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WO1996024453A1 - Formation d'une matrice metallique composite, avec une charge particulaire - Google Patents

Formation d'une matrice metallique composite, avec une charge particulaire Download PDF

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Publication number
WO1996024453A1
WO1996024453A1 PCT/AU1996/000060 AU9600060W WO9624453A1 WO 1996024453 A1 WO1996024453 A1 WO 1996024453A1 AU 9600060 W AU9600060 W AU 9600060W WO 9624453 A1 WO9624453 A1 WO 9624453A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal
mould
die
particuiate
cartridge
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/AU1996/000060
Other languages
English (en)
Inventor
Graham Rex Withers
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AU46142/96A priority Critical patent/AU4614296A/en
Publication of WO1996024453A1 publication Critical patent/WO1996024453A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/14—Casting in, on, or around objects which form part of the product the objects being filamentary or particulate in form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/06—Metallic powder characterised by the shape of the particles
    • B22F1/065—Spherical particles
    • B22F1/0655—Hollow particles
    • 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
    • C22C1/10—Alloys containing non-metals
    • C22C1/1036—Alloys containing non-metals starting from a melt

Definitions

  • the present invention relates primarily to a novel method of forming and apparatus for forming metal matrix products, however, the method and apparatus may also be useful in moulding products made from any material in which it is desired to disperse a particuiate or fibre filler material. This invention will be particularly useful in producing products disclosed in Patent Nos. 83399/87 (GENI) and 61450/90 (GENII).
  • a still further difficulty is that it is difficult to mix particuiate material that might be reactive to some extent with the liquid matrix material as extensive mixing times provide for the possibility of deleterious reactions between the materials.
  • the objective therefore is to provide a relatively low cost method and apparatus for forming products by moulding techniques comprised of a particuiate material dispersed in a matrix material with the particuiate material having satisfactory dispersion levels for the product being formed.
  • the present invention provides in a first aspect, a method of forming a composite product comprising heating a metal matrix material to its liquid state, introducing said liquid metal matrix material to a mould or die cavity while still in its liquid state, and introducing a volume of particuiate filler material into said liquid matrix material either at or immediately prior to an entry point of said liquid metal matrix material into said mould or die cavity.
  • this introduction point of the particuiate material occurs in the mould or die.
  • the present invention also proposes apparatus for forming a composite product comprising a mould or die including a mould or die cavity, means for receiving and introducing a molten metal matrix material into said mould or die cavity, and means for introducing a volume of particuiate material into said molten metal matrix material either at or immediately prior to said molten metal matrix material entering said mould or die cavity. It has been surprisingly found that introducing the particuiate material as aforesaid provides adequate distribution of the particuiate material in the product being formed.
  • a method of forming a composite product comprising the steps of providing: a mould or die with a mould or die cavity; locating a volume of particuiate material in a path for the flow of liquid matrix material into said die or mould cavity, said particuiate material being located in an outer sheath capable of being at least partially ruptured by liquid matrix material flowing into said die or mould cavity; and heating a matrix material to its liquid state and arranging same to flow past said volume of particuiate material whereby said paniculate material is carried with and dispersed through said liquid matrix material within said die or mould cavity.
  • the present invention also provides apparatus comprising a mould or die having a mould or die cavity, a liquid flow path for liquid matrix material leading into said mould or die cavity, and means located in said liquid flow path either at or immediately before an entry point into the mould or die cavity to support a volume of particuiate located in an outer sheath, said outer sheath being adapted for rupture upon said liquid matrix material passing along said liquid flow path.
  • the sheath material may be a metal foil.
  • the metal foil of sheath material might appropriately be either or both an aluminium (or its alloys) or magnesium (or its alloys) foil.
  • the present invention also provides a cartridge for location in an inlet flow passage of a die or mould, said cartridge having an outer wall of metal configured to be positioned in said inlet flow passage and retaining particuiate filler material within an inner space thereof.
  • the present invention also provides a method of die casting metals with a dispersion of particuiate filler material, said metal injected as molten metal into a die cavity of a die, the injection of the molten metal into said die cavity being through an inlet runner leading into the die cavity, said method comprising: inserting into said runner a cartridge containing a predetermined volume of particuiate filler material to be dispersed in a metal casting, said cartridge being sealed by at least one section formed by a metal foil layer so as to retain the filler material within the cartridge; injecting molten metal into the cavity through said cartridge, thereby rupturing the foil layer carrying the filler material into the cavity while intermixing the paniculate filler material with said molten metal; and allowing said molten metal to solidify in the die cavity before removing same.
