IT1279635B1 - Fluid tight pipe joints - formed by inserting layers of flux and filler material between contacting pipe surfaces the induction welding using time variable magnetic field. - Google Patents

Fluid tight pipe joints - formed by inserting layers of flux and filler material between contacting pipe surfaces the induction welding using time variable magnetic field.

Info

Publication number
IT1279635B1
IT1279635B1 ITBO950440A IT1279635B1 IT 1279635 B1 IT1279635 B1 IT 1279635B1 IT BO950440 A ITBO950440 A IT BO950440A IT 1279635 B1 IT1279635 B1 IT 1279635B1
Authority
IT
Italy
Prior art keywords
flux
filler material
magnetic field
induction welding
fluid tight
Prior art date
Application number
Other languages
Italian (it)
Inventor
Mauro Pascolini
Original Assignee
I S C Ind Scambiatori Calore S
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 I S C Ind Scambiatori Calore S filed Critical I S C Ind Scambiatori Calore S
Priority to IT95BO000440 priority Critical patent/IT1279635B1/en
Publication of ITBO950440A0 publication Critical patent/ITBO950440A0/en
Priority to EP96115049A priority patent/EP0764493A1/en
Publication of ITBO950440A1 publication Critical patent/ITBO950440A1/en
Application granted granted Critical
Publication of IT1279635B1 publication Critical patent/IT1279635B1/en

Links

Landscapes

  • Butt Welding And Welding Of Specific Article (AREA)
  • Heat Treatment Of Articles (AREA)
  • Arc Welding In General (AREA)

Abstract

A fluid tight joint between two metal pipes, using induction welding techniques, is formed by:- (a) depositing a non-corrosive flux, on the inner and outer surfaces of the ends of the respective pipes to be joined, and inserting one pipe into the other, together with a filler material between the inner and outer contacting surfaces of the respective pipe ends; (b) subjecting the joint area to a magnetic field, varying with respective to time, and concentrated at the joint, in order to melt the flux and filler material by induction heating. Also claimed is a system for induction welding, two pipe ends, one partially inserted into the other, to form a fluid-tight joint between the pipes. A heat exchanger, having an inlet header, and an outlet header connected by a number of pipes, welded to the headers by the method and system claimed above is also claimed.
IT95BO000440 1995-09-20 1995-09-20 Fluid tight pipe joints - formed by inserting layers of flux and filler material between contacting pipe surfaces the induction welding using time variable magnetic field. IT1279635B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT95BO000440 IT1279635B1 (en) 1995-09-20 1995-09-20 Fluid tight pipe joints - formed by inserting layers of flux and filler material between contacting pipe surfaces the induction welding using time variable magnetic field.
EP96115049A EP0764493A1 (en) 1995-09-20 1996-09-19 Induction welding method and system for forming a fluidtight joint between metal pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT95BO000440 IT1279635B1 (en) 1995-09-20 1995-09-20 Fluid tight pipe joints - formed by inserting layers of flux and filler material between contacting pipe surfaces the induction welding using time variable magnetic field.

Publications (3)

Publication Number Publication Date
ITBO950440A0 ITBO950440A0 (en) 1995-09-20
ITBO950440A1 ITBO950440A1 (en) 1997-03-20
IT1279635B1 true IT1279635B1 (en) 1997-12-16

Family

ID=11340809

Family Applications (1)

Application Number Title Priority Date Filing Date
IT95BO000440 IT1279635B1 (en) 1995-09-20 1995-09-20 Fluid tight pipe joints - formed by inserting layers of flux and filler material between contacting pipe surfaces the induction welding using time variable magnetic field.

Country Status (1)

Country Link
IT (1) IT1279635B1 (en)

Also Published As

Publication number Publication date
ITBO950440A1 (en) 1997-03-20
ITBO950440A0 (en) 1995-09-20

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Legal Events

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0001 Granted