RESEARCH INTO METHODS OF PIPE END DEMAGNETIZATION UNDER MAIN PIPELINE REPAIR

• Date: 2014
• Main Author: Dobrodeyev, P. N.
• Format: Article
• Language: Russian
• Published: National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine 2014
• Subjects: main pipelines; arc welding; demagnetization; efficiency; stability; 537.624.7
• Online Access: http://eie.khpi.edu.ua/article/view/2074-272X.2014.3.10
• Journal Title: Electrical Engineering & Electromechanics

Efficiency of pipe end demagnetization methods is experimentally investigated to avoid arc magnetism at repair welding jobs on main pipelines. It is found that multi-polar biased static and dynamic demagnetization provides an acceptable level of magnetic flux density on pipe ends and stability of th...