Two metal flange of inner surface -welding

• Main Authors: REN BAOJIAN, YUAN XIHAI, BAI YANG, KANG JIAYIN, HE QING, ZHANG FUFENG, WANG CHIYU, XU JIANGXIN
• Format: Patent
• Language: English
• Published: 20.01.2016
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

Two metal flange of inner surface -welding, including the flange body, the flange body includes interior disc and terminal surface, the flange body includes the basic unit, whole build -up welding have the overlay on the interior disc of basic unit and the terminal surface, and the overlay comprises the sub - overlay more than two -layer, and the gross thickness of overlay is 2 -4mm, the overlay comprises a plurality of welding beads, the welding bead of interior disc department overlay is the annular, and a plurality of welding beads distribute along the central line of interior disc in proper order, the welding bead of terminal surface department be the annular within and the central line of disc set up from inside to outside for the center. The technological problem who has solved effectively that ocean engineering, oil shale air to open are adopted and corroded at the occasion technical field pipeline that uses the acid chloride catalyst.