GB1365938A - Low pressure die casting method and apparatus therefor - Google Patents

Low pressure die casting method and apparatus therefor

Info

Publication number
GB1365938A
GB1365938A GB4838771A GB4838771A GB1365938A GB 1365938 A GB1365938 A GB 1365938A GB 4838771 A GB4838771 A GB 4838771A GB 4838771 A GB4838771 A GB 4838771A GB 1365938 A GB1365938 A GB 1365938A
Authority
GB
United Kingdom
Prior art keywords
tube
die
furnace
inert gas
molten metal
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
GB4838771A
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.)
SOAG MACHINERY Ltd
Original Assignee
SOAG MACHINERY 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
Priority to BE790179D priority Critical patent/BE790179A/en
Application filed by SOAG MACHINERY Ltd filed Critical SOAG MACHINERY Ltd
Priority to GB4838771A priority patent/GB1365938A/en
Priority to ES407495A priority patent/ES407495A1/en
Priority to CA154,122A priority patent/CA965576A/en
Priority to AU47616/72A priority patent/AU465221B2/en
Priority to US00296810A priority patent/US3823760A/en
Priority to FR7236313A priority patent/FR2156725B1/fr
Priority to CH1511772A priority patent/CH550040A/en
Priority to SE7213361A priority patent/SE389980B/en
Priority to DE2250780A priority patent/DE2250780A1/en
Priority to IT30617/72A priority patent/IT972205B/en
Priority to JP47103677A priority patent/JPS4849625A/ja
Priority to DK515172AA priority patent/DK129506B/en
Publication of GB1365938A publication Critical patent/GB1365938A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

1365938 Pressure die casting machines SOAG MACHINERY Ltd 13 Oct 1972 [18 Oct 1971] 48387/71 Heading B3F A low pressure die casting apparatus having a die 5 mounted over a furnace 9 for molten metal, and a riser tube 11 extending from within the furnace to an orifice 7 leading to the die cavity, is provided with means for introducing an inert gas into said tube 11 near the upper end thereof. The tube 11 is urged upwards by two wedge assemblies 18 so that a cap 15 at the end of the tube 11 is pressed against the orifice 7. An inert gas heavier than air is introduced into the tube 11 through an inlet 19 and the furnace 9 pressurized to force the molten metal up the tube 11 into the die cavity. The inert gas is pushed into the cavity ahead of the metal and flushes out the air contained therein, vents 6 being provided in the mating surfaces of the top and bottom halves of the die. As the metal level in the tube 11 passes a nozzle 21 in the cap 15, a back pressure is produced in the cavity formed between the internal wall of the cap 15 and the outer wall of the nozzle which prevents ingress of molten metal into the inlet 19 and may be used to shut off or reduce the flow of inert gas through the inlet 19. After the metal in the die has solidified, the furnace 9 is vented to permit the excess molten metal in the tube 11 to fall back into the furnace. As the molten metal clears the lower end of the nozzle 21 the back pressure exerted on the inert gas is removed and the flow of said gas restored immediately to prevent ingress of air into the tube 11 on opening the die.
GB4838771A 1971-10-18 1971-10-18 Low pressure die casting method and apparatus therefor Expired GB1365938A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
BE790179D BE790179A (en) 1971-10-18 LOW PRESSURE SHELL MOLDING PROCESS AND APPARATUS FOR IMPLEMENTING THE PROCESS
GB4838771A GB1365938A (en) 1971-10-18 1971-10-18 Low pressure die casting method and apparatus therefor
ES407495A ES407495A1 (en) 1971-10-18 1972-10-10 Low pressure die casting apparatus
CA154,122A CA965576A (en) 1971-10-18 1972-10-11 Low pressure die casting method and apparatus therefor
AU47616/72A AU465221B2 (en) 1971-10-18 1972-10-11 Low pressure die casting method and apparatus therefor
US00296810A US3823760A (en) 1971-10-18 1972-10-12 Low pressure die casting apparatus
FR7236313A FR2156725B1 (en) 1971-10-18 1972-10-13
CH1511772A CH550040A (en) 1971-10-18 1972-10-16 METHOD AND DEVICE FOR LOW PRESSURE CASTING.
SE7213361A SE389980B (en) 1971-10-18 1972-10-17 PRESS CASTING KIT FOR APPLIED PRESSURE AND APPLIANCE FOR PERFORMANCE OF THE KIT
DE2250780A DE2250780A1 (en) 1971-10-18 1972-10-17 METHOD AND DEVICE FOR LOW PRESSURE CASTING
IT30617/72A IT972205B (en) 1971-10-18 1972-10-18 IMPROVEMENTS WITH LOW PRESSURE DIE CASTING EQUIPMENT
JP47103677A JPS4849625A (en) 1971-10-18 1972-10-18
DK515172AA DK129506B (en) 1971-10-18 1972-10-18 Method of low pressure injection molding and apparatus for use in carrying out the method.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4838771A GB1365938A (en) 1971-10-18 1971-10-18 Low pressure die casting method and apparatus therefor

Publications (1)

Publication Number Publication Date
GB1365938A true GB1365938A (en) 1974-09-04

Family

ID=10448438

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4838771A Expired GB1365938A (en) 1971-10-18 1971-10-18 Low pressure die casting method and apparatus therefor

Country Status (13)

Country Link
US (1) US3823760A (en)
JP (1) JPS4849625A (en)
AU (1) AU465221B2 (en)
BE (1) BE790179A (en)
CA (1) CA965576A (en)
CH (1) CH550040A (en)
DE (1) DE2250780A1 (en)
DK (1) DK129506B (en)
ES (1) ES407495A1 (en)
FR (1) FR2156725B1 (en)
GB (1) GB1365938A (en)
IT (1) IT972205B (en)
SE (1) SE389980B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3409995C1 (en) * 1984-03-19 1985-03-14 Norsk Hydro Magnesiumgesellschaft mbH, 4300 Essen Feed tube, in particular for a low-pressure casting apparatus
JPS6224850A (en) * 1985-07-24 1987-02-02 Kobe Steel Ltd Method and apparatus for blowing inert gas to low-pressure casting machine
FR2615768A1 (en) * 1987-05-27 1988-12-02 Centre Nat Rech Scient METHOD FOR SHELL MOLDING, PARTICULARLY METALLIC, AND DEVICE AND SHELL THEREFOR
US5309975A (en) * 1991-10-22 1994-05-10 Hitachi Metals, Ltd. Differential pressure casting process
DK77694A (en) * 1994-06-29 1995-12-30 Dansk Ind Syndikat Method and device for casting against the gravity of molds, especially wet sand molds, in particular easily oxidizable metals or metal alloys of the finished molding process
AU2002360004A1 (en) * 2001-12-28 2003-07-24 Sharp Kabushiki Kaisha Heating cooking device
CN105324196B (en) * 2013-05-08 2018-05-15 博格华纳公司 Method and apparatus for casting calorize titanium part
KR101517571B1 (en) * 2014-06-26 2015-05-06 고동근 A device and a method of melting and forming under vacuum environment
DE102014222006A1 (en) * 2014-10-29 2016-05-04 Robert Bosch Gmbh Production process of electronic housings
CN106270452B (en) * 2016-08-18 2017-12-26 新昌县云海管业有限公司 A kind of hardware makes and uses door handle decompressor
US11148194B2 (en) 2018-05-10 2021-10-19 Adolf Hetke Casting system
US10933465B2 (en) * 2018-05-10 2021-03-02 Adolf Hetke Casting system
US20200360986A1 (en) * 2019-05-14 2020-11-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Casting metals

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1912981A (en) * 1931-04-10 1933-06-06 Dow Chemical Co Method of pressure casting and means therefor
US2210544A (en) * 1938-04-18 1940-08-06 Electric Storage Battery Co Casting
US2997756A (en) * 1956-07-17 1961-08-29 Griffin Wheel Co Method and apparatus for casting ingots
FR2059966A1 (en) * 1969-08-06 1971-06-11 Peugeot & Renault

Also Published As

Publication number Publication date
FR2156725A1 (en) 1973-06-01
US3823760A (en) 1974-07-16
JPS4849625A (en) 1973-07-13
FR2156725B1 (en) 1978-10-20
AU4761672A (en) 1974-04-26
IT972205B (en) 1974-05-20
SE389980B (en) 1976-11-29
DE2250780A1 (en) 1973-05-03
ES407495A1 (en) 1976-02-01
BE790179A (en) 1973-02-15
AU465221B2 (en) 1975-09-18
CH550040A (en) 1974-06-14
CA965576A (en) 1975-04-08
DK129506B (en) 1974-10-21
DK129506C (en) 1975-03-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee