Method for reducing the moisture percentage of wood materials to zero by using paraffin wax heat-treated process

A technology of moisture content and heat treatment furnace, applied in wood treatment, wood processing equipment, wood treatment details, etc., can solve the problems of high treatment cost, waste oil purification and waste treatment, pollution of wood surface, etc., and achieve dimensional stability And the effect of good durability and high strength

Active Publication Date: 2008-02-06
江阴市青阳世盛老红木家俱厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has obvious disadvantages, that is, the treatment cost is high, the wood surface will be polluted, and there are problems in the purification and disposal of waste oil.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The invention relates to a method for heat-treating wood with paraffin, which mainly includes the following process steps:

[0025] First, the wood is put into a wood heat treatment furnace, which includes a wood treatment chamber, a combustion chamber, a furnace door, a furnace cover, an air outlet, a fan, and a temperature monitoring device. The wood has been cut into sheets according to the required specifications, and the sheets are stacked into stacks. Paraffin wax is placed in the wood treatment chamber and heated to melt the paraffin wax into wax liquid. After the wood is put into the wood treatment chamber, the wax liquid is immersed in the stack of sheets, and the furnace cover and air outlet of the heat treatment furnace are closed. Then perform the following process steps in sequence:

[0026] a. The first stage of heating treatment

[0027] Carry out the first stage of heating treatment on the wood, so that the temperature in the furnace rises to 140-160 °...

Embodiment 2

[0034] The rosin and the modified rosin resin in embodiment 1 all adopt rosin. All the other are the same as in Example 1.

Embodiment 3

[0036] Rosin and modified rosin resin in embodiment 1 all adopt modified rosin resin. All the other are the same as in Example 1.

[0037] The rosin used in the present invention can be natural rosin (rosin) or lime rosin. The use of lime rosin can make the wood after heat treatment have a high softening point, hard surface and good gloss.

[0038] The modified rosin resin used in the present invention can be any one or more of rosin glyceride, rosin phenolic resin, rosin pentaerythritol resin, maleic rosin resin and fuma rosin resin.

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PUM

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Abstract

The invention relates to a heat treating method of paraffin wax to reduce the moisture content to the nearest zero, comprising the following steps: firstly, lumber is delivered to a heat treating furnace which comprises a lignum treating chamber, cut into lumber pieces; the pieces then are piled together, the lumber treating chamber is heated then to make the paraffin wax pre-positioned in the treating chamber melt into liquid paraffin wax to submerge the lumber pieces. Then the temperature in the furnace is heated to 140-160 DEG C, for 44 to 58 hours. Resin is added into the furnace to increase the temperature into 175-185 DEG C, for 67 to 77 hours. Heating stopping, the lumber pieces is cooled down to 58-110 DEG C and discharged out of the furnace. The resin takes up 10-50 parts by weight against the 100 parts by weight of the paraffin wax. The lumber after being processed by the method of the invention has a rate of moisture content more than 0 and less than 0.01 percent.

Description

technical field [0001] The invention relates to a method for heat treatment of wood, in particular to a method for heat treating wood with paraffin so that the moisture content of the wood is close to zero. It belongs to the technical field of wood products. Background technique [0002] Wood has a series of advantages such as renewable, easy to process, and has natural beautiful patterns, and is widely used in various purposes such as building structures, decorative materials, and furniture. But at the same time, as a natural green and environmentally friendly material, wood also has some natural defects, such as wood has anisotropy and poor weather resistance. Therefore, when the wood is used for a long time in an environment with large changes in humidity and temperature, due to the anisotropy of shrinkage, it is easy to cause various defects in the wood, such as deformation and cracking. When used in an environment with relatively high humidity (such as outdoors, place...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K5/04
Inventor 庄汝芳王建华
Owner 江阴市青阳世盛老红木家俱厂
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