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GB481483A - An improved method of and apparatus for sizing tubes - Google Patents

An improved method of and apparatus for sizing tubes

Info

Publication number
GB481483A
GB481483A GB21910/37A GB2191037A GB481483A GB 481483 A GB481483 A GB 481483A GB 21910/37 A GB21910/37 A GB 21910/37A GB 2191037 A GB2191037 A GB 2191037A GB 481483 A GB481483 A GB 481483A
Authority
GB
United Kingdom
Prior art keywords
zone
conical
rolls
roll
metal
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
GB21910/37A
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.)
Timken Co
Original Assignee
Timken Roller Bearing Co
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 Timken Roller Bearing Co filed Critical Timken Roller Bearing Co
Publication of GB481483A publication Critical patent/GB481483A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/06—Rolling hollow basic material, e.g. Assel mills
    • B21B19/10—Finishing, e.g. smoothing, sizing, reeling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)

Abstract

481,483. Rolling tubes. TIMKEN ROLLER BEARING CO. Aug. 9, 1937, No. 21910. Convention date, Aug. 19, 1936. [Class 83 (iv)] Skew rolling; working at specifed temperature.-In reducing a pre-formed tube without a mandrel in a skew rolling continuous mill the rolls form a pass which converges at such a small angle that the frictional resistance to longitudinal flow of the metal is greater than the resistance to radial flow so that the external diameter is reduced without substantial elongation. The excess metal goes to thickening the tube walls. Fig. 3 shows one shape of roll provided with a low shoulder B forming a convex zone, and preceded by a conical zone C of small taper and on the other side of B is a cylindrical zone A and a conical zone E. The relative dimensions and angles of the roll surfaces are specified. Other shapes of rolls are shown without shoulders, i.e. barrel or conical shaped or flat conical disc-like rolls, Fig. 7, or a combination of one roll of each type as in Fig. 8. The metal may be worked at 1400-1600‹ F.
GB21910/37A 1936-08-19 1937-08-09 An improved method of and apparatus for sizing tubes Expired GB481483A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US96745A US2176412A (en) 1936-08-19 1936-08-19 Method and apparatus for sizing tubes

Publications (1)

Publication Number Publication Date
GB481483A true GB481483A (en) 1938-03-11

Family

ID=22258882

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21910/37A Expired GB481483A (en) 1936-08-19 1937-08-09 An improved method of and apparatus for sizing tubes

Country Status (2)

Country Link
US (1) US2176412A (en)
GB (1) GB481483A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1271064B (en) * 1963-08-21 1968-06-27 Contubind Sa Angled rolling mill with overhung rolls, each mounted in a stand

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3260099A (en) * 1964-07-28 1966-07-12 Frank E Elge Tube forming machine
SE329584B (en) * 1966-06-16 1970-10-19 Skf Svenska Kullagerfab Ab
NL7903234A (en) * 1979-04-24 1980-10-28 Noord Ver Metaal METHOD AND APPARATUS FOR ROLLING TUBE TO A SMALLER DIAMETER
FR2455927A1 (en) * 1979-05-07 1980-12-05 Vallourec Seamless tubes with large dia.-wall thickness ratio - made on continuous rolling line which includes tube expanding unit
DE19613715C1 (en) * 1996-03-27 1997-07-24 Mannesmann Ag Calibration of slant rolling mill
DE19725314C1 (en) * 1997-06-09 1998-09-24 Mannesmann Ag Skew-rolling mill for elongation of seamless hollow blank heated to forming temperature
CN103521521B (en) * 2013-10-17 2015-11-18 太原科技大学 A kind of recessed roll-type tubing oblique milling stretch reducing process
WO2019089712A1 (en) * 2017-10-31 2019-05-09 Trinity Bay Equipment Holdings, LLC System and method for heating and re-rounding spoolable pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1271064B (en) * 1963-08-21 1968-06-27 Contubind Sa Angled rolling mill with overhung rolls, each mounted in a stand

Also Published As

Publication number Publication date
US2176412A (en) 1939-10-17

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