GB2238500A - Rolling mill and method - Google Patents

Rolling mill and method

Info

Publication number
GB2238500A
GB2238500A GB9100243A GB9100243A GB2238500A GB 2238500 A GB2238500 A GB 2238500A GB 9100243 A GB9100243 A GB 9100243A GB 9100243 A GB9100243 A GB 9100243A GB 2238500 A GB2238500 A GB 2238500A
Authority
GB
United Kingdom
Prior art keywords
rolls
tool
piercing
elongating
mill
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.)
Granted
Application number
GB9100243A
Other versions
GB9100243D0 (en
GB2238500B (en
Inventor
John Metcalfe
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB9100243D0 publication Critical patent/GB9100243D0/en
Publication of GB2238500A publication Critical patent/GB2238500A/en
Application granted granted Critical
Publication of GB2238500B publication Critical patent/GB2238500B/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
    • 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
    • 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
    • B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B2035/005—Hydraulic drive motors

Landscapes

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

Abstract

A cross-rolling mill comprising a plurality of workpiece engaging rolls (10, 11) defining between them a roll aperture through which a workpiece (23) passes during rolling, and a workpiece engaging tool (20) associated with said rolls, the mill being characterized by said tool (20) being a composite internal tool associated with said roll aperture and including a tapering piercing portion (21) and a substantially cylindrical elongating portion (22), means for moving said tool along the axis of the mill relative to the rolls to accommodate a piercing operation in which the piercing portion (21) of the tool (20) coacts with the rolls (10, 11) and an elongating operation in which the elongating portion (22) of the tool (22) coacts with the rolls (10, 11), and, means for reversing the direction in which the workpiece passes in use through said roll aperture so that piercing can take place in a first pass in one direction and elongation can take place in a second pass in the opposite direction, the profile of the rolls being such as to accommodate both piercing and elongating operations. Also disclosed are methods of operation and a mill employing opposed cone rolls. <IMAGE>
GB9100243A 1988-07-09 1991-01-07 Rolling mill Expired - Fee Related GB2238500B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888816390A GB8816390D0 (en) 1988-07-09 1988-07-09 Rolling mill & method
PCT/GB1989/000785 WO1990000448A1 (en) 1988-07-09 1989-07-10 Rolling mill and method

Publications (3)

Publication Number Publication Date
GB9100243D0 GB9100243D0 (en) 1991-02-27
GB2238500A true GB2238500A (en) 1991-06-05
GB2238500B GB2238500B (en) 1993-05-26

Family

ID=10640191

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888816390A Pending GB8816390D0 (en) 1988-07-09 1988-07-09 Rolling mill & method
GB9100243A Expired - Fee Related GB2238500B (en) 1988-07-09 1991-01-07 Rolling mill

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888816390A Pending GB8816390D0 (en) 1988-07-09 1988-07-09 Rolling mill & method

Country Status (3)

Country Link
AU (1) AU3981389A (en)
GB (2) GB8816390D0 (en)
WO (1) WO1990000448A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1298331B1 (en) * 1998-03-04 1999-12-20 Mannesmann Ag PROCEDURE FOR THE PRODUCTION OF PIPES WITHOUT WELDING
DE10334011B3 (en) * 2003-07-25 2004-08-12 Sms Meer Gmbh Rolling mill forming seamless steel tube, includes roller end sections to grip and carry the tube or its blank, and inner tool with blank-penetrating section at its end

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE260425C (en) *
US971512A (en) * 1909-01-29 1910-10-04 Wallace H Rowe Machine for piercing billets.
US1211070A (en) * 1916-02-21 1917-01-02 Richard E Brock Tube-reducing mill.
DE3717698A1 (en) * 1986-06-25 1988-01-14 Kocks Technik METHOD AND SYSTEM FOR PRODUCING SEAMLESS TUBES

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE260425C (en) *
DE259625C (en) *
US971512A (en) * 1909-01-29 1910-10-04 Wallace H Rowe Machine for piercing billets.
US1211070A (en) * 1916-02-21 1917-01-02 Richard E Brock Tube-reducing mill.
DE3717698A1 (en) * 1986-06-25 1988-01-14 Kocks Technik METHOD AND SYSTEM FOR PRODUCING SEAMLESS TUBES

Also Published As

Publication number Publication date
WO1990000448A1 (en) 1990-01-25
GB9100243D0 (en) 1991-02-27
GB8816390D0 (en) 1988-08-17
GB2238500B (en) 1993-05-26
AU3981389A (en) 1990-02-05

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030710