Method for preparing semi-solid metal slurry and rheologic molding

A semi-solid metal and slurry technology, used in metal extrusion control equipment, metal processing equipment, metal extrusion and other directions, can solve the problems of troublesome preparation process and complex overall equipment structure, so as to reduce preparation cost and reduce preparation Energy consumption, the effect of improving mobility

Inactive Publication Date: 2008-02-27
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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

Method used

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  • Method for preparing semi-solid metal slurry and rheologic molding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1, using a resistance melting furnace to produce a ZL101A aluminum alloy liquid with a degree of superheat of 15°C (that is, a pouring temperature of 630°C), the height of the inclined pipe section of the inclined straight composite pipe passage is 10mm, and the inner wall of the inclined pipe section is perpendicular to the ground plane. The included angle is 5 degrees; the height of the vertical section of the oblique straight composite pipe channel is 100 mm, the inner diameter of the oblique straight composite pipe channel is 15 mm, and the material of the oblique straight composite pipe channel is graphite. The ZL101A aluminum alloy liquid overheated at 15°C is directly poured into the channel of the inclined straight composite pipe, and flows into the cylindrical preparation crucible of austenitic stainless steel along the inner wall of the inclined straight composite pipe channel. When the ZL101A aluminum alloy When the liquid is partially solidified, t...

Embodiment 2

[0023] Embodiment 2, using a resistance melting furnace to produce a ZL101A aluminum alloy liquid with a degree of superheat of 15°C (that is, a pouring temperature of 630°C), the height of the inclined pipe section of the inclined straight composite pipe passage is 50mm, and the inner wall of the inclined pipe section is perpendicular to the ground plane. The included angle is 10 degrees; the height of the vertical pipe section of the oblique straight composite pipe channel is 50 mm, the inner diameter of the oblique straight composite pipe channel is 20 mm, and the material of the oblique straight composite pipe channel is graphite. The ZL101A aluminum alloy liquid overheated at 15°C is directly poured into the channel of the inclined straight composite pipe, and flows into the cylindrical preparation crucible of austenitic stainless steel along the inner wall of the inclined straight composite pipe channel. When the ZL101A aluminum alloy When the liquid is partially solidifi...

Embodiment 3

[0024] Embodiment 3, using a resistance melting furnace to produce a ZL101A aluminum alloy liquid with a degree of superheat of 85°C (that is, a pouring temperature of 700°C), the height of the inclined pipe section of the inclined straight composite pipe passage is 200mm, and the inner wall of the inclined pipe section is perpendicular to the ground plane. The included angle is 30 degrees; the height of the vertical pipe section of the oblique straight composite pipe passage is 200mm, the inner diameter of the oblique straight composite pipe passage is 30mm, and the material of the oblique straight composite pipe passage is graphite; in the process of pouring the ZL101A aluminum alloy liquid, The inclined and straight composite pipe channel is cooled by the cooling water jacket set outside. The ZL101A aluminum alloy liquid overheated at 85°C is directly poured into the inclined straight composite pipe channel, and flows into the cylindrical graphite preparation crucible along ...

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Abstract

The invention discloses a preparing technique of semi-solid metal slurry and rheologic moulding equipment in the preparing technical domain of semi-solid metal slurry, which comprises the following steps: pouring the overheat metal liquid into straight-in composite tube path with an inclined tube and a vertical tube; moving the semi-solid metal slurry and preparing copper into the temperature controller after flowing the overheat metal liquid into the copper along the inner wall of the straight-in composite tube path; doing subsequent cooling or temperature field control for the semi-solid metal slurry; pouring the semi-solid metal slurry into pressing chamber with squeeze moulding machine or squeeze caster or forger to mould; opening or fetching the cast piece or squeeze cast or forge from mould. The invention simplifies the preparing technique, reduces energy consumption and shortens the technical flow path, which reduces the manufacturing cost of the semi-solid metal rheopectic casting die or rheopectic squeeze casting die or rheopectic forge.

Description

technical field [0001] The invention belongs to the technical field of preparation and molding of semi-solid metal paste, and particularly provides a preparation and rheological molding method of semi-solid metal paste, which is suitable for the preparation and molding of semi-solid metal paste. Background technique [0002] Since the invention of semi-solid metal forming technology by Massachusetts Institute of Technology (MIT) in the early 1970s, the preparation and forming technology of semi-solid metal paste 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. Conf. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D1/00B22D17/32B22D18/08B21C31/00
Inventor 毛卫民杨小容
Owner UNIV OF SCI & TECH BEIJING
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