JPS57152308A - Controlling method of screw-down of plug type rolling mill - Google Patents

Controlling method of screw-down of plug type rolling mill

Info

Publication number
JPS57152308A
JPS57152308A JP56037417A JP3741781A JPS57152308A JP S57152308 A JPS57152308 A JP S57152308A JP 56037417 A JP56037417 A JP 56037417A JP 3741781 A JP3741781 A JP 3741781A JP S57152308 A JPS57152308 A JP S57152308A
Authority
JP
Japan
Prior art keywords
plug
rolling
screw
measure
rolling 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.)
Pending
Application number
JP56037417A
Other languages
Japanese (ja)
Inventor
Hideo Abe
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 Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP56037417A priority Critical patent/JPS57152308A/en
Publication of JPS57152308A publication Critical patent/JPS57152308A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
    • B21B25/06—Interchanging mandrels, fixing plugs on mandrel rods or cooling during interchanging mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B28/00—Maintaining rolls or rolling equipment in effective condition
    • B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning

Abstract

PURPOSE:To improve a controlling accuracy of rolling, especially a dimensional accuracy of the 1st pipe of a lot, by performing the calculation of screw-down setting using with actually measured values resulted from actual measuring of the fluctuation of the outer diameter of a plug, during rolling. CONSTITUTION:A pair of plug-rotating rollers 12 are provided to a plug measuring device 22 to measure the outer diameters of a plug from the plural measuring positions by rotating the plug 3 around its axis in a V-shaped slot 21 by means of the rollers 12. Further at the same time, the outer surface of the plug 3 is cleaned by a scale breaker 13 equipped with a brush, etc. to measure the outer dia. accurately. The plug 3 contained in the slot 21 drops by its own- weight into a V-shaped trough 14 located underside of a pass line by a rotation of a drum 32, and is fitted to a plug bar 8 to be inserted into between upper and lower rolls 27. Expanding and elongating of a blank pipe by rolling are performed by using said plug and rolling rolls.
JP56037417A 1981-03-16 1981-03-16 Controlling method of screw-down of plug type rolling mill Pending JPS57152308A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56037417A JPS57152308A (en) 1981-03-16 1981-03-16 Controlling method of screw-down of plug type rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56037417A JPS57152308A (en) 1981-03-16 1981-03-16 Controlling method of screw-down of plug type rolling mill

Publications (1)

Publication Number Publication Date
JPS57152308A true JPS57152308A (en) 1982-09-20

Family

ID=12496939

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56037417A Pending JPS57152308A (en) 1981-03-16 1981-03-16 Controlling method of screw-down of plug type rolling mill

Country Status (1)

Country Link
JP (1) JPS57152308A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0698426A1 (en) * 1994-08-18 1996-02-28 MANNESMANN Aktiengesellschaft Mandrel changer for plug-mills
CN105312328A (en) * 2014-07-31 2016-02-10 上海梅山钢铁股份有限公司 Mounting device, mounting method and dismounting method of loop angle encoder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0698426A1 (en) * 1994-08-18 1996-02-28 MANNESMANN Aktiengesellschaft Mandrel changer for plug-mills
CN105312328A (en) * 2014-07-31 2016-02-10 上海梅山钢铁股份有限公司 Mounting device, mounting method and dismounting method of loop angle encoder
CN105312328B (en) * 2014-07-31 2018-08-21 上海梅山钢铁股份有限公司 A kind of mounting device, installation method, the method for dismounting of kink angular encoder

Similar Documents

Publication Publication Date Title
ES439367A1 (en) Method and apparatus for monitoring pass alignment in rolling mills
EP0315043A3 (en) Method for measuring roll-force in rolling mills
JPS57152308A (en) Controlling method of screw-down of plug type rolling mill
JPS5588910A (en) Controlling method for rolling work for pipe
JPS541264A (en) Method of and apparatus for rolling wire material
JPS5722809A (en) Method for controlling rolling of pipe
JPS5764407A (en) Controlling method for reeler for processing seamless steel pipe
JPS57115907A (en) Method for controlling rolling of inclined roll piercing machine
JPS6453712A (en) Measuring method for camber shape and meandering magnitude of metallic plate during rolling
Degner et al. Topometric on-line flatness measuring system for hot strip
JPS5744411A (en) Controlling method for outer diameter of pipe in pipe sizing machine
SU445487A1 (en) The method of removing rolled irregular lengths during transportation
JPS5510316A (en) Side guide gap setting method
JPS57141506A (en) Measuring method for diameter of rotating cylinder
JPS55128304A (en) Rolling mill with surface flaw detector of roll
Zhao et al. Numerical control pressing system of tapered parts mill
JPS56139229A (en) Method for measuring lateral bend of material to be rolled
JPS5666311A (en) Controlling method for rolling work
JPH0227043B2 (en)
JPS5686606A (en) Recycling plug feeder for mannesmann plug mill
Wu et al. Intelligent microtension control system of the continuous section steel rolling mill
JPS5324873A (en) Measur ement of forward percentage of rolling
JPS57149012A (en) Controlling device for piercing machine
JPS57193203A (en) Rolling method for h-steel
JPS5465151A (en) Settng method for piercing mill