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Continuous forming composite structure material and manufacturing method thereof

A composite structure, sawn timber technology, applied in the direction of manufacturing tools, chemical instruments and methods, wood layered products, etc., can solve problems such as slow heat transfer, and achieve the effect of more product specifications, less investment and high production efficiency

Active Publication Date: 2014-10-08
贵州新锦竹木制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The continuous press usually uses hot oil or steam as the heat source, and the heat transfer speed is not fast. The continuous press for oriented strand board with an annual output of 300,000 cubic meters is as long as 40m, and the investment in equipment needs about 25 million euros

Method used

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  • Continuous forming composite structure material and manufacturing method thereof
  • Continuous forming composite structure material and manufacturing method thereof
  • Continuous forming composite structure material and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Composite structural panels with strip laminated lumber (OSL) as the core layer, its structure is as follows figure 1 ,

[0030] Manufacturing methods include the following:

[0031] a. Sorting and finishing of wooden veneers. The moisture content of wooden veneers is ≤9%. The veneers can be milled longitudinally and beveled according to needs, and the tight side and loose side are separated, and glue is applied on both sides according to the requirements. The adhesive is selected Phenolic glue, and a certain amount of insect repellent and about 10% flour can be added. Double-sided glue amount 320g / m 2 ;

[0032] b. Long-strip laminated lumber (OSL) treatment, the long-strip laminated lumber (OSL) is sanded to a fixed thickness to remove the surface cured adhesive layer as a core board, and the small area left by sanding is sanded by a manual sander , and process the longitudinal ends of the two OSLs into a beveled overlapping shape, and apply glue on the beveled su...

Embodiment 2

[0041] The structure of the composite structural board with sawn timber as the core layer is as follows: figure 2 ,

[0042] Its manufacturing method includes as follows:

[0043] a. Sorting and finishing of wooden veneers, the moisture content of wooden veneers is ≤10%, the veneers can be milled longitudinally and beveled according to needs, and the tight side and loose side are separated, and glue is applied on both sides as required, and the adhesive is selected Urea-formaldehyde glue, glue amount 300g / m 2 , add 15% flour and other additives in the glue;

[0044] b. Sawn timber treatment. The sawn timber has been dried and planed, with a thickness of 15-35mm, and the end of the board is processed into a finger-joint surface, and the finger-joint surface and sides are coated with urea-formaldehyde glue;

[0045] c. Assembling billets: divide the wooden veneer and sawn timber into three billet sets, and divide the upper and lower veneer layers and the sawn timber core mat...

Embodiment 3

[0053] The structure of the composite structural plate with the edge strip as the core layer is as follows: image 3 ,

[0054] Its manufacturing method includes as follows:

[0055] a. Sorting and finishing of wooden veneers, the moisture content of wooden veneers is ≤10%, the veneers can be milled longitudinally and beveled according to needs, and the tight side and loose side are separated, and glue is applied on both sides as required, and the adhesive is selected Phenolic glue, glue amount 340g / m 2 , add 15% flour in the glue;

[0056] b. For plywood rough sapwood treatment, container bottom plywood is selected. The annual production volume of this plywood in China is about 1 million m3. Add one more saw blade outside the saw blade, and the distance between the two saw blades is about 20-30mm, so as to obtain a slat with a thickness of 28.5mm and a width of 20-30mm. Change the thickness of the side strips to the width of the sides, and process the end faces of the sid...

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Abstract

The invention discloses a continuous forming composite structure material and a manufacturing method of the continuous forming composite structure material. According to the structure, an upper surface layer material and a lower surface layer material respectively comprise 2-4 layers of longitudinal veneer, or the upper surface layer material and the lower surface layer material respectively comprise 1-4 layers longitudinal veneer and 1-2 layers of transverse veneer; a core layer is a batten obtained after the edges of a shaving board or converted timber or plywood are sawn. The continuous forming composite structure material has the advantages that battens of shaving boards produced in a large scale, the converted timber, the plywood left after being processed and all kinds of coniferous wood and broad-leaved wood veneer can be made into composite structure materials with continuous length through a single fixed high-frequency press; the continuous forming composite structure material has the advantages that investment is low, efficiency is high, the number of product specifications is large, and the requirements for bottom beams, bottom plates and other structure materials of automobiles, trains, containers and ships are met.

Description

technical field [0001] The present invention relates to a continuously formed composite structural material and its manufacturing method. The multi-layer veneer is used as the surface layer to produce a continuous long composite structural material and its manufacturing method through a single high-frequency press, which belongs to the wood industry. Wood-based panel manufacturing technology field. Background technique [0002] Engineering structural materials need to have certain mechanical properties, appearance quality, impact resistance and aging resistance. The usual production method is multi-layer hot press, and the length of the produced plates is limited, which cannot meet various engineering needs; for thick plates, the hot pressing time is longer and the production efficiency is low. Moreover, the rough edges of the board need to be sawed off, which reduces the utilization rate. [0003] The continuously formed wood-based panel has an arbitrary length and a high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/08B27D1/04B27D1/10B27D5/00B32B21/13
Inventor 许斌沈文益陈立衡
Owner 贵州新锦竹木制品有限公司
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