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WO2004061140A1 - Traitement de metaux semi-solides transformables et recyclables - Google Patents

Traitement de metaux semi-solides transformables et recyclables Download PDF

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Publication number
WO2004061140A1
WO2004061140A1 PCT/SG2003/000001 SG0300001W WO2004061140A1 WO 2004061140 A1 WO2004061140 A1 WO 2004061140A1 SG 0300001 W SG0300001 W SG 0300001W WO 2004061140 A1 WO2004061140 A1 WO 2004061140A1
Authority
WO
WIPO (PCT)
Prior art keywords
alloy
recited
temperature
module
metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/SG2003/000001
Other languages
English (en)
Inventor
Banghong Hu
Kin Kong Tong
Khiam Boon Lim
Su Xia Zhang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Singapore Institute of Manufacturing Technology
Original Assignee
Singapore Institute of Manufacturing Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Singapore Institute of Manufacturing Technology filed Critical Singapore Institute of Manufacturing Technology
Priority to PCT/SG2003/000001 priority Critical patent/WO2004061140A1/fr
Priority to AU2003303575A priority patent/AU2003303575A1/en
Publication of WO2004061140A1 publication Critical patent/WO2004061140A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/12—Making non-ferrous alloys by processing in a semi-solid state, e.g. holding the alloy in the solid-liquid phase
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium

Definitions

  • the contents of the refiner added in the molten alloy is about
  • Fig. 1B is a flowchart showing the subsequent steps of forming components or parts following that shown in Fig. 1A according to one embodiment of the present invention.
  • Figs. 2A and 2B are enlarged schematic views showing the microstructures of the alloy produced according to one embodiment of the invention.
  • Fig. 3A is a microscopic photograph showing the globular-like microstructure of an LM5 alloy slug formed according to the present invention
  • Fig. 3C is a microscopic photograph showing the globular-like microstructure of an A6082 alloy slug formed by using prior art electromagnetic agitation process
  • Fig. 4 is a chart showing the experimental results of mechanical properties of specimen formed according to the conventional electromagnetic agitation and the present invention
  • Fig. 5B is a fractograph showing microstructure of an LM5 alloy produced according to the present invention.
  • a method 100 for heat treating an alloy to modify its dendritic microstructure for improved semi-solid metal processing (SSMP) may be illustrated in Fig. 1 A.
  • SSMP semi-solid metal processing
  • the molten alloy with the refiner added is cooled down, under either normal gravity or high consolidation pressure by use of an injection system, to its solid phase and form an SSMP-processable alloy slug.
  • Fig. 3A shows that, an LM5 alloy processed according to the present invention possesses a globular-like microstructure, which is significantly different from the dendritic microstructure of a prior art die-casting alloy, as shown in Fig. 3B.
  • the microstructure shown in Fig. 3A is substantially similar to an A6082 alloy produced by the conventional electromagnetic agitation process, as shown in Fig. 3C.
  • the scraps generated by the die-casting machine 650 may be collected by the recycling module 660 and supplied back to the furnace 610 for recycling purpose.
  • a controlling module 670 may be provided to control and coordinate the operations of the furnace 610, the refining module 620, the cooling module 630, the re-heating module 640, the die-casting machine 650 and the recycling module 660 to regulate and optimize the operation of the system.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Continuous Casting (AREA)

