IT1314350B1 - SMOKE SEALED FLEXIBLE HOSE, PERREALIZE EQUIPMENT AND PRODUCTION PROCESS - Google Patents

SMOKE SEALED FLEXIBLE HOSE, PERREALIZE EQUIPMENT AND PRODUCTION PROCESS

Info

Publication number
IT1314350B1
IT1314350B1 IT1999MI002753A ITMI992753A IT1314350B1 IT 1314350 B1 IT1314350 B1 IT 1314350B1 IT 1999MI002753 A IT1999MI002753 A IT 1999MI002753A IT MI992753 A ITMI992753 A IT MI992753A IT 1314350 B1 IT1314350 B1 IT 1314350B1
Authority
IT
Italy
Prior art keywords
strip
spiral
perrealize
equipment
production process
Prior art date
Application number
IT1999MI002753A
Other languages
Italian (it)
Inventor
Vittorio Travini
Livio Travini
Original Assignee
Olimpia 80 Srl
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 Olimpia 80 Srl filed Critical Olimpia 80 Srl
Priority to IT1999MI002753A priority Critical patent/IT1314350B1/en
Publication of ITMI992753A0 publication Critical patent/ITMI992753A0/en
Priority to EP00125604A priority patent/EP1112787B1/en
Priority to AT00125604T priority patent/ATE316829T1/en
Priority to DE60025790T priority patent/DE60025790T2/en
Priority to ES00125604T priority patent/ES2258436T3/en
Publication of ITMI992753A1 publication Critical patent/ITMI992753A1/en
Application granted granted Critical
Publication of IT1314350B1 publication Critical patent/IT1314350B1/en

Links

Classifications

    • 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
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • B21C37/122—Making tubes or metal hoses with helically arranged seams with welded or soldered seams

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Making Paper Articles (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

A gas-tight tube is formed starting from a strip of partially corrugated sheet metal with longitudinal corrugations, assembled in a spiral with overlapping edges and welded. The manufacturing process comprises winding the sheet metal strip upon itself in a spiral so that a corrugated portion of a strip length externally overlaps a flat portion of a previously wound strip length, and welding the overlapping portions to each other. The apparatus comprises a feeding device for feeding the corrugated strip, to a rotating mandrel with which pressure rollers collaborate to bend the strip in a spiral; downstream of the mandrel it comprises a welding device that welds the overlapping portions of the spiral of metal strip. <IMAGE>
IT1999MI002753A 1999-12-30 1999-12-30 SMOKE SEALED FLEXIBLE HOSE, PERREALIZE EQUIPMENT AND PRODUCTION PROCESS IT1314350B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT1999MI002753A IT1314350B1 (en) 1999-12-30 1999-12-30 SMOKE SEALED FLEXIBLE HOSE, PERREALIZE EQUIPMENT AND PRODUCTION PROCESS
EP00125604A EP1112787B1 (en) 1999-12-30 2000-11-22 Apparatus and manufacturing process for making a gas-tight flexible welded pipe
AT00125604T ATE316829T1 (en) 1999-12-30 2000-11-22 METHOD AND APPARATUS FOR PRODUCING A WELDED GAS-TIGHT AND FLEXIBLE PIPE
DE60025790T DE60025790T2 (en) 1999-12-30 2000-11-22 Method and device for producing a welded gastight and flexible tube
ES00125604T ES2258436T3 (en) 1999-12-30 2000-11-22 PROCEDURE AND MANUFACTURING DEVICE OF A FLEXIBLE TUBE WELDED SOLDIER TO GAS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1999MI002753A IT1314350B1 (en) 1999-12-30 1999-12-30 SMOKE SEALED FLEXIBLE HOSE, PERREALIZE EQUIPMENT AND PRODUCTION PROCESS

Publications (3)

Publication Number Publication Date
ITMI992753A0 ITMI992753A0 (en) 1999-12-30
ITMI992753A1 ITMI992753A1 (en) 2001-06-30
IT1314350B1 true IT1314350B1 (en) 2002-12-09

Family

ID=11384231

Family Applications (1)

Application Number Title Priority Date Filing Date
IT1999MI002753A IT1314350B1 (en) 1999-12-30 1999-12-30 SMOKE SEALED FLEXIBLE HOSE, PERREALIZE EQUIPMENT AND PRODUCTION PROCESS

Country Status (5)

Country Link
EP (1) EP1112787B1 (en)
AT (1) ATE316829T1 (en)
DE (1) DE60025790T2 (en)
ES (1) ES2258436T3 (en)
IT (1) IT1314350B1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB940888A (en) * 1961-01-26 1963-11-06 Rheinmetall Gmbh Method of manufacturing threaded spindles
US3721793A (en) * 1971-07-19 1973-03-20 Inst Elektroswarki Patona Spiral-seam weld pipe and tube mill
US3857159A (en) * 1973-09-27 1974-12-31 Pacific Roller Die Co Inc Pipe forming method
DE2645946C2 (en) * 1976-10-12 1982-08-19 Witzenmann GmbH, Metallschlauch-Fabrik Pforzheim, 7530 Pforzheim Multi-layer corrugated pipe for exhaust pipes of internal combustion engines
NL8702946A (en) * 1987-12-07 1989-07-03 Dec Holding Bv Mfg. thin-walled aluminium tube - which has smooth walls formed by stripp of flexible foil wound up on mandrel, possibly in overlapping parts, helically, or in continuous stri
AT394149B (en) * 1989-07-10 1992-02-10 Moldrich Metallwaren Gmbh METHOD FOR PRODUCING TUBES FROM A METAL STRIP

Also Published As

Publication number Publication date
ITMI992753A1 (en) 2001-06-30
EP1112787A3 (en) 2002-07-31
EP1112787A2 (en) 2001-07-04
ES2258436T3 (en) 2006-09-01
ATE316829T1 (en) 2006-02-15
EP1112787B1 (en) 2006-02-01
DE60025790T2 (en) 2006-11-02
DE60025790D1 (en) 2006-04-13
ITMI992753A0 (en) 1999-12-30

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