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 processInfo
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reciprocating Pumps (AREA)
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.
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)
| 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)
| 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)
| 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 |
-
1962
- 1962-02-14 US US173273A patent/US3184812A/en not_active Expired - Lifetime
-
1963
- 1963-02-12 GB GB5698/63A patent/GB967355A/en not_active Expired
Cited By (2)
| 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 |
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