Förfarande för termisk isolering av svetsfog samt hylsa därför

摘要

A method of joining at least two components ( 1, 2 ), such as tubes, where at least one of the components ( 1, 2 ) comprises, or is made of, a material which is difficult to weld, comprises the step of welding the components together and then thermally insulating the weld joint ( 3 ) using a sleeve ( 4 ) for example.