The Improvement of Heat Treatment in High Pressure Pipe Bends using High Frequency Induction Heating

Abstract

The bend parts of high pressure pipings by using high frequency induction heating are to be heat treated for stress relieving in compliance with many application standard, the requirements of the rules and regulations of classification societies and the power plant engineering standard for example.
The new bending technique was developed in order to do away with heat treatment of the bend parts of steel pipings, which are satisfactory and adequate in mechanical property and change in wall thickness and shape of the bend parts.