GB1055737A - Improvements in casting processes - Google Patents

Improvements in casting processes

Info

Publication number
GB1055737A
GB1055737A GB12737/64A GB1273764A GB1055737A GB 1055737 A GB1055737 A GB 1055737A GB 12737/64 A GB12737/64 A GB 12737/64A GB 1273764 A GB1273764 A GB 1273764A GB 1055737 A GB1055737 A GB 1055737A
Authority
GB
United Kingdom
Prior art keywords
core
sulphate
sodium
piston
casting
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
GB12737/64A
Inventor
Arthur John Woolcott
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.)
Wellworthy Ltd
Original Assignee
Wellworthy 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 Wellworthy Ltd filed Critical Wellworthy Ltd
Priority to GB12737/64A priority Critical patent/GB1055737A/en
Priority to US441180A priority patent/US3459253A/en
Priority to CH402265A priority patent/CH436587A/en
Priority to NL6503649A priority patent/NL6503649A/xx
Priority to ES0310930A priority patent/ES310930A1/en
Publication of GB1055737A publication Critical patent/GB1055737A/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
    • B22C9/02—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
    • B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/02—Lost patterns
    • 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
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
    • B22D15/02—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor of cylinders, pistons, bearing shells or like thin-walled objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/001—Removing cores
    • B22D29/002—Removing cores by leaching, washing or dissolving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/001—One-piece pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

1,055,737. Cores. WELLWORTHY Ltd. March 24, 1965 [March 25, 1964], No. 12737/64. Heading B3F. A method of casting a metal piston having at least one cavity therein comprises the steps of forming a core of a water soluble salt to the shape of the cavity or cavities to be formed in the piston, casting the piston around this core and then dissolving the core. Examples of suitable salts include, sodium sulphate by itself, sodium carbonate with up to 10% potassium carbonate, sodium sulphate with up to 20% potassium sulphate and sodium sulphate with up to 15% sodium chloride. The soluble core may be reinforced by wire or glass fibre and may also be strengthened by the addition of a proportion of refractory or insoluble filler material such as alumina or calcium sulphate.
GB12737/64A 1964-03-25 1964-03-25 Improvements in casting processes Expired GB1055737A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB12737/64A GB1055737A (en) 1964-03-25 1964-03-25 Improvements in casting processes
US441180A US3459253A (en) 1964-03-25 1965-03-19 Method of casting pistons
CH402265A CH436587A (en) 1964-03-25 1965-03-23 Molding process for a hollow body
NL6503649A NL6503649A (en) 1964-03-25 1965-03-23
ES0310930A ES310930A1 (en) 1964-03-25 1965-03-24 Method of casting pistons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12737/64A GB1055737A (en) 1964-03-25 1964-03-25 Improvements in casting processes

Publications (1)

Publication Number Publication Date
GB1055737A true GB1055737A (en) 1967-01-18

Family

ID=10010174

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12737/64A Expired GB1055737A (en) 1964-03-25 1964-03-25 Improvements in casting processes

Country Status (5)

Country Link
US (1) US3459253A (en)
CH (1) CH436587A (en)
ES (1) ES310930A1 (en)
GB (1) GB1055737A (en)
NL (1) NL6503649A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141059A (en) * 1983-04-26 1984-12-12 Gkn Technology Ltd Squeeze-cast article
GB2236497A (en) * 1989-09-29 1991-04-10 Kolbenschmidt Ag Apparatus for use in the manufacture of light-alloy pistons for internal combustion engines
DE10003821A1 (en) * 2000-01-28 2001-08-09 Ks Kolbenschmidt Gmbh Non-ferrous metal piston for internal combustion engine, with removable core to produce cavity, attached to cast liner outside it by means of fixing devices
DE102011082935A1 (en) 2011-09-19 2013-03-21 Mahle International Gmbh Casting mold of a piston
CN104353790A (en) * 2014-11-12 2015-02-18 中船重工西安东仪科工集团有限公司 Preparation method of closed spatial curved surface structure casting core

