GB727334A - Improvements in and relating to the production of seamless tubes - Google Patents

Improvements in and relating to the production of seamless tubes

Info

Publication number
GB727334A
GB727334A GB2719552A GB2719552A GB727334A GB 727334 A GB727334 A GB 727334A GB 2719552 A GB2719552 A GB 2719552A GB 2719552 A GB2719552 A GB 2719552A GB 727334 A GB727334 A GB 727334A
Authority
GB
United Kingdom
Prior art keywords
blank
mandrel
bed
actuated
thrust
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
GB2719552A
Inventor
Adolf Zimpel
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.)
Reisholz Stahl & Roehrenwerk
Original Assignee
Reisholz Stahl & Roehrenwerk
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 Reisholz Stahl & Roehrenwerk filed Critical Reisholz Stahl & Roehrenwerk
Priority to GB2719552A priority Critical patent/GB727334A/en
Priority to FR1070540D priority patent/FR1070540A/en
Priority to BE515392D priority patent/BE515392A/xx
Publication of GB727334A publication Critical patent/GB727334A/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
    • 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
    • B21C1/26—Push-bench drawing

Landscapes

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

Abstract

727,334. Making seamless tubes. STAHLUND ROHRENWERK REISHOLZ AKT.- GES. Oct. 29, 1952, No. 27195/52. Classes 83 (2) and 83 (4). In a method of producing long seamless tubes a hollow blank with a closed end is first produced by a combined piercing, drawing and extrusion press and then drawn out into a tube over a mandrel in a thrust bed. The combined press comprises a mandrel 12, Fig. 3, actuated by a cylinder 22 to first pierce a blank in a receiver 10 without destroying the end of the blank. A ram 11 actuated by a cylinder 14 then extrudes the blank through a die 13a surrounding the mandrel 12 which continues its forward motion to assist in drawing the blank through the die 13a. Rams 18 actuated by cylinders 19 returns the mandrel 12 and ram 11 to release the completed blank 2 which is then placed on a mandrel 31 and pushed through a thrust-bed 3. The thrust-bed may comprise a series of drawing rings 30 or a series of reducing rolls 32 (not shown). Additional driven rolls 34, 36 may be provided at the end of the bed 3 to draw through the finished tube.
GB2719552A 1952-10-29 1952-10-29 Improvements in and relating to the production of seamless tubes Expired GB727334A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2719552A GB727334A (en) 1952-10-29 1952-10-29 Improvements in and relating to the production of seamless tubes
FR1070540D FR1070540A (en) 1952-10-29 1952-10-30 Manufacturing process for seamless tubes on a push bench
BE515392D BE515392A (en) 1952-10-29 1952-11-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2719552A GB727334A (en) 1952-10-29 1952-10-29 Improvements in and relating to the production of seamless tubes

Publications (1)

Publication Number Publication Date
GB727334A true GB727334A (en) 1955-03-30

Family

ID=10255721

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2719552A Expired GB727334A (en) 1952-10-29 1952-10-29 Improvements in and relating to the production of seamless tubes

Country Status (3)

Country Link
BE (1) BE515392A (en)
FR (1) FR1070540A (en)
GB (1) GB727334A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1051769B (en) * 1956-07-13 1959-03-05 Hydraulik Gmbh Hydraulic pipe push bench
DE2820865C2 (en) * 1978-05-10 1980-07-03 Mannesmann Ag, 4000 Duesseldorf Device for making pipes

Also Published As

Publication number Publication date
FR1070540A (en) 1954-07-28
BE515392A (en) 1952-11-29

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