公开(公告)号：DE3346680A1

公开(公告)日：1985-07-04

申请号：DE3346680

申请日：1983-12-23

Applicant: BASF AG

Inventor： ROSEWICZ HORST DR ,  MICHEL HEINRICH

IPC: B05D3/12 ,  B05D7/14 ,  B05D7/22 ,  B05C9/14 ,  B05D1/26 ,  B05D3/10 ,  B05D7/24

Abstract: The sheet metal casks and the like are made of coated steel sheets. After the deformation of the sheets and welding of the edge zones, free from coating, of the steel sheets to a cask body, the uncoated zone of the cask body is uniformly heated to a temperature of 230-350 DEG C and is lined internally and/or externally with a plasticised plastic. To obtain good adhesion to the substrate: -low-stress active material is used -the sheet metal of the weld seam zones is brought to comparable temperatures before the coating, and -after the molten band has been applied it is acted on with pressure. The uniform course of the temperature over the whole length of the weld zone (tempering), and also the use of low-stress plastics, largely prevents the occurrence of stresses leading to peeling.