GB2011812A - Calcium Carbonate Based Casting Cores - Google Patents

Calcium Carbonate Based Casting Cores

Info

Publication number
GB2011812A
GB2011812A GB7829653A GB7829653A GB2011812A GB 2011812 A GB2011812 A GB 2011812A GB 7829653 A GB7829653 A GB 7829653A GB 7829653 A GB7829653 A GB 7829653A GB 2011812 A GB2011812 A GB 2011812A
Authority
GB
United Kingdom
Prior art keywords
calcium carbonate
aluminum
core
casting
carbonate based
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.)
Withdrawn
Application number
GB7829653A
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.)
Certech Inc
Original Assignee
Certech Inc
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 Certech Inc filed Critical Certech Inc
Publication of GB2011812A publication Critical patent/GB2011812A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • B22C9/105—Salt cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

Aluminum-containing castings having internal passages and apertures are formed by using molded, sintered, substantially inorganic shaped cores comprising at least 30% by weight calcium carbonate. Aluminum or aluminum alloy castings are formed by pouring molten metal into a mold having a calcium carbonate core disposed therein. The core is removed from the casting by contacting the casting with an aqueous solution of an inorganic acid, preferably nitric acid. Preferably the core comprises before moulding:- 65% CaCO3 4% montmorillonite clay 18.6% zircon 2% frit 1% stearic acid 9.4% paraffin wax. d
GB7829653A 1978-01-09 1978-07-12 Calcium Carbonate Based Casting Cores Withdrawn GB2011812A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86781078A 1978-01-09 1978-01-09

Publications (1)

Publication Number Publication Date
GB2011812A true GB2011812A (en) 1979-07-18

Family

ID=25350497

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7829653A Withdrawn GB2011812A (en) 1978-01-09 1978-07-12 Calcium Carbonate Based Casting Cores

Country Status (4)

Country Link
JP (1) JPS5494432A (en)
DE (1) DE2833572A1 (en)
FR (1) FR2413947A1 (en)
GB (1) GB2011812A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115677327A (en) * 2022-10-26 2023-02-03 中国地质大学（武汉） Water-soluble calcium oxide-based supporting mold core for internal flow passage member and preparation method thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1165506A (en) * 1981-12-07 1984-04-17 Ervin I. Szabo Method of manufacturing a foundry mould mix containing binder components and mould binder components therefor
JPS606266A (en) * 1983-06-27 1985-01-12 Toyota Motor Corp Production of metal-base composite material
GB2154252B (en) * 1984-01-27 1987-02-11 Agency Ind Science Techn A method for the preparation of a spongy metallic body
JP5632136B2 (en) * 2009-03-27 2014-11-26 スズキ株式会社 Disintegrating mold and manufacturing method thereof
CN103949588B (en) * 2014-04-25 2016-04-20 西安航空动力股份有限公司 The manufacturing process of elongate curved irregularly-shaped hole in a kind of aluminium alloy castings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115677327A (en) * 2022-10-26 2023-02-03 中国地质大学（武汉） Water-soluble calcium oxide-based supporting mold core for internal flow passage member and preparation method thereof

Also Published As

Publication number Publication date
JPS5494432A (en) 1979-07-26
FR2413947A1 (en) 1979-08-03
DE2833572A1 (en) 1979-07-12

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)