Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
  • B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
  • B23K33/004—Filling of continuous seams
  • B23K33/006—Filling of continuous seams for cylindrical workpieces
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
  • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
  • B21C37/06—Manufacture of metal sheets, bars, wire, tubes 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
  • B21C37/09—Making tubes with welded or soldered seams of coated strip material ; Making multi-wall tubes
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
  • F16L9/00—Rigid pipes
  • F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
  • F16L9/165—Rigid pipes wound from sheets or strips, with or without reinforcement of metal

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Rigid Pipes And Flexible Pipes (AREA)
• Butt Welding And Welding Of Specific Article (AREA)
• Metal Rolling (AREA)
• Arc Welding In General (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=6106464

Family Applications (1)

Country Status (10)

Families Citing this family (1)

• 1980
  • 1980-07-03 DE DE19803025483 patent/DE3025483A1/de not_active Withdrawn
• 1981
  • 1981-04-29 FR FR8108521A patent/FR2485958A1/fr not_active Withdrawn
  • 1981-05-08 SE SE8102896A patent/SE8102896L/ not_active Application Discontinuation
  • 1981-05-25 ZA ZA00813504A patent/ZA813504B/xx unknown
  • 1981-06-09 BR BR8103650A patent/BR8103650A/pt unknown
  • 1981-06-10 JP JP8939881A patent/JPS5731493A/ja active Pending
  • 1981-06-10 IT IT22233/81A patent/IT1137249B/it active
  • 1981-06-23 AU AU72088/81A patent/AU7208881A/en not_active Abandoned
  • 1981-07-02 ES ES503621A patent/ES8302253A1/es not_active Expired
  • 1981-07-03 GB GB8120622A patent/GB2079891A/en not_active Withdrawn

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