GB1234286A - - Google Patents

Info

Publication number
GB1234286A
GB1234286A GB1234286DA GB1234286A GB 1234286 A GB1234286 A GB 1234286A GB 1234286D A GB1234286D A GB 1234286DA GB 1234286 A GB1234286 A GB 1234286A
Authority
GB
United Kingdom
Prior art keywords
billet
piston
holder
cylinder
moved
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
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 filed Critical
Publication of GB1234286A publication Critical patent/GB1234286A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00Extruding metal; Impact extrusion
    • B21C23/007Hydrostatic extrusion

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Forging (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Extrusion Of Metal (AREA)

Abstract

1,234,286. Extruding. ALLMANNA SVENSKA ELEKTRISKA AB. 4 Oct., 1968 [6 Oct., 1967], No. 47185/68. Heading B3P. A press for hydrostatic extrusion of a billet comprises a press stand, a cylindrical high pressure chamber filled with liquid, a die 19 having at least one extrusion opening, a piston 5 which, when moved into the pressure chamber, generates the necessary hydrostatic pressure to extrude a billet 6 inserted in the chamber, and a billet holder, and is characterized in that the billet holder comprises a movable piston 1 dividing the pressure chamber into two spaces 3 and 4, which piston on the side 8 facing the billet is shaped to centre and clamp the billet 6 and is provided with overflow channels 9 and 10 which, at a certain pressure difference between opposite sides of the piston 1, allows liquid to flow from the space 3 between the pressure-generating piston 5 and the billet holder to the space 4 between the billet holder and the die 19. In operation the piston 5 and cylinder 2 are in their left-hand end positions (see Fig. 2) and a billet 6 and the die 19 are moved by the holder mechanism 59 to a position opposite the space 4 in the cylinder 2. The cylinder 2 is then displaced to the right by operating cylinder 22 (to the position shown in Fig. 3) and a pressure medium is introduced into the space 3 through the conduit 39. The billet holder 1 is moved to the right so that its conical surface 8 engages the billet 6, which in turn presses against the die 19 which is moved against the support 18 with a force which is limited by the opening of valve means 11. The holder 40 is then withdrawn. The cylinder 2 and piston 5 are displaced simultaneously to the right until the cylinder contacts the support 18. The pressure generating piston 5 is then moved to the right and extrusion commences, the billet being held in the correct position by the liquid pressure and the holder 1 now releases the billet (see Fig. 7). The piston 5 and cylinder 2 are then moved simultaneously back to their left-hand end positions and the die 19 with the remnants of the billet is displaced to the left. A crosscutting saw 51 is then moved forward and cuts the rod 48 close to the die 19.
GB1234286D 1967-10-06 1968-10-04 Expired GB1234286A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE13689/67A SE320948B (en) 1967-10-06 1967-10-06

Publications (1)

Publication Number Publication Date
GB1234286A true GB1234286A (en) 1971-06-03

Family

ID=20297826

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1234286D Expired GB1234286A (en) 1967-10-06 1968-10-04

Country Status (12)

Country Link
US (1) US3531965A (en)
AT (1) AT285292B (en)
BE (1) BE721642A (en)
CH (1) CH471676A (en)
DK (1) DK131135B (en)
FI (1) FI52529C (en)
FR (1) FR1603623A (en)
GB (1) GB1234286A (en)
IE (1) IE32409B1 (en)
NL (1) NL156070B (en)
NO (1) NO130147B (en)
SE (1) SE320948B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108787774A (en) * 2018-03-23 2018-11-13 中国重型机械研究院股份公司 A kind of hydrostatic extruder and pressing method of wire wrapped
CN109304378A (en) * 2018-11-21 2019-02-05 中国重型机械研究院股份公司 A kind of device of 1800MPa fluid pressure
CN109304381A (en) * 2018-11-21 2019-02-05 中国重型机械研究院股份公司 A kind of metal hydrostatic extruder extruded product buffer unit
CN109332412A (en) * 2018-11-21 2019-02-15 中国重型机械研究院股份公司 A kind of filling liquid structure of the super super-pressure of metal hydrostatic extruder

