Welded joint of small dimension light -wall pipe and aperture bridge tube board

• Main Authors: ZOU DIJING, XIE YANWU, WANG LI, SONG ZHIPENG, WANG XINJUAN, YANG SONG, ZHAO FUDONG
• Format: Patent
• Language: English
• Published: 30.12.2015
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The utility model discloses a welded joint of small dimension light -wall pipe and aperture bridge tube board, it includes the tube sheet and inserts pipe in the tube sheet tube hole, unilateral " V " type groove of the specific specification of holes processing in tubesheet one -tenth of tube sheet one side and the terminal surface of pipe stretch out the specific length of tube sheet face, the utility model provides a welded joint of small dimension light -wall pipe and aperture bridge tube board cooperates specific tube and tube plate welding process, specific material is used for carrying on, automatic weld between the tube and tube plate of specification, it is less than 10mm to be applicable to the external diameter, the wall thickness degree is less than the welding between 1mm's pipe and the tube sheet that the conduit bridge is less than 3mm, make the welded joint leakproofness good, high weld quality, the process is reliable and stable, the welding seam takes shape even pleasing to the eyely, the root fuses well, weld efficiently, and it is experimental through each item non -destructive testing and physical and chemical properties, its result satisfies the requirement of nuclear island owner equipment tube and tube plate welding quality.