Method for establishing inclined twin-jet-nozzle scanning spray forming technological parameters

• Main Authors: ZHANG JIE, ZHANG HAO, MA WANTAI
• Format: Patent
• Language: English
• Published: 23.12.2015
• Subjects: CASTING; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; WORKING METALLIC POWDER

The invention discloses a method for establishing inclined twin-jet-nozzle scanning spray forming technological parameters. The method comprises the following steps: (1), determining basic technological parameters comprising basic internal technological parameters and basic external technological parameters; (2), determining the descending speed of a collecting disc; (3), determining the scanning frequency of the internal jet nozzle, namely, f(internal), the scanning frequency of the external jet nozzle, namely, f(external), and the rotational speed (n) of the collecting disc; (4), determining the scanning areas of the internal jet nozzle and the external jet nozzle; (5), determining the inclination angles and the scanning area angles of the internal jet nozzle and the external jet nozzle; (6), determining the diameters of liquid guide pipes of the internal jet nozzle and the external jet nozzle; (7), determining the atomizing gas pressure (p internal) of the internal jet nozzle and the atomizing gas pressure (p external) of the external jet nozzle. According to the method for establishing inclined twin-jet-nozzle scanning spray forming technological parameters, provided by the invention, the problems of establishing steps of multiple technological parameters that are in association relationship and the computing method of the steps through engineering approaches are solved, so that a technological guarantee is provided for spray forming semisolid sedimentation of large-sized blank pieces.