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Elm drying method

A drying method and technology for elm, which are applied in the directions of drying gas arrangement, drying, and dryer, can solve the problems of insufficient drying of wood, difficult drying of elm, and easy cracking and deformation of elm furniture. To achieve the effect of fast drying speed, accelerated drying speed and excellent anti-mildew effect

Active Publication Date: 2017-05-31
FUYANG WEIYE FURNITURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Elm wood is not easy to dry. There are many problems in the drying technology of many elm wood panels on the market. The drying of the wood is not in place, so the elm wood furniture produced is prone to cracking and deformation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A method for drying elm wood, comprising the following processing steps:

[0015] (1) Initial heat treatment: suspend single rows of elm wood horizontally in hot air, the hot air outlet is at a 60° inclination angle to the horizontal plane, the wind speed at the hot air outlet is 1.3m / s, the hot air temperature is 35°C, and the thickness is 25cm is 80 minutes. During the treatment, turn over every 30 minutes;

[0016] (2) Initial cold treatment: Immediately place the treated elm at -10°C for cooling treatment. Among them, the cooling treatment time for elm with a thickness of 25cm is 25 minutes;

[0017] (3) Heat treatment again: suspend single row of elm wood horizontally in the hot air, the hot air outlet is at a 40° inclination angle to the horizontal plane, the wind speed at the hot air outlet is 1.8m / s, the hot air temperature is 46°C, and the thickness is 25cm is 100 minutes, during the treatment process, turn it over every 30 minutes;

[0018] (4) Cold treatme...

Embodiment 2

[0022] A method for drying elm wood, comprising the following processing steps:

[0023] (1) Initial heat treatment: Suspend single rows of elm wood horizontally in hot air for treatment. The hot air outlet is inclined at an angle of 60° to the horizontal plane. The wind speed at the hot air outlet is 1.4m / s, and the temperature of the hot air is 40°C. The drying time of elm wood is 20 minutes. During the processing, the surface is turned over every 5 minutes. The drying time of elm wood with a thickness of 10-25cm is 50 minutes. During the processing, the surface is turned over every 10 minutes. The drying time of elm wood > 25cm is 85 minutes. During the treatment, turn it over every 30 minutes;

[0024] (2) Initial cold treatment: Immediately place the treated elm at -12°C for cooling treatment. Among them, the cooling treatment time for elm with a thickness of 25cm is 30 minutes;

[0025] (3) Re-heat treatment: suspend single rows of elm wood horizontally in the hot air,...

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PUM

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Abstract

The invention relates to the technical field of wood processing, in particular to an elm drying method. The elm drying method comprises the following processing steps that primary cold treatment is conducted after primary heat treatment; then secondary cold treatment is conducted after secondary heat treatment; and final heat treatment and ozone treatment are conducted at last. The anti-mold property of elm obtained through drying by the elm drying method is detected through GB / T 18261-2000 "Test Method for Preventing and Curing Wood Mold and Blue Stain Fungus through Anti-mold Agents"; the damaged degree of the wood within 30 days is 0.25-0.28; the anti-mold effect is very good; the water content of the final elm obtained through drying is 8%-10%; the dried elm is level and free of damage; cracking and deformation inside and outside the elm are avoided; and the elm drying speed is high.

Description

technical field [0001] The invention relates to the technical field of wood processing, in particular to a method for drying elm wood. Background technique [0002] Elm is a deciduous tree with tall trees, which can be seen everywhere in the north, especially in the Yellow River Basin. Elm wood is tough, with clear texture, moderate hardness and strength, suitable for general openwork and relief, smooth planing surface, beautiful string surface pattern, and "chicken wing wood" pattern, which can be used for furniture and decoration. Drying, shaping, carving, polishing and lacquer painting can make exquisite carved lacquer handicrafts. Old Russian elm (that is, purple elm) is the most classic, with the advantages of clear texture, large tree and less scars, and is a precious material for making furniture. It can be seen everywhere in the furniture market in the north. Elm wood is not easy to dry. There are many problems in the drying technology of many elm wood panels on t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B21/00A61L2/20
CPCA61L2/202F26B21/00
Inventor 刘伟
Owner FUYANG WEIYE FURNITURE