GB1263490A - Improvements in hydrostatic extrusion apparatus - Google Patents

Improvements in hydrostatic extrusion apparatus

Info

Publication number
GB1263490A
GB1263490A GB33075/69A GB3307569A GB1263490A GB 1263490 A GB1263490 A GB 1263490A GB 33075/69 A GB33075/69 A GB 33075/69A GB 3307569 A GB3307569 A GB 3307569A GB 1263490 A GB1263490 A GB 1263490A
Authority
GB
United Kingdom
Prior art keywords
calculator
extrusion
plunger
cylinder
billet
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
GB33075/69A
Inventor
Ingemar Stromblad
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.)
ABB Norden Holding AB
Original Assignee
Allmanna Svenska Elektriska AB
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 Allmanna Svenska Elektriska AB filed Critical Allmanna Svenska Elektriska AB
Publication of GB1263490A publication Critical patent/GB1263490A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/007—Hydrostatic extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C31/00—Control devices, e.g. for regulating the pressing speed or temperature of metal; Measuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Presses (AREA)
  • Extrusion Of Metal (AREA)
  • Forging (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

1,263,490. Extruding. ALLMANNA SVENSKA ELEKTRISKA A.B. 1 July, 1969 [2 July, 1968], No. 33075/69. Heading B3P. A hydrostatic extrusion apparatus comprising a pressure chamber 3, a plunger 12 and an operating cylinder 2 has a position indicator 30 for the plunger, a pressure indicator 28 for the cylinder and a calculator 34 to receive signals from the indicators and to sense when the extrusion starts and to interrupt the extrusion when the billet is almost completely extruded. The calculator is calibrated using a billet of known volume and with no billet in the pressure chamber. During operation the signals from the indicators are compared in the calculator with the calibrated values. The calculator may be digital or analogue and control one or more presses. The extrusion pressure fluid for the cylinder 2 is supplied through a solenoid valve 21. In operation the start of the extrusion (S 1 ), Fig. I (not shown), is signalled to the calculator which calculates the distance the plunger 12 is allowed to travel into the chamber 3. The valve is moved to either interrupt the pressure supply or to unload the cylinder 2 to allow the plunger to recoil.
GB33075/69A 1968-07-02 1969-07-01 Improvements in hydrostatic extrusion apparatus Expired GB1263490A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE09077/68A SE326932B (en) 1968-07-02 1968-07-02

Publications (1)

Publication Number Publication Date
GB1263490A true GB1263490A (en) 1972-02-09

Family

ID=20275778

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33075/69A Expired GB1263490A (en) 1968-07-02 1969-07-01 Improvements in hydrostatic extrusion apparatus

Country Status (4)

Country Link
US (1) US3592032A (en)
FR (1) FR2012139A1 (en)
GB (1) GB1263490A (en)
SE (1) SE326932B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810374A (en) * 1972-02-07 1974-05-14 A Zeitlin Apparatus and method for hydrostatic extrusion
SE383269B (en) * 1972-09-14 1976-03-08 Asea Ab HYDROSTATIC EXTENSION PROCEDURE
DE4244261C2 (en) * 1992-12-22 1995-05-11 Mannesmann Ag Working procedure for loading a press block and metal extrusion press for carrying out the working procedure
US7191630B2 (en) * 2003-07-25 2007-03-20 Engineered Performance Materials Co., Llc Method and apparatus for equal channel angular extrusion of flat billets
CN113118229B (en) * 2021-04-16 2023-04-07 广东言铝铝业有限公司 Aluminum bar extruder

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558035A (en) * 1947-07-05 1951-06-26 Percy W Bridgman Method and apparatus for cold drawing
US3491565A (en) * 1966-08-17 1970-01-27 Barogenics Inc Equipment adapted for hydrostatic extrusion and other uses

Also Published As

Publication number Publication date
FR2012139A1 (en) 1970-03-13
US3592032A (en) 1971-07-13
DE1932662B2 (en) 1976-10-07
SE326932B (en) 1970-08-10
DE1932662A1 (en) 1970-08-20

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