Bamboo surf green plate joist lumber and manufacturing method thereof

A manufacturing method and technology of bamboo green board, which are applied in the direction of manufacturing tools, chemical instruments and methods, wood layered products, etc., can solve the problems of being difficult to decompose, difficult to burn, occupying land, etc., and achieve the effect of abundant resources and reduced manufacturing costs.

Inactive Publication Date: 2008-08-27
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 has the problem of high cost (100,000-200,000 yuan/ton), a...

Method used

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  • Bamboo surf green plate joist lumber and manufacturing method thereof
  • Bamboo surf green plate joist lumber and manufacturing method thereof

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Embodiment Construction

[0019] The concrete processing steps of the present invention are as follows:

[0020] First, harvest 5 to 6-year-old bamboos with a length of 12 to 17 meters (about 15 meters) and a diameter of more than 10 centimeters at the ends, then cut them off from the ends of the roots more than 1 meter, take the length of 1.25 meters, and straighten the bamboo sections. A few pieces are broken on the smashing machine, and the specifications of the broken bamboo pieces are 1250mm×16mm×9mm (length×width×thickness); then they are processed into specification bamboo pieces (leave bamboo green) on the four-sided planer, and the specification is 1250mm×12mm× 5mm;

[0021] Secondly, the bamboo leaves are sent into the carbonization tank to carbonize the bamboo leaves. The carbonization process is: temperature 120 ° C, pressure 1 atmosphere, time 120 minutes; The moisture content of the flakes should be controlled below 8%; then use the DY-D99 multifunctional dynamic Young's modulus measurin...

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Abstract

The invention discloses a method for manufacturing the squared timber of the green bamboo plate from the bamboo, which comprises the following steps: step 1: the cut bamboo is processed into the green bamboo slice with a proper length, width and thickness; step 2: the green bamboo sheet is carried out a carbonization treatment, and the carbonization conditions is: temperature in the range of 100 to 140 DEG C, pressure in the range of 0.5 to 1.5 atm and time in the range of 60 to 180 minute; step 3: the bamboo slice after carbonization is dried, and the water content of the bamboo slice is controlled below 8 percent; step 4: the bamboo slice is coated with adhesive, and assembled into blank according to the green bamboo facing toward the same direction, and then formed into a single-layer blank piece through hot pressing; step 5: the single-layer blank piece is placed into the impregnated resin and then taken out to dry, and then two-layer or over-two-layer blank piece is assembled into blank along the grain and formed into the square timber of the green bamboo plate through hot pressing. The square timber of the green bamboo plate made by the method both meets the requirement of wind turbine blades and has low manufacturing cost, and can be recovered and reused.

Description

technical field [0001] The invention relates to a square material that meets the requirements of wind power generation blades by adopting a bamboo green board and a manufacturing method thereof. Background technique [0002] At present, blades used for wind power generation are generally made of glass fiber reinforced plastic (referred to as FRP) composite materials. Although this material has a mature manufacturing process, it 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, a new low-cost, recyclable and environmentally friendly blade must be developed to replace the currently widely used FRP blades. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide a method for manufacturing moso bamboo green board, which not only meets the requirements of wind power generation bla...

Claims

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Application Information

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IPC IPC(8): B27D1/04B32B21/13B27D1/06
Inventor 黄晓东江泽慧任海青陈玲
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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