ATE140885T1 - METHOD FOR BLOWING OUT THE AIR TRAPPED BETWEEN THE DIE AND THE BILLET IN AN EXTRUSION PRESS - Google Patents

METHOD FOR BLOWING OUT THE AIR TRAPPED BETWEEN THE DIE AND THE BILLET IN AN EXTRUSION PRESS

Info

Publication number
ATE140885T1
ATE140885T1 AT92106740T AT92106740T ATE140885T1 AT E140885 T1 ATE140885 T1 AT E140885T1 AT 92106740 T AT92106740 T AT 92106740T AT 92106740 T AT92106740 T AT 92106740T AT E140885 T1 ATE140885 T1 AT E140885T1
Authority
AT
Austria
Prior art keywords
billet
die
air trapped
extrusion press
blowing out
Prior art date
Application number
AT92106740T
Other languages
German (de)
Inventor
Renato Seminari
Original Assignee
Innocenti Eng Spa
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11360662&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE140885(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Innocenti Eng Spa filed Critical Innocenti Eng Spa
Application granted granted Critical
Publication of ATE140885T1 publication Critical patent/ATE140885T1/en

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
    • B21C27/00—Containers for metal to be extruded
    • B21C27/04—Venting metal-container chamber
    • 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
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/211—Press driving devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Powder Metallurgy (AREA)

Abstract

The invention relates to a method of carrying out an ejection cycle for air trapped between a billet and a die in a generic metal extrusion press (1) which comprises a carrier (5) for a billet (b) and a plunger (2) provided with respective actuating hydraulic cylinder/piston assemblies (6;3 and 4). For carrying out the method, the press (1) is provided with hydropneumatic accumulators (11,15) adapted to supply the cylinder/piston assemblies (4 and 6) with oil under such a pressure as to resist the thrust forces of the carrier (5) against the extrusion die (M) and of the plunger (2) against the billet (b) as the latter is being extruded. <IMAGE>
AT92106740T 1991-09-13 1992-04-21 METHOD FOR BLOWING OUT THE AIR TRAPPED BETWEEN THE DIE AND THE BILLET IN AN EXTRUSION PRESS ATE140885T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI912427A IT1251314B (en) 1991-09-13 1991-09-13 PRESS FOR EXTRUSION OF METALS IN GENERAL AND IN PARTICULAR OF ALUMINUM

Publications (1)

Publication Number Publication Date
ATE140885T1 true ATE140885T1 (en) 1996-08-15

Family

ID=11360662

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92106740T ATE140885T1 (en) 1991-09-13 1992-04-21 METHOD FOR BLOWING OUT THE AIR TRAPPED BETWEEN THE DIE AND THE BILLET IN AN EXTRUSION PRESS

Country Status (6)

Country Link
EP (1) EP0531612B1 (en)
JP (1) JPH05212435A (en)
AT (1) ATE140885T1 (en)
DE (1) DE69212549T2 (en)
ES (1) ES2090404T3 (en)
IT (1) IT1251314B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704783B1 (en) * 1993-05-06 1995-07-28 Clecim Sa METHOD FOR METAL SPINNING AND IMPROVED SPINNING PRESS.
US5445004A (en) * 1993-11-24 1995-08-29 Breda Danieli Extrusion Extrusion method with gas evacuation, and extrusion press
DE10006704B4 (en) * 2000-02-15 2005-02-24 Sms Eumuco Gmbh Drive arrangement of a metal extrusion press
JP2010144840A (en) * 2008-12-19 2010-07-01 Ube Machinery Corporation Ltd Extrusion press
JP5387716B2 (en) * 2012-04-13 2014-01-15 宇部興産機械株式会社 Extrusion press equipment
DE102012009182A1 (en) 2012-05-10 2013-11-14 Sms Meer Gmbh Hydraulic extruder and method for operating a hydraulic extruder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675125A (en) * 1948-01-14 1954-04-13 Genders Reginald Direct and indirect extrusion of metals
DE1039981B (en) * 1951-11-29 1958-10-02 Reginald Victor Rowles Hydraulic press, especially extrusion press, for metal processing
GB1566617A (en) * 1977-04-04 1980-05-08 Davy Loewy Ltd Extrusion press

Also Published As

Publication number Publication date
ES2090404T3 (en) 1996-10-16
ITMI912427A0 (en) 1991-09-13
EP0531612B1 (en) 1996-07-31
DE69212549D1 (en) 1996-09-05
JPH05212435A (en) 1993-08-24
EP0531612A1 (en) 1993-03-17
ITMI912427A1 (en) 1993-03-14
IT1251314B (en) 1995-05-08
DE69212549T2 (en) 1997-02-27

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties