HARDENING OF ARTICLES OF POLYURETHANE ELASTOMERS (VERSIONS) Russian patent published in 2013 - IPC B29C69/00 

FIELD: process engineering.

SUBSTANCE: invention relates to machine building, particularly, to production of wear-resistant equipment with the use of polyurethane elastomers. In compliance with this method, structural elastomer parts are hardened by combining the elastic cold uniaxial deformation to 1-3% of initial size and mechanical fixture of geometrical sizes of elastically strained part. Hardening of said parts is ensured by their compression and highly elastic strain to 3-10% of initial sizes and retaining said part as-compressed. Fixture of the parts thus strained is ensured by the use of extra components, say, shells, cells, screw rods, stop plates of rigid polymers that prevent recovery of the part initial sizes.

EFFECT: hardening increased some 1,5-2,0 times.

3 cl, 7 dwg