GB855495A - Improvements in die casting machines - Google Patents
Improvements in die casting machinesInfo
- Publication number
- GB855495A GB855495A GB2018759A GB2018759A GB855495A GB 855495 A GB855495 A GB 855495A GB 2018759 A GB2018759 A GB 2018759A GB 2018759 A GB2018759 A GB 2018759A GB 855495 A GB855495 A GB 855495A
- Authority
- GB
- United Kingdom
- Prior art keywords
- metal
- die
- passageway
- actuated
- vacuum
- 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
- B22D17/14—Machines with evacuated die cavity
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
855,495. Casting-machines. GOLDHAMER, W. M. June 12, 1959, No. 20187/59. Class 83 (1). A die-casting machine has a separate metal cooling member 24, 25 secured to each die member 6, 7 at least one of said cooling members being movable into engagement with or away from the other cooling member during movement of the die member to which it is attached, a passageway 27a, between the engaged metal cooling members connected to a vacuum duct 28 or exhaust and the die cavity 16, and means for cooling the said cooling members to solidify metal in said passageway before the metal solidifies in the die cavity. The cooling members have chill blocks 46, 47, Figs. 5, 6, with corrugated surfaces which define the tortuous passageway 27a and coolant channels C. The member 25 includes an ejector plunger 57, Fig. 6, which is actuated by striking the machine frame as the dies open, to engage the solidified metal in the passageway and eject it and the attached casting. A baffle 52 and filter 54 prevent particles of metal entering the vacuum system. The cooling members are insulated from the dies by air pockets 41. Solenoid valve 31 in the vacuum system is actuated by a switch 34 on die closing to apply vacuum which is restricted by an orifice 30. A solenoid valve 35 is actuated by timer T to apply full vacuum. A passageway 39<1> opposite the passageway 27a is connected to pressure recording and indicating apparatus 29. The injection plunger 58 is longitudinally slotted and is capable of limited rotation about its longitudinal axis by a cylinder 80, Figs. 10, 11, controlled by a valve 82 actuated by the timer T. The arrangement is such that after die closing and with the plunger retracted and in the position shown in Fig. 10, the application of the partial vacuum to the die sucks up a charge of molten metal from the container 21 into the injection chamber. After a timed delay the cylinder 80 turns the injection plunger to the position shown in Fig. 11, whereat the slot 61 connects the metal feed pipe 20 to atmosphere to allow the metal in the pipe to return to the vessel 21, the solenoid valve 35 is actuated to apply full vacuum and then the cylinder 67 forces the injection plunger forward.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2018759A GB855495A (en) | 1959-06-12 | 1959-06-12 | Improvements in die casting machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2018759A GB855495A (en) | 1959-06-12 | 1959-06-12 | Improvements in die casting machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB855495A true GB855495A (en) | 1960-11-30 |
Family
ID=10141850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2018759A Expired GB855495A (en) | 1959-06-12 | 1959-06-12 | Improvements in die casting machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB855495A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2185925A (en) * | 1986-01-30 | 1987-08-05 | Hitchiner Manufacturing Co | Vented casting molds |
EP0233452A1 (en) * | 1986-01-10 | 1987-08-26 | Akio Nakano | Die casting machine |
WO2005030413A1 (en) * | 2003-10-01 | 2005-04-07 | Cast Centre Pty Ltd | Venting assembly for a casting mould |
CN104070150A (en) * | 2013-01-16 | 2014-10-01 | Ksm铸造集团有限公司 | Device for venting a casting mould |
US11213884B1 (en) * | 2020-12-17 | 2022-01-04 | Metal Industries Research And Development Centre | Stationary vacuum valve |
-
1959
- 1959-06-12 GB GB2018759A patent/GB855495A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0233452A1 (en) * | 1986-01-10 | 1987-08-26 | Akio Nakano | Die casting machine |
GB2185925A (en) * | 1986-01-30 | 1987-08-05 | Hitchiner Manufacturing Co | Vented casting molds |
GB2185925B (en) * | 1986-01-30 | 1989-11-22 | Hitchiner Manufacturing Co | Vented casting molds and a process for making the same |
WO2005030413A1 (en) * | 2003-10-01 | 2005-04-07 | Cast Centre Pty Ltd | Venting assembly for a casting mould |
US7770627B2 (en) | 2003-10-01 | 2010-08-10 | Cast Centre Pty Ltd | Venting assembly for a casting mould |
CN104070150A (en) * | 2013-01-16 | 2014-10-01 | Ksm铸造集团有限公司 | Device for venting a casting mould |
CN104070150B (en) * | 2013-01-16 | 2018-09-21 | Ksm铸造集团有限公司 | Mold exhaust apparatus |
US11213884B1 (en) * | 2020-12-17 | 2022-01-04 | Metal Industries Research And Development Centre | Stationary vacuum valve |
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