EP1483066A1 - Procede de fonctionnement d'une presse d'extrusion pour metal, en particulier d'une piece d'extrusion pour metal horizontale - Google Patents

Procede de fonctionnement d'une presse d'extrusion pour metal, en particulier d'une piece d'extrusion pour metal horizontale

Info

Publication number: EP1483066A1
Authority: EP; European Patent Office
Prior art keywords: block; metal bar; bar press; operating; press
Prior art date: 2002-03-13
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.): Granted

Application number

EP03714656A

Other languages

German (de)

English (en)

Other versions

EP1483066B1 (fr

Inventor

Uwe Muschalik

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.)

SMS Group GmbH

Original Assignee

SMS Eumuco GmbH

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.)

2002-03-13

Filing date

2003-02-26

Publication date

2004-12-08

2003-02-26 Application filed by SMS Eumuco GmbH filed Critical SMS Eumuco GmbH

2004-12-08 Publication of EP1483066A1 publication Critical patent/EP1483066A1/fr

2005-11-02 Application granted granted Critical

2005-11-02 Publication of EP1483066B1 publication Critical patent/EP1483066B1/fr

2023-02-26 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C33/00—Feeding extrusion presses with metal to be extruded ; Loading the dummy block

Definitions

the invention relates to a method for operating a metal extrusion press, in particular a horizontal metal extrusion press, with a block loader for loading a block to be pressed into a block receiver, to which a die is assigned.
Extrusion and tube presses of this type are well known and are operated either as direct or as indirect presses, i.e. with the die and the transducer fixed to one another during the pressing process or with the die penetrating into the transducer and attached to the front end of the hollow-drilled punch.
the particular version depends, for example, on the materials and weights of the feed material. Solid profiles, rods, strips, wires as well as tubes and hollow profiles made of various materials, e.g. Manufacture aluminum and copper or corresponding alloys.
a pressing residue remains, which is normally separated from the pressed product in front of the tool or the die, but possibly also behind the die, for which purpose sawing and shearing are customary (cf. DE-PS 553 782).
Various block loaders are known for introducing a block into the press center or axis for insertion there into the block receiver, for example through EP 0 791 413 B1 and EP 0 428 989 A2 in the form of swivel loaders.
a supplied block heated in a furnace to the pressing temperature is taken over by loading trays and brought into the free space between the die and the pressing disk by pivoting the block loader into the press axis.
the machine spar with the block receiver is moved towards the die by means of an adjusting cylinder, the block receiver being placed over the block.
the axially movable swivel arm is moved on the shaft in accordance with the advance of the block pickup until the block is between the press ram and the counter beam or its die fastened in a tool holder is clamped.
the swivel arms with the charging cradles can then be swung out for a new loading process.
the invention has for its object to provide a generic method with which the disadvantages mentioned can be avoided.
This object is achieved with a method according to the invention in that a head piece is cut off, preferably sheared, from the block at its end facing the die before it is inserted into the block loader. Alternatively, sawing is possible.
the invention is based on the knowledge that the cause of the product defects is an oxide layer which forms during the heating of the blocks in the furnace from the front side thereof or on the front side, which is then found in the finished product as a disadvantageous inclusion. Since, according to the invention, an advantageous mechanical cut (shears, saws) takes place before the block is loaded into the block receiver and thus before it is inserted into the block loader, for which purpose only a short end of the head piece has to be separated from the block, the disadvantageous oxide inclusions and to rule out defective products.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Forging (AREA)
Extrusion Of Metal (AREA)
Press Drives And Press Lines (AREA)

EP03714656A 2002-03-13 2003-02-26 Procede de fonctionnement d'une presse d'extrusion pour metal, en particulier d'une piece d'extrusion pour metal horizontale Expired - Lifetime EP1483066B1 (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
DE10211267		2002-03-13
DE10211267A DE10211267A1 (de)	2002-03-13	2002-03-13	Verfahren zum Betreiben einer Metallstrangpresse, insbesondere einer liegenden Metallstrangpresse
PCT/DE2003/000600 WO2003078087A1 (fr)	2002-03-13	2003-02-26	Procede de fonctionnement d'une presse d'extrusion pour metal, en particulier d'une piece d'extrusion pour metal horizontale

Publications (2)

Publication Number	Publication Date
EP1483066A1 true EP1483066A1 (fr)	2004-12-08
EP1483066B1 EP1483066B1 (fr)	2005-11-02

Family

ID=27771293

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP03714656A Expired - Lifetime EP1483066B1 (fr)	2002-03-13	2003-02-26	Procede de fonctionnement d'une presse d'extrusion pour metal, en particulier d'une piece d'extrusion pour metal horizontale

Country Status (6)

Country	Link
EP (1)	EP1483066B1 (fr)
JP (1)	JP2005527379A (fr)
CN (1)	CN1642668A (fr)
AT (1)	ATE308389T1 (fr)
DE (2)	DE10211267A1 (fr)
WO (1)	WO2003078087A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE736921C (de) *	1940-08-03	1943-07-01	Krupp Fried Grusonwerk Ag	Presse zum Ummanteln von Kabeln, insbesondere von Aluminium
DE2635406C2 (de) *	1976-08-06	1984-10-18	Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover	Vorrichtung zum Wenden der in einer Strangpresse zu verpressenden Metallblöcke
DE19605885C1 (de) *	1996-02-05	1997-08-21	Alusuisse Lonza Services Ag	Verfahren zum Strangpressen eines Profils od. dgl. Körpers aus einem Barren, sowie Verwendung des Verfahrens

2002
- 2002-03-13 DE DE10211267A patent/DE10211267A1/de not_active Withdrawn
2003
- 2003-02-26 CN CN03805838.3A patent/CN1642668A/zh active Pending
- 2003-02-26 EP EP03714656A patent/EP1483066B1/fr not_active Expired - Lifetime
- 2003-02-26 WO PCT/DE2003/000600 patent/WO2003078087A1/fr not_active Ceased
- 2003-02-26 DE DE50301550T patent/DE50301550D1/de not_active Expired - Fee Related
- 2003-02-26 AT AT03714656T patent/ATE308389T1/de not_active IP Right Cessation
- 2003-02-26 JP JP2003576131A patent/JP2005527379A/ja not_active Ceased

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03078087A1 *

Also Published As

Publication number	Publication date
JP2005527379A (ja)	2005-09-15
DE50301550D1 (de)	2005-12-08
EP1483066B1 (fr)	2005-11-02
ATE308389T1 (de)	2005-11-15
DE10211267A1 (de)	2003-09-25
WO2003078087A1 (fr)	2003-09-25
CN1642668A (zh)	2005-07-20

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