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DE59306300D1 - Process for the production of molded parts from metal alloys - Google Patents

Process for the production of molded parts from metal alloys

Info

Publication number
DE59306300D1
DE59306300D1 DE59306300T DE59306300T DE59306300D1 DE 59306300 D1 DE59306300 D1 DE 59306300D1 DE 59306300 T DE59306300 T DE 59306300T DE 59306300 T DE59306300 T DE 59306300T DE 59306300 D1 DE59306300 D1 DE 59306300D1
Authority
DE
Germany
Prior art keywords
metal alloys
curve
solidus
branch
grain
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.)
Expired - Fee Related
Application number
DE59306300T
Other languages
German (de)
Inventor
Gang Dr Ing Wan
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.)
EFU GES fur UR UMFORMTECHNIK
Original Assignee
EFU GES fur UR UMFORMTECHNIK
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 EFU GES fur UR UMFORMTECHNIK filed Critical EFU GES fur UR UMFORMTECHNIK
Application granted granted Critical
Publication of DE59306300D1 publication Critical patent/DE59306300D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Forging (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

The invention relates to a process for producing shaped parts made of metal alloys, in which the metal alloys are brought into the molten state and according to conventional casting methods are cast to produce geometrically simple shapes, which is followed by heating to a temperature between the solidus and the liquidus line to form a thixotropic slip, which consists of a solid-liquid mixture of rounded primary particles homogeneously distributed in a melt matrix and which after a holding time is passed to a shaping system. The object of the invention is to simplify and make more economical the preparation of rheo-alloy blanks having a close-grained and homogeneous microstructure. To this end it is provided that the metal alloys are admixed in the molten state with an amount of grain refiner which is increased compared to conventional grain refining, said increased amount being determined from a curve of a diagram in which the particle size in mu m is plotted against the addition of grain refiner in per cent by weight, said curve being known for the individual alloys and grain refiners and having a steeply descending first branch and a second branch proceeding asymptotically towards a final value of the particle size, the determination being carried out in such a way that the addition of grain refiner is selected as a value on the second branch of the curve; that the metal alloys are then cooled down to any desired temperature below the solidus line and are then heated to a holding temperature between the solidus and the liquidus line and in the process are held for a holding time of less than 15 minutes. <IMAGE>
DE59306300T 1992-01-30 1993-01-29 Process for the production of molded parts from metal alloys Expired - Fee Related DE59306300D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4202562 1992-01-30

Publications (1)

Publication Number Publication Date
DE59306300D1 true DE59306300D1 (en) 1997-06-05

Family

ID=6450567

Family Applications (1)

Application Number Title Priority Date Filing Date
DE59306300T Expired - Fee Related DE59306300D1 (en) 1992-01-30 1993-01-29 Process for the production of molded parts from metal alloys

Country Status (3)

Country Link
EP (1) EP0554808B1 (en)
AT (1) ATE152378T1 (en)
DE (1) DE59306300D1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1278069B1 (en) * 1994-05-17 1997-11-17 Honda Motor Co Ltd ALLOY MATERIAL FOR TISSOFUSION, PROCEDURE FOR THE PREPARATION OF SEMI-CAST ALLOY MATERIAL FOR TISSOFUSION AND PROCEDURE FOR
DE4420533A1 (en) * 1994-06-14 1995-12-21 Salzburger Aluminium Ag Process for the production of castings from aluminum alloys
NO950843L (en) * 1994-09-09 1996-03-11 Ube Industries Method of Treating Metal in Semi-Solid State and Method of Casting Metal Bars for Use in This Method
US5571346A (en) * 1995-04-14 1996-11-05 Northwest Aluminum Company Casting, thermal transforming and semi-solid forming aluminum alloys
US5911843A (en) * 1995-04-14 1999-06-15 Northwest Aluminum Company Casting, thermal transforming and semi-solid forming aluminum alloys
US5968292A (en) * 1995-04-14 1999-10-19 Northwest Aluminum Casting thermal transforming and semi-solid forming aluminum alloys
IT1278230B1 (en) * 1995-05-31 1997-11-17 Reynolds Wheels Spa METHOD FOR BRINGING ALUMINUM ALLOY BLOCKS SUCH AS INGOTS, BILLETS AND SIMILAR TO THE SEMI-SOLID-SEMILIQUID STATE SUITABLE FOR ALLOWING
FR2788788B1 (en) * 1999-01-21 2002-02-15 Pechiney Aluminium HYPEREUTECTIC ALUMINUM-SILICON ALLOY PRODUCT FOR SHAPING IN SEMI-SOLID CONDITION
WO2001009401A1 (en) * 1999-07-28 2001-02-08 Sm Schweizerische Munitionsunternehmung Ag Method for producing a metal-alloy material
US6901991B2 (en) 2002-01-31 2005-06-07 Tht Presses Inc. Semi-solid molding apparatus and method
US20050056394A1 (en) 2002-01-31 2005-03-17 Tht Presses Inc. Semi-solid molding method and apparatus
US20030141033A1 (en) * 2002-01-31 2003-07-31 Tht Presses Inc. Semi-solid molding method
FR2839779B1 (en) 2002-05-16 2004-07-30 Cit Alcatel METHOD FOR PREVENTING THE EFFECTS OF SOLAR PROTONS PROVIDING RECONFIGURATION OF A STAR SENSOR AND ATTITUDE MONITORING SYSTEM IMPLEMENTING THE METHOD
AU2003303575A1 (en) * 2003-01-03 2004-07-29 Singapore Institute Of Manufacturing Technology Transformable and recyclable semi-solid metal processing
US7025113B2 (en) 2003-05-01 2006-04-11 Spx Corporation Semi-solid casting process of aluminum alloys with a grain refiner
US6880613B2 (en) * 2003-05-01 2005-04-19 Spx Corporation Semi-solid metal casting process of hypoeutectic aluminum alloys
DE102005022506B4 (en) * 2005-05-11 2007-04-12 Universität Stuttgart Method for forging a titanium alloy component

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4415374A (en) * 1982-03-30 1983-11-15 International Telephone And Telegraph Corporation Fine grained metal composition
GB2156855B (en) * 1984-04-06 1988-04-07 Nat Res Dev Alloying process

Also Published As

Publication number Publication date
ATE152378T1 (en) 1997-05-15
EP0554808B1 (en) 1997-05-02
EP0554808A1 (en) 1993-08-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee