CA1046308A - Press roll piercing method - Google Patents

Press roll piercing method

Info

Publication number
CA1046308A
CA1046308A CA259,594A CA259594A CA1046308A CA 1046308 A CA1046308 A CA 1046308A CA 259594 A CA259594 A CA 259594A CA 1046308 A CA1046308 A CA 1046308A
Authority
CA
Canada
Prior art keywords
rolls
speed
billet
pushing
piercing
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
CA259,594A
Other languages
English (en)
French (fr)
Inventor
Seishiro Yoshiwara
Samon Yanagimoto
Minoru Kawaharada
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.)
Nippon Steel Corp
Original Assignee
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Application granted granted Critical
Publication of CA1046308A publication Critical patent/CA1046308A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Forging (AREA)
CA259,594A 1975-08-22 1976-08-20 Press roll piercing method Expired CA1046308A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50102348A JPS5224970A (en) 1975-08-22 1975-08-22 Method of press roll boring

Publications (1)

Publication Number Publication Date
CA1046308A true CA1046308A (en) 1979-01-16

Family

ID=14324973

Family Applications (1)

Application Number Title Priority Date Filing Date
CA259,594A Expired CA1046308A (en) 1975-08-22 1976-08-20 Press roll piercing method

Country Status (9)

Country Link
JP (1) JPS5224970A (it)
BR (1) BR7605525A (it)
CA (1) CA1046308A (it)
DE (1) DE2637542A1 (it)
FR (1) FR2321340A1 (it)
GB (1) GB1554753A (it)
IT (1) IT1062264B (it)
RO (1) RO71124A (it)
SU (1) SU1022652A3 (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53132453A (en) * 1977-04-25 1978-11-18 Sumitomo Metal Ind Ltd Piercing method in press piercing mill
JPS6289110U (it) * 1985-11-25 1987-06-08

Also Published As

Publication number Publication date
SU1022652A3 (ru) 1983-06-07
JPS5224970A (en) 1977-02-24
FR2321340A1 (fr) 1977-03-18
JPS563124B2 (it) 1981-01-23
BR7605525A (pt) 1977-08-09
DE2637542A1 (de) 1977-02-24
GB1554753A (en) 1979-10-31
FR2321340B1 (it) 1979-01-12
RO71124A (ro) 1981-11-04
IT1062264B (it) 1984-02-01

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