Cross-laminated sheet processing method

Abstract

The processing method of the interlaced laminated board of the present invention includes laminate preparation, compound modifier configuration, surface layer laminate modification and enhancement, laminate finger joint, laminate sizing, billet assembly, pressing, and post-processing. The modification and strengthening process of the surface laminates includes putting the surface laminates into a closed pressure tank for vacuum treatment, and then compressing and strengthening the treated laminates; The surface layer is assembled in such a way that the grain directions of adjacent laminates are perpendicular to each other. After the blanks are assembled, they are put into a press for cold pressing and forming, and at the same time, lateral pressure is applied. The method of the present invention can not only use domestic fast-growing wood to produce cross-laminated boards, but also produce cross-laminated boards with excellent performance, the main mechanical performance index of the product can reach and exceed the performance index of similar products at home and abroad, and at the same time endow it with flame retardancy and antibacterial The versatility of the wood expands the utilization range of fast-growing wood, and promotes the development of domestic wood structure buildings to safe and high-quality high-rise buildings.

Description

technical field [0001] The invention relates to a method for manufacturing cross-laminated boards, which belongs to the technical field of wood-based panel manufacturing technology. Background technique [0002] Compared with reinforced concrete and other building forms, wood structure buildings have the advantages of energy saving, environmental protection, renewable wood, and good earthquake resistance. In North America, Europe, Japan and other countries, wood structure buildings, especially residential buildings, are widely used. my country's ancient wooden structure buildings have a long history and are unique. After the 1970s, due to the problem of timber resources, domestic wooden structure buildings were forced to stagnate. Since my country became a member of the WTO, the volume of timber imports has increased year after year. Canada and other countries have vigorously promoted new types of wooden structures in China, and have gradually obtained government and enterp...

AI Technical Summary

Problems solved by technology

[0004] However, the current domestic wood structure code stipulates that the maximum number of floors of light wood structure buildings is only 3 floors, which greatly limits the development of wood structure buildings in China

There are two main reasons. One is that the design and construction technology of domestic modern wood structure buildings are relatively backward; , now it is only used to produce decorative panels, but not used in wood structure buildings, leading to the fact that domestic wood structure buildings mainly use foreign wood, and the cost is relatively high

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