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Manufacturing method of thin saw board (China fir) laminated board

A manufacturing method and technology of laminated timber, applied in the direction of wood layered products, wooden veneer joints, manufacturing tools, etc., can solve problems such as high cost, difficult to decompose, and difficult to dispose of waste products, and achieve the effect of simple method

Inactive Publication Date: 2009-12-16
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Manufacturing method of thin saw board (China fir) laminated board
  • Manufacturing method of thin saw board (China fir) laminated board
  • Manufacturing method of thin saw board (China fir) laminated board

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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 discloses a method for manufacturing fir thin-sawn laminated lumber used as a composite material for wind power blades. Glulam wood squares, graded Chinese fir sapwood diameter-cut specification boards are coated with glue glue; 2) The glued wood squares are sawn along the radial direction and processed into fir thin sawn boards with a thickness of 2 to 4mm; 3) For the The thin sawn fir boards are pressurized to impregnate the epoxy mixed impregnating resin; 4) The thin sawn fir boards are assembled along the grain and glued together by a hot press. The method of the invention is simple and convenient, and through the method of the invention, the Chinese fir thin-sawn laminated lumber meeting the requirements of wind power generation blade composite materials can be mass-produced.

Description

technical field [0001] The invention relates to a manufacturing method of a fir thin sawn board laminated material 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 amou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27D1/04B32B21/13B27K3/08B27K3/34C09J161/06C09J163/00
Inventor 江泽慧黄晓东任海青陈玲
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY