FIELD: manufacturing composite materials.
SUBSTANCE: the invention relates to the field of manufacturing composite materials and concerns three-layer honeycomb structures used in the aerospace industry for the manufacture of various aircraft and aircraft nodes. The manufacture of a heat-resistant honeycomb three-layer structure includes the manufacture of a honeycomb core and a glass fabric lining, as well as their impregnation with a binder. Heat treatment of the honeycomb core is carried out in a stepped mode. Then the skin is connected to the end surfaces of the honeycomb filler by a polyimide binder with the addition of a microgrinding powder of electrocorundum as a filler. After that, pressing is carried out while heating in a stepped mode.
EFFECT: reduced temperature of production of honeycomb filler and three-layer structure as a whole, reduced time of their manufacturing while maintaining operation temperature of 300°C.
1 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| HEAT-RESISTANT THREE-LAYER HONEYCOMB STRUCTURE | 2021 |
|
RU2768416C1 |
| RADIO TRANSPARENT HEAT-RESISTANT THREE-LAYER HONEYCOMB CONSTRUCTION | 2022 |
|
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| METHOD TO MANUFACTURE HONEYCOMB FILLER | 2014 |
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RU2559495C1 |
| METHOD FOR PRODUCING CURVILINEAR THREE-LAYER COMPOSITE PANELS | 2017 |
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RU2685218C1 |
| COMPOSITION AND METHOD OF PRODUCING BINDER, PREPREG AND CELLULAR PANEL | 2010 |
|
RU2460745C2 |
| HOT-MELT BINDER, METHOD FOR PRODUCTION THEREOF, PREPREG AND HONEYCOMB PANEL BASED THEREON | 2011 |
|
RU2486217C1 |
| METHOD OF HONEYCOMB PRODUCTION | 2007 |
|
RU2337007C1 |
| METHOD OF MANUFACTURING A LAMINATED CELLULAR PANEL | 0 |
|
SU718291A1 |
