Wood bunch recombining material and producing method thereof

Abstract

Disclosed is a wood bunch composite lumber, whose cross section is square, round or elliptical shaped, wherein the wood fiber is vertically arranged; the appearance of the cross section is a congregated section of numerous wood bunches, showing the combining color of the natural wood color and the color of the glue; the density is 0.7-1.1g / cm3; the static bending strength is 30-40MPa; the elasticity modulus is 5000 -11000MPa; the nail-holding ability is 1100-2000N. The production of the composite lumber includes the following procedures: material selection, wood-bunch preparation, desiccantion, gluing, measuring, assembling, mould packing, cold pressing, thermal initiated solidification, cooling and mould removal. The composite lumber can be applied directly to the architectural ornament industry, the sawed floor board and the furniture faceplate and so on. The invention has advantages that the raw materials adopted can make comprehensive use of the lumber resources; the material quality of the product is even; the structure and the nature of the lumber can basically be kept unchanged; the lumber is material-saving, stable and easy for secondary production.

Description

technical field [0001] The invention relates to a profile recombined with wood bundles and a production method of the profile. Background technique [0002] CN1133533C discloses the patented technology of "Bamboo Recombination and Strengthening Forming Materials" of Zhejiang Anji Tianfeng Wood Industry Co., Ltd., the moso bamboo slices are pressed into wires, dried, dipped in glue, molded, and then cold-pressed under high pressure (10-100MPa) And heat-cured and shaped, the glue content of the bamboo silk after dipping is 6-15%. This technology uses bamboo shreds of the same size as raw materials, and there is no small-sized bamboo shreds to fill the gaps between them, so high pressure must be used to produce qualified products, otherwise there will be gaps. However, excessive pressure causes crushing, cracks on the non-adhesive surface, barbs, fluffing after sawing, cracking after painting and other quality problems. This patent uses string slices of raw bamboo and then pr...

AI Technical Summary

Problems solved by technology

This technology uses bamboo shreds of the same size as raw materials, and there is no small-sized bamboo shreds to fill the gaps between them, so high pressure must be used to produce qualified products, otherwise there will be gaps

However, excessive pressure causes crushing, internal cracks on the non-adhesive surface, barbs, fluffing after sawing, cracking after painting and other quality problems.

This patent uses string slices of raw bamboo and then pressed bamboo shreds as raw materials. During production, the pressure exceeds 50MPa. The bamboo material has a large compression volume, high product density, and many consumables. It is difficult for secondary processing and nailing, and it is difficult for presses and other equipment Technical requirements and high investment