Manufacturing method for upper plate of metal impeller of submerged pump

• Main Author: CHEN, SHI-ZONG
• Format: Patent
• Language: Chinese; English
• Published: 01.04.2007
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The present invention relates to a kind of manufacturing method for the upper plate of the metal impeller inside the submerged pump, including to press upper plate substrate (100), to press the protruded ring (103) in the center of the upper plate substrate (100), to locate the upper plate substrate (100) in the plastic forming mold (30), to form a plastic lining (105) inside and integral with the protruded ring (103) by the injection forming method. Thus, the upper plate (11) of impeller assembly (10) with integrated plastic lining (105) can be obtained. The upper plate (11) is then welded and fixed onto the volute blades (13), and the lower plate (12) is mounted onto the other ends of the volute blades (13) to obtain the impeller assembly (10). Because the upper plate substrate (100) and plastic lining (105) are formed as one piece, there is no clearance between them. The impeller assembly can be attached onto the motor shaft of the submerged pump by the inner wall of the plastic lining (105) to ensure the