DE69101035D1 - Method and device for hot drawing of extruded or drawn hollow bodies. - Google Patents

Method and device for hot drawing of extruded or drawn hollow bodies.

Info

Publication number
DE69101035D1
DE69101035D1 DE91111070T DE69101035T DE69101035D1 DE 69101035 D1 DE69101035 D1 DE 69101035D1 DE 91111070 T DE91111070 T DE 91111070T DE 69101035 T DE69101035 T DE 69101035T DE 69101035 D1 DE69101035 D1 DE 69101035D1
Authority
DE
Germany
Prior art keywords
extruded
hollow bodies
hot drawing
plunger
drawn hollow
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 - Fee Related
Application number
DE91111070T
Other languages
German (de)
Other versions
DE69101035T2 (en
Inventor
Roberto Frattini
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.)
FRATTINI COSTR MECC
Original Assignee
FRATTINI COSTR MECC
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 FRATTINI COSTR MECC filed Critical FRATTINI COSTR MECC
Publication of DE69101035D1 publication Critical patent/DE69101035D1/en
Application granted granted Critical
Publication of DE69101035T2 publication Critical patent/DE69101035T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B21C9/00—Cooling, heating or lubricating drawing material
    • 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
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
    • B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles by means of mandrels
    • 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
    • B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
    • B21C3/16—Mandrels; Mounting or adjusting same
    • 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
    • B21C45/00—Separating mandrels from work or vice versa
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/36—Making hollow objects characterised by the use of the objects collapsible or like thin-walled tubes, e.g. for toothpaste

Abstract

Drawing of hollow extruded or drawn aluminium bodies is accomplished by forcing the hollow body through a drawing ring pushed by a plunger or mandrel placed inside said body and heated to a temperature not less than 90 DEG C and generally between 105 DEG C and 140 DEG C. The equipment for application of the process comprises one or more toolholder feed bars in which the plungers or mandrels and one or more drawing rings are alternately inserted or coupled and in which each plunger has an inner chamber (22), heating means (14) arranged in said chamber and longitudinal grooves (16) along its outer surface. <IMAGE>
DE91111070T 1990-07-11 1991-07-04 Method and device for hot drawing of extruded or drawn hollow bodies. Expired - Fee Related DE69101035T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT02091690A IT1246763B (en) 1990-07-11 1990-07-11 HOT DRAWING PROCEDURE, ESPECIALLY ON EXTRUDED OR DRAWN BODIES OBTAINED IN ALUMINUM AND EQUIPMENT FOR THE IMPLEMENTATION OF THE PROCEDURE

Publications (2)

Publication Number Publication Date
DE69101035D1 true DE69101035D1 (en) 1994-03-03
DE69101035T2 DE69101035T2 (en) 1994-05-05

Family

ID=11174042

Family Applications (1)

Application Number Title Priority Date Filing Date
DE91111070T Expired - Fee Related DE69101035T2 (en) 1990-07-11 1991-07-04 Method and device for hot drawing of extruded or drawn hollow bodies.

Country Status (5)

Country Link
EP (1) EP0466017B1 (en)
AT (1) ATE100361T1 (en)
DE (1) DE69101035T2 (en)
ES (1) ES2050485T3 (en)
IT (1) IT1246763B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5858784A (en) 1991-12-17 1999-01-12 The Regents Of The University Of California Expression of cloned genes in the lung by aerosol- and liposome-based delivery
US5925628A (en) * 1997-03-31 1999-07-20 Genzyme Corporation Cationic amphiphiles for intracellular delivery of therapeutic molecules

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE343220B (en) * 1971-03-08 1972-03-06 Polytype Ag
DE2733794C2 (en) * 1977-07-27 1983-05-26 Mepag Metall Und Plastik Packung Gmbh & Co, 6500 Mainz Process for the production of flared metal tubes
AT357755B (en) * 1978-11-27 1980-07-25 Mepag Ag METHOD FOR CONICAL WIDTHING OF CYLINDRICAL TUBES
DE3225522A1 (en) * 1982-07-08 1984-01-12 Cebal Verpackungen GmbH & Co KG, 8500 Nürnberg METHOD FOR CONIFICATING TUBES
DE3620309A1 (en) * 1986-06-18 1987-12-23 Hoell Karl Gmbh Co Kg Method and apparatus for the production of tapered laminated tubes

Also Published As

Publication number Publication date
ES2050485T3 (en) 1994-05-16
IT9020916A0 (en) 1990-07-11
EP0466017A1 (en) 1992-01-15
DE69101035T2 (en) 1994-05-05
IT1246763B (en) 1994-11-26
ATE100361T1 (en) 1994-02-15
IT9020916A1 (en) 1992-01-11
EP0466017B1 (en) 1994-01-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee