METHOD OF MOULDING OF STRUCTURE PANELS (VARIANTS) AND PANEL MOULDED BY THIS METHOD Russian patent published in 1997 - IPC

Abstract RU 2099189 C1

FIELD: manufacture of structure panels, which subsequently can be used for the interior of commercial airplanes. SUBSTANCE: first the facing and the core are connected, then they are jointly subjected to preheating. The facing is heated to a temperature of 150 to 400 deg. C for 30 to 240 s, with the core temperature brought to 95 to 335 deg. C. The panel facing is made of thermoplastic resin reinforced by fibre. Prior to panel moulding, the mould is heated to a temperature of 75 to 450 deg. C. Polyesterketonketone is used as resin, and carbon fibres or glass fibre are used as reinforcing fibres. The panel core is made as a cell structure of reinforced paper. Beside the facing the panel core may have a decorative surface layer of polyvinyl-chloride film. The thermoplastic core facing is preheated to a temperature of 150 to 400 deg. C, and the film - to a temperature of 75 to 150 deg. C. The heated panel and film are moulded at a pressure of 3.515 to 6.327 kg/sq.cm. The decorative layer in a finished panel has a break adhesion within 0.053 to 1.246 kg/cm of the width. EFFECT: facilitated procedure. 11 cl, 6 dwg , 1 tbl

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RU 2 099 189 C1

Authors

Effing Majkl Dzhozef[Us]

Nollen Dennis Artur[Us]

Oukin Richard Kejf'Ju[Us]

Uolrejv Albertas Peter[Us]

Dates

1997-12-20Published

1993-06-11Filed