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE339927B (en) * 1970-04-30 1971-11-01 Asea Ab
SE338550B (en) * 1970-04-30 1971-09-13 Asea Ab
SE340605B (en) * 1970-05-26 1971-11-29 Asea Ab
US3702555A (en) * 1971-02-25 1972-11-14 Asea Ab Press for hot hydrostatic extrusion
SE358565B (en) * 1971-03-12 1973-08-06 Asea Ab
SE364650B (en) * 1971-03-15 1974-03-04 Asea Ab
US3722245A (en) * 1971-05-18 1973-03-27 Kobe Steel Ltd Hydrostatically operated extruding machine
US3817069A (en) * 1972-05-25 1974-06-18 Ford Motor Co Continuous hydrostatic extrusion die assembly and method for using it in forming extruded parts
US4023390A (en) * 1973-09-19 1977-05-17 Kobe Steel Ltd. Machine for use in hydrostatic extrusion
SE386383B (en) * 1973-10-12 1976-08-09 Asea Ab TUBE PRESSURE FOR HYDROSTATIC EXTENSION WITH SUBSTRATE PISTON IN PRESSURE CHAMBER
SE382760C (en) * 1974-06-10 1977-06-27 Carbox Ab DEVICE FOR ISOSTATIC PRESSES
US4112723A (en) * 1974-11-07 1978-09-12 Kobe Steel, Ltd. Hydrostatic extrusion apparatus
SE7512451L (en) * 1974-11-07 1976-05-10 Kobe Steel Ltd SET AND APPLIANCE FOR HYDROSTATIC EXTENSION
SE407907B (en) * 1975-10-23 1979-04-30 Asea Ar HYDROSTATIC EXTENSION PROCEDURE FOR HOLDING A SUBSTANCE IN ITS INSTALLATION IN A PRESSURE CHAMBER
US4305270A (en) * 1979-11-13 1981-12-15 Kokovikhin Evgeny A Hydrostatic pressing apparatus
AT403531B (en) * 1994-08-10 1998-03-25 Chemiefaser Lenzing Ag DEVICE FOR REGULATING PRESSURE IN A FLOWING, VISCOSE DIMENSION
US20150068266A1 (en) * 2013-09-10 2015-03-12 Manchester Copper Products, Llc Positive stop systems and methods for extrusion press
CN104289544B (en) * 2014-10-11 2016-04-27 昆山名威精密工业有限公司 A kind of super long type push rod hanging platform heated extrusion device
CN105268754A (en) * 2015-11-17 2016-01-27 无锡市威特机械有限公司 Limiting rod device used for extruder
CN112548047A (en) * 2020-11-04 2021-03-26 青岛新东机械有限公司 Full-automatic single-station molding machine

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
US3364716A (en) * 1965-07-07 1968-01-23 Fielding & Platt Ltd Extrusion apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108787774A (en) * 2018-03-23 2018-11-13 中国重型机械研究院股份公司 A kind of hydrostatic extruder and pressing method of wire wrapped
CN109304378A (en) * 2018-11-21 2019-02-05 中国重型机械研究院股份公司 A kind of device of 1800MPa fluid pressure
CN109304381A (en) * 2018-11-21 2019-02-05 中国重型机械研究院股份公司 A kind of metal hydrostatic extruder extruded product buffer unit
CN109332412A (en) * 2018-11-21 2019-02-15 中国重型机械研究院股份公司 A kind of filling liquid structure of the super super-pressure of metal hydrostatic extruder

Also Published As

Publication number Publication date
CH471676A (en) 1969-04-30
NL6814271A (en) 1969-04-09
IE32409B1 (en) 1973-07-25
SE320948B (en) 1970-02-23
AT285292B (en) 1970-10-27
DE1800514A1 (en) 1969-06-26
NO130147B (en) 1974-07-15
IE32409L (en) 1969-04-06
DK131135C (en) 1975-11-03
NL156070B (en) 1978-03-15
FR1603623A (en) 1971-05-10
BE721642A (en) 1969-03-03
FI52529C (en) 1977-10-10
US3531965A (en) 1970-10-06
DE1800514B2 (en) 1976-01-22
FI52529B (en) 1977-06-30
DK131135B (en) 1975-06-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee