关键词: 机械胀接, 液压胀接, 开槽管板, 胀接实验

Abstract: Through the expansion joint process,this paper adopts mechanical expansion pipe, hydraulic pipe expander and hydraulic pipe expander to carry out the pipe expansion test by using the expansion process. Expanding test is made by studying the expansion performance with different groove width and the expansion performance with different expanded joint technologies of the expended joint performance under the same groove width, the adaptive expansion technique is determined by comparison. The research results show that the experimental method is reasonable and the data is full and reliable. In order to study the connection between heat exchanger tube and tube plate, cheak the tube expanding quality of expending tube and the expanding character of tube material, determining the best expanding coefficient, testing the surface quality of expanding part and the enclosure character, to provide experimental evidence.

Key words: Mechanical expansion joint, Hydraulic expansion joint, Slotted tube sheet, Expansion join test