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Preparation method of anti-corrosion finger joint laminated board wood

A finger-jointed board and wood technology, which is applied in wood processing equipment, manufacturing tools, adhesive types, etc., can solve the problems of unstable structure and physical and chemical properties of finger-jointed boards, affecting indoor environmental quality, and large material loss, etc. , achieve the effect of reducing flammability risk, short curing time and low cost

Inactive Publication Date: 2021-07-23
广西贺州恒达板业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The release of formaldehyde in finger-jointed panels will change with the change of hot-pressing temperature and sizing amount, which will affect the quality of indoor environment for a long time
[0004] At the same time, the structure and physical and chemical properties of the above-mentioned finger-jointed boards are not very stable, with poor hardness and low toughness and strength.
The quality of blockboard is better than other finger-jointed boards, but hot pressing is required to attach the veneer, which results in large material loss and high cost

Method used

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  • Preparation method of anti-corrosion finger joint laminated board wood
  • Preparation method of anti-corrosion finger joint laminated board wood
  • Preparation method of anti-corrosion finger joint laminated board wood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for preparing anti-corrosion finger-jointed wood, comprising the following steps:

[0033] S1: Drying and peeling the fresh Eucalyptus grandis logs, sawing them into spare sawn timber, and then drying them to a moisture content of 10%;

[0034] S2: Cut the spare sawn timber into finger-joints of the required size with fixed width and length, tenon the finger-joints with a tenoning machine, and then vertically join the tenoned finger-joints with a docking machine growth bar;

[0035] S3: Apply glue to the side of the finger-jointed strips, and use a jigsaw machine to splice the finger-joined strips in parallel to form a board. After the board is assembled, dry it to a moisture content of 8%;

[0036] S4: Sand and edge-cut the finger-joint board with a sander and a fine-cut saw; pack the qualified products into storage;

[0037] The adhesive used for gluing is prepared from raw materials including the following parts by weight: 300 parts of formaldehyde, 150 pa...

Embodiment 2

[0045] A method for preparing anti-corrosion finger-jointed wood, comprising the following steps:

[0046] S1: Drying and peeling the fresh Eucalyptus grandis log, sawing it into spare sawn timber, and then drying it to a moisture content of 11%;

[0047] S2: Cut the spare sawn timber into finger-joints of the required size with fixed width and length, tenon the finger-joints with a tenoning machine, and then vertically join the tenoned finger-joints with a docking machine growth bar;

[0048] S3: Apply glue to the side of the finger-jointed strips, and use a jigsaw machine to splice the finger-joined strips in parallel to form a board. After the board is assembled, dry it to a moisture content of 10%;

[0049] S4: Sand and edge-cut the finger-joint board with a sander and a fine-cut saw; pack the qualified products into storage;

[0050] The adhesive used for gluing is prepared from raw materials including the following parts by weight: 400 parts of formaldehyde, 250 parts ...

Embodiment 3

[0058] A method for preparing anti-corrosion finger-jointed wood, comprising the following steps:

[0059] S1: Drying and peeling the fresh Eucalyptus grandis log, sawing it into spare sawn timber, and then drying it to a moisture content of 12%;

[0060] S2: Cut the spare sawn timber into finger-joints of the required size with fixed width and length, tenon the finger-joints with a tenoning machine, and then vertically join the tenoned finger-joints with a docking machine growth bar;

[0061] S3: Apply glue to the side of the finger-jointed strips, and use a jigsaw machine to splice the finger-joined strips in parallel to form a board. After the board is assembled, dry it to a moisture content of 10%;

[0062] S4: Sand and edge-cut the finger-joint board with a sander and a fine-cut saw; pack the qualified products into storage;

[0063] The adhesive used for gluing is prepared from raw materials including the following parts by weight: 600 parts of formaldehyde, 220 parts ...

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Abstract

The invention discloses a preparation method of an anti-corrosion type finger joint laminated board wood. The preparation method comprises the following steps that S1, giant eucalyptus log is air-dried, peeled, sawn into standby sawn timber and dried; S2, the standby sawn timber is fixed in width and length and cut into finger joint pieces, mortising is conducted through a mortising machine, and then tenoning is conducted through a butt joint machine to be longitudinally connected into long strips; S3, the side faces of the finger joint long strips are glued, the finger joint long strips are spliced into a board through a board splicing machine, and after board splicing is completed, drying is conducted; and S4, sanding and edge cutting are conducted through a sanding machine and a precision cutting saw; and packaging and warehousing are carried out after passing inspection. An adhesive adopted for gluing is prepared from the following raw materials: formaldehyde, urea, melamine, lignin, polyvinyl alcohol, ammonium chloride, tributyl citrate, an initiator, sucrose ester, konjaku flour, aluminum hydroxide ultrafine powder, sodium carboxymethyl cellulose and polyaniline. The preparation method is simple in process and low in cost, and a prepared finger joint laminated board has high mechanical performance, corrosion resistance and flame retardance.

Description

technical field [0001] The invention belongs to the technical field of wood preparation, and in particular relates to a method for preparing anti-corrosion finger-jointed board wood. Background technique [0002] Finger-joint board, the finger-joint board is spliced ​​by multiple wooden boards, and the plywood is no longer glued up and down. Since the vertical boards use a zigzag interface, it is similar to the fingers of two hands crossed. The purpose is the same as that of woodworking board, except that the amount of glue used in the production process of finger-jointed board is much less than that of woodworking board, so it is a kind of board that is more environmentally friendly than woodworking board. More and more people have begun to choose finger-jointed board. boards to replace wood boards. There is no need to paste splints on the top and bottom of the finger joint, and the amount of glue used is greatly reduced. [0003] In the production process of finger-joint...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27M1/08B27D1/10C09J161/24C09J197/00C09J11/06C09J11/08C09J11/04
CPCB27M1/08B27D1/10C09J161/24C09J11/06C09J11/08C09J11/04C08K2003/2227C08L2201/02C08L2205/035
Inventor 陶晟陶永恒倪莉陈萍张卫斌
Owner 广西贺州恒达板业股份有限公司
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