Elm timber softening treatment method

A technology for softening and wood treatment, applied in wood treatment, wood treatment details, impregnating wood, etc., can solve the problems of difficult disposal of waste liquid, low softening uniformity, damage to wood performance, etc., and achieve good use value and significant softening effect. , The effect of not easy to fluff

Inactive Publication Date: 2017-01-04
阜南县环宇柳木工艺制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Elm is an important raw material for furniture and handicrafts. Although it has good bending properties, it still cannot meet the needs of actual processing. Therefore, it needs to be softened for better processing and utilization.
[0003] At first, people softened elm by simply steaming. Although it can soften the wood, it has a great damage to other properties of the wood. Nowadays, people often use liquid softening agents for soaking and softening, but there is a problem of softening uniformity. Not high, and most of them have pungent odor and toxicity, and the waste liquid generated is not easy to handle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of softening treatment method of elm wood, comprises the steps:

[0027] (1) Wood pretreatment:

[0028] After the elm wood is cut according to the processing, it is washed with water to remove impurities such as sawdust, and then stacked for later use;

[0029] (2) Steam explosion treatment:

[0030] Put the elm wood treated in step (1) into a closed tank, let in water vapor at a temperature of 110°C, and keep the pressure in the closed tank at 3MPa. After reaching the normal state, take out the elm wood for subsequent use;

[0031] (3) Soaking treatment:

[0032] Put the elm wood treated in step (2) into the treatment solution for soaking for 1 hour, and the treatment solution is an aqueous solution of polyvinylpyrrolidone with a mass fraction of 0.2%;

[0033] (4) Drying treatment:

[0034] Put the elm wood after soaking treatment in step (3) into a drying chamber, and dry it until the overall water content is 40-42% for later use;

[0035] (5) Ultrasoni...

Embodiment 2

[0045] A kind of softening treatment method of elm wood, comprises the steps:

[0046] (1) Wood pretreatment:

[0047] After the elm wood is cut according to the processing, it is washed with water to remove impurities such as sawdust, and then stacked for later use;

[0048] (2) Steam explosion treatment:

[0049] Put the elm wood processed in step (1) into a closed tank, pass in water vapor at a temperature of 120°C, and keep the pressure in the closed tank at 4MPa. After reducing to normal, take out the elm wood for standby;

[0050] (3) Soaking treatment:

[0051] Put the elm wood treated in step (2) into the treatment solution for soaking for 2 hours, and the treatment solution is an aqueous solution of polyvinylpyrrolidone with a mass fraction of 0.4%;

[0052] (4) Drying treatment:

[0053] Put the elm wood after soaking treatment in step (3) into a drying chamber, and dry it until the overall water content is 43-45% for later use;

[0054] (5) Ultrasonic treatmen...

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PUM

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Abstract

The invention discloses an elm timber softening treatment method and belongs to the technical field of timber processing. The elm timber softening treatment method comprises the following steps of 1 timber preprocessing, 2 steam explosion treatment, 3 soaking treatment, 4 drying treatment, 5 ultrasonic treatment and 6 secondary drying treatment. The softening treatment has the remarkable softening effect on elm timbers, has the smaller influence on the original properties of the elm timbers and has a better usage value, the cracking rate is lower during processing, and fluffing is not likely to occur.

Description

technical field [0001] The invention belongs to the technical field of wood processing, and in particular relates to a method for softening elm wood. Background technique [0002] The elm tree has a straight trunk, a tall tree shape, thick green shade, strong adaptability, and fast growth. It is an important tree species for urban greening, street trees, garden shade trees, factory greening, and building shelterbelts. It often takes the form of shrubs in dry and severe cold places, and is sometimes used as hedgerows. And because of its strong germination ability of old stems and residual roots, it can be excavated from the wild to make bonsai. In forestry, it is also one of the main tree species for building windbreak forests, soil and water conservation forests and saline-alkali land afforestation. Elm is an important raw material for furniture and handicrafts. Although it has good bending properties, it still cannot meet the needs of actual processing. Therefore, it need...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K5/06B27K3/34
CPCB27K5/06B27K3/34
Inventor 徐学朋
Owner 阜南县环宇柳木工艺制品有限公司
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