FR2208725B1 - - Google Patents

Info

Publication number
FR2208725B1
FR2208725B1 FR7339617A FR7339617A FR2208725B1 FR 2208725 B1 FR2208725 B1 FR 2208725B1 FR 7339617 A FR7339617 A FR 7339617A FR 7339617 A FR7339617 A FR 7339617A FR 2208725 B1 FR2208725 B1 FR 2208725B1
Authority
FR
France
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
FR7339617A
Other versions
FR2208725A1 (fr
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.)
Mannesmann Meer AG
Original Assignee
Mannesmann Meer 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 Meer AG filed Critical Mannesmann Meer AG
Publication of FR2208725A1 publication Critical patent/FR2208725A1/fr
Application granted granted Critical
Publication of FR2208725B1 publication Critical patent/FR2208725B1/fr
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
    • 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
    • B21B17/08—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel having one or more protrusions, i.e. only the mandrel plugs contact the rolled tube; Press-piercing mills
    • B21B17/10—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel having one or more protrusions, i.e. only the mandrel plugs contact the rolled tube; Press-piercing mills in a continuous process

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
FR7339617A 1972-12-01 1973-11-07 Expired FR2208725B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2259657A DE2259657A1 (de) 1972-12-01 1972-12-01 Verfahren und anlage zum auswalzen und glaetten von rohren in einem stopfenwalzwerk
US00394910A US3823594A (en) 1972-12-01 1973-09-06 Rolling of tubular blooms to produce tubes

Publications (2)

Publication Number Publication Date
FR2208725A1 FR2208725A1 (fr) 1974-06-28
FR2208725B1 true FR2208725B1 (fr) 1976-11-19

Family

ID=25764191

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7339617A Expired FR2208725B1 (fr) 1972-12-01 1973-11-07

Country Status (6)

Country Link
US (1) US3823594A (fr)
JP (1) JPS4988763A (fr)
CA (1) CA970601A (fr)
DE (1) DE2259657A1 (fr)
FR (1) FR2208725B1 (fr)
GB (1) GB1386034A (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US424213A (en) * 1890-03-25 Mandrel for rolling seamless tubes
US311477A (en) * 1885-02-03 And james a
GB351275A (en) * 1929-09-13 1931-06-25 Mannesmann Ag Improved method of rolling tubes on plug rolling mills

Also Published As

Publication number Publication date
JPS4988763A (fr) 1974-08-24
FR2208725A1 (fr) 1974-06-28
US3823594A (en) 1974-07-16
GB1386034A (en) 1975-03-05
CA970601A (en) 1975-07-08
DE2259657A1 (de) 1974-06-06

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Legal Events

Date Code Title Description
ST Notification of lapse