METHOD FOR MANUFACTURING OF MULTI-LAYER PANEL Russian patent published in 2009 - IPC B32B21/04 E04C2/26 

FIELD: construction.

SUBSTANCE: method includes installation of the first layer of oriented strand board, application of glue composition, installation of foam polystyrene board, application of the next layer of glue, installation of the second layer of oriented strand board, maintenance of glue polymerisation process, adhesion under vacuum press, panel cutting, fastening of wood bars. Application of glue composition is carried out with indent of 20-25 mm from product edge with its feed pressure of 2.7-4.5 atm., adhesion pressure makes 0.3-0.5 atm. and additionally includes after vacuumising stage - stage of panel strength gain, and after panel cutting stage - stage of wood bars preparation, including adhesion of calibrated board and application of fire biological protection, and stage of foaming of moulded technological grooves with indent of 10-25 mm from edge of technological groove is carried out prior to stage of wood bars fastening.

EFFECT: invention increases duration of multi-layer panels, quality of finished products by physical and mechanical and heat insulation properties, reduces prime cost and duration of product manufacturing process.

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