GB1274698A - Method and apparatus for stretch reducing - Google Patents

Method and apparatus for stretch reducing

Info

Publication number
GB1274698A
GB1274698A GB60846/69A GB6084669A GB1274698A GB 1274698 A GB1274698 A GB 1274698A GB 60846/69 A GB60846/69 A GB 60846/69A GB 6084669 A GB6084669 A GB 6084669A GB 1274698 A GB1274698 A GB 1274698A
Authority
GB
United Kingdom
Prior art keywords
rolling
workpiece
mill
whose
decreased
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
GB60846/69A
Other languages
English (en)
Inventor
Haruo Kamimura
Kanzi Tsuruoka
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.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
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 Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Priority to GB60846/69A priority Critical patent/GB1274698A/en
Priority to FR6943120A priority patent/FR2070965A5/fr
Priority to DE19691962792 priority patent/DE1962792A1/de
Publication of GB1274698A publication Critical patent/GB1274698A/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
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/02—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills
    • B21B35/025—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills for stretch-reducing of tubes
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
    • H02P5/50—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing electrical values representing the speeds
    • H02P5/51—Direct ratio control
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/68—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more DC dynamo-electric motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Control Of Metal Rolling (AREA)
GB60846/69A 1969-12-12 1969-12-12 Method and apparatus for stretch reducing Expired GB1274698A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB60846/69A GB1274698A (en) 1969-12-12 1969-12-12 Method and apparatus for stretch reducing
FR6943120A FR2070965A5 (enExample) 1969-12-12 1969-12-12
DE19691962792 DE1962792A1 (de) 1969-12-12 1969-12-15 Verfahren und Vorrichtung zum Quetsch- bzw. Reduzierwalzen

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB60846/69A GB1274698A (en) 1969-12-12 1969-12-12 Method and apparatus for stretch reducing
FR6943120A FR2070965A5 (enExample) 1969-12-12 1969-12-12
DE19691962792 DE1962792A1 (de) 1969-12-12 1969-12-15 Verfahren und Vorrichtung zum Quetsch- bzw. Reduzierwalzen

Publications (1)

Publication Number Publication Date
GB1274698A true GB1274698A (en) 1972-05-17

Family

ID=27182286

Family Applications (1)

Application Number Title Priority Date Filing Date
GB60846/69A Expired GB1274698A (en) 1969-12-12 1969-12-12 Method and apparatus for stretch reducing

Country Status (3)

Country Link
DE (1) DE1962792A1 (enExample)
FR (1) FR2070965A5 (enExample)
GB (1) GB1274698A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4984444A (en) * 1989-04-26 1991-01-15 Franceschina Louis E Method of reducing tubular products

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2347891C2 (de) * 1973-09-24 1983-04-21 Kocks Technik Gmbh & Co, 4010 Hilden Walzstraße zum Streckreduzieren von Rohren
US4002048A (en) * 1975-12-19 1977-01-11 Aetna-Standard Engineering Company Method of stretch reducing of tubular stock
DE3028211C2 (de) * 1980-07-25 1986-10-16 Kocks Technik Gmbh & Co, 4010 Hilden Walzstraße zum Streckreduzieren von Rohren
DE102017220750A1 (de) 2017-11-21 2019-05-23 Sms Group Gmbh Vorrichtung zur Steuerung eines Streckreduzierwalzwerks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4984444A (en) * 1989-04-26 1991-01-15 Franceschina Louis E Method of reducing tubular products

Also Published As

Publication number Publication date
DE1962792A1 (de) 1971-06-24
FR2070965A5 (enExample) 1971-09-17

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Legal Events

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