GB1554753A - Press roll piercing method - Google Patents

Press roll piercing method

Info

Publication number
GB1554753A
GB1554753A GB3457676A GB3457676A GB1554753A GB 1554753 A GB1554753 A GB 1554753A GB 3457676 A GB3457676 A GB 3457676A GB 3457676 A GB3457676 A GB 3457676A GB 1554753 A GB1554753 A GB 1554753A
Authority
GB
United Kingdom
Prior art keywords
press roll
piercing method
roll piercing
press
roll
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
GB3457676A
Other languages
English (en)
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
Publication of GB1554753A publication Critical patent/GB1554753A/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)
GB3457676A 1975-08-22 1976-08-19 Press roll piercing method Expired GB1554753A (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
GB1554753A true GB1554753A (en) 1979-10-31

Family

ID=14324973

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3457676A Expired GB1554753A (en) 1975-08-22 1976-08-19 Press roll piercing method

Country Status (9)

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

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 (ja) * 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 (ja) 1981-01-23
BR7605525A (pt) 1977-08-09
DE2637542A1 (de) 1977-02-24
FR2321340B1 (ja) 1979-01-12
CA1046308A (en) 1979-01-16
RO71124A (ro) 1981-11-04
IT1062264B (it) 1984-02-01

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Legal Events

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