  • particuiate material is referred to. It should be understood that this includes but is not limited to, fly ash or other ceramic particles (either spherical or not) and fibres including steel or other metal fibres and glass fibres. Obviously the material of the particuiate material will depend upon the nature of the matrix material being used therewith and the product being formed. Further, when the matrix material is a metal, the sheathing material is either made from the same metal or at least a metal compatible with the matrix metal as the sheathing material is at least in part incorporated in the end product formed.
  • Figure 1 is a partial cross-sectional view of the die chamber of a hot chamber die casting device according to the present invention
  • Figure 2 is a partial cross-sectional view similar to Figure 1 showing an alternative preferred embodiment
  • Figure 3 is a partial cross-sectional view similar to Figure 1 showing a still further preferred embodiment.
  • Figures 4, 5 and 6 are respective cross-sectional views taken on line I-I of Figures 1 to 3 showing different possible arrangements within the inlet molten metal delivery path of the hot chamber die casting device.
  • the annexed drawings illustrate various features of a hot chamber casting device 10. Molten metal can be delivered by any known method or apparatus to the inlet path 11 of the casting device 10 which is formed in a fixed die part 12. A die cavity 13 is formed between the fixed die part 12 and a movable die part 14 with the inlet path 11 leading into the die cavity 13. In the drawings, the die cavity 13 is shaped so as to enable a power steering pump pulley for a motor vehicle to be die cast but it will be apparent that many other shapes can be die cast according to the principles of the present invention.
  • the fixed part die part 12 includes a sprue bushing 15 through which the inlet passage or runner 11 is formed.
  • a cartridge 16 Prior to a casting operation, a cartridge 16 is positioned within the inlet runner 11 as illustrated in Figures 1 , 2 and 3 with the structure of the cartridge 16 being as described hereinafter. Conveniently, the cartridge 16 may be mounted at least partially on a sprue post 17 or any other means might be utilised to locate the cartridge 16 as desired in the inlet runner 11.
  • the cartridge 16 comprises an outer structural sheath 18 and a predetermined quantity of filler material particles 19 depending on the desired quantity of such material in the finished product.
  • the filler material particles are conveniently microspheres such as fly-ash but many other forms of filler material could also be utilised.
  • the cartridge 16 is first positioned as desired in the inlet runner 11 and the die parts 12 and 14 are closed and pressed against one another. Thereafter, molten metal (conveniently magnesium, aluminium or alloys of magnesium and aluminium) is introduced into the die cavity 13 under high pressure through the inlet runner 11. At least part of the sheath material 18 is ruptured and the filler material is carried into the die cavity 13 with the molten metal while being dispersed throughout the molten metal. The introduction of the molten metal into the die cavity 13 occurs very rapidly (often in less than a second) which enables the filler material particles to disperse well throughout the molten metal.
  • molten metal usually magnesium, aluminium or alloys of magnesium and aluminium
  • the cartridge 16 is located right at the introduction point to the mould cavity such that there is insufficient time for the filler material particles 19 to adversely react with the molten metal.
  • the sheath material 18 may be a metal foil such as aluminium foil, magnesium foil or a combination of both as illustrated in Figure 1 with the whole outer wall of the cartridge being formed by the foil.
  • the sheath may be preformed as a thin metal conical container 20 with the metal being either aluminium or magnesium or alloys of these metals. The container 20 is then capped off at either end 21 or 22 by a thin metal foil (either aluminium, magnesium or alloys of same).
  • the sheath 18 is preferably filled with the desired paniculate material prior to being positioned in the inlet runner 11.
  • the cartridge 16 thus formed by either of the above described methods may contact the wall of the inlet runner 11 or may have a clearance fit within the runner as shown in the drawings.
  • the configuration of the cartridge 16 of particuiate material may vary depending on the nature of the product being produced and the desired dispersion of the particuiate material. In the case of producing a pulley wheel as illustrated, it may be desired to achieve a reasonably high level of filler material 19 (fly-ash or microspheres) in the region of the outer peripheral pulley grooves.
  • the package of paniculate material may have a relatively small distance or no distance between it and the wall 23 of the inlet runner 11 so that a reasonably high proportion of the filler material 19 is pushed in front of the molten metal towards the extremity of the mould cavity. If this is not a requirement and a more even distribution of paniculate material is required, then a greater distance between the sheath and the sprue wall might be provided. Further, in some situations, it may be desirable to give the sheath a non-circular cross-section (eg. polygonal or wave as shown, for example in Fig. 6) so that the space between the wall 23 of the inlet runner 11 and the sheath 16 is greater at different circumferential locations.
  • a non-circular cross-section eg. polygonal or wave as shown, for example in Fig. 6
  • the thickness of the sheath material 19 eg. thicker near the entry to the die or mould cavity and thinner at its free end to assist with rupture of the sheath 18 and achieving a desired dispersion of the particuiate material 19.
  • the foil cartridges or pockets containing the fly-ash or other particuiate filler material could be sequentially mounted on a web of some other material to deliver the cartridges to the die casting machine.
  • a single or possibly multiple cartridges or pockets could be separated from the carrier as the die closes so as to leave the or a selected number of such cartridges or pockets in the inlet runner 11 prior to injection of molten metal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

