GB1354822A - Process for hardening with combustion gases a casting mould or core - Google Patents

Process for hardening with combustion gases a casting mould or core

Info

Publication number
GB1354822A
GB1354822A GB211072A GB211072A GB1354822A GB 1354822 A GB1354822 A GB 1354822A GB 211072 A GB211072 A GB 211072A GB 211072 A GB211072 A GB 211072A GB 1354822 A GB1354822 A GB 1354822A
Authority
GB
United Kingdom
Prior art keywords
sand
dressing
sodium silicate
combustion gases
hardening
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
GB211072A
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.)
Ahlstrom Corp
Original Assignee
Ahlstrom Corp
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 Ahlstrom Corp filed Critical Ahlstrom Corp
Publication of GB1354822A publication Critical patent/GB1354822A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/12—Treating moulds or cores, e.g. drying, hardening
    • B22C9/123—Gas-hardening
    • 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
    • B22C9/03—Sand moulds or like moulds for shaped castings formed by vacuum-sealed moulding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)

Abstract

1354822 Foundry moulding processes A AHLSTROM OSAKEYHTIO 17 Jan 1972 [11 Feb 1971] 2110/72 Heading B3F Foundry sand moulds having at least a facing of sodium silicate-containing sand are hardened by providing sodium silicate-containing sand with a dressing which is combustible to form CO 2 , moulding the sand and kindling the dressing. The gases formed by combustion are then passed through the formed mould to harden it. As shown, a flask 2 contains backing sand 3 and sodium silicate-containing facing sand 1 dressed with an alcohol-containing dressing. Vents 10 are provided in the sand and the flask 2 rests by insulation 5 on an air-tight cover 4 connected to a vacuum pump 7. The alcohol is kindled and hot-air and combustion gases containing CO 2 sucked through the mould by the vacuum pump 7 as shown by the arrows.
GB211072A 1971-02-11 1972-01-17 Process for hardening with combustion gases a casting mould or core Expired GB1354822A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI39671A FI46335C (en) 1971-02-11 1971-02-11 Process for curing molds or cores by means of combustion gases.

Publications (1)

Publication Number Publication Date
GB1354822A true GB1354822A (en) 1974-06-05

Family

ID=8504050

Family Applications (1)

Application Number Title Priority Date Filing Date
GB211072A Expired GB1354822A (en) 1971-02-11 1972-01-17 Process for hardening with combustion gases a casting mould or core

Country Status (2)

Country Link
FI (1) FI46335C (en)
GB (1) GB1354822A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369036A2 (en) * 1974-07-15 1978-05-26 Baker Perkins Holdings Ltd IMPROVEMENTS IN THE MANUFACTURING PROCESSES OF MOLDS AND FOUNDRY CORES
FR2499433A1 (en) * 1980-11-27 1982-08-13 Sintokogio Ltd PROCESS FOR PRODUCING A MOLD CORE
WO2006125612A1 (en) * 2005-05-25 2006-11-30 Ashland-Südchemie-Kernfest GmbH Method for drying water-based coatings
CN100453205C (en) * 2005-07-04 2009-01-21 上海市机械制造工艺研究所有限公司 Method for hardening sand mold by CO2 blowing
WO2013159762A1 (en) * 2012-04-26 2013-10-31 Ask Chemicals Gmbh Method for producing moulds and cores for metal casting and moulds and cores produced according to this method
RU2650219C2 (en) * 2012-10-19 2018-04-11 Аск Кемикалз Гмбх Molding materials mixtures based on inorganic binders and a method of producing press molds and cores for metal casting
RU2659562C2 (en) * 2012-12-22 2018-07-02 Аск Кемикалз Гмбх Molding material mixtures containing metal oxides of aluminum and zirconium in particulate form

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369036A2 (en) * 1974-07-15 1978-05-26 Baker Perkins Holdings Ltd IMPROVEMENTS IN THE MANUFACTURING PROCESSES OF MOLDS AND FOUNDRY CORES
FR2499433A1 (en) * 1980-11-27 1982-08-13 Sintokogio Ltd PROCESS FOR PRODUCING A MOLD CORE
WO2006125612A1 (en) * 2005-05-25 2006-11-30 Ashland-Südchemie-Kernfest GmbH Method for drying water-based coatings
CN100453205C (en) * 2005-07-04 2009-01-21 上海市机械制造工艺研究所有限公司 Method for hardening sand mold by CO2 blowing
WO2013159762A1 (en) * 2012-04-26 2013-10-31 Ask Chemicals Gmbh Method for producing moulds and cores for metal casting and moulds and cores produced according to this method
RU2650219C2 (en) * 2012-10-19 2018-04-11 Аск Кемикалз Гмбх Molding materials mixtures based on inorganic binders and a method of producing press molds and cores for metal casting
RU2659562C2 (en) * 2012-12-22 2018-07-02 Аск Кемикалз Гмбх Molding material mixtures containing metal oxides of aluminum and zirconium in particulate form

Also Published As

Publication number Publication date
FI46335C (en) 1973-03-12
FI46335B (en) 1972-11-30

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees