METHOD FOR LAYING INTERMEDIATE MATERIAL, ENSURING COHESION OF LATTER, METHOD FOR PRODUCING MULTILAYER SYSTEMS DESIGNED FOR PRODUCING COMPOSITE ARTICLES OF INTERMEDIATE MATERIAL Russian patent published in 2017 - IPC B29C70/20 

Abstract RU 2618066 C2

FIELD: construction.

SUBSTANCE: method is carried out by means of continuously laying on the laying surface the intermediate material consisting of a layer of unidirectional reinforcing fibers, connected at one of its sides with a layer of thermoplastic and/or thermo-curable material. The layers of thermoplastic and/or thermo-curable material, of which the intermediate material is formed, constitute not more than 10% of the total weight of the intermediate material. Wherein the intermediate material prior to its laying has been subjected to the operation of transverse forces point application so as to affect the entire thickness of the intermediate material, accompanied by heating resulting in the melting of the thermoplastic material or the polymerization of the thermo-curable material at the level of application points of transverse forces and resulting in the penetration of the thermoplastic and/or thermo-curable material inside and creating the connecting bridges by thickness of unidirectional layers of reinforcing fibers, that extend from one major side of the unidirectional fiber layer to the other. The intermediate material is laid in the continuous mode, along the predetermined movement path, with the simultaneous application of pressure and tension thereto to place it on the laying surface. Wherein laying is performed by placing the side of the intermediate material, corresponding during laying to the layer of thermoplastic and/or thermo-curable material on the laying surface and/or by arranging the intermediate material in the course of laying on the laying surface bearing the thermoplastic and/or thermo-curable material, and activating the thermoplastic and/or thermo-curable material which is located at the interface between the intermediate material and the laying surface to provide binding between the laid intermediate material and the laying surface.

EFFECT: elimination of delamination while laying intermediate materials.

39 cl, 11 dwg, 2 tbl

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RU 2 618 066 C2

Authors

Bero Zhan-Mark

Dyukarr Zhak

Dates

2017-05-02Published

2013-11-18Filed