ES342057A1 - A device for the manufacture by hot stretching, in large length, of the hollow profiles and of the hard metals and alloys to deform. (Machine-translation by Google Translate, not legally binding) - Google Patents

A device for the manufacture by hot stretching, in large length, of the hollow profiles and of the hard metals and alloys to deform. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES342057A1
ES342057A1 ES342057A ES342057A ES342057A1 ES 342057 A1 ES342057 A1 ES 342057A1 ES 342057 A ES342057 A ES 342057A ES 342057 A ES342057 A ES 342057A ES 342057 A1 ES342057 A1 ES 342057A1
Authority
ES
Spain
Prior art keywords
deform
translation
manufacture
machine
legally binding
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
ES342057A
Other languages
Spanish (es)
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.)
Cefilac SA
Original Assignee
Cefilac SA
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 Cefilac SA filed Critical Cefilac SA
Publication of ES342057A1 publication Critical patent/ES342057A1/en
Expired 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
    • B21C25/00—Profiling tools for metal extruding
    • B21C25/04—Mandrels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

A device for the manufacture by hot stretching, in great length, of the hollow profiles and of the tubes of metals and alloys difficult to deform having a hollow of small straight section, which consists essentially of a cylindrical needle whose posterior end presents a frusto-conical expansion dimensioned in such a way that, at the end of the stretching, the needle stops having all the contact with the stretched product, said device being characterized because the height of the truncated cone and the useful length of the needle are substantially in the same proportion as the initial and final lengths of the metal to be deformed; and because the half angle of the apex of the truncated cone is between 2 and 10º. (Machine-translation by Google Translate, not legally binding)
ES342057A 1966-07-01 1967-06-20 A device for the manufacture by hot stretching, in large length, of the hollow profiles and of the hard metals and alloys to deform. (Machine-translation by Google Translate, not legally binding) Expired ES342057A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR67823A FR1491539A (en) 1966-07-01 1966-07-01 Device for spinning tubes with small internal diameter

Publications (1)

Publication Number Publication Date
ES342057A1 true ES342057A1 (en) 1968-07-16

Family

ID=8612310

Family Applications (1)

Application Number Title Priority Date Filing Date
ES342057A Expired ES342057A1 (en) 1966-07-01 1967-06-20 A device for the manufacture by hot stretching, in large length, of the hollow profiles and of the hard metals and alloys to deform. (Machine-translation by Google Translate, not legally binding)

Country Status (2)

Country Link
ES (1) ES342057A1 (en)
FR (1) FR1491539A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2726675C3 (en) * 1977-06-14 1981-07-23 Paderwerk Gebr. Benteler, 4794 Schloss Neuhaus Combined piercing and internal mandrel for the extrusion of steel pipes from blocks

Also Published As

Publication number Publication date
FR1491539A (en) 1967-08-11

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19880204