Method for manufacturing recombined hardwood

Abstract

The invention discloses a method for manufacturing recombined hardwood. The method is characterized by comprising the following steps of: a, selecting gum wood with thickness of between 0.5 and 3 millimeters and width of between 5 and 100 millimeters; b, sizing; c, assembling, namely arranging and assembling the gum wood along the length direction; d, performing cold pressing, namely conveying the gum wood into a die of a press to perform cold pressing, wherein the pressure is more than 20MPa; and e, curing, namely heating the die filled with the blank to cure the blank. The sheared or rotary-cut fast-growing low juvenile gum wood or aspen wood of a made forest is used as a production raw material in the method, and the production raw material can be felled in 4 to 8 years, so the using cycle is greatly shortened, and the economic benefit is improved.

Description

technical field [0001] The invention relates to a wood manufacturing and processing method, in particular to a recombined hardwood processing method. Background technique [0002] At present, since natural forests are prohibited from being felled in my country, there is a shortage of hard solid wood for furniture, flooring, decoration, and building structures. More than 50% of the raw materials need to be imported. For direct processing, most of the time it is only used for papermaking or for the processing of laminate core materials. [0003] Due to the characteristics of the fast-growing wood itself, it has the following processing difficulties: ①Because the fast-growing wood grows fast, the density of the core layer and the outer layer are inconsistent, and the density error is 0.15-0.3, and it is easy to crack during drying; ②The fast-growing wood has too many dead knots, On average, there are hundreds of them per square meter, and they will fall off once dry, forming ho...

AI Technical Summary

Problems solved by technology

[0005] ①Since the thickness of the veneer strips is usually within 0.5-3mm, there is almost no natural texture of the wood itself. After the veneer strips are laminated and hot-pressed into laminated lumber, there will usually only be lamination. Horizontal texture, and the distance between laminated textures changes only by the change of the opening angle, the shape of the texture is single, and the color is not clear

[0006] ②Because of the hot pressing process itself, pressure is only applied on the upper and lower sides of the raw material, and there are gaps around or on the side, which does not form a completely closed space, resulting in a large gap between its physical and chemical performance indicators and solid wood

[0007] ③Because the hot pressing process needs to sort out the raw materials and pave them neatly before processing, the sorting or unpacking process is cumbersome; at the same time, because the hot pressing process requires continuous processes such as heating, pressure holding, and cooling, usually it takes From 30 minutes to 50 minutes, it takes a long time to produce and the production efficiency is low

Images