JPS5722806A - Piercing installation for seamless steel pipe - Google Patents

Piercing installation for seamless steel pipe

Info

Publication number
JPS5722806A
JPS5722806A JP9574080A JP9574080A JPS5722806A JP S5722806 A JPS5722806 A JP S5722806A JP 9574080 A JP9574080 A JP 9574080A JP 9574080 A JP9574080 A JP 9574080A JP S5722806 A JPS5722806 A JP S5722806A
Authority
JP
Japan
Prior art keywords
pipe
bar
piercing
stoppers
sized
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
JP9574080A
Other languages
Japanese (ja)
Other versions
JPS5947604B2 (en
Inventor
Masaru Arai
Katsutoshi Noda
Tsuneo Ochiai
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.)
Hitachi Ltd
Nippon Steel Corp
Original Assignee
Hitachi Ltd
Nippon 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 Hitachi Ltd, Nippon Steel Corp filed Critical Hitachi Ltd
Priority to JP9574080A priority Critical patent/JPS5947604B2/en
Publication of JPS5722806A publication Critical patent/JPS5722806A/en
Publication of JPS5947604B2 publication Critical patent/JPS5947604B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Accessories And Tools For Shearing Machines (AREA)

Abstract

PURPOSE: To improve the production efficiency of the titled installation by providing a suitable number of movable stoppers which detain a hollow blank pipe and draw a plug bar removably to the down stream side pass line in piercing positions.
CONSTITUTION: After a plug bar 7 is set in a prescribed position, a solid member 12 is pushed by a pusher 2 and while it is being rolled with a rolling mill 1, it is pierced, thereby forming a hollow blank pipe 11. As the piercing of the pipe 11 progresses, plug bar holding rollers 9 are successively oscillated and opened so as not to interfere with the pipe 11 which is being fed. If the pipe 11 is short sized, the movable stoppers in a stopper mounting part 20A are mounted to the pass line and if it is middle sized, those in a mounting part 20B are mounted thereto. If it is long sized, stationary stoppers 10 are used. Upon completion of the piercing work latches 8 are opened and the bar 7 and the pipe 11 are retreated in the state of one body, thence with the pipe 11 held detained by the suitable stoppers, the bar 7 is completely removed from the pipe 11. In this way, the moving time of the bar 7 is shortened and the production efficiency is improved.
COPYRIGHT: (C)1982,JPO&Japio
JP9574080A 1980-07-15 1980-07-15 Seamless steel pipe drilling equipment Expired JPS5947604B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9574080A JPS5947604B2 (en) 1980-07-15 1980-07-15 Seamless steel pipe drilling equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9574080A JPS5947604B2 (en) 1980-07-15 1980-07-15 Seamless steel pipe drilling equipment

Publications (2)

Publication Number Publication Date
JPS5722806A true JPS5722806A (en) 1982-02-05
JPS5947604B2 JPS5947604B2 (en) 1984-11-20

Family

ID=14145879

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9574080A Expired JPS5947604B2 (en) 1980-07-15 1980-07-15 Seamless steel pipe drilling equipment

Country Status (1)

Country Link
JP (1) JPS5947604B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06286719A (en) * 1991-05-06 1994-10-11 Tee Pak Inc Effective strand package

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06286719A (en) * 1991-05-06 1994-10-11 Tee Pak Inc Effective strand package

Also Published As

Publication number Publication date
JPS5947604B2 (en) 1984-11-20

Similar Documents

Publication Publication Date Title
JPS5434372A (en) Parison-transferring process and equipment for the same
JPS577337A (en) Progressive pressing device of short sized material
ES418268A1 (en) Process and installation for producing metal tubes without welding
JPS5226313A (en) Manufacturing process of cold roled steel sheets of low yielding point by continuous annealing
JPS5722806A (en) Piercing installation for seamless steel pipe
GB1532136A (en) Shell pusher for plug mill
JPS5466365A (en) Piercing method for pipe material
JPS561201A (en) Rapid rolling method
ATE15979T1 (en) METHOD AND DEVICE FOR PRODUCTION OF TUBES IN A COLD ROLLING MILL.
JPS51117904A (en) A method for collecting gas generated in metal winning by the wet elec trolytic process
JPS5636312A (en) Feeding apparatus for indentation mill
JPS5728611A (en) Strip feeder
JPS53149858A (en) Controlling method for wall thickness of seamless pipe in rolling mill
JPS51138984A (en) A metal mold holder for a punch press
JPS5484674A (en) Mispunching prevention device
GB1345448A (en) Apparatus for feeding cold pilger rolling mills
JPS5259471A (en) Method of and apparatus for separating parts
JPS5217291A (en) Process and equipment for cutting the work roll of a roller
JPS56134104A (en) Work feeder for multispindle automatic lathe
GB1205662A (en) Device for loading and unloading workpiece supporting mandrels
BG96250A (en) METHOD AND DEVICE FOR PRE-DRILLING INTERMEDIATE BLOCK INGREDIENTS-BLOOMS
JPS51142152A (en) Cleaning method of evaporation apparatus
DE1017576B (en) Device for feeding cold pilger mills
JPS55120405A (en) Rolling method for seamless steel pipe
JPS51148877A (en) Method and apparatus for feed tr ansfer in cutting for removal of scratch of round bar