Low-pressure casting method for automobile motor casing and motor casing structure
A low-pressure casting, motor casing technology, applied in the direction of the casing/cover/support, electrical components, electromechanical devices, etc., can solve the problems of slow heat dissipation, complex manufacturing process, heavy weight, etc., to meet the requirements of long-term work, Guaranteed cooling effect and improved use time
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Embodiment 2
[0058] Embodiment 2, this embodiment is basically the same as Embodiment 1, the difference is that, in the low-pressure casting device described in step (3), the two boilers are respectively provided with electromagnetic pumps, and the electromagnetic pumps will melt the melt in the first boiler. Fill the mold cavity with aluminum water, form a thin layer of solidified shell on the inner wall of the mold cavity and the outer wall of the sand core structure 3, pour the unsolidified central aluminum water back to the first boiler, and in a few seconds (10 to 30 seconds) another An electromagnetic pump injects the molten aluminum in the second boiler under pressure into the mold to fill the rest of the mold. During both fillings, the pressure reached 900 millibars.
[0059] The electromagnetic pump uses the current and magnetic field in the conductive fluid to directly act on the electromagnetic driving force (Lorent magnetic force) on the metal liquid to make it move directional...
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