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2 077 447

(13)

C1

(51)

IPC

(21) (22)

Application

92010310/11, 1992-12-07

(22)

Actual filing date

1992-12-07

(45)

Published

1997-04-20

(72)

Inventor

Kuchkin V.V.Ivanov V.V.Rivkind V.N.Ragulina T.L.

(73)

Holder

Tsentral'Nyj Nauchno-Issledovatel'Skij Institut Konstruktsionnykh Materialov

SANDWICH CONSTRUCTION Russian patent published in 1997 - IPC

Abstract RU 2077447 C1

FIELD: aviation, rocketry and transport engineering. SUBSTANCE: one or more layers of two-component boron-reinforced aluminium band are placed in load-bearing layers of three-layer glass plastic at distance no less than 1.5 mm from surface. In case different binders are used, for example, rigid binder for load-bearing layers and elastic binder for filler, boron-reinforced band is laid in load-bearing layers over boundary with filler. Stiff and strong boron fibers introduced in load-bearing layers increase flexural rigidly and strength of structure simultaneously enhancing its dampening characteristics. Thickness of glass plastic equal to 1.5 mm with boron-reinforced band laid in layers is sufficient for reduction of moisture absorbing of structure within 10 year operation period. EFFECT: enhanced reliability. 2 cl, 2 dwg, 2 tbl

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RU 2 077 447 C1

Authors

Kuchkin V.V.

Ivanov V.V.

Rivkind V.N.

Ragulina T.L.

Dates

1997-04-20—Published

1992-12-07—Filed

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