GB1269202A - Improvements in the production of cores for use in the production of metal castings - Google Patents

Improvements in the production of cores for use in the production of metal castings

Info

Publication number
GB1269202A
GB1269202A GB01404/69A GB1140469A GB1269202A GB 1269202 A GB1269202 A GB 1269202A GB 01404/69 A GB01404/69 A GB 01404/69A GB 1140469 A GB1140469 A GB 1140469A GB 1269202 A GB1269202 A GB 1269202A
Authority
GB
United Kingdom
Prior art keywords
box
amine
moulding
vapour
distributer
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
GB01404/69A
Inventor
James Walker
Geoffrey William Westwood
Robert Irving
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.)
Fordath Ltd
Original Assignee
Fordath 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 Fordath Ltd filed Critical Fordath Ltd
Publication of GB1269202A publication Critical patent/GB1269202A/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
    • B22C1/162—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 use of a gaseous treating agent for hardening the binder
    • 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
    • B22C1/20—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 of organic agents
    • B22C1/22—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 of organic agents of resins or rosins
    • B22C1/2233—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 of organic agents of resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • B22C1/2273—Polyurethanes; Polyisocyanates
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/16—Catalysts
    • C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
    • C08G18/1891—Catalysts containing secondary or tertiary amines or salts thereof in vaporous state
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/54—Polycondensates of aldehydes
    • C08G18/542—Polycondensates of aldehydes with phenols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/58—Epoxy resins

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

1,269,202. Foundry moulding processes and apparatus. FORDATH Ltd. 8 May, 1969 [14 Feb., 1968; 29 Aug., 1968; 4 March, 1969] Nos. 7211/68, 41255/68 and 11404/69. Heading B3F. [Also in Division C3] A method for the production of foundry mouldings comprises introducing a mixture comprising an aggregate, a curable binder (dissolved in cyclohexane) and a polyisocyanate into a moulding box to form a " green " moulding and passing a tertiary amine into the box to effect curing. The amine is preferably triethylamine which is passed into the box as a vapour entrained in a gas stream. An apparatus for effecting curing of the moulding comprises an air line 10 containing a pressure regulator 14 connected to a vessel 17 which contains the amine, from which issues an outlet line 18 for the passage of a gas stream carrying the entrained amine vapour via a distributer arrangement 20 to the box 23. The distributer 20 includes four air-operated stop valves 26-29 which are arranged to be operated in pairs such that when two of these 26, 29 are open the stream of gas carrying the entrained amine vapour is passed through the box 23 in one direction and when the other two 27, 28 are open the stream is caused to pass through in the opposite direction. A by-pass line 31 extends between the pressure regulator 14 and distributer 20 to ensure that a minimum of free amine vapour is left within the box 23 after curing. The flow control valves of the apparatus are timer controlled.
GB01404/69A 1968-02-14 1968-02-14 Improvements in the production of cores for use in the production of metal castings Expired GB1269202A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB721168 1968-02-14

Publications (1)

Publication Number Publication Date
GB1269202A true GB1269202A (en) 1972-04-06

Family

ID=9828760

Family Applications (1)

Application Number Title Priority Date Filing Date
GB01404/69A Expired GB1269202A (en) 1968-02-14 1968-02-14 Improvements in the production of cores for use in the production of metal castings

Country Status (2)

Country Link
US (2) US3590902A (en)
GB (1) GB1269202A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2908198A1 (en) * 1978-03-14 1979-09-20 Sapic METHOD AND DEVICE FOR HARDENING A COMPOSITION OF A HARDENABLE RESIN AND A GRAINY FILLER
US4359082A (en) * 1979-07-28 1982-11-16 Michel Horst Werner Method and apparatus for hardening mold parts made of sand for making metal castings
GB2333986A (en) * 1998-02-10 1999-08-11 Dean Anthony Jones Casting core production

