 7, runner 6 passes through heat insulating asbestos 15 and is aligned with crystallizer 12; electrode 16 and thermocouple II 17 pass through heat insulating asbestos 15 and extend into crystallizer 12; high voltage pulse The power supply 13 is connected to the electrode 16 through the compensation wire 14, suc...

Embodiment 3

[0038] The device for refining metal solidification structure with pulse current according to this embodiment includes a furnace 1, a heating coil I2, a thermocouple I3, a support I5, a runner 6, a holding furnace 7, a heating coil II8, a support II9, and a crystallizer 12 , high-voltage pulse power supply 13, compensation wire 14, heat-insulating asbestos 15, electrode 16, thermocouple II 17, support I5 is connected with support II 9, and is used to support the whole device; There is a heating coil I2, and a thermocouple I3 is hung on the top of the furnace 1 and extends into the interior of the furnace 1; Thermal asbestos 15; crystallizer 12 is placed in holding furnace 7, runner 6 passes through heat insulating asbestos 15 and is aligned with crystallizer 12; electrode 16 and thermocouple II 17 pass through heat insulating asbestos 15 and extend into crystallizer 12; high voltage pulse The power supply 13 is connected to the electrode 16 through the compensation wire 14, su...

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Abstract

The invention relates to a device for refining a metal solidification structure with electric current pulses, and belongs to the technical field of metal material machining. The device mainly comprises a smelting device, an electric current pulse generating device and a heat insulation and solidification device. The smelting device is used for smelting molten metal, an appropriate pouring temperature is controlled, and the molten metal is injected into the heat insulation and solidification device through a pouring channel. In the solidification process, the electric current pulse generating device is used for exerting the electric current pulses with in a certain parameter range, and the metal solidification structure is refined. In the refining process, the cooling speed of the molten metal can be controlled by the means of heat insulation or heating or introducing of cooling water, the structure is promoted to be solidified simultaneously, and therefore a refining technology is optimized. The device integrates with smelting, pouring and solidifying with electric current pulse refining processing of alloy, the entire process is achieved at a time, the process is simple, the repeatability is high, a good effect is achieved on refining the metal solidification structure, and meanwhile the quality of the processed smelt and the controllability of the processing process are improved.

Description

technical field [0001] The invention relates to a device for refining metal solidification structure with pulse current, belonging to the technical field of metal material processing. Background technique [0002] In the field of material science and technology, the refinement of metal solidification structure is one of the important ways to improve the performance and expand the use of metal materials. With the development of modern science and technology, people's requirements for material properties are constantly increasing, and the refinement or improvement of metal solidification structure is conducive to improving the mechanical properties of materials. With the continuous development of solidification technology, many emerging solidification structure refinement processes have emerged, among which the impact of electric current pulse (ECP) on metal solidification structure is very significant, the refinement effect is obvious, clean and effective, and low cost. beco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D27/02
Inventor 周荣锋吕海洋李璐张玲蒋业华周荣
Owner KUNMING UNIV OF SCI & TECH
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