Development and qualification of welding procedures & inspection methodology for in-service welding

摘要

In-service welding is often applied for repair and modification, whether for pipelines or pipework and equipment. TWInhas assisted many companies in determining the welding parameters that can be used safely, avoiding burnthrough ofnthe carrier pipe and ensuring that fabrication hydrogen cracking does not occur. TWI has a long association with inservicenwelding procedure development, and also the application of inspection techniques for the geometries of concern.