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Production method of poplar-eucalyptus laminated veneer lumber (LVL) stair railing

A stair handrail and production method technology, applied in the field of wood product manufacturing, can solve the problems of high cost and waste of high-quality precious wood, etc., and achieve the effect of strong three-dimensional effect, improving competitiveness and protecting resources

Inactive Publication Date: 2013-06-12
NANJING FORESTRY UNIV
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AI Technical Summary

Problems solved by technology

The existing wooden stair handrails are mainly made of precious wood through milling, which wastes a lot of high-quality precious wood
With the gradual reduction of wood resources, the cost of producing such wooden stair railings is getting higher and higher

Method used

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Experimental program
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Effect test

Embodiment Construction

[0014] The production process of Yang-eucalyptus LVL stair railing is as follows:

[0015] 1) Respectively cut poplar and eucalyptus into veneers above 3mm;

[0016] 2) Carry out enzyme treatment to veneer;

[0017] In the enzyme treatment process, if the enzyme treatment temperature is too high, the enzyme activity will decrease rapidly, and if the temperature is low, the hydrolysis catalytic rate of the enzyme will decrease. Therefore, the temperature of the water bath should be kept at 50°C.

[0018] With the increase of enzyme treatment time, the mechanical properties and surface wetting properties of the veneer will increase, but the breakage of glycosidic bonds in cellulose may cause the decline of mechanical properties and surface wetting properties. Therefore, the enzyme treatment time should not be too long. long. Within a certain range, the increase of enzyme dosage is beneficial to the improvement of poplar surface properties, but beyond a certain range, the modif...

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Abstract

In order to fully utilize the fast growing wood resources of poplar and eucalyptus, and reduce the production cost of a wooden stair railing, the invention provides a production technology method of a poplar-eucalyptus laminated veneer lumber (LVL) stair railing; and the method comprises the steps of: respectively cutting the poplar and the eucalyptus into more than 3mm of veneers in a rotary way; carrying out enzyme treatment on the veneers; after that, drying the veneers, and controlling the water content to be 10-12%; carrying out gluing assembly on the veneers; carrying out hot-press treatment, wherein the pressure is about 1.2MPa, the temperature is 100-150 DEG C, and the time is controlled to be 1min / mm; making strips by a multiple-blade saw; carrying out profile milling; and finally, polishing and assembling.

Description

1. Technical field [0001] The invention discloses a production method of poplar-eucalyptus laminated veneer lumber stair handrails, mainly comprising a production method of poplar-eucalyptus laminated veneer lumber and a production method of stair handrails based on poplar-eucalyptus laminated veneer lumber, It belongs to the field of wood product manufacturing. 2. Background technology [0002] With the improvement of living standards, people's requirements for home environment are getting higher and higher, and their awareness of environmental protection is getting stronger and stronger, so the demand for wood-based stair handrails is increasing. Existing wooden stair railings are mainly made of precious wood through milling, which wastes a large amount of high-quality precious wood. With the gradual reduction of wood resources, the cost of producing such wooden stair railings is getting higher and higher. Our country is very rich in fast-growing poplar and eucalyptus re...

Claims

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Application Information

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IPC IPC(8): B27M1/08B27M3/12
Inventor 朱捷李绍成朱典想孙献娥
Owner NANJING FORESTRY UNIV
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