DEVELOPMENT OF NEW MASH SEAM WELDER (CROSS SEAM WELDER, CSW) FOR CARBON STEEL PICKLING LINE

摘要

Primetals Technologies had developed a new mash seam welder (Cross Seam Welder, CSW) based on MSW features including low cost and compactness, enhancing its compatibility with Continuous Rolling of Steel Sheets at Thicknesses up to 6.5 mm. The first order and second order for the CSW were received form JFE Steel Corporation, where they were installed in the Continuous Pickling Line. These revamping projects were to change the Welder from the flash butt welder (FBW) to the CSW. Additionally, the black scale remover was also developed and installed for use in pickling lines that enables welding by the CSW after the removal of the black scale on the surface of the coils as the first time in the world.