GB683442A - Improvements in die-casting and injection moulding machines - Google Patents

Improvements in die-casting and injection moulding machines

Info

Publication number
GB683442A
GB683442A GB1969550A GB1969550A GB683442A GB 683442 A GB683442 A GB 683442A GB 1969550 A GB1969550 A GB 1969550A GB 1969550 A GB1969550 A GB 1969550A GB 683442 A GB683442 A GB 683442A
Authority
GB
United Kingdom
Prior art keywords
plunger
space
pressure
sprue
metal
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
GB1969550A
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 GB683442A publication Critical patent/GB683442A/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
    • B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
    • B22D17/12—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled with vertical press motion
    • 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
    • B22D17/26—Mechanisms or devices for locking or opening dies
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C22B15/0002—Preliminary treatment
    • C22B15/0004—Preliminary treatment without modification of the copper constituent
    • C22B15/0008—Preliminary treatment without modification of the copper constituent by wet processes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C22B15/0002—Preliminary treatment
    • C22B15/001—Preliminary treatment with modification of the copper constituent
    • C22B15/0013—Preliminary treatment with modification of the copper constituent by roasting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C22B15/0063—Hydrometallurgy
    • C22B15/0065—Leaching or slurrying
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

683,442. Injection-moulding machines. SAUTER, H., and HAHN, W., (trading as HAHN & KOLB [Firm of]). Aug. 8, 1950 [Oct. 1, 1948], No. 19695/50. Class 87 (ii). [Also in Group XXII] A machine for forcing molter metal from a cylindrical chambe: into one or more dies at the side thereof by an injection plunger an( an opposed plunger which control the sprue, is characterised in that the injection plunger, just before i touches the metal in the chamber positively moves transmitting means towards which the opposed plunge is biassed, so that this also moves, to open the sprue, until arrested by a stop while the transmitting mean continues to follow the movement o the injection plunger. In the ma chine shown with the dies 32, 33 held in closed position and the plunger 2, 3 in the position shown in Fig. 2 by hydraulic pressure in a pipe Q leading to spaces 35 and 27 and con stant hydraulic pressure in a pipe I leading to spaces 24 and 10, the chamber 1 is filled with molten metal. Then hydraulic pressure i applied above a plunger 19 to force it down against a constant pressure in the space 24. The injection plunger, yoke 14 and stepped rods 13 are thus moved down. A bridge 12 is normally held against stops 30 by hydraulic pressure in the space 2' and in a space 26, via a passage 29 from the space 10, tending to force a plunger 5 up. The rod 4 is adjustably fixed to the bridge 12 by nuts 18 and holds the opposed plunger 3 in a position to close the sprue 16 and determine the volume of metal in the chamber 1. When the steps on the rods 13 engage the bridge 12 it is moved down, with the plunger 5 and the rod 4, and the plunger 3 can now move down under the influence of constant hydraulic pressure in the space 26, supplied through passages &c., 29, 10 and P, acting on the piston 9. When this engages the stop 8 of the plunger 7 which is held up by pressure in the space 27, it is arrested, the plunger 3 having just uncovered the sprue 16. Further movement of the plunger 2 forces the molten metal into the dies, the bridge 12 and plunger 5 moving down while the plunger 3 and piston 9 remain stationary. The pressure in the pipe Q is then relieved so that the constant pressure in the pipes P causes the plunger 7 to fall with the plunger 3 to the position shown in Fig. 1, thus extracting the residue 31, and then the plunger 35 to move to the left with the movable die 33, thus extracting, with the casting, the metal which has solidified in the sprue 16. The pressure above the plunger 19 is then relieved and the constant pressure in the space 24 causes it to rise with the plunger 2 leaving the chamber 1 free for cleaning and lubrication. Pressure is then applied again through the pipes Q to close the dies and raise the plunger 7 &c. to the position shown in Fig. 2 so that the cycle can be repeated. A throttle 36 is arranged in the passage 29 to increase the pressure in the space 26 when the plunger 5 is moving down and thus assist the downward movement of the plunger 9.
GB1969550A 1948-10-02 1950-08-08 Improvements in die-casting and injection moulding machines Expired GB683442A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP14388D DE860402C (en) 1948-10-02 1948-10-02 Injection or press molding machine

Publications (1)

Publication Number Publication Date
GB683442A true GB683442A (en) 1952-11-26

Family

ID=32825975

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1969550A Expired GB683442A (en) 1948-10-02 1950-08-08 Improvements in die-casting and injection moulding machines

Country Status (4)

Country Link
BE (1) BE497388A (en)
DE (2) DE860402C (en)
FR (1) FR1070412A (en)
GB (1) GB683442A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1121775B (en) * 1952-08-28 1962-01-11 Renault Pressure chamber for a press casting machine for metals operated by piston pressure
DE1139240B (en) * 1957-09-06 1962-11-08 Tos Rakovnik Narodni Podnik Cold chamber die casting machine with vertically working, hydraulically operated pressure piston and opposed piston

Also Published As

Publication number Publication date
DE275204C (en) 1900-01-01
BE497388A (en) 1900-01-01
DE860402C (en) 1952-12-22
FR1070412A (en) 1954-07-26

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