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WO2000076692A3 - Casting of precious metals - Google Patents

Casting of precious metals Download PDF

Info

Publication number
WO2000076692A3
WO2000076692A3 PCT/ZA2000/000109 ZA0000109W WO0076692A3 WO 2000076692 A3 WO2000076692 A3 WO 2000076692A3 ZA 0000109 W ZA0000109 W ZA 0000109W WO 0076692 A3 WO0076692 A3 WO 0076692A3
Authority
WO
WIPO (PCT)
Prior art keywords
making
casting
mould
pattern
precious metals
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/ZA2000/000109
Other languages
French (fr)
Other versions
WO2000076692A2 (en
Inventor
Peter Davies
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.)
BOLAM DAVID CHARLES
BOLAM DEBORAH SHIELA
LEWIS RICHARD RAYMOND
Original Assignee
BOLAM DAVID CHARLES
BOLAM DEBORAH SHIELA
LEWIS RICHARD RAYMOND
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
Priority claimed from ZA9903939A external-priority patent/ZA993939B/en
Application filed by BOLAM DAVID CHARLES, BOLAM DEBORAH SHIELA, LEWIS RICHARD RAYMOND filed Critical BOLAM DAVID CHARLES
Priority to AU61214/00A priority Critical patent/AU6121400A/en
Publication of WO2000076692A2 publication Critical patent/WO2000076692A2/en
Publication of WO2000076692A3 publication Critical patent/WO2000076692A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/005—Adjustable, sectional, expandable or flexible patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B22C9/061—Materials which make up the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D25/00—Special casting characterised by the nature of the product

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Adornments (AREA)

Abstract

A method of making a mould (7a, 7b) for casting articles particularly but not exclusively of precious metals includes the step of making a pattern (1) for the article using known techniques, making a master mould (2a, 2b) from the pattern, making a master pattern (4a, 4b) from a master mould, and making a production mould (7a, 7b) from the master pattern. The invention extends to the making of the article in which the article is cast using the production mould with method of casting being preferably vacuum and/or spin casting.
PCT/ZA2000/000109 1999-06-14 2000-06-14 Casting of precious metals Ceased WO2000076692A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU61214/00A AU6121400A (en) 1999-06-14 2000-06-14 Casting of precious metals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA9903939A ZA993939B (en) 1998-06-16 1999-06-14 Biodegradable expanded starch products and the method of preparation.
ZA99/3939 1999-06-14

Publications (2)

Publication Number Publication Date
WO2000076692A2 WO2000076692A2 (en) 2000-12-21
WO2000076692A3 true WO2000076692A3 (en) 2001-02-22

Family

ID=25587774

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2000/000109 Ceased WO2000076692A2 (en) 1999-06-14 2000-06-14 Casting of precious metals

Country Status (2)

Country Link
AU (1) AU6121400A (en)
WO (1) WO2000076692A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102773408B (en) * 2012-06-18 2014-07-23 杭州先临快速成型技术有限公司 Method for rapidly manufacturing low-temperature alloy pouring mould by high-temperature resistant silicon rubber

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109047656B (en) * 2018-09-26 2020-09-08 上海艺极模具有限公司 Manufacturing method of main mold of foaming mold and foaming mold

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB175014A (en) * 1920-11-02 1922-02-02 Theopheiles Denis Lucier An improved process of making dies
US1920699A (en) * 1932-08-20 1933-08-01 Roy T Hurley Metal die
US2979790A (en) * 1957-08-09 1961-04-18 Shaw Process Dev Corp Molds
WO1998015372A1 (en) * 1996-10-07 1998-04-16 Hek Gmbh Method and device for making moulds and tools

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB175014A (en) * 1920-11-02 1922-02-02 Theopheiles Denis Lucier An improved process of making dies
US1920699A (en) * 1932-08-20 1933-08-01 Roy T Hurley Metal die
US2979790A (en) * 1957-08-09 1961-04-18 Shaw Process Dev Corp Molds
WO1998015372A1 (en) * 1996-10-07 1998-04-16 Hek Gmbh Method and device for making moulds and tools

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102773408B (en) * 2012-06-18 2014-07-23 杭州先临快速成型技术有限公司 Method for rapidly manufacturing low-temperature alloy pouring mould by high-temperature resistant silicon rubber

Also Published As

Publication number Publication date
WO2000076692A2 (en) 2000-12-21
AU6121400A (en) 2001-01-02

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