METHOD OF REPAIRING ARTICLES FROM POLYMER COMPOSITE MATERIALS WITH ONE-SIDE ACCESS TO REPAIR AREA Russian patent published in 2020 - IPC B29C73/10 

FIELD: chemistry.

SUBSTANCE: invention relates to the technology of repairing articles from polymer composite materials. Technical result is achieved by a method of repairing monolithic articles from polymer composite materials, wherein boundaries of the damage area are determined, and the damaged area is cut to form a through hole. At that, in preparation of repair zone, stepped recess is made at installation of patch layers along edge of through hole. Base contour consisting of fabric impregnated with glue to ensure tightness of bottom part of damage is laid along contour of stepped recess. In middle part of fabric there is an adhesive lens made of a mixture of glue and separate fibres of fabric, and fabric impregnated with glue, which is the first layer of compensating patch, laid over glue lens, by means of which the surface of the compensating patch layer is levelled, for subsequent, after hardening of the base layer, grinding of the conical cavity, in which layers of compensating patch are laid, which are hardened under the vacuum bag.

EFFECT: technical result is possibility of repair of said articles from polymer materials without their dismantling.

1 cl, 9 dwg