GB808217A - Mould for producing castings, especially from ceramic raw stock - Google Patents

Mould for producing castings, especially from ceramic raw stock

Info

Publication number
GB808217A
GB808217A GB9645/56A GB964556A GB808217A GB 808217 A GB808217 A GB 808217A GB 9645/56 A GB9645/56 A GB 9645/56A GB 964556 A GB964556 A GB 964556A GB 808217 A GB808217 A GB 808217A
Authority
GB
United Kingdom
Prior art keywords
layer
casting
gas
mould
gypsum
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
GB9645/56A
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
Priority claimed from DES43243A external-priority patent/DE962595C/en
Application filed by Individual filed Critical Individual
Publication of GB808217A publication Critical patent/GB808217A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
    • B28B1/265—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor pressure being applied on the slip in the filled mould or on the moulded article in the mould, e.g. pneumatically, by compressing slip in a closed mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
    • B28B1/261—Moulds therefor
    • B28B1/262—Mould materials; Manufacture of moulds or parts thereof

Abstract

808,217. Casting-moulds. SIEPRATH, H. March 28, 1956 [March 29, 1955], No. 9645/56. Class 87(2). A mould for casting ceramic articles comprises at least three layers, an innermost layer 1 of liquid-absorbent material, e.g. gypsum, a layer 2 of material permeable to gas, e.g. grains stuck together and at least one outer layer 3 of material impermeable to gas, there being at least one aperture 6 for the passage of a drying gas or for the application of a vacuum. The layer 1 is preferably thin and supported by the permeable layer or body 2, in which case it may be of hard moulding gypsum. The material 2 may be sifted quartz gravel or glass beads and the binder may be liquid synthetic resin or rubber solutions, gypsum paste or grout ; a porous rigid body being formed when the binder has set. The outer layer 3 may consist of fine sand with a binder such as gypsum or it may be of sheet metal. Its outward shape may resemble that usual for casting moulds, and it may be covered with bandage and/or a coating of varnish 4. The casting 7 is formed by building up the desired wall thickness in the mould and pouring out superfluous slip. The water absorbed from the slip by the layer 1 is removed by passing drying gas from a conduit 5 through the material 2 by way of the conduit 6, escaping from the material at 10. A cover 9 may be placed over the mould opening with an inlet 8 through which gas may be introduced under pressure to cause the casting 7 to bear against the layer 1. Alternatively the circulation of drying gas through the body 2 may be by suction.
GB9645/56A 1955-03-29 1956-03-28 Mould for producing castings, especially from ceramic raw stock Expired GB808217A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1144917X 1955-03-29
DE808217X 1955-03-29
DES43243A DE962595C (en) 1955-03-29 1955-03-30 Casting mold for molded bodies, in particular made of ceramic raw material

Publications (1)

Publication Number Publication Date
GB808217A true GB808217A (en) 1959-01-28

Family

ID=30118688

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9645/56A Expired GB808217A (en) 1955-03-29 1956-03-28 Mould for producing castings, especially from ceramic raw stock

Country Status (1)

Country Link
GB (1) GB808217A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0234360A1 (en) * 1986-02-20 1987-09-02 Keramik Holding AG Laufen Casting mould for making ceramic articles
DE3724610A1 (en) * 1986-07-26 1988-02-04 Toto Ltd POROUSE MOLD FOR THE DIE CASTING OF A SLURED MOLDING MATERIAL AND METHOD FOR PRODUCING THE MOLD
EP0300983A1 (en) * 1987-07-24 1989-01-25 Ugo Giannelli Apparatus for the pressing and removal of press-made cement products
US4884959A (en) * 1986-07-26 1989-12-05 Toto Ltd. Mold used in pressure casting ceramic articles
US4983341A (en) * 1987-12-28 1991-01-08 United Technologies Corporation Method of using breather materials for high pressure molding
US4983345A (en) * 1987-12-28 1991-01-08 United Technologies Corporation Method of high temperature molding using a thermal barrier
EP0499420A1 (en) * 1991-02-12 1992-08-19 British Ceramic Research Limited Mould forming
US5306448A (en) * 1987-12-28 1994-04-26 United Technologies Corporation Method for resin transfer molding
FR2743282A1 (en) * 1996-01-10 1997-07-11 Brault Benoit Weighted flower vase for cemetery or garden or balcony
GB2409423A (en) * 2003-12-23 2005-06-29 Doncasters Ltd Metal casting apparatus with low permeability gypsum mould
ES2711805A1 (en) * 2017-11-02 2019-05-07 Amos Benacchio PERMEABLE RECIPIENT TO GASES AND WATERPROOF TO LIQUIDS AND ITS PROCESS OF MANUFACTURE (Machine-translation by Google Translate, not legally binding)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0234360A1 (en) * 1986-02-20 1987-09-02 Keramik Holding AG Laufen Casting mould for making ceramic articles
US5069609A (en) * 1986-07-26 1991-12-03 Toto Ltd. Mold used in pressure casting ceramic articles
US4884959A (en) * 1986-07-26 1989-12-05 Toto Ltd. Mold used in pressure casting ceramic articles
DE3724610A1 (en) * 1986-07-26 1988-02-04 Toto Ltd POROUSE MOLD FOR THE DIE CASTING OF A SLURED MOLDING MATERIAL AND METHOD FOR PRODUCING THE MOLD
EP0300983A1 (en) * 1987-07-24 1989-01-25 Ugo Giannelli Apparatus for the pressing and removal of press-made cement products
US4983341A (en) * 1987-12-28 1991-01-08 United Technologies Corporation Method of using breather materials for high pressure molding
US4983345A (en) * 1987-12-28 1991-01-08 United Technologies Corporation Method of high temperature molding using a thermal barrier
US5306448A (en) * 1987-12-28 1994-04-26 United Technologies Corporation Method for resin transfer molding
EP0499420A1 (en) * 1991-02-12 1992-08-19 British Ceramic Research Limited Mould forming
FR2743282A1 (en) * 1996-01-10 1997-07-11 Brault Benoit Weighted flower vase for cemetery or garden or balcony
GB2409423A (en) * 2003-12-23 2005-06-29 Doncasters Ltd Metal casting apparatus with low permeability gypsum mould
GB2409423B (en) * 2003-12-23 2007-04-11 Doncasters Ltd Metal casting apparatus and method
ES2711805A1 (en) * 2017-11-02 2019-05-07 Amos Benacchio PERMEABLE RECIPIENT TO GASES AND WATERPROOF TO LIQUIDS AND ITS PROCESS OF MANUFACTURE (Machine-translation by Google Translate, not legally binding)

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