GB257887A - Improvements in hydraulic presses for the extrusion of seamless tubes - Google Patents

Improvements in hydraulic presses for the extrusion of seamless tubes

Info

Publication number
GB257887A
GB257887A GB7313/26A GB731326A GB257887A GB 257887 A GB257887 A GB 257887A GB 7313/26 A GB7313/26 A GB 7313/26A GB 731326 A GB731326 A GB 731326A GB 257887 A GB257887 A GB 257887A
Authority
GB
United Kingdom
Prior art keywords
piercing
ram
mandrel
main ram
cylinder
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
GB7313/26A
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.)
Schloemann AG
Original Assignee
Schloemann AG
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 Schloemann AG filed Critical Schloemann AG
Publication of GB257887A publication Critical patent/GB257887A/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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/217—Tube extrusion presses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Extrusion Of Metal (AREA)

Abstract

257,887. Schloemann Akt.-Ges. Sept. 2, 1925, [Convention date]. Squirting; bullet-piercing.-In a hydraulic extrusion press for the production of seamless tubes of metal or other plastic material, of the type having a piercing-mandrel operated independently of the main ram, the piercing cylinder and ram are arranged inside the main ram so that the length of the piercing ram is considerably reduced. In Fig. 2, the billet a is first pierced by a mandrel i operated by a cylinder d arranged within the main ram g and having a stationary ram k. The main ram is then moved forward to extrude the tube f through the die h. In a modification, Fig. 3, the piercing-cylinder l is stationary and the piercing-mandrel is actuated by the ram e.
GB7313/26A 1925-09-02 1926-03-16 Improvements in hydraulic presses for the extrusion of seamless tubes Expired GB257887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE257887X 1925-09-02

Publications (1)

Publication Number Publication Date
GB257887A true GB257887A (en) 1926-10-07

Family

ID=5966571

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7313/26A Expired GB257887A (en) 1925-09-02 1926-03-16 Improvements in hydraulic presses for the extrusion of seamless tubes

Country Status (1)

Country Link
GB (1) GB257887A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2865947A1 (en) * 2004-02-10 2005-08-12 Vai Clecim Tube extruding press has needle controlled by power cylinder situated behind main power cylinder and connected to needle by sliding rod
CN108746236A (en) * 2018-05-18 2018-11-06 钱浩 A kind of working cylinder is arranged in the positive and negative two-way extruder on tension column

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2865947A1 (en) * 2004-02-10 2005-08-12 Vai Clecim Tube extruding press has needle controlled by power cylinder situated behind main power cylinder and connected to needle by sliding rod
EP1563920A1 (en) * 2004-02-10 2005-08-17 Vai Clecim Tube extrusion press
CN108746236A (en) * 2018-05-18 2018-11-06 钱浩 A kind of working cylinder is arranged in the positive and negative two-way extruder on tension column

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