GB967355A - Process for metering and transferring molten metal and apparatus useful in the process - Google Patents

Process for metering and transferring molten metal and apparatus useful in the process

Info

Publication number
GB967355A
GB967355A GB5698/63A GB569863A GB967355A GB 967355 A GB967355 A GB 967355A GB 5698/63 A GB5698/63 A GB 5698/63A GB 569863 A GB569863 A GB 569863A GB 967355 A GB967355 A GB 967355A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
chamber
metal
stroke
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
GB5698/63A
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB967355A publication Critical patent/GB967355A/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
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/30—Accessories for supplying molten metal, e.g. in rations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D39/00—Equipment for supplying molten metal in rations

Abstract

967,355. Casting-machines. DOW CHEMICAL CO. Feb. 12, 1963 [Feb. 14, 1962], No. 5698/63. Heading B3F. [Also in Division F1] Molten metal is supplied to the shot chamber of a die-casting machine by drawing it through a valve into a chamber by applying a reduced pressure to the chamber, closing the valve and delivering the metal from the chamber to a delivery tube by applying pressure to the chamber, the delivery being controlled by opening and closing a second valve communicating with the delivery tube, in such manner that both valves are not closed at the same time. The two valve heads 52, 57 are mounted on one stem 49 in an assembly 12 and actuated by an air cylinder 21 controlled through a timer. The molten metal is drawn from the supply 15 through open valve 52 into the cylinder 41 of a piston pump 10 on the downward suction stroke of the open-ended piston 27 connected to a yoke 34 driven by a reciprocating air piston 20 also controlled by a timer. On the upward stroke of the piston the valve 52 is closed, valve 57 is open and metal is forced through the delivery pipe 13, the required quantity of metal being delivered and the valve 57 being closed while the piston is still on its upward stroke. Major changes in volume to be delivered can be achieved by changing the pump, smaller changes by adjusting the stroke of the pump piston 27 as by adjusting the stroke of the actuating air piston. Delicate changes in volume can be made by adjusting the timing of the valve operation and piston speed. For casting magnesium and alloys thereof metal contacting surfaces are of chrome steel, for aluminium &c., of steel coated with refractories such titanium diboride and zirconium diboride. In a modification, Fig. 7, the molten metal is drawn into a chamber 67 by applying a vacuum thereto and expelled by applying a pressurized inert gas such as argon, a contact 70 causing the valves to be actuated when the metal in the chamber reaches a predetermined level.
GB5698/63A 1962-02-14 1963-02-12 Process for metering and transferring molten metal and apparatus useful in the process Expired GB967355A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US173273A US3184812A (en) 1962-02-14 1962-02-14 Metering and delivery apparatus for molten metal and method of use

Publications (1)

Publication Number Publication Date
GB967355A true GB967355A (en) 1964-08-19

Family

ID=22631269

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5698/63A Expired GB967355A (en) 1962-02-14 1963-02-12 Process for metering and transferring molten metal and apparatus useful in the process

Country Status (2)

Country Link
US (1) US3184812A (en)
GB (1) GB967355A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4556098A (en) * 1978-08-18 1985-12-03 Laboratoire Suisse De Recherches Horlogeres Hot chamber die casting of aluminum and its alloys
WO1991017010A1 (en) * 1990-05-07 1991-11-14 Electrovert Ltd. Valve mechanism for casting metal alloys with low melting temperatures

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2540427B2 (en) * 1992-12-09 1996-10-02 株式会社荏原製作所 Plunger pump device with shuttle valve

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US334483A (en) * 1886-01-19 Hand force-pump
CA585947A (en) * 1959-10-27 F. Bauer Alfred Automatic metal metering device
US1383241A (en) * 1920-09-21 1921-06-28 Charles A Brengelman Grease-pump
US2496821A (en) * 1947-04-29 1950-02-07 Emma R Dawson Pump for dispensing cans

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4556098A (en) * 1978-08-18 1985-12-03 Laboratoire Suisse De Recherches Horlogeres Hot chamber die casting of aluminum and its alloys
WO1991017010A1 (en) * 1990-05-07 1991-11-14 Electrovert Ltd. Valve mechanism for casting metal alloys with low melting temperatures

Also Published As

Publication number Publication date
US3184812A (en) 1965-05-25

Similar Documents

Publication Publication Date Title
GB967355A (en) Process for metering and transferring molten metal and apparatus useful in the process
US3184811A (en) Metering and delivery apparatus for molten metal and method of use
ES430764A1 (en) Method for pressure casting
GB1188663A (en) Improvements relating to the Ladling Of Liquid Metal
GB1102614A (en) Die-casting machine
GB1008610A (en) Improvements in or relating to pressure die-casting machines
GB943378A (en) Air gun
GB808444A (en) Metal metering apparatus
EP0530244B1 (en) Injection unit for a hydraulic die-casting machine, provided with a device for the elimination of pressure peaks at injection
GB2323804A (en) Molten metal supply
GB588780A (en) Improvements relating to die-casting machines
US6358468B1 (en) Apparatus and method for metering molten metal
GB1213065A (en) Apparatus for controlling die casting machines
GB1187792A (en) Improvements in or relating to Die-Casting Machines
GB1337974A (en) Die casting machines
GB1505102A (en) Method of and apparatus for control of finishing pressure in the die-casting of metals
GB1463879A (en) Cold-chamber die-casting machine
GB1281554A (en) Improvements relating to apparatus for supplying molten lead to a casting machine
GB735155A (en) Apparatus for delivering metered shots of molten metal for castings
GB1388020A (en) Die-casting method
GB903153A (en) Improvements in or relating to apparatus for delivering a stream of liquid at a constant rate of flow
GB924278A (en) Free piston engine
GB191421685A (en) Improved Construction of Apparatus for Casting Tin and other Metals or Substances.
GB1399820A (en) Diecastin machines
GB928063A (en) Improvements in or relating to die casting machines