L'invention concerne un appareil (10) et un procédé pour mouler ou couler une matrice métallique composite avec une dispersion d'une charge particulaire. Une cartouche (16) est insérée dans le passage d'entrée (11) du moule ou de la cavité (13), la cartouche (16) ayant au moins une section externe (18) qui peut être rompue par le flux de métal en fusion et qui contient une charge particulaire (19). Le dispositif est réalisé de manière à ce que, quand le métal fondu est injecté par le passage d'entrée (11), il rompt la cartouche (16) et entraîne la charge particulaire (19) dans le moule ou la cavité (13), tout en dispersant en même temps la charge (19) dans tout le métal en fusion.
PCT/AU1996/000060 1995-02-10 1996-02-09 Formation d'une matrice metallique composite, avec une charge particulaire Ceased WO1996024453A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU46142/96A AU4614296A (en) 1995-02-10 1996-02-09 Forming metal matrix composite with particulate filler

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPN1071 1995-02-10
AUPN1071A AUPN107195A0 (en) 1995-02-10 1995-02-10 Metal matrix forming method and apparatus

Publications (1)

Publication Number Publication Date
WO1996024453A1 true WO1996024453A1 (fr) 1996-08-15

Family

ID=3785431

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1996/000060 Ceased WO1996024453A1 (fr) 1995-02-10 1996-02-09 Formation d'une matrice metallique composite, avec une charge particulaire

Country Status (2)

Country Link
AU (1) AUPN107195A0 (fr)
WO (1) WO1996024453A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6913922B1 (en) 1999-05-18 2005-07-05 Crucell Holland B.V. Serotype of adenovirus and uses thereof
US6974695B2 (en) 2000-11-15 2005-12-13 Crucell Holland B.V. Complementing cell lines
US7052881B2 (en) 1995-06-15 2006-05-30 Crucell Holland B.V. Packaging systems for human recombinant adenovirus to be used in gene therapy
US7235233B2 (en) 2000-09-26 2007-06-26 Crucell Holland B.V. Serotype 5 adenoviral vectors with chimeric fibers for gene delivery in skeletal muscle cells or myoblasts
US7468181B2 (en) 2002-04-25 2008-12-23 Crucell Holland B.V. Means and methods for the production of adenovirus vectors
US7749493B2 (en) 1998-07-08 2010-07-06 Crucell Holland B.V. Chimeric adenoviruses
CN111570764A (zh) * 2019-02-19 2020-08-25 中国科学院理化技术研究所 金属基复合材料成型系统及成型方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088475A (en) * 1976-11-04 1978-05-09 Olin Corporation Addition of reactive elements in powder wire form to copper base alloys
SU1085669A1 (ru) * 1981-04-27 1984-04-15 Мурманское высшее инженерное морское училище им.Ленинского комсомола Способ получени биметаллических сталь-чугунных отливок
JPS61133336A (ja) * 1984-12-04 1986-06-20 Nippon Light Metal Co Ltd 強化材と金属との複合体製造方法
US4888054A (en) * 1987-02-24 1989-12-19 Pond Sr Robert B Metal composites with fly ash incorporated therein and a process for producing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088475A (en) * 1976-11-04 1978-05-09 Olin Corporation Addition of reactive elements in powder wire form to copper base alloys
SU1085669A1 (ru) * 1981-04-27 1984-04-15 Мурманское высшее инженерное морское училище им.Ленинского комсомола Способ получени биметаллических сталь-чугунных отливок
JPS61133336A (ja) * 1984-12-04 1986-06-20 Nippon Light Metal Co Ltd 強化材と金属との複合体製造方法
US4888054A (en) * 1987-02-24 1989-12-19 Pond Sr Robert B Metal composites with fly ash incorporated therein and a process for producing the same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DERWENT ABSTRACT, Accession No. 84-299805/48, Class P53; & SU,A,1 085 669, (MURMANSK NAVAL ENG), 15 April 1984. *
PATENT ABSTRACTS OF JAPAN, C-382, page 157; & JP,A,61 133 336, (NIPPON LIGHT METAL CO LTD), 20 June 1986. *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7052881B2 (en) 1995-06-15 2006-05-30 Crucell Holland B.V. Packaging systems for human recombinant adenovirus to be used in gene therapy
US7105346B2 (en) 1995-06-15 2006-09-12 Crucell Holland B.V. Packaging systems for human recombinant adenovirus to be used in gene therapy
US7749493B2 (en) 1998-07-08 2010-07-06 Crucell Holland B.V. Chimeric adenoviruses
US6913922B1 (en) 1999-05-18 2005-07-05 Crucell Holland B.V. Serotype of adenovirus and uses thereof
US7250293B2 (en) 1999-05-18 2007-07-31 Crucell Holland B.V. Complementing cell lines
US7235233B2 (en) 2000-09-26 2007-06-26 Crucell Holland B.V. Serotype 5 adenoviral vectors with chimeric fibers for gene delivery in skeletal muscle cells or myoblasts
US6974695B2 (en) 2000-11-15 2005-12-13 Crucell Holland B.V. Complementing cell lines
US7344883B2 (en) 2000-11-15 2008-03-18 Crucell Holland B.V. Complementing cell lines
US9228205B2 (en) 2000-11-15 2016-01-05 Crucell Holland B.V. Complementing cell lines
US7468181B2 (en) 2002-04-25 2008-12-23 Crucell Holland B.V. Means and methods for the production of adenovirus vectors
CN111570764A (zh) * 2019-02-19 2020-08-25 中国科学院理化技术研究所 金属基复合材料成型系统及成型方法

Also Published As

Publication number Publication date
AUPN107195A0 (en) 1995-03-09

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