Patent ID: 8402651
Filing Date: 2013-03-26
Classification: B29C,B29K,B29L,F04C,F05C,Y10T

Abstract:
1. A method of manufacturing a vane used for an oil-sealed rotary vacuum pump and having at least a part formed of a resin material, the method comprising: a crude processing process of forming a crude product from a base material, the crude product being larger than a final shape of the vane; an oil impregnating process of immersing the crude product into oil used for the oil-sealed rotary vacuum pump under a depressurized condition; and a finishing process of finishing the crude product into the final shape, wherein the oil impregnating process being carried out before the finishing process; the resin material is a thermosetting resin; and in the oil impregnating process, the crude product is heated to a temperature greater than or equal to a curing temperature of the thermosetting resin via the oil.