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Producing method of spruce laminated layer materials

A manufacturing method and technology of laminated timber, which are applied in the direction of wood layered products, wood veneer joining, manufacturing tools, etc., can solve the problems of high cost, occupying land, difficult disposal of waste products, etc., and achieve the effect of simple method.

Inactive Publication Date: 2008-06-25
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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Problems solved by technology

Although the manufacturing process of this material is mature, it also has the problem of high cost (100,000-200,000 yuan / ton), and the waste products of FRP are difficult to handle, not only difficult to burn, but also difficult to decompose. lots of land

Method used

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  • Producing method of spruce laminated layer materials

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Embodiment Construction

[0024] The present invention specifically carries out material selection and processing according to the following steps:

[0025] Firstly, according to the patent application 200710178373.8, carry out the grading of the fir sapwood diameter-cut specification board, which specifically includes the following steps:

[0026] Step 1: Select a number of new Chinese fir logs with a diameter of more than 30 cm, a straight trunk, and no defects in appearance (including decay, bending, etc.);

[0027] Step 2: Carry out "rice" font blanking on the selected material;

[0028] Step 3: Saw the standard fir sapwood quarter-cut rough board, dry it in a drying kiln until the moisture content is lower than 12%, remove various wood defects, and finish it into 500mm×20mm×20mm (length×width×thickness) The standard slats are spare;

[0029] Step 4: Through visual inspection, the selected rough plate meets the following requirements: straight texture, uniform material, annual ring width less tha...

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Abstract

The invention disclose a manufacturing method for laminated veneer lumber of fir used in composites of wind blades, comprising the following steps: 1) fir sapwood dimension board is assembled to manufacture glulam wood beams which run in grain direction and are mutually parallel and glulam glue is painted among the glulam wood; 2) the glulam wood beams are sliced along radial direction into the laminated veneer lumber of fir with appropriate thickness; 3) the laminated veneer lumber of fir is steeped in and is coated with epoxy mixing dipping resin; 4) the laminated veneer lumber is assembled running in grain direction, which is glued through a hot press. The invention not only has the simple method, but also can produce a large quantity of laminated veneer lumber of fir that meets the requirements of the composites of the wind blades.

Description

technical field [0001] The invention relates to a manufacturing method of fir veneer laminated wood used for wind power generation blade composite materials. Background technique [0002] At present, the blades used for wind power generation are generally made of glass fiber reinforced plastic (referred to as FRP) composite materials. Although the manufacturing process of this material is mature, it also has the problem of high cost (100,000-200,000 yuan / ton), and the waste products of FRP are difficult to handle, not only difficult to burn, but also difficult to decompose. Lots of land. Therefore, it is necessary to develop a new low-cost, recyclable and environmentally friendly blade to replace the glass fiber reinforced plastic blade currently used in large quantities. [0003] my country is a country rich in timber resources. Chinese fir is one of the main species of timber widely grown in southern my country. It has a wide range of sources, a large amount of timber st...

Claims

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Application Information

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IPC IPC(8): B27D1/04B32B21/13B27D1/10B27K3/00B27G11/00B27D1/08C09J163/00C09J161/06
Inventor 黄晓东江泽慧任海青孙正军
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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