中國(guó)有色金屬學(xué)報(bào)(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 19 Special 1 September 2009 |
membrane tanks in LNG ship building
（1. Hanjin Heavy Industries & Construction Co. Ltd, Jungang-dong, Busan, Korea;
2. Department of Naval Architecture and Ocean Engineering, Pusan National University, Jangjeon-dong, Busan, Korea）
Abstract:The support plates including all of the inner hulls such as E grade steel, weld seams and SUS304L were considered to establish the optimal stud welding condition in LNG ship building. The stainless steel plate was especially applied to the bracket on the liquid dome. The polished and etched surfaces of the welded stud and support plate were examined if the bead was properly formed. With the micrographic examination, the fusion boundary of metal weld zone formed by stud welding was analyzed to optimize the welding parameters. And also the analysis of the unacceptable welding faults such as cold and hot weld were performed. The mechanical tests such as tensile tests and bending tests were carried out to reveal any abnormal variation in the relationship of process parameters and the strength.
Key words: stud welding; cold weld; SUS304L
