Method for preparing and molding semisolid alloy pulp
A molding method, semi-solid technology, applied in the preparation and molding of semi-solid alloy slurry, the field of preparation and molding of semi-solid alloy slurry, can solve the problems of troublesome preparation process, complex overall equipment composition, etc., and reduce the preparation cost , Reduce preparation energy consumption, reduce the effect of difficulty
Inactive Publication Date: 2009-10-28
UNIV OF SCI & TECH BEIJING
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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
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[0030] A resistance melting furnace is used to generate a ZL101A aluminum alloy (ie hypoeutectic Al-7wt%Si-0.45wt%Mg aluminum alloy) solution with a superheat of 15℃ (that is, a pouring temperature of 630℃). The height of the vertical inverted conical channel is 300mm, the inner diameter of the lower opening is 15mm, the inverted taper is 1 degree (the angle between the inner wall of the inverted conical channel and the axis of the inverted conical channel), and the material of the inverted conical channel is graphite. Pour the ZL101A aluminum alloy liquid overheated 15℃ directly into the inverted conical channel, and flow into the austenitic stainless steel cylindrical preparation crucible along the inner wall of the inverted conical channel. When the ZL101A aluminum alloy liquid part When solidified, a semi-solid ZL101A aluminum alloy slurry can be obtained, and its structure is as figure 1 As shown; the preparation crucible together with the semi-solid ZL101A aluminum alloy sl...
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Abstract
The invention discloses a method for preparing and forming a semi-solid alloy slurry, which belongs to the technical field of semi-solid alloy preparation. Pour the superheated alloy liquid directly into a vertical inverted conical channel, and after the superheated alloy liquid flows into the preparation crucible along the inner wall of the inverted conical channel, move the preparation crucible together with the semi-solid alloy slurry in the preparation crucible into the In a temperature controller, subsequent cooling or temperature field control of the semi-solid alloy slurry is performed. Pour the semi-solid alloy slurry into the injection chamber of the die-casting machine or squeeze casting machine, or pour it into the forging die of the forging machine, and press to form it; when the semi-solid alloy slurry is completely solidified, open the mold or take it out The die casting, or the extrusion casting, or the forging. The advantages are that the process is simplified, the energy consumption is reduced, the process flow is shortened, and the production cost of the rheological part of the semi-solid alloy is reduced.
Description
Technical field [0001] The invention belongs to the technical field of semi-solid alloy preparation and molding, and particularly provides a preparation and molding method of semi-solid alloy slurry, which is suitable for the preparation and molding of semi-solid alloy slurry. Background technique [0002] Since the Massachusetts Institute of Technology (MIT) in the United States invented the semi-solid alloy forming technology in the early 1970s, the preparation and forming technology of semi-solid alloy slurry has attracted widespread attention and research in various countries. According to the literature "Behavior of metal alloys in the semisolid state" (MC 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 novel technique to produce metal slurries for semi-solid metal processing" (J Wannasin, RA Martinez, MC Flemings, [in] Proc of the 9th Int. Conf. of Semi-S...
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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