GB755080A - Improvements in or relating to machines for casting under pressure - Google Patents

Improvements in or relating to machines for casting under pressure

Info

Publication number
GB755080A
GB755080A GB25888/54A GB2588854A GB755080A GB 755080 A GB755080 A GB 755080A GB 25888/54 A GB25888/54 A GB 25888/54A GB 2588854 A GB2588854 A GB 2588854A GB 755080 A GB755080 A GB 755080A
Authority
GB
United Kingdom
Prior art keywords
valve
controlled
die
line
machines
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
GB25888/54A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB755080A publication Critical patent/GB755080A/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
    • B22D17/14—Machines with evacuated die cavity

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

755,080. Casting-machines. HODLER, F. Sept. 7, 1954 [June 29, 1954], No. 25888/54. Class 83 (I). In a pressure die-casting machine an airescape channel in the die is controlled by a valve which is closed as the injection is completed to prevent escape of metal, the valve being controlled by the positive increase of pressure in the hydraulic system produced during the injection operation when the metal reaches a reduction in the cross-section of the feed channel. The vent 11 is controlled by a valve 12 normally held open by a spring 19. The valve is connected to the hydraulic cylinder 9 whose piston 8 actuates the injection piston 6 by a line 21. When the injected metal reaches the constriction 23 in the feed channel 22, increased pressure in the cylinder 9 and line 21 closes the valve 12, the time of closing being regulated by dimensioning the line 21 or by regulating means 24, to cause the final closing of the valve to coincide with complete filling of the die-cavity 3.
GB25888/54A 1954-06-29 1954-09-07 Improvements in or relating to machines for casting under pressure Expired GB755080A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2785448X 1954-06-29
CH755080X 1954-06-29

Publications (1)

Publication Number Publication Date
GB755080A true GB755080A (en) 1956-08-15

Family

ID=32909267

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25888/54A Expired GB755080A (en) 1954-06-29 1954-09-07 Improvements in or relating to machines for casting under pressure

Country Status (2)

Country Link
FR (1) FR1133548A (en)
GB (1) GB755080A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03230855A (en) * 1990-02-05 1991-10-14 Yamazaki Kosakusho:Kk Vacuum casting method in die casting

Also Published As

Publication number Publication date
FR1133548A (en) 1957-03-28

Similar Documents

Publication Publication Date Title
GB1052810A (en)
GB1318009A (en) Mould clamping mechanisms for injection moulding machines
GB755080A (en) Improvements in or relating to machines for casting under pressure
GB962834A (en) Improvements in or relating to die-casting machines
GB976518A (en) Safety device for injection moulding machine
GB972467A (en) Method of and apparatus for setting injection moulding machines, preferably for plastics material
GB958987A (en) Injection moulding machine
GB1233060A (en)
GB960638A (en) Injection moulding machines
GB832718A (en) Injection moulding machines
GB1212510A (en) Improvements in hydraulic ram mechanisms
GB1187792A (en) Improvements in or relating to Die-Casting Machines
GB903520A (en) Vacuum die casting process and apparatus
GB1056861A (en) Improvements in or relating to methods of and apparatus for moulding
GB1182456A (en) Hydraulic Clamping Mechanism for Injection Moulding Machines
GB986369A (en) Device for the actuation of bell-and-hopper arrangements for shaft furnaces, particularly for blast furnaces
GB181378A (en) Improvements in or relating to hydraulic presses
GB796209A (en) Pressure casting and die-casting machines
GB944435A (en) Die casting machines
GB604467A (en) Hydraulic rams and moulding presses
ES239482A1 (en) Device to regulate the speed of injection in a machine for the colada to pressure (Machine-translation by Google Translate, not legally binding)
GB405879A (en) Apparatus for extruding shaped rods and the like
ES210077A3 (en) A new hydraulic system for machines for injection of thermoplastic materials (Machine-translation by Google Translate, not legally binding)
GB875311A (en) Improvements in or relating to casting moulds
GB1279759A (en) Improvements in or relating to safety arrangements in processing machines, particularly plastics injection moulding machines