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1269202A (en) * 1968-02-14 1972-04-06 Fordath Ltd Improvements in the production of cores for use in the production of metal castings
US3676392A (en) * 1971-01-26 1972-07-11 Ashland Oil Inc Resin compositions
GB1348703A (en) * 1971-06-29 1974-03-20 Catalin Ltd Foundry binder compositions
US3925296A (en) * 1971-10-26 1975-12-09 Hooker Chemicals Plastics Corp Foundry aggregate binders
US3904559A (en) * 1971-10-26 1975-09-09 Hooker Chemicals Plastics Corp Foundry aggregate binders
DE2203411B1 (en) * 1972-01-25 1973-05-10 Kernfest Kg Ashland Suedchemie Cold-hardening foundry molding compound and hardening process for it
US4105725A (en) * 1972-11-21 1978-08-08 Liquid Carbonic Canada Ltd. Saturated liquid/vapor generating and dispensing
US3947420A (en) * 1973-03-22 1976-03-30 Automatisme Et Technique Method for producing foundry moulds and cores as well as products thereby obtained
US3888293A (en) * 1973-04-20 1975-06-10 American Motors Corp Method of making a foundry core
US3960816A (en) * 1973-07-11 1976-06-01 Commercial Solvents Corporation Process for the preparation of a no-bake sand core from an oxazoline condensate as binder
US4051886A (en) * 1973-08-27 1977-10-04 Liquid Carbonic Canada Ltd. Saturated liquid/vapor generating and dispensing
US3962162A (en) * 1974-02-19 1976-06-08 Minnesota Mining And Manufacturing Company Rigidly bonded green ceramics and processes
SE7407505L (en) * 1974-06-07 1975-12-08 Bofors Ab PROCEDURE FOR THE MANUFACTURE OF POLYURETHANE BONDED MATERIALS BODY BODIES.
DE2440375A1 (en) * 1974-08-23 1976-03-04 Bayer Ag METHOD FOR MANUFACTURING FOUNDRY CORES AND FORMS
US4076683A (en) * 1975-08-15 1978-02-28 Deutsche Texaco Aktiengesellschaft Molding compositions or masses suitable for manufacturing foundry molds and cores using the cold box method
US4132260A (en) * 1975-10-02 1979-01-02 Werner Luber Method and apparatus for hardening of foundry cores
US4051092A (en) * 1975-11-13 1977-09-27 International Minerals & Chemical Corporation Foundry core composition of aggregate and a binder therefor
GB1592166A (en) * 1976-10-21 1981-07-01 Stone Wallwork Ltd Production of a foundry core or mould
US4089363A (en) * 1976-12-27 1978-05-16 The Quaker Oats Company Method of manufacturing shell cores and molds
US4148777A (en) * 1977-05-09 1979-04-10 Delta Oil Products Corporation Binder for foundry process
GB1601938A (en) * 1977-07-21 1981-11-04 Fordath Ltd Foundry binders
US4179427A (en) * 1978-03-21 1979-12-18 Ashland Oil, Inc. Phenolic resin-polyisocyanate binders
US4370463A (en) * 1978-06-14 1983-01-25 Ashland Oil, Inc. Process for no-bake foundry application utilizing polyurethanes based on amine polyols
US4144215A (en) * 1978-06-21 1979-03-13 International Minerals & Chemical Corp. Binders for foundry mixes comprising polyisocyanate and styrene-allyl alcohol copolymer or alkylene oxide derivative thereof
US4273179A (en) * 1978-08-16 1981-06-16 Ashland Oil, Inc. Phenolic resin-polyisocyanate binder systems containing dibasic ester solvents
US4268425A (en) * 1979-05-14 1981-05-19 Ashland Oil, Inc. Phenolic resin-polyisocyanate binder systems containing a drying oil and use thereof
ES8102863A1 (en) * 1980-07-22 1981-02-16 Iglesias Hernandez Eduardo Process for binding aggregates using a polymerizable binder.
CA1161981A (en) * 1981-02-05 1984-02-07 Tom Mitsopoulos Phenolic resin binder composition for no-bake foundry moulds
US4349358A (en) * 1981-03-26 1982-09-14 Union Carbide Corporation Method of mixing a gas and a vaporizable liquid
US4448907A (en) * 1981-03-30 1984-05-15 Ashland Oil, Inc. Process for casting lightweight metals
JPS5846376B2 (en) * 1981-05-21 1983-10-15 トヨタ自動車株式会社 Manufacturing method of resin-coated sand grains for casting
US4518723A (en) * 1982-08-05 1985-05-21 Cl Industries, Inc. Curable epoxy resin compositions and use in preparing formed, shaped, filled bodies
US4540531A (en) * 1984-05-04 1985-09-10 Ashland Oil, Inc. Vapor generator and its use in generating vapors in a pressurized gas
DE3422742A1 (en) * 1984-06-19 1985-12-19 Michel, Horst Werner, Dipl.-Ing., 7707 Engen CONTROL FOR A DEVICE FOR CURING SAND CORES AND / OR MOLDS
US4632789A (en) * 1985-01-31 1986-12-30 Reid Philip L Gas humidification apparatus
