MULTILAYER SEALS MANUFACTURING METHOD Russian patent published in 2015 - IPC F16J15/32 

FIELD: machine building.

SUBSTANCE: under manufacturing method of multilayer seals of the rotating shafts out of the elastomer materials including the elastomer materials pouring in the casting mould performed by two stages, with further thermal conditioning, initially to the base part of the mould the elastomer material with soft structure is poured to create the first layer of the seal with soft work edge, and to the additional part out of two rings the elastomer material with hard structure is poured to create the second layer of the seal with hard work edge, at that the elastomer material with hard structure is poured until final polymerization of the elastomer material with soft structure, thus ensuring best diffusion adhesion between the seal layers.

EFFECT: invention ensures high sealing properties and possibility of seal positioning on the rotating shaft.

2 dwg