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Method for preparing and rheologic molding semisolid alloy pulp

A semi-solid and alloy technology, applied in the direction of metal processing equipment, etc., can solve the problems of troublesome preparation process and complex structure of the overall equipment, and achieve the effect of reducing preparation cost, energy consumption and difficulty

Inactive Publication Date: 2007-07-25
UNIV OF SCI & TECH BEIJING
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  • Abstract
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  • Application Information

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Problems solved by technology

However, this method also requires special mechanical stirring equipment when preparing semi-solid alloy slurry, the composition of the overall equipment is complicated, and the preparation process is cumbersome

Method used

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  • Method for preparing and rheologic molding semisolid alloy pulp

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Embodiment Construction

[0025] Using a resistance melting furnace to produce ZL101A aluminum alloy (i.e. hypoeutectic Al-7wt% Si-0.45wt% Mg aluminum alloy) liquid with a superheat of 15°C (i.e. the pouring temperature is 630°C), the height of the vertical serpentine runner The diameter is 100mm, the inner diameter is 10mm, the inner arc bend of the serpentine runner is one, and the material of the serpentine runner is graphite. Pour ZL101A aluminum alloy liquid overheated at 15°C directly into the serpentine runner, and flow into the austenitic stainless steel cylindrical preparation crucible along the inner wall of the serpentine runner. When the ZL101A aluminum alloy liquid partially solidifies , the semi-solid ZL101A aluminum alloy slurry can be obtained; the preparation crucible and the semi-solid ZL101A aluminum alloy slurry therein are moved to a temperature controller, which is composed of a 1000Hz intermediate frequency electromagnetic induction coil, and its power is controlled To further co...

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Abstract

This invention discloses a method for preparing and rheological-molding semi-solid alloy slurry. The method comprises: pouring overheated molten alloy into a crucible through a vertical snake-shaped channel, transferring the crucible with semi-solid alloy slurry into a temperature controller, post-cooling or controlling the temperature field of the semi-solid alloy slurry, pouring the semi-solid alloy slurry into the chamber of an extrusion-casting machine or a press-casting machine, or into the mold of a forging machine, pressing for molding, curing, demolding, and talking out the cast. The method has such advantages as simplified process, lowered energy consumption, shortened process flow, and lowered cost.

Description

technical field [0001] The invention belongs to the technical field of preparation and molding of semi-solid alloy slurry, and particularly provides a preparation and rheological forming method of semi-solid alloy slurry, which is suitable for the preparation and molding of semi-solid alloy slurry. Background technique [0002] Since the invention of semi-solid alloy forming technology by Massachusetts Institute of Technology (MIT) in the early 1970s, the preparation and forming technology of semi-solid alloy slurry has attracted extensive attention and research from all over the world. According to the literature "Behavior of metal alloys in the semisolid state" (M C Flemings, MetallTrans, 1991, 22A: 957-981), "Method and apparatus for shaping semisolid metals" (A Mitsuru, S Hiroto, H Yasunori, et al, EP Patent, 0745694A1, 1996), "A noveltechnique to produce metal slurries for semi-solid metal processing" (J Wannasin, R A Martinez, M C Flemings, [in] Proc of the 9th Int. Co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/00B22D17/00B22D27/04B21J5/02
Inventor 毛卫民杨小容赵振铎汤国兴
Owner UNIV OF SCI & TECH BEIJING
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