Transition Joints In Indus-2

摘要

A large number of welding joints are being employed in the fabrication of Indus-2 synchrotron storage ring being constructed at CAT. Apart from the TIG welded joints of Aluminium alloy vacuum chambers, there are many other joints, which are made between dissimilar metals. Stainless steel pipes are friction welded with Aluminium pipes and are to be used as pumping ducts between vacuum pumps and the vacuum chambers. Similarly Stainless steel flanges are fastened with Aluminium flanges thru'a diamond seal. These joints are tested for a leak tightness of 2 x 10~(-10) ton lit/sec of Helium. This paper describes the details of the friction welded transition joints and their application in the Indus-2 synchrotron storage ring.