Bamboo wood composite plywood for concrete form panel and manufacturing method thereof

A bamboo-wood composite and manufacturing method technology, which is applied in the direction of manufacturing tools, wood layered products, and the joining of wooden veneers, which can solve the problems of poor overall performance of the board, large sawing road loss, and difficult boards.

Inactive Publication Date: 2009-07-22
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the loss of the sawing path in the processing of wooden strips is relatively large, and there are certain difficulties in processing large-format boards with the technical solution disclosed in this utility model patent, and the overall performance of the processed boards is poor

Method used

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  • Bamboo wood composite plywood for concrete form panel and manufacturing method thereof
  • Bamboo wood composite plywood for concrete form panel and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] Embodiment 1, moso bamboo, fir composite concrete building template

[0096] Such as figure 1 As shown, the concrete building template (that is, bamboo-wood composite plywood, also known as bamboo-fir composite concrete building template) includes nine layers, the surface layer of the slab is a 1.1 mm thick bamboo mat 1, and the subsurface layer is a 2.5 mm thick bamboo mat. Chinese fir veneer (the first log rotary cut veneer) 2, the middle five layers (core layer) are 1.1 mm thick bamboo curtain 3 and 2.5 mm thick fir veneer 2, the material of each layer can be seen from the cross section The thickness of the concrete building template obtained by hot pressing the slab is 12 millimeters.

[0097] The production method of the composite concrete building template provided by the present embodiment may include the following specific steps:

[0098] 1. Saw cutting and rotary cutting: Saw Chinese fir into fir wood sections according to a predetermined size, and rotary cut...

Embodiment 2

[0113] Embodiment 2, moso bamboo, poplar composite concrete building template

[0114] Such as figure 1 As shown, the concrete building formwork (i.e. bamboo-wood composite plywood, also known as bamboo-poplar composite concrete building formwork) includes nine layers, the surface layer of the slab is a 1.1 mm thick bamboo mat 1, and the subsurface layer is a 2.5 mm thick bamboo mat. Poplar veneer (the first log rotary-cut veneer) 2, the middle five layers (core layer) are 1.1 mm thick bamboo curtain 3 and 2.5 mm thick poplar veneer 2, each layer can be seen from the section The material; the thickness of the plywood obtained by hot pressing the slab is 12 mm.

[0115] The production method of the composite concrete building template provided by the present embodiment may include the following specific steps:

[0116] 1. Sawing and rotary cutting: the poplar is sawed into poplar wood sections according to the predetermined size, and rotary cut into poplar veneer (the first l...

Embodiment 3

[0131] Embodiment 3, moso bamboo, fir composite concrete building template

[0132] Such as figure 2 As shown, the concrete building template (that is, bamboo-wood composite plywood, also known as bamboo-fir composite concrete building template) includes seven layers, and the surface layer of the slab is a 1.5 mm thick fir veneer (the second log rotary-cut veneer ) 4, the subsurface layer is 2.5 mm thick fir veneer (the first log rotary cut veneer) 2, the middle three layers (core layer) are two layers of 4.3 mm thick bamboo curtain 3 and a layer of 2.5 mm thick fir veneer Slab 2, the material of each layer can be seen from the section; the thickness of the concrete building formwork obtained by hot pressing the slab is 15 mm.

[0133] The production method of the composite concrete building template provided by the present embodiment may include the following specific steps:

[0134] 1. Saw cutting and rotary cutting: the Chinese fir is sawed into fir wood sections accordi...

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Abstract

The invention relates to a bamboo wood composite plywood for a concrete template and a method for manufacturing the same. The bamboo wood composite plywood is provided with a body which is manufactured from a first log rotary cut veneer and a bamboo curtain in alternate arrangement through hot pressing; the body has odd layers; and the first log rotary cut veneer is positioned on the surface layer of the body. The outer side of the body can also be a composite bamboo mat or a veneer. The method for manufacturing the bamboo wood composite plywood comprises the steps of carrying out assembly, prepressing, aging, and hot pressing on the log rotary cut veneer, the bamboo curtain and/or the bamboo mat, and the like. The bamboo wood composite plywood realizes combination of bamboo and the log rotary cut veneer, improves the utilization rate of wood and the bamboo, simultaneously improves the performance greatly, has a more stable structure, and greatly improves bonding strength and transverse static bending strength; and in the manufacturing process, the method does not need to carry out complex gum dipping and other treatment on the bamboo curtain, the bamboo mat, and the like, greatly reduces the use amount of an adhesive, reduces the machining cost, and is favorable for environmental protection.

Description

technical field [0001] The invention belongs to the field of wood processing, and in particular relates to a bamboo-wood composite plywood for concrete formwork and a manufacturing method thereof. The bamboo-wood composite plywood is a plywood produced by hot pressing with artificial bamboo and wood as raw materials. Background technique [0002] Structural plywood includes building formwork, container floor, automobile compartment floor, wooden structure cladding and other plywood applied to stressed components. Generally, wood veneers or bamboo curtains, bamboo mats, etc. are glued together with adhesives such as phenolic resin or isocyanate, and then Made by hot pressing. Among them, bamboo structure plywood is used in a large amount, but its processing technology is complicated. Among them, the dipping operation of bamboo has high requirements on the control of process conditions, the process cycle is long, and the amount of adhesive is large, which is not conducive to i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/04B32B21/13B32B21/06B27D1/06B27D1/08
Inventor 费本华姚利宏陶仁中虞华强
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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