Oriented shaving plate and oriented artificial board

Abstract

The invention provides an oriented shaving board comprising a core layer and a surface layer. The core layer comprises a core layer upper layer body, a core layer middle layer body and a core layer lower layer body, and each of the core layer upper layer body, the core layer middle layer body and the core layer lower layer body comprises straw shaved pieces. The straw shaved pieces in the core layer upper layer body are arranged in a first predetermined direction, and / or the straw shaved pieces in the core layer middle layer body are arranged in a second predetermined direction, and / or the straw shaved pieces in the core layer lower layer body are arranged in a third predetermined direction. The surface layer comprises an upper surface layer body and a lower surface layer body, and each ofthe upper surface layer body and the lower surface layer body comprises fine materials composed of wood shavings. According to the screening value of the fine materials of the upper surface layer body, all the wood shavings in the fine materials of the upper surface layer body can pass through a 12-mesh standard screen net, and / or according to the screening value of the fine materials of the lower surface layer body, all the wood shavings in the fine materials of the lower surface layer body can pass through the 12-mesh standard screen net. The invention further provides an oriented artificial board.

Description

technical field [0001] The invention relates to the field of straw man-made board manufacturing, in particular to an oriented particle board and an oriented wood-based board with a high surface fineness. Background technique [0002] At present, my country's OSB manufacturing is still dominated by wood raw materials. After the country implemented the natural forest protection project and restricted timber cutting, many particleboard manufacturers fell into the dilemma of shortage of timber resources. [0003] my country is a large agricultural country with abundant crop straw resources. There are many kinds of plants that can provide fiber, with wide distribution, short growth cycle and large output. According to statistics, my country's annual crop straw is about 700 million tons, of which wheat straw exceeds 100 million tons. At present, the utilization of straw resources at home and abroad mainly includes the utilization of straw energy, straw feed, straw fertilizer, an...

AI Technical Summary

Problems solved by technology

[0004] However, the traditional oriented strand board made of wood, due to the large size of the surface shavings, is not much different from the core shavings, and the board panels made are uneven, such as for interior decoration or furniture manufacturing

After the secondary surface treatment is required, the decorative surface can be carried out, such as sanding, double-sided veneer with a certain thickness, etc., which will increase the processing cost in the later stage, and also increase the processing procedures, which limits the quality to a certain extent. the scope of its use

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