ES459075A1 - Perfeccionamientos en instalaciones para la produccion de tubos de acero partiendo de barras cuadradas. - Google Patents

Perfeccionamientos en instalaciones para la produccion de tubos de acero partiendo de barras cuadradas.

Info

Publication number
ES459075A1
ES459075A1 ES459075A ES459075A ES459075A1 ES 459075 A1 ES459075 A1 ES 459075A1 ES 459075 A ES459075 A ES 459075A ES 459075 A ES459075 A ES 459075A ES 459075 A1 ES459075 A1 ES 459075A1
Authority
ES
Spain
Prior art keywords
mill
billets
square
manufacturing process
steel pipe
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
ES459075A
Other languages
English (en)
Spanish (es)
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.)
SMS Group SpA
Original Assignee
Innocenti Santeustacchio SpA
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 Innocenti Santeustacchio SpA filed Critical Innocenti Santeustacchio SpA
Publication of ES459075A1 publication Critical patent/ES459075A1/es
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
    • B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
    • 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)
  • Metal Rolling (AREA)
ES459075A 1977-04-15 1977-05-24 Perfeccionamientos en instalaciones para la produccion de tubos de acero partiendo de barras cuadradas. Expired ES459075A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2250177A IT1114778B (it) 1977-04-15 1977-04-15 Impianto per la produzione di tubi di acciaio a partire da barre quadre

Publications (1)

Publication Number Publication Date
ES459075A1 true ES459075A1 (es) 1978-04-16

Family

ID=11197113

Family Applications (1)

Application Number Title Priority Date Filing Date
ES459075A Expired ES459075A1 (es) 1977-04-15 1977-05-24 Perfeccionamientos en instalaciones para la produccion de tubos de acero partiendo de barras cuadradas.

Country Status (4)

Country Link
JP (1) JPS53129153A (it)
DE (1) DE2749175A1 (it)
ES (1) ES459075A1 (it)
IT (1) IT1114778B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4318294A (en) * 1978-12-29 1982-03-09 Nippon Steel Corporation Method of manufacturing seamless metal pipes and tubes
BE890981A (fr) * 1981-11-04 1982-03-01 Meuse Tubes Usines Procede de fabrication de tubes sans soudure, installation pour sa mise en oeuvre et tubes sans soudure obtenus par le procede ou par ladite installation

Also Published As

Publication number Publication date
DE2749175A1 (de) 1978-10-19
JPS53129153A (en) 1978-11-10
IT1114778B (it) 1986-01-27

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19991102