IT1242981B - CONTOUR OF THE CALIBER OF THE CYLINDERS OF A REDUCER OR REDUCER REDUCER - Google Patents

CONTOUR OF THE CALIBER OF THE CYLINDERS OF A REDUCER OR REDUCER REDUCER

Info

Publication number
IT1242981B
IT1242981B IT02096990A IT2096990A IT1242981B IT 1242981 B IT1242981 B IT 1242981B IT 02096990 A IT02096990 A IT 02096990A IT 2096990 A IT2096990 A IT 2096990A IT 1242981 B IT1242981 B IT 1242981B
Authority
IT
Italy
Prior art keywords
reducer
caliber
contour
cylinders
reducer reducer
Prior art date
Application number
IT02096990A
Other languages
Italian (it)
Other versions
IT9020969A1 (en
IT9020969A0 (en
Inventor
Hans-Joachin Pehle
Peter Thieven
Original Assignee
Mannesmann 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 Mannesmann Ag filed Critical Mannesmann Ag
Publication of IT9020969A0 publication Critical patent/IT9020969A0/en
Publication of IT9020969A1 publication Critical patent/IT9020969A1/en
Application granted granted Critical
Publication of IT1242981B publication Critical patent/IT1242981B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/14—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling without mandrel, e.g. stretch-reducing mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
IT02096990A 1989-07-20 1990-07-18 CONTOUR OF THE CALIBER OF THE CYLINDERS OF A REDUCER OR REDUCER REDUCER IT1242981B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3924261A DE3924261C2 (en) 1989-07-20 1989-07-20 Caliber contour of the rolls of a reducing or stretch-reducing mill

Publications (3)

Publication Number Publication Date
IT9020969A0 IT9020969A0 (en) 1990-07-18
IT9020969A1 IT9020969A1 (en) 1992-01-18
IT1242981B true IT1242981B (en) 1994-05-18

Family

ID=6385589

Family Applications (1)

Application Number Title Priority Date Filing Date
IT02096990A IT1242981B (en) 1989-07-20 1990-07-18 CONTOUR OF THE CALIBER OF THE CYLINDERS OF A REDUCER OR REDUCER REDUCER

Country Status (3)

Country Link
DE (1) DE3924261C2 (en)
FR (1) FR2649915A1 (en)
IT (1) IT1242981B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19758107A1 (en) * 1997-12-17 1999-06-24 Mannesmann Ag Multi-stand mandrelless stretch-reducing mill
CN1309495C (en) * 2002-09-10 2007-04-11 白忠泉 Inner press roller roll type outline matching screw tube blank
DE102005038574A1 (en) * 2005-08-12 2007-02-15 Kocks Technik Gmbh & Co. Kg Roll stand has three or more rollers in form of pulleys whose inner edges form caliber, each roller having peripheral groove with flat central section and outer edges at angle to it
CN102699032A (en) * 2012-06-01 2012-10-03 无锡西姆莱斯石油专用管制造有限公司 Process for machining seamless steel pipe with special drift diameter by using slight-stretch reducing mill

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1814238C2 (en) * 1968-12-12 1982-05-19 Kocks Technik GmbH & Co, 4000 Düsseldorf Roll calibration for fine iron, especially for wire rolling mills
DE2448158C3 (en) * 1974-10-07 1980-09-04 Mannesmannroehren-Werke Ag, 4000 Duesseldorf Roll calibration of a tube reducing mill aimed at reducing the formation of polygons inside the tube
SU973199A1 (en) * 1981-05-15 1982-11-15 Уральский научно-исследовательский институт трубной промышленности Production tool for longitudinal rolling of tubes
JPS6333105A (en) * 1986-07-25 1988-02-12 Nippon Steel Corp Cold sizing method for steel pipe

Also Published As

Publication number Publication date
IT9020969A1 (en) 1992-01-18
FR2649915A1 (en) 1991-01-25
DE3924261C2 (en) 1994-05-26
IT9020969A0 (en) 1990-07-18
DE3924261A1 (en) 1991-01-31

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Legal Events

Date Code Title Description
0001 Granted