Continuous production method for laminated compression wood

A technology for compressing wood and production methods, which is applied in the direction of lamination, lamination devices, impregnated wood, etc., can solve the problems of undisclosed layered compressed wood connection production methods, etc., achieve selective directional densification, and improve the use of Performance and use price, the effect of improving actual production efficiency

Inactive Publication Date: 2017-12-01
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these studies only reported that wood layered compression can be realized, but did not specifically disclose the connection production method of layered compressed wood, because the production method of wood directly affects the performance of products, the feasibility of technology transformation, the efficiency of production and economic benefits , so the research and development of the connection production method of layered compressed wood has become an urgent problem to be solved in the industry

Method used

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  • Continuous production method for laminated compression wood

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Experimental program
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Effect test

Embodiment 1

[0030] Example 1: Continuous production method of layered compressed wood, as attached figure 1 As shown,

[0031] The layered compressed wood is made from wood after drying wood, wood end-sealing, water immersion treatment, pre-heat treatment, high-temperature hot pressing (that is, compression treatment), and the method includes the following steps:

[0032] (1) According to actual production requirements, the logs are sawn into wood of corresponding size (or called boards, the same below), where the logs can be any tree species, preferably low-density plantation fast-growing wood. The wood is then dried in an atmospheric environment or in a drying kiln or drying box, and the moisture content after drying is less than 20%, preferably the moisture content is less than 16%.

[0033] (2) After capping the water content of wood, paraffin and other hydrophobic materials with a moisture content of less than 16%, or directly soaking in water, the water temperature is 0-100℃, preferably 2...

Embodiment 2

[0043] The materials or equipment used in the present invention are as follows:

[0044] material:

[0045] a, the density is 0.20-0.70g / cm 3 Wood, or wood with a density of less than 0.70g / cm, including plantation fast-growing wood and natural forest wood, such as poplar and willow species, Chinese fir, paulownia, cedar and other domestic fast-growing woods, as well as all imported fast-growing woods;

[0046] b. The wood processing plant board can be chord plate, chord radial plate, radial plate, preferably chord plate;

[0047] c. The thickness is 0.5-500mm, and can also be any processable thickness, preferably 1-150mm;

[0048] d. Planing and sanding the sawn wood board surface to make the surface smooth, or the sawn board does not have the surface leveling treatment;

[0049] e. End-capping agent: paraffin and other hydrophobic materials;

[0050] f. Softener: water, ammonia, alkaline aqueous solution and one or more of imines, ketones, ethers, alcohols, nitriles, amides, esters, and...

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Abstract

The invention discloses a continuous production method for laminated compression wood. The method comprises the following specific steps that 1, log is sawn into wood, and then the wood is dried, wherein the moisture content of the dried wood is lower than 20%; 2, the wood is immersed into water to be soaked, and the soaked wood is taken out and placed; 3, the wood is laid out on a hot pressing plate of a hot pressing machine, and the hot pressing machine is rapidly closed to conduct pre-heating treatment on the wood; 4, after pre-heating treatment is conducted, compression treatment of the hot pressing machine is started, wherein the compression speed ranges from 0.05 mm/s to 5 mm/s; and 5, pressure maintaining treatment is conducted, cooling treatment is conducted after pressure maintaining treatment is conducted, and then the laminated compression wood is obtained, wherein the pressure maintaining time is longer than 1 min. According to the continuous production method for the laminated compression wood, the product performance of the laminated compression wood is greatly improved, industrialized production of a laminated compression technology is achieved, and the production efficiency and economic benefit of the compression wood are significantly improved.

Description

Technical field [0001] The invention relates to a continuous production method of layered compressed wood, and relates to the field of wood flooring and furniture. Background technique [0002] The heat-pressing treatment of wood horizontal grain can effectively increase its density, improve physical and mechanical properties, and meet people's actual production and life needs. Wood compression patents began in Germany and the United States at the beginning of the 20th century. By the middle of the 20th century, Russia and China also developed dry and wet processes for the production of compressed wood and developed products such as compressed wood shuttles for textiles. However, due to low production efficiency, compression and rebound problems and abundant wood resources, compressed wood has not entered people's daily production and life for a long time. Until the early 1990s, in order to solve the problem of poor wood quality in plantation forests, Japan carried out research ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D3/00B27K3/02B32B37/06B32B37/10
CPCB27D3/00B27K3/02B27K3/0214B32B37/06B32B37/10
Inventor 黄荣凤高志强张耀明伍艳梅李任
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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