JPS57177828A - Initial setting and setting correcting method for gap between fin pass rolls of electric welded steel pipe - Google Patents

Initial setting and setting correcting method for gap between fin pass rolls of electric welded steel pipe

Info

Publication number
JPS57177828A
JPS57177828A JP6159181A JP6159181A JPS57177828A JP S57177828 A JPS57177828 A JP S57177828A JP 6159181 A JP6159181 A JP 6159181A JP 6159181 A JP6159181 A JP 6159181A JP S57177828 A JPS57177828 A JP S57177828A
Authority
JP
Japan
Prior art keywords
fin pass
pfi
gap
roll gap
setting
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
JP6159181A
Other languages
Japanese (ja)
Other versions
JPS6036348B2 (en
Inventor
Takaaki Toyooka
Eiichi Yokoyama
Akio Ejima
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 JP6159181A priority Critical patent/JPS6036348B2/en
Publication of JPS57177828A publication Critical patent/JPS57177828A/en
Publication of JPS6036348B2 publication Critical patent/JPS6036348B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

PURPOSE:To improve producibility and material yield by finding the rollgap applied correction amount by the spring back of a fin pass stand from an estimated formation load, and then initially setting a roll gap. CONSTITUTION:When the size of a welded pipe or the strength of its material is varied with regard to fin pass rolls for an electric welded steel pipe which forms and finishes a beltlike plate into a blank pipe, the formation load PFi of each fin pass stand is estimated by using a formation load estimating model selected while the amount of reduction of area of the blank pipe and its downhill amount are considered. From this estimated formation load PFi, an roll-gap applied correction amount PFi/M(M; mill rigidity) by the spring back of the fin pass stand is found and the roll gap initially set value Gi* of each fin pass stand is determined by an equation shwon herafter. Namely, Gi*=Gi- PFi/M (Gi; desired roll gap value). Consequently, the roll gap is set initially in a short time without measuring peripheral length.
JP6159181A 1981-04-23 1981-04-23 Initial roll gap setting method and roll gap setting correction method for fin pass rolls of ERW steel pipes Expired JPS6036348B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6159181A JPS6036348B2 (en) 1981-04-23 1981-04-23 Initial roll gap setting method and roll gap setting correction method for fin pass rolls of ERW steel pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6159181A JPS6036348B2 (en) 1981-04-23 1981-04-23 Initial roll gap setting method and roll gap setting correction method for fin pass rolls of ERW steel pipes

Publications (2)

Publication Number Publication Date
JPS57177828A true JPS57177828A (en) 1982-11-01
JPS6036348B2 JPS6036348B2 (en) 1985-08-20

Family

ID=13175538

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6159181A Expired JPS6036348B2 (en) 1981-04-23 1981-04-23 Initial roll gap setting method and roll gap setting correction method for fin pass rolls of ERW steel pipes

Country Status (1)

Country Link
JP (1) JPS6036348B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS603984A (en) * 1983-06-20 1985-01-10 Nippon Pipe Seizo Kk Seam guiding device of device for producing electric welded pipe
JP2021194698A (en) * 2020-06-18 2021-12-27 Ｊｆｅスチール株式会社 Apparatus and method for manufacturing electric resistance welded pipe

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6325654U (en) * 1986-08-05 1988-02-19
WO2018229858A1 (en) 2017-06-13 2018-12-20 日産自動車株式会社 Method for controlling noncontact electric power supply system, and noncontact electric power supply system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS603984A (en) * 1983-06-20 1985-01-10 Nippon Pipe Seizo Kk Seam guiding device of device for producing electric welded pipe
JP2021194698A (en) * 2020-06-18 2021-12-27 Ｊｆｅスチール株式会社 Apparatus and method for manufacturing electric resistance welded pipe

Also Published As

Publication number Publication date
JPS6036348B2 (en) 1985-08-20

Similar Documents

Publication Publication Date Title
JPS57109512A (en) Rolling method
JPS57177828A (en) Initial setting and setting correcting method for gap between fin pass rolls of electric welded steel pipe
JPH0147241B2 (en)
JPS5557301A (en) Production of thick steel plate
JPS5680311A (en) Controlling method for rolling mill
JPS55120408A (en) Controlling method for shape in six-stage rolling mill
JPS57168703A (en) Roll changing method for rolling mill
JPS56144813A (en) Controlling method for thickness of tail end of strip
Hiruta et al. Development of advanced transverse thickness profile control of thin hard steel strips at tandem cold rolling mill
JPS57127518A (en) Plate thickness controlling device for tandem rolling mill
JPS57146407A (en) Rolling method for thick plate
JPS5420942A (en) Controlling method for tension in tandem rolling mill
JPS5890308A (en) Method and device for controlling shape of rolled material
Nikolaev The Influence of Roll Contouring in a Slabbing Mill on the Rolling Process Parameters
JPS5794429A (en) Adjusting method for width of steel plate
JPS5714403A (en) Preventing method for plate width fluctuation of roughly rolled material
JPS57209710A (en) Plate thickness controlling method
JPS56168902A (en) Manufacture of pipe having nonuniform wall thickness along longitudinal direction
JPS55122601A (en) Blooming method for raw steel shape
JPS57181702A (en) Continuous cold rolling method that entails roll changing
JPS5630004A (en) Rolling method for sheet pile
JPS59107701A (en) Setting method of draft in dull rolling
JPS5428766A (en) Method of straightening flatness of hot rolled coils
JPS5719101A (en) Finish universal rolling method of sheet pile
JPS5750207A (en) Controlling method for timing control in controlling roll bending