Abstract

L'invention porte sur un procédé et sur un système de traitement d'un alliage pour modifier sa microstructure dendritique en vue d'une transformabilité améliorée des métaux semi-solides. Le procédé consiste à chauffer l'alliage à une première température supérieure à sa température dite « liquidus » de façon à obtenir un alliage fondu, et à ajouter à l'alliage fondu un affineur. On solidifie ensuite l'alliage fondu de façon à obtenir une pastille d'alliage à microstructure globulaire et/ou équiaxe de façon à produire des composants ou pièces métalliques. Le système comprend un module de chauffage (120), un module d'affinage (130) et un module de refroidissement (140). Le module de chauffage (120) chauffe un matériau métallique à une température supérieure à sa température dite «liquidus » afin de faire fondre le matériau métallique. Le système de raffinage (130) reçoit le matériau métallique fondu du module de chauffage (130) et ajoute un affineur dans le métal fondu. Le matériau métallique auquel on ajouté l'affineur est ensuite solidifié dans le module de solidification (140) afin de former une pastille métallique à microstructure globulaire et/ou équiaxe.
PCT/SG2003/000001 2003-01-03 2003-01-03 Traitement de metaux semi-solides transformables et recyclables Ceased WO2004061140A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/SG2003/000001 WO2004061140A1 (fr) 2003-01-03 2003-01-03 Traitement de metaux semi-solides transformables et recyclables
AU2003303575A AU2003303575A1 (en) 2003-01-03 2003-01-03 Transformable and recyclable semi-solid metal processing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SG2003/000001 WO2004061140A1 (fr) 2003-01-03 2003-01-03 Traitement de metaux semi-solides transformables et recyclables

Publications (1)

Publication Number Publication Date
WO2004061140A1 true WO2004061140A1 (fr) 2004-07-22

Family

ID=32710079

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SG2003/000001 Ceased WO2004061140A1 (fr) 2003-01-03 2003-01-03 Traitement de metaux semi-solides transformables et recyclables

Country Status (2)

Country Link
AU (1) AU2003303575A1 (fr)
WO (1) WO2004061140A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008227523A (ja) * 2004-12-28 2008-09-25 Nichia Chem Ind Ltd 窒化物蛍光体及びその製造方法並びに窒化物蛍光体を用いた発光装置
CN100449020C (zh) * 2005-09-30 2009-01-07 郑州大学 一种含铝镁合金稀土相的变质剂及其制备方法和应用
CN104259417A (zh) * 2014-09-18 2015-01-07 珠海市润星泰电器有限公司 一种用于制备金属半固态浆料的合金变质剂

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0554808A1 (fr) * 1992-01-30 1993-08-11 EFU GESELLSCHAFT FÜR UR-/UMFORMTECHNIK mbH Procédé de fabrication des pièces métalliques
US5846350A (en) * 1995-04-14 1998-12-08 Northwest Aluminum Company Casting thermal transforming and semi-solid forming aluminum alloys
WO2001009401A1 (fr) * 1999-07-28 2001-02-08 Sm Schweizerische Munitionsunternehmung Ag Procede de production d'une matiere premiere constituee d'un alliage metallique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0554808A1 (fr) * 1992-01-30 1993-08-11 EFU GESELLSCHAFT FÜR UR-/UMFORMTECHNIK mbH Procédé de fabrication des pièces métalliques
US5846350A (en) * 1995-04-14 1998-12-08 Northwest Aluminum Company Casting thermal transforming and semi-solid forming aluminum alloys
WO2001009401A1 (fr) * 1999-07-28 2001-02-08 Sm Schweizerische Munitionsunternehmung Ag Procede de production d'une matiere premiere constituee d'un alliage metallique

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008227523A (ja) * 2004-12-28 2008-09-25 Nichia Chem Ind Ltd 窒化物蛍光体及びその製造方法並びに窒化物蛍光体を用いた発光装置
CN100449020C (zh) * 2005-09-30 2009-01-07 郑州大学 一种含铝镁合金稀土相的变质剂及其制备方法和应用
CN104259417A (zh) * 2014-09-18 2015-01-07 珠海市润星泰电器有限公司 一种用于制备金属半固态浆料的合金变质剂
CN104259417B (zh) * 2014-09-18 2016-03-02 珠海市润星泰电器有限公司 一种用于制备金属半固态浆料的合金变质剂
US10322448B2 (en) 2014-09-18 2019-06-18 Zhuhai Runxingtai Electrical Co., Ltd Alloy modifying agent for use in preparing metal semisolid slurry

Also Published As

Publication number Publication date
AU2003303575A1 (en) 2004-07-29

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