FIELD: construction.
SUBSTANCE: invention is related to the field of construction, in particular, to parquet board and method of its manufacture. Parquet board comprises combs and grooves to connect to adjacent boards and consists of three layers. Lower layer is made of at least two longitudinally installed lamellas, and along it at least one longitudinal slot is arranged, being displaced from its longitudinal axis to one of the lateral sides. In the middle layer between their lamellas there are grooves arranged, which create closed air compensation cavities. Lower layer is made of birch, middle layer of pine tree with oak lamellas on the opposite ends, upper layer made of oak. Hardness of upper layer of board is equal to hardness of every end zone of middle layer. Every comb in its root part has V-shaped control-groove. Technology is described for manufacture of parquet board.
EFFECT: increased quality of parquet board, its strength and heat resistance.
10 cl, 18 dwg
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