| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inductive electromagnetic pump for molten metal in which a protective tube of a core 2 is stably supported in a pump side duct 1, and flow change of molten metal 12 caused by the temperature drop thereof hardly occurs inside a flange 6 and flanges 5, 5'. <P>SOLUTION: The inductive electromagnetic pump for molten metal includes: cylindrical ducts 1, 1' through which the molten metal 12 passes; an inductor 14 which is provided on the outer circumference of the duct 1 and generates a shifting magnetic field in the duct 1; the core 2 which is disposed in the duct 1, and comprises a magnetic body forming a magnetic path of the shifting magnetic field generated in the inductor 14; and a protective tube 3 provided so as to cover the core 2. Ribs 18 long in the longitudinal direction of the protective tube 3 are provided on the outer circumference of the protective tube 3 of the core 2 at the equal angular spacing, and in accordance with the ribs, grooves 19 long in the longitudinal direction of the duct 1 are provided on the inner circumference of the pump side duct 1 at the equal angular spacing. Each rib 18 of the protective tube 3 is fitted in each groove 19 on the pump side duct 1 while the protective tube 3 of the core 2 is fitted in the pump side duct 1. <P>COPYRIGHT: (C)2012,JPO&INPIT |
