WO2003078087A1 - Verfahren zum betreiben einer metallstrangpresse insbesondere einer liegenden metallstrangpresse - Google Patents
Verfahren zum betreiben einer metallstrangpresse insbesondere einer liegenden metallstrangpresse Download PDFInfo
- Publication number
- WO2003078087A1 WO2003078087A1 PCT/DE2003/000600 DE0300600W WO03078087A1 WO 2003078087 A1 WO2003078087 A1 WO 2003078087A1 DE 0300600 W DE0300600 W DE 0300600W WO 03078087 A1 WO03078087 A1 WO 03078087A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- block
- metal bar
- bar press
- operating
- press
- Prior art date
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
- 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)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50301550T DE50301550D1 (de) | 2002-03-13 | 2003-02-26 | Verfahren zum betreiben einer metallstrangpresse, insbesondere einer liegenden metallstrangpresse |
EP03714656A EP1483066B1 (de) | 2002-03-13 | 2003-02-26 | Verfahren zum betreiben einer metallstrangpresse, insbesondere einer liegenden metallstrangpresse |
JP2003576131A JP2005527379A (ja) | 2002-03-13 | 2003-02-26 | 金属押出しプレス、特に横置き型の金属押出しプレスを運転するための方法 |
AT03714656T ATE308389T1 (de) | 2002-03-13 | 2003-02-26 | Verfahren zum betreiben einer metallstrangpresse, insbesondere einer liegenden metallstrangpresse |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10211267.3 | 2002-03-13 | ||
DE10211267A DE10211267A1 (de) | 2002-03-13 | 2002-03-13 | Verfahren zum Betreiben einer Metallstrangpresse, insbesondere einer liegenden Metallstrangpresse |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003078087A1 true WO2003078087A1 (de) | 2003-09-25 |
Family
ID=27771293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2003/000600 WO2003078087A1 (de) | 2002-03-13 | 2003-02-26 | Verfahren zum betreiben einer metallstrangpresse insbesondere einer liegenden metallstrangpresse |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1483066B1 (de) |
JP (1) | JP2005527379A (de) |
CN (1) | CN1642668A (de) |
AT (1) | ATE308389T1 (de) |
DE (2) | DE10211267A1 (de) |
WO (1) | WO2003078087A1 (de) |
Citations (3)
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 |
DE2635406A1 (de) * | 1976-08-06 | 1978-02-09 | Kabel Metallwerke Ghh | Verfahren zum strangpressen von metallbloecken |
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 WO PCT/DE2003/000600 patent/WO2003078087A1/de active IP Right Grant
- 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
- 2003-02-26 CN CN03805838.3A patent/CN1642668A/zh active Pending
- 2003-02-26 EP EP03714656A patent/EP1483066B1/de not_active Expired - Lifetime
Patent Citations (3)
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 |
DE2635406A1 (de) * | 1976-08-06 | 1978-02-09 | Kabel Metallwerke Ghh | Verfahren zum strangpressen von metallbloecken |
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 |
Also Published As
Publication number | Publication date |
---|---|
EP1483066A1 (de) | 2004-12-08 |
DE50301550D1 (de) | 2005-12-08 |
JP2005527379A (ja) | 2005-09-15 |
DE10211267A1 (de) | 2003-09-25 |
CN1642668A (zh) | 2005-07-20 |
EP1483066B1 (de) | 2005-11-02 |
ATE308389T1 (de) | 2005-11-15 |
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