A production process of modified fiber board

Abstract

The invention relates to a production process of modified fiberboard, which includes: chipping, cooking and grinding, preparation of modified fiber material, drying, preparation of blank material, cold pressing, hot pressing, sawing, sanding and thickness determination, etc. step, wherein, in the preparation step of the modified fiber material, calcium powder is applied to the fiber material, and calcium powder is used to replace part of the wood fiber. When filling, the calcium powder is first mixed with glue, and then mixed with the fiber material , so that the gaps between fibers are filled with a mixture of calcium powder and glue, thereby improving the physical and chemical properties of the fiber board, achieving the purpose of increasing the density of the board, reducing wood consumption, improving the static bending strength and elastic modulus of the board, and The practical effect of reducing the production cost of fiberboard and effectively saving wood resources. Compared with ordinary fiberboard, it can save about 20% of wood, and the modified fiberboard produced has the advantages of high strength, strong nail holding force, good bending resistance, strong stability and flame retardancy.

Description

Technical field [0001] The present invention is a production technology in the production technology of artificial board. It is a production process of modified fiber board. Background technique [0002] With the increasing demand for wood and its products today, the demand for wood and its products is increasing, and make full use of the artificial forest forests, forest cultivation and logging of the remaining objects, production construction, and abandoned wood fibers such as wood fibers in the process of renewal and transformation.Traditional solid wood products have an irreplaceable role in protecting natural forest resources and improving the ecological environment while meeting the demand for wood products at the same time.With the rapid development of my country's economy and the continuous improvement of urbanization, the quality of quality, high environmental protection levels, meet differentiated needs, and fiber board products with safety flame retardant functions hav...

AI Technical Summary

Problems solved by technology

In the prior art, the commonly used fiberboards are degreased and peeled logs, crushed into wood fibers and then molded under high temperature and high pressure. Most of the existing fiberboards in the market are medium density boards and high density boards, and their density is higher than that of ordinary boards. Higher, the material of this kind of fiberboard is uniform, the surface is flat, and the decoration of the surface of the board is good, but the disadvantages are: the stability is poor, and the board is warped and deformed due to the difference in expansion force after moisture absorption, due to the strength of the fiberboard It is not high, and the nail holding power is poor. If the screw becomes loose after tightening, it is difficult to fix it again, which limits its scope of use to a certain extent.

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