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645491A (en) * 1969-07-22 1972-02-29 Aeroplane Motor Aluminum Casti Soluble metal casting cores comprising a water-soluble salt and a synthetic resin
DE2402337A1 (en) * 1974-01-18 1975-07-31 Schmidt Gmbh Karl METHOD OF MANUFACTURING A LIGHT ALLOY PISTON WITH AN ANNUAL COOLING CHANNEL ARRANGED IN ITS HEAD PART
DE2746122C3 (en) * 1977-10-13 1981-02-05 Alcan Aluminiumwerk Nuernberg Gmbh, 6000 Frankfurt Core mass for foundry cores
GB2123727B (en) * 1982-06-25 1985-11-20 Ae Plc Pressure-casting pistons
GB8409044D0 (en) * 1984-04-07 1984-05-16 Gkn Technology Ltd Casting metal articles
US4632169A (en) * 1985-05-01 1986-12-30 Outboard Marine Corporation Two cycle cylinder block foam pattern
GB8518909D0 (en) * 1985-07-26 1985-09-04 Ae Plc Engineering components
US4802447A (en) * 1985-12-17 1989-02-07 Brunswick Corporation Foam pattern for engine cylinder block
DE3721021A1 (en) * 1986-06-27 1988-01-21 Aisin Seiki METHOD FOR PRODUCING AN INTERNAL COMBUSTION ENGINE PISTON
US4875517A (en) * 1989-05-01 1989-10-24 Brunswick Corporation Method of producing salt cores for use in die casting
US5242646A (en) * 1992-05-07 1993-09-07 Minnesota Mining And Manufacturing Company Method of making an interengaging fastener member
US6682315B2 (en) * 2001-11-28 2004-01-27 Caterpillar Inc Axial piston pump barrel with a cast high pressure collection cavity
DE10325917A1 (en) * 2003-06-07 2005-03-31 Mahle Gmbh Piston for an internal combustion engine and casting process for its production
JP4516024B2 (en) * 2003-09-17 2010-08-04 盾 八百川 Casting core
US20060243421A1 (en) * 2005-04-29 2006-11-02 United States Of America, Represented By Secretary Of The U.S. Army Soluble casting core for metal matrix composite components and method of producing thereof
DE102005061075A1 (en) * 2005-12-21 2007-06-28 Mahle International Gmbh Piston for internal combustion engine has hub cooling channels arranged in bolt hub regions close to bottom of piston and each connected to cooling channel
DE102006056011A1 (en) 2006-11-28 2008-05-29 Ks Kolbenschmidt Gmbh Liquid-cooled piston for e.g. diesel internal-combustion engine, has medium in free jet of nozzles entering into openings, where jet is directed parallel to longitudinal axis of piston, and lower side loaded with medium by jet
DE102010043124A1 (en) * 2010-10-29 2012-05-03 Federal-Mogul Nürnberg GmbH Piston for an internal combustion engine
DE102011076455A1 (en) * 2011-05-25 2012-11-29 Mahle International Gmbh Casting core for forming a cooling channel in a piston
DE102011086411A1 (en) * 2011-11-15 2013-05-16 Mahle International Gmbh Mold for a piston

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US392573A (en) * 1888-11-06 thompson
US3126595A (en) * 1964-03-31 Method of reinforcing green sand cores
US1769455A (en) * 1929-08-28 1930-07-01 Doehler Die Casting Co Core for undercut cup-shaped articles
US2076971A (en) * 1930-05-26 1937-04-13 Harold A Soulis Piston mold
US2420851A (en) * 1943-07-08 1947-05-20 Austenal Lab Inc Method of making patterns and use thereof
US2474186A (en) * 1947-02-07 1949-06-21 Crane Co Reinforced core
GB632972A (en) * 1947-06-25 1949-12-05 Dunlop Rubber Co Improvements in or relating to cores suitable for making moulded articles and to the production of such articles
US2688781A (en) * 1949-11-12 1954-09-14 Schwoegler Self-eliminating core wire and core
GB789721A (en) * 1954-03-09 1958-01-29 Rolls Royce Improvements relating to casting processes for metals
GB872642A (en) * 1957-08-15 1961-07-12 Sulzer Ag Producing moulds for foundry purposes
GB872641A (en) * 1957-08-15 1961-07-12 Sulzer Ag Producing moulds for foundry purposes
US3149383A (en) * 1960-02-26 1964-09-22 Rockwell Gmbh Method of protecting cylinder liner transfer openings from casting material during injection die-casting of cylinders
US3138856A (en) * 1961-10-09 1964-06-30 Dow Chemical Co Method of producing clad porous metal articles
US3372829A (en) * 1964-05-18 1968-03-12 Union Steel Prod Co Portable and collapsible stacking bins or crates
US3356129A (en) * 1964-06-30 1967-12-05 Schmidt Gmbh Karl Process of casting metals by use of water-soluble salt cores
US3311956A (en) * 1965-05-24 1967-04-04 Kaiser Aluminium Chem Corp Casting process employing soluble cores

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141059A (en) * 1983-04-26 1984-12-12 Gkn Technology Ltd Squeeze-cast article
GB2236497A (en) * 1989-09-29 1991-04-10 Kolbenschmidt Ag Apparatus for use in the manufacture of light-alloy pistons for internal combustion engines
DE10003821A1 (en) * 2000-01-28 2001-08-09 Ks Kolbenschmidt Gmbh Non-ferrous metal piston for internal combustion engine, with removable core to produce cavity, attached to cast liner outside it by means of fixing devices
DE10003821C2 (en) * 2000-01-28 2002-11-07 Ks Kolbenschmidt Gmbh Piston, in particular a light metal piston for an internal combustion engine
DE10003821C5 (en) * 2000-01-28 2008-06-26 Ks Kolbenschmidt Gmbh Piston, in particular a light metal piston for an internal combustion engine
DE102011082935A1 (en) 2011-09-19 2013-03-21 Mahle International Gmbh Casting mold of a piston
CN104353790A (en) * 2014-11-12 2015-02-18 中船重工西安东仪科工集团有限公司 Preparation method of closed spatial curved surface structure casting core
CN104353790B (en) * 2014-11-12 2016-06-29 中船重工西安东仪科工集团有限公司 The preparation method of closed type space curved surface structural casting core

Also Published As

Publication number Publication date
NL6503649A (en) 1965-09-27
ES310930A1 (en) 1966-01-01
US3459253A (en) 1969-08-05
CH436587A (en) 1967-05-31

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