GB520419A - Improvements in and relating to die-casting machines - Google Patents

Improvements in and relating to die-casting machines

Info

Publication number
GB520419A
GB520419A GB30610/38A GB3061038A GB520419A GB 520419 A GB520419 A GB 520419A GB 30610/38 A GB30610/38 A GB 30610/38A GB 3061038 A GB3061038 A GB 3061038A GB 520419 A GB520419 A GB 520419A
Authority
GB
United Kingdom
Prior art keywords
pressure
cap
plunger
piston
water
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
GB30610/38A
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 GB520419A publication Critical patent/GB520419A/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
    • B22D17/32—Controlling equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

520,419. Casting-machines. POLAK, J. Oct. 22, 1938, No. 30610. Convention date, Nov. 11, 1937. [Class 83 (i)] Clamping moulds.-In a die-casting machine, having a press chamber 1 for the molten metal with a cap 2 and a forcing plunger 71, the pressure for moving the cap 2 down is increased to ensure tight closure, this increased pressure initiating the upward movement of the plunger 71 and also if desired, increasing the pressure on the mould-closing piston 12. The machine has four two-way valves 8 ...11, each connected to water, under accumulator pressure, and to exhaust, of which 11 is operated to close the mould m and 8 to move the piston 3 and cap 2 down. Before it engages the chamber 1, the cap 2, by means of a flange 15, operates the valve 9 to admit water below the piston of an intensifier 5 thus supplying high pressure water to the pistons 3 and 12 and to a plunger 18 previously supplied with low-pressure water and balanced by a plunger 19 similarly supplied. This high pressure operates the valve 10 to admit low pressure water-below the piston 7 and force the metal into the mould. Reversal of the valves 8, 11 causes the parts to return to their original positions.
GB30610/38A 1937-11-11 1938-10-22 Improvements in and relating to die-casting machines Expired GB520419A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS520419X 1937-11-11

Publications (1)

Publication Number Publication Date
GB520419A true GB520419A (en) 1940-04-23

Family

ID=5453337

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30610/38A Expired GB520419A (en) 1937-11-11 1938-10-22 Improvements in and relating to die-casting machines

Country Status (1)

Country Link
GB (1) GB520419A (en)

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