POROUS RUBBER SHOCK-ABSORBER WITH SET STIFFNESS, METHOD OF STIFFNESS ADJUSTMENT OF POROUS RUBBER SHOCK-ABSORBERS, AND METHOD OF MANUFACTURING OF POROUS RUBBER SHOCK-ABSORBERS WITH SET STIFFNESS Russian patent published in 2015 - IPC C08L21/00 C08J5/04 F16F1/36 G01N33/44 

FIELD: machine building.

SUBSTANCE: invention relates to devices and method of the vibration protection of vehicles, in particular to shock-absorbing gaskets under bases of rails or bars of the pointworks, as well as for vibration protection of the construction structures and industrial equipment. Method of shock-absorber stiffness regulation includes addition of the synthetic polypropylene fibre from 0.1 to 12 wt % to wet porous rubber mixture based on unsaturated rubber or mixture of rubbers, as calculated to weight of the rubber mixture with further creation and vulcanisation of the produced products. At that amount of the polypropylene fibre is calculated as per the preliminary obtained by tests relationship between the shock-absorber stiffness and content of fibre within the specified range and ensuring the required stiffness.

EFFECT: method produces the porous shock-absorber with set Young's modulus characterised, in principle, by the linear relationship of the Young's modulus and content of the specified polypropylene fibre.

18 cl, 1 dwg, 8 tbl