Paper Information

Title: 

THE EFFECT OF RESIDUAL MAGNETIC FIELD ON OIL AND GAS PIPELINE WELDING AND THE WAYS TO REMOVE OR REDUCE IT

Type: PAPER
Author(s): TASHTZAR AZADEH,NAGHIZADEH MEHDI*
 
 *SOUTH ZAGROS OIL AND GAS PRODUCTION COMPANY
 
Name of Seminar: INTERNATIONAL CONFERENCE OIL, GAS, PETROCHEMICAL AND POWER PLANT
Type of Seminar:  CONFERENCE
Sponsor:  SHERKATE TAVONI AMOZESHI PAZHOHESHI VESTA
Date:  2012Volume 1
 
 
Abstract: 

OIL AND GAS PIPELINES ARE COMMONLY REPAIRED BY USING ONE OF SEVERAL DIFFERENT ARC WELDING PROCESSES. THIS TYPE OF WORK IS ROUTINE, TAKES PLACE EVERY DAY. OFFICIOUS MAGNETIC IS ONE OF THE MAJOR PROBLEMS IN PIPE WELDING THAT CAN CAUSE THE ARC BLOW. IN MANY CASES THE ARC BLOW CAN RESULTS IN WELD DEFECTS SUCH AS UNDERCUTTING, LACK OF FUSION AND EVEN THE SPATTERING IN WELD. MAGNETIC ARC BLOW CAN BE A SERIOUS ISSUE WITH PIPE WELDING JOBS. THIS ARTICLE LOOKS AT THE PHENOMENON OF MAGNETIC ARC BLOW, ITS CAUSES AND HOW TO OVERCOME IT.

 
Keyword(s): PIPELINE, RESIDUAL MAGNETIC FIELD, WELDING, ELECTRODE, ARC BLOW
 
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