US4759882A (en) * 1985-01-31 1988-07-26 Mocon Modern Controls, Inc. Gas humidification process
US4836269A (en) * 1986-07-14 1989-06-06 Roberts Corporation Forming apparatus having catalyst introduction simultaneous with sand injection
DE3802970A1 (en) * 1988-02-02 1989-08-10 Werner Klaus METHOD FOR PRODUCING MOLDED PARTS
DE3918857A1 (en) * 1988-10-05 1990-04-12 Ruetgerswerke Ag Binder for sand cores and moulds esp. for light metal casting
US4904419A (en) * 1989-03-14 1990-02-27 Reynolds Warren D Process and apparatus for vapor transfer of very high purity liquids at high dilution
US5286765A (en) * 1989-09-15 1994-02-15 Bayer Aktiengesellschaft Process for the preparation of foundry cores and molds
DE3930837A1 (en) * 1989-09-15 1991-03-28 Bayer Ag METHOD FOR PRODUCING FOUNDRY CORE AND MOLD
US5275648A (en) * 1989-10-20 1994-01-04 Giesserei Verfahrens Technik Inc. Heat curable organic resin foundry sand binder composition
US5135043A (en) * 1990-06-25 1992-08-04 Omco Usa, Inc. Apparatus and method for gas curing foundry cores and molds
US5971056A (en) * 1997-05-27 1999-10-26 Luger GmbH Device for hardening foundry cores and use thereof
US5971368A (en) * 1997-10-29 1999-10-26 Fsi International, Inc. System to increase the quantity of dissolved gas in a liquid and to maintain the increased quantity of dissolved gas in the liquid until utilized
US6235641B1 (en) 1998-10-30 2001-05-22 Fsi International Inc. Method and system to control the concentration of dissolved gas in a liquid
US6294117B1 (en) * 1998-12-17 2001-09-25 Bayer Corporation Mixed PMDI/solid novolac resin binders for the production of wood composite products
US6406551B1 (en) 1999-05-14 2002-06-18 Fsi International, Inc. Method for treating a substrate with heat sensitive agents
US6274506B1 (en) 1999-05-14 2001-08-14 Fsi International, Inc. Apparatus and method for dispensing processing fluid toward a substrate surface
US6505671B1 (en) * 2000-12-28 2003-01-14 Hayes Lemmerz International, Inc. Method for producing a sand core
US7578208B2 (en) * 2006-12-15 2009-08-25 Mocon, Inc. System and method for generating a gas sample of known and adjustable relative humidity
JP4418001B2 (en) * 2008-03-12 2010-02-17 三井造船株式会社 Raw material supply equipment
DE102010051817A1 (en) 2010-11-18 2012-05-24 Ashland-Südchemie-Kernfest GmbH Process for the preparation of coated proppants
CN104923713B (en) * 2015-04-30 2017-04-12 宁夏共享化工有限公司 Long-storage-life triethylamine method cold core box curing agent and production method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2999833A (en) * 1954-04-09 1961-09-12 Ford Motor Co Process for mixing a novalak resin and sand with an a-stage resin and sand to obtain a shell molding sand
FR1132248A (en) * 1955-09-22 1957-03-06 Huiles & Gommes Du Nord Binder for the manufacture of sand cores intended for the foundry
US2913787A (en) * 1956-09-26 1959-11-24 Dow Chemical Co Shell mold composition and method of making same
US3032426A (en) * 1960-02-29 1962-05-01 Int Harvester Co Mold composition cure accelerator
US3179990A (en) * 1961-10-26 1965-04-27 Freeman Chemical Corp Foundry composition with cross-linked polyester binder
US3266108A (en) * 1964-01-08 1966-08-16 Archer Daniels Midland Co Foundry core fabrication process
US3255500A (en) * 1965-02-01 1966-06-14 Archer Daniels Midland Co Foundry composition comprising sand, drying oil and polyisocyanate
GB1269202A (en) * 1968-02-14 1972-04-06 Fordath Ltd Improvements in the production of cores for use in the production of metal castings

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2908198A1 (en) * 1978-03-14 1979-09-20 Sapic METHOD AND DEVICE FOR HARDENING A COMPOSITION OF A HARDENABLE RESIN AND A GRAINY FILLER
US4359082A (en) * 1979-07-28 1982-11-16 Michel Horst Werner Method and apparatus for hardening mold parts made of sand for making metal castings
GB2333986A (en) * 1998-02-10 1999-08-11 Dean Anthony Jones Casting core production
GB2333986B (en) * 1998-02-10 2001-04-04 Dean Anthony Jones Improvements relating to heating and to casting core production

Also Published As

Publication number Publication date
US3590902A (en) 1971-07-06
US3428110A (en) 1969-02-18

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