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HK8189A - Method for making thixotropic materials - Google Patents

Method for making thixotropic materials Download PDF

Info

Publication number
HK8189A
HK8189A HK81/89A HK8189A HK8189A HK 8189 A HK8189 A HK 8189A HK 81/89 A HK81/89 A HK 81/89A HK 8189 A HK8189 A HK 8189A HK 8189 A HK8189 A HK 8189A
Authority
HK
Hong Kong
Prior art keywords
alloy
extruder
liquid
metal
temperature
Prior art date
Application number
HK81/89A
Other languages
German (de)
English (en)
Inventor
Robert Scholley Busk
Original Assignee
The Dow Chemical Company
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23271670&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HK8189(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by The Dow Chemical Company filed Critical The Dow Chemical Company
Publication of HK8189A publication Critical patent/HK8189A/en

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/004—Thixotropic process, i.e. forging at semi-solid state
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S164/00—Metal founding
    • Y10S164/90—Rheo-casting

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Glass Compositions (AREA)
  • Forging (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Prostheses (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Conductive Materials (AREA)
  • Tires In General (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Adornments (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (9)

1. Procédé de fabrication d'un alliage métallique liquide-solide comportant:
- amener l'alliage métallique dans le cylindre d'une extrudeuse,
- chauffer l'alliage métallique à une température supérieure à la température du solidus de l'alliage, mais inférieure à la température du liquidus de l'alliage,
- soumettre le métal chauffé à une action de cisaillement dans ladite extrudeuse, ladite extrudeuse comportant 1) une vis tournante, 2) au moins un plateau tournant, ou bien ladite extrudeuse étant une extrudeuse à trajet tourmenté, ladite action de cisaillement étant suffisante pour briser au moins une portion des structures dendritiques de l'alliage métallique pour former une composition d'alliage métallique liquide-solides.
2. Le procédé de la revendication 1, caractérisé en ce que l'alliage métallique est un alliage de magnésium.
3. Le procédé de la revendication 2, caractérisé en ce que l'alliage de magnésium est constitué de 9 % AI, 0,7 % Zn, 0,2 % Mn, le reste étant du magnésium.
4. Le procédé de la revendication 3, caractérisé en ce que la composition d'alliage métallique liquide-solide contient jusqu'à environ 65 % en poids de solides.
5. Le procédé de l'une quelconque des revendications précédentes, incluant l'étape de mouler par injection l'alliage métallique pour former des pièces.
6. Le procédé de l'une quelconque des revendications précédentes, caractérisé en ce que l'extrudeuse à vis est une extrudeuse à vis à mouvement de va-et-vient.
7. Le procédé de la revendication 1 ou 2, incluant la mise en forme du métal liquide-solide en utilisant une machine de moulage par injection à chambre froide sous haute pression.
8. Le procédé de la revendication 1 ou 2, incluant la mise en forme du métal liquide-solide en utilisant une machine de forgeage.
9. Le procédé des revendications 1-8, incluant le fait de préchauffer l'alliage métallique à une température inférieure à la température du solidus de l'alliage.
HK81/89A 1981-12-01 1989-01-26 Method for making thixotropic materials HK8189A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/326,305 US4694882A (en) 1981-12-01 1981-12-01 Method for making thixotropic materials

Publications (1)

Publication Number Publication Date
HK8189A true HK8189A (en) 1989-02-03

Family

ID=23271670

Family Applications (1)

Application Number Title Priority Date Filing Date
HK81/89A HK8189A (en) 1981-12-01 1989-01-26 Method for making thixotropic materials

Country Status (16)

Country Link
US (1) US4694882A (fr)
EP (1) EP0080787B1 (fr)
JP (1) JPS58502002A (fr)
KR (1) KR870001321B1 (fr)
AT (1) ATE27714T1 (fr)
AU (1) AU540021B2 (fr)
BR (1) BR8208006A (fr)
CA (1) CA1202788A (fr)
DE (1) DE3276539D1 (fr)
DK (1) DK158913C (fr)
ES (1) ES517802A0 (fr)
HK (1) HK8189A (fr)
NO (1) NO161512C (fr)
NZ (1) NZ202615A (fr)
WO (1) WO1983001961A1 (fr)
ZA (1) ZA828731B (fr)

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US6312534B1 (en) 1994-04-01 2001-11-06 Brush Wellman, Inc. High strength cast aluminum-beryllium alloys containing magnesium
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US6321824B1 (en) 1998-12-01 2001-11-27 Moen Incorporated Fabrication of zinc objects by dual phase casting
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Also Published As

Publication number Publication date
EP0080787B1 (fr) 1987-06-10
KR870001321B1 (ko) 1987-07-13
DK158913C (da) 1990-12-31
NO832743L (no) 1983-07-28
WO1983001961A1 (fr) 1983-06-09
EP0080787A3 (en) 1983-07-13
BR8208006A (pt) 1983-10-18
AU540021B2 (en) 1984-10-25
EP0080787A2 (fr) 1983-06-08
DK327883D0 (da) 1983-07-15
ATE27714T1 (de) 1987-06-15
AU1048783A (en) 1983-06-17
ZA828731B (en) 1984-07-25
DK327883A (da) 1983-07-15
ES8402025A1 (es) 1983-12-16
DK158913B (da) 1990-07-30
NO161512B (no) 1989-05-16
NZ202615A (en) 1985-03-20
DE3276539D1 (en) 1987-07-16
KR840002910A (ko) 1984-07-21
CA1202788A (fr) 1986-04-08
ES517802A0 (es) 1983-12-16
US4694882A (en) 1987-09-22
NO161512C (no) 1989-08-23
JPS58502002A (ja) 1983-11-24

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Legal Events

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