Method for manufacturing shaft seals

Details Method for manufacturing shaft seals Method for manufacturing shaft seals

F - Mech Eng,Light,Heat,Weapons

16

J

26/161

F16J 15/06 (2006.01) B23P 13/00 (2006.01) C21D 1/00 (2006.01) F16J 15/34 (2006.01)

Patent

CA 1114591

ABSTRACT This invention provides a method for manufacturing shaft seals comprising a sealing member rotating with the shaft and a stationary sealing member, the opposing planar surfaces of which form the seal. In order to obtain shaft seals which are able to withstand the stresses occuring in actual use without permanent deformation of the sealing surfaces being caused, such as are caused by rapid variations in temperature, the sealing members are subjected to a heat treatment in manufacture to cause per- manent deformations. The stresses caused by the heat treatment are to be at least as high as those stresses which will occur in actual use. The sealing surfaces are precision finished e.g. by lapping, after the heat treatment.

329880

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