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Composite anti-corrosion timber and production method thereof

A production method and technology for preservative wood, applied in chemical instruments and methods, layered products, wood treatment, etc., can solve problems such as insufficient penetration rate of preservative sapwood and penetration rate of heartwood, etc. The effect of reducing production cost and long service life

Inactive Publication Date: 2015-08-12
HANGZHOU LAIKE BAMBOO & WOOD IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a composite anticorrosive wood with good anticorrosion effect and long service life. Another purpose of the present invention is to solve the problem that the penetration rate of preservative sapwood and heartwood penetration rate of existing solid anticorrosive wood are not enough. Provide a production method of composite preservative wood with reasonable process, low production cost, high production efficiency and good product quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: the manufacture method of the composite preservative wood of the strong laminated structure of decoration, its production step comprises:

[0029] (1) The fast-growing wood is processed into a small veneer with a thickness of 1-30mm by rotary cutting or planing, and then dried at 30-60°C to make the moisture content below 16%. The purpose of this treatment is to absorb the agent quickly and more when impregnated with preservatives, and the other is to prevent the wood from becoming moldy and deteriorating during storage;

[0030] (2) Since small veneers need to be impregnated, in order to reduce production costs, no pressure or vacuum is required, and the small veneers treated in step (1) are impregnated with preservatives, preservatives and Water mixing, the mixing ratio is 1:14~20, the mixture of preservative and water absorbed per 100kg small veneer is 30~60kg, the immersion time is controlled within 10~30 minutes, and then the low temperature i...

Embodiment 2

[0034] Embodiment 2: the manufacturing method of the composite preservative wood of the recombined wooden structure with strong decorative property, its production step comprises:

[0035] (1) The fast-growing wood is processed into small wood with a filamentous structure of 1~30mm thickness by rolling and crushing, and then dried at 30~60°C to make the moisture content below 16%. The first purpose is to absorb the agent quickly and more when impregnated with preservatives, and the second is to prevent mildew and deterioration of small wood units during storage;

[0036] (2) Since the small filamentous wood needs to be impregnated, in order to reduce the production cost, it is not necessary to pressurize or vacuumize. The small filamentous wood treated in step (1) is impregnated with preservatives by impregnating at normal temperature and pressure to prevent corrosion. Preservatives and water are mixed, the mixing ratio is 1:14~20, the mixture of preservatives and wa...

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Abstract

The invention relates to composite anti-corrosion timber and a production method of the composite anti-corrosion timber. Small timber unit bodies having the thickness of 1-30mm, used as raw materials, are subjected to drying, preservative dipping, drying, glue applying, assembling, pressurizing and solidifying; the composite anti-corrosion timber has the following physical and mechanical properties: the density is 0.9-1.2g / cm<3>, the static bending intensity is 70-130MPa, and the water-absorption thickness swelling rate is less than or equal to 5%; compared with the solid anti-corrosion timber, the composite anti-corrosion timber has good physical and mechanical properties; and besides, top-grade timber and low-grade fast-growing wood can be mixed to achieve good surface decoration effect, the using amount of the top-grade timber can be reduced, and the cost is reduced; the preservative dipping method is simple, the small timber unit bodies are dipped in the preservative, therefore, the problem that the preservative cannot permeate into the edge and the core of the thick timber is solved, and the maintenance dose of the preservative for the anti-corrosion timber can be well controlled.

Description

technical field [0001] The invention relates to the technical field of processing wood or similar materials, in particular to the technical field of processing wood-based panels, in particular to a composite preservative wood and a production method. Background technique [0002] At present, the main method of preservative treatment of wood commonly used in the world is: using a water-based preservative that is not suitable for dissolution, while applying pressure to the wood in a closed vacuum tank, the preservative is injected into the wood fiber, and the preservative treatment process The process is "vacuum pump out the air in the treatment tank → fill with preservatives → pressurize to make the preservatives fully penetrate into the interior of the wood → discharge the preservatives, and vacuum to remove excess preservatives", this process is the most effective and applied in the world One of the most extensive treatment processes, but this process of injecting preservat...

Claims

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Application Information

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IPC IPC(8): B27K3/02B27K3/12B27D1/08B27N3/08B32B37/10
CPCB27K3/02B27D1/08B27K3/12B27K2200/15B27N3/08B32B37/10
Inventor 胡波周庆跃周文化
Owner HANGZHOU LAIKE BAMBOO & WOOD IND