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Shunt converging pouring gate preparation semisolid slurry and rheoforming device

A semi-solid slurry and rheological forming technology, which is applied in the field of equipment for preparing semi-solid slurry and rheological forming by splitting and converging runners, can solve disadvantages and other problems, and achieve reduction of preparation cost, reduction of preparation energy consumption, The effect of low production cost

Inactive Publication Date: 2013-10-09
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the equipment of the above technologies, there is no special flow diversion and confluence channel for casting light alloy melts such as magnesium and aluminum, that is, the diversion and confluence channel is not used to cool and stir the alloy melt to promote nucleation

Method used

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  • Shunt converging pouring gate preparation semisolid slurry and rheoforming device
  • Shunt converging pouring gate preparation semisolid slurry and rheoforming device
  • Shunt converging pouring gate preparation semisolid slurry and rheoforming device

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0028] (1) The liquidus line of the ZL101A aluminum alloy used in the test is 615°C. Melt the alloy in a crucible resistance furnace. When the temperature of the alloy reaches about 720°C, use a bell jar to press the dried hexachloroethane into the melt The lower part (the addition amount is 0.5% of the total weight of the alloy liquid) is gently shaken to carry out the degassing and slag removal refining treatment of the alloy melt, and finally the temperature of the alloy melt is lowered to 630°C for heat preservation.

[0029] (2) Set the temperature of the diverging and converging runner of the device of the present invention to 200°C, the angle between the diverging and converging runner and the horizon is 45°, and pour the molten alloy melted in the previous step into the diverging and converging channel through the feed port , the alloy melt flows from top to bottom along the sprue wall, first diverging and then converging, under the sufficient cooling of the cylinder wa...

example 2

[0031] (1) The liquidus temperature of the A356 aluminum alloy used in the test is 615°C. The aluminum alloy ingot is put into a crucible resistance furnace with a preheating temperature of 400°C. After the temperature of the alloy liquid reaches 700°C, it is refined. Press the dried hexachloroethane into the lower part of the melt (the amount added is 0.5% of the total weight of the alloy liquid), and shake it gently to degas the alloy melt, remove slag and refine it, and finally melt the alloy Body temperature drops to 640°C for heat preservation.

[0032] (2) Combine the two half-molds of the diverging and converging runners, set the temperature of the diverging and converging runners to 150°C, and the angle between the diverging and converging runners and the horizon to be 60°, and pass the molten alloy smelted in the previous step through the feed The mouth is poured into the diversion and confluence channel, and the alloy melt flows from top to bottom along the runner wa...

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Abstract

The invention discloses a shunt converging pouring gate preparation semisolid slurry and rheoforming device, and belongs to the technical field of semisolid metal processing. The shunt converging pouring gate preparation semisolid slurry and rheoforming device is composed of a pouring cup, a metal melting body, a shunt converging pouring gate, a graphite plate, cooling and heating elements, a preparation crucible, a temperature controller, a heater, a pressure die casting machine and a pressing chamber, an injection plunger, a squeezing casting machine and a pressing chamber, an injection plunger, a casting machine, a lower die and an upper die. According to the shunt converging pouring gate manufacturing semisolid slurry and rheoforming device, the shunt converging channel is use for achieving the cooling and stirring of the alloy melting body to promote nucleation and prepare the semisolid slurry, and the prepared semisolid slurry, the pressure die casting machine, and the squeezing machine and the casting machine are combined to carry out rheoforming. The shunt converging pouring gate manufacturing semisolid slurry and eheoforming device is simple in structure, less in investment, low in production cost, stable and reliable in continuous manufacturing working, and very suitable for manufacturing and forming production of the semisolid metal slurry and blank.

Description

technical field [0001] The invention belongs to the technical field of semi-solid metal processing, and in particular provides a device for preparing semi-solid slurry and rheological deformation by splitting and merging runners. Background technique [0002] Since the early 1970s, researchers such as M C Flemings of the Massachusetts Institute of Technology created the concept of metal semi-solid forming, and the preparation and forming technology of semi-solid metal paste has attracted widespread attention from all over the world as a new technology. According to the literature "Behavior of metal alloys in the semisolid state" (M C Flemings, Metall Trans, 1991, 22A: 957-981), "a suspension cone type semi-solid metal slurry preparation and delivery device" (Kang Yonglin, China Patent, 200810114097.3, 2008) and "Semi-solid Processing Theory and Technology of Metal Materials" (editors: Kang Yonglin, Mao Weimin, Hu Zhuangqi, Science Press, 2004) reported that there are many me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D1/00B22D18/02B22D17/30
Inventor 康永林周冰朱国明祁明凡张欢欢
Owner UNIV OF SCI & TECH BEIJING
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