GB809954A - Improvements relating to precision casting by lost wax process - Google Patents

Improvements relating to precision casting by lost wax process

Info

Publication number
GB809954A
GB809954A GB2460554A GB2460554A GB809954A GB 809954 A GB809954 A GB 809954A GB 2460554 A GB2460554 A GB 2460554A GB 2460554 A GB2460554 A GB 2460554A GB 809954 A GB809954 A GB 809954A
Authority
GB
United Kingdom
Prior art keywords
precision casting
refractory material
improvements relating
lost wax
silica
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
Application number
GB2460554A
Inventor
John Stratton Turnbull
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co Ltd
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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Publication of GB809954A publication Critical patent/GB809954A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/165—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents in the manufacture of multilayered shell moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/04—Use of lost patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/04—Use of lost patterns
    • B22C9/043—Removing the consumable pattern

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)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

In the process of the parent Specification, for making a shell mould in precision casting, a wax pattern is provided with a multiplicity of coatings of a refractory material by dipping, to form a self-supporting vapour-permeable shell, and the wax pattern is dissolved out by a hot vapour of a solvent for the wax. In the present invention the initial coating only is formed from refractory material suspended in a silica sol. The silica content of the sol may be 15 to 30 per cent. by weight. The refractory material may be zirconium silicate or oxide, alumina or silica.
GB2460554A 1954-06-08 1954-08-24 Improvements relating to precision casting by lost wax process Expired GB809954A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1683254A GB781376A (en) 1954-06-08 1954-06-08 Improvements relating to precision casting by the lost wax process

Publications (1)

Publication Number Publication Date
GB809954A true GB809954A (en) 1959-03-04

Family

ID=10084485

Family Applications (3)

Application Number Title Priority Date Filing Date
GB2679551A Expired GB722816A (en) 1954-06-08 1951-11-15 Improvements relating to precision casting by the lost-wax process
GB1683254A Expired GB781376A (en) 1954-06-08 1954-06-08 Improvements relating to precision casting by the lost wax process
GB2460554A Expired GB809954A (en) 1954-06-08 1954-08-24 Improvements relating to precision casting by lost wax process

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB2679551A Expired GB722816A (en) 1954-06-08 1951-11-15 Improvements relating to precision casting by the lost-wax process
GB1683254A Expired GB781376A (en) 1954-06-08 1954-06-08 Improvements relating to precision casting by the lost wax process

Country Status (1)

Country Link
GB (3) GB722816A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992016322A2 (en) * 1991-03-13 1992-10-01 E.I. Du Pont De Nemours And Company Stable mixtures of colloidal silica and a film-forming polymer
US5927379A (en) * 1996-09-26 1999-07-27 Pcc Structurals, Inc. Infiltration method for producing shells useful for investment casting

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2829060A (en) * 1954-10-25 1958-04-01 Rolls Royce Mould and method of making the same
US3048905A (en) * 1959-06-11 1962-08-14 Howe Sound Co Making refractory shell molds
CN102728780B (en) * 2012-06-08 2014-01-15 繁昌县琦祥铸造厂 Water glass molding sand and producing method thereof
CN102728781B (en) * 2012-06-08 2014-01-15 繁昌县琦祥铸造厂 Molding sand using cement as binder and producing method thereof
US10940531B1 (en) * 2019-10-31 2021-03-09 The Boeing Company Methods and systems for improving a surface finish of an investment casting
CN113695520B (en) * 2021-08-28 2022-07-26 宁波开发区安德鲁精铸有限公司 Production process of outlet pump body
CN115090835B (en) * 2022-06-22 2023-12-29 繁峙县志高矿山机械有限责任公司 Precise casting process of hardware castings

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992016322A2 (en) * 1991-03-13 1992-10-01 E.I. Du Pont De Nemours And Company Stable mixtures of colloidal silica and a film-forming polymer
WO1992016322A3 (en) * 1991-03-13 1992-10-29 Du Pont Stable mixtures of colloidal silica and a film-forming polymer
US5927379A (en) * 1996-09-26 1999-07-27 Pcc Structurals, Inc. Infiltration method for producing shells useful for investment casting

Also Published As

Publication number Publication date
GB781376A (en) 1957-08-21
GB722816A (en) 1955-02-02

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