FR2434658A1 - Continuous tube weld and stretch reducing mill - with specified arcs for reducing mill roll passes - Google Patents

Continuous tube weld and stretch reducing mill - with specified arcs for reducing mill roll passes

Info

Publication number
FR2434658A1
FR2434658A1 FR7824801A FR7824801A FR2434658A1 FR 2434658 A1 FR2434658 A1 FR 2434658A1 FR 7824801 A FR7824801 A FR 7824801A FR 7824801 A FR7824801 A FR 7824801A FR 2434658 A1 FR2434658 A1 FR 2434658A1
Authority
FR
France
Prior art keywords
arcs
reducing mill
specified
continuous tube
roll passes
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
FR7824801A
Other languages
French (fr)
Other versions
FR2434658B1 (en
Inventor
Jury Viktorinovich Samaryanov
Jury Abramovich Mednikov
Alexandr Semenovich Rozen
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.)
URAL I TRUBNOI PROMYS
Original Assignee
URAL I TRUBNOI PROMYS
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 URAL I TRUBNOI PROMYS filed Critical URAL I TRUBNOI PROMYS
Priority to FR7824801A priority Critical patent/FR2434658A1/en
Publication of FR2434658A1 publication Critical patent/FR2434658A1/en
Application granted granted Critical
Publication of FR2434658B1 publication Critical patent/FR2434658B1/fr
Granted legal-status Critical Current

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
    • 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
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0807—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off

Landscapes

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

Abstract

A continuous weld and stretch reducing mill is assembled from alternating pairs of vertical and horizontal grooved rolls. The working surface of all rolls is formed by conjugate arcs of >=2 radii. >=1 Of the arcs has the same radius as that of the welding roll pass; the crowns of the arcs of the same radius lie in the same plane which passes through the longitudinal axis of the rolling mill. This results in a higher strength of the welded seam and in a higher precision of the tubes.
FR7824801A 1978-08-28 1978-08-28 Continuous tube weld and stretch reducing mill - with specified arcs for reducing mill roll passes Granted FR2434658A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7824801A FR2434658A1 (en) 1978-08-28 1978-08-28 Continuous tube weld and stretch reducing mill - with specified arcs for reducing mill roll passes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7824801A FR2434658A1 (en) 1978-08-28 1978-08-28 Continuous tube weld and stretch reducing mill - with specified arcs for reducing mill roll passes

Publications (2)

Publication Number Publication Date
FR2434658A1 true FR2434658A1 (en) 1980-03-28
FR2434658B1 FR2434658B1 (en) 1982-12-03

Family

ID=9212120

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7824801A Granted FR2434658A1 (en) 1978-08-28 1978-08-28 Continuous tube weld and stretch reducing mill - with specified arcs for reducing mill roll passes

Country Status (1)

Country Link
FR (1) FR2434658A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE562279C (en) * 1928-02-01 1932-10-24 Mathilde Willutzky Geb Risse Device for post-treatment of the weld seam of welded pipes
FR1065278A (en) * 1951-06-15 1954-05-21 Gen Motors Corp Improved method and apparatus for the manufacture of metal tubes
US3520165A (en) * 1967-10-27 1970-07-14 Clayton Mark & Co Method of treating welded tubing
US3590622A (en) * 1968-12-18 1971-07-06 Ernest N Calhoun Apparatus for making tubing
DE2354163A1 (en) * 1973-10-29 1975-04-30 Willi Oppermann Machine for forming of seam welded tube - uses pair of rollers to produce range of tube sizes
DE2458855B1 (en) * 1974-12-10 1976-08-12 Mannesmann Roehren Werke Ag Device for the production of thin-walled longitudinally welded pipes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE562279C (en) * 1928-02-01 1932-10-24 Mathilde Willutzky Geb Risse Device for post-treatment of the weld seam of welded pipes
FR1065278A (en) * 1951-06-15 1954-05-21 Gen Motors Corp Improved method and apparatus for the manufacture of metal tubes
US3520165A (en) * 1967-10-27 1970-07-14 Clayton Mark & Co Method of treating welded tubing
US3590622A (en) * 1968-12-18 1971-07-06 Ernest N Calhoun Apparatus for making tubing
DE2354163A1 (en) * 1973-10-29 1975-04-30 Willi Oppermann Machine for forming of seam welded tube - uses pair of rollers to produce range of tube sizes
DE2458855B1 (en) * 1974-12-10 1976-08-12 Mannesmann Roehren Werke Ag Device for the production of thin-walled longitudinally welded pipes

Also Published As

Publication number Publication date
FR2434658B1 (en) 1982-12-03

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Legal Events

Date Code Title Description
ST Notification of lapse