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Lumber-core board and manufacture method thereof

A blockboard and log technology, applied in the direction of manufacturing tools, wood layered products, wood processing equipment, etc., can solve the problems of high cost, poor blockboard gluing performance, difficulty in manufacturing large-format blockboard, etc., to achieve gluing high intensity effect

Active Publication Date: 2011-11-16
BEIJING FORESTRY MACHINERY RES INST OF STATE FORESTRY ADMINISTRATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned production process needs to process small slats and bond many small slats. The process is relatively complicated. Since the core board is formed by bonding small slats, the blockboard produced has poor bonding performance and low transverse static bending strength. , high cost; in addition, the utilization rate of Chinese fir is very low, less than 65%, because the sawing board is limited by the width, it is difficult to manufacture large-format blockboard; moreover, it is made of sawing board The blockboard strength is relatively low
Although the technical solutions provided by the above-mentioned utility model patents can improve the performance of blockboards to a certain extent, they are all improvements made on the basis of core blockboards spliced ​​with existing wooden strips, and boards must be used. As the substrate, it is impossible to really change the existing problems of blockboards such as poor bonding strength, poor transverse static bending strength, difficulty in processing large-format blockboards, etc., and it is impossible to obtain blockboards whose performance indicators greatly exceed the national standard. The utilization rate is low, the processing technology is more complicated, and the energy consumption is larger

Method used

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  • Lumber-core board and manufacture method thereof
  • Lumber-core board and manufacture method thereof
  • Lumber-core board and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1, fir blockboard

[0049] Such as figure 1 As shown, the Chinese fir blockboard provided in this example adopts three layers of Chinese fir rotary-cut thick veneer with a thickness of 4.8 mm, and is processed into a fine wood veneer after drying, gluing, billet assembly, pre-pressing, aging, and hot pressing. Woodworking board, the thickness of the processed blockboard is about 12 mm, among which, the wood grain direction of the three-layer veneer is criss-crossed and perpendicular to each other (the straight line shown in the figure shows the wood grain direction of the log rotary-cut veneer).

[0050] The specific production steps of the fir blockboard provided by the present embodiment are as follows:

[0051] 1. Sawing: Saw the Chinese fir into fir sections according to the required size;

[0052] 2. Rotary cutting: the fir wood section is rotary cut into a log rotary veneer with a thickness of 4.8 mm;

[0053] 3. Drying: Dry the rotary-cut log veneer...

Embodiment 2

[0066] Embodiment 2, masson pine blockboard

[0067] Such as figure 2 As shown, the masson pine blockboard provided in this embodiment adopts 5 layers of masson pine rotary-cut thick veneer with a thickness of 4.50 mm, and is processed through steps such as drying, gluing, forming blanks, pre-pressing, aging, and hot pressing. Blockboard, the thickness of the processed blockboard is about 18 mm, among which, the wood grain direction of the five-layer log rotary-cut veneer is criss-crossed and perpendicular to each other (the straight line shown in the figure shows the direction of the log rotary-cut veneer). wood grain direction).

[0068] The concrete production steps of the masson pine blockboard provided by the present embodiment are as follows:

[0069] 1. Sawing: Saw the masson pine into masson pine wood sections according to the required size;

[0070] 2. Rotary cutting: the masson pine wood section is rotary cut into a log rotary veneer with a thickness of 4.50 mm; ...

Embodiment 3

[0084] Embodiment 3, poplar blockboard

[0085] Such as figure 2 As shown, the poplar blockboard provided in this example uses 5 layers of poplar veneer with a thickness of 3.30 mm and is processed into a blockboard through steps such as drying, gluing, billet assembly, pre-pressing, aging, and hot pressing. , the thickness of the processed blockboard is about 12 mm, among which, the wood grain direction of the five-layer log rotary-cut veneer is criss-crossed and perpendicular to each other (the straight line shown in the figure shows the wood grain direction of the log rotary-cut veneer) .

[0086] The concrete production steps of the poplar blockboard provided by the present embodiment are as follows:

[0087] 1. Saw cutting: saw the poplar wood into poplar wood sections according to the required size;

[0088] 2. Rotary cutting: the poplar wood section is rotary cut into a log rotary veneer with a thickness of 3.30 mm;

[0089] 3. Drying: Dry the log rotary-cut veneer...

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Abstract

The invention relates to a fine wooden board and a manufacturing method thereof, wherein the fine wooden board is manufactured by hot-pressing at least three layers of log rotary cut veneers. The manufacturing method for the fine wooden board comprises the steps of assembling, prepressing, placing, hot-pressing, and the like of the log rotary cut veneers. The fine wooden board adopts log rotary cut plank boards as the veneers, has higher strength, has the quality and various performance indexes which accord with GB / T5849-2006 standards, and effectively solves the problems that the prior fine wooden board has poor gluing strength and poor transverse bending strength and the like. The manufacturing method for the fine wooden board does not comprise a step of manufacturing the veneers by gluing, but adopts once formation of the rotary cut thick veneers, needs no veneer treatment, simplifies processing technology of the prior fine wooden board, improves production efficiency, reduces use amount of an adhesive at the same time, manufactures more environment-friendly products, can reduce production cost greatly, and improves comprehensive utilization ratio of the wood at the same time.

Description

technical field [0001] The invention belongs to the field of wood processing, and relates to a blockboard and a manufacturing method thereof, in particular to a blockboard manufactured by hot pressing with fir, pine, poplar or eucalyptus as raw materials. Background technique [0002] At present, the application market of blockboard is extremely broad, and the main application areas are as follows: ①Application in modern architectural doors: At present, the main components of many architectural doors are made of blockboard, such as the door stand, hat head , door core board and door line, etc.; ②Application in interior decoration materials: blockboard is the main material in modern interior decoration. As consumers put forward higher requirements for interior decoration materials, blockboard will become a modern The main wood material in decoration; ③Blockboard plays an important role in modern furniture, especially in panel disassembled furniture. Its weight is close to tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27D1/04B32B21/13
Inventor 费本华姚利宏陶仁中赵荣军
Owner BEIJING FORESTRY MACHINERY RES INST OF STATE FORESTRY ADMINISTRATION
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