Production method of weather-proof low-formaldehyde medium-density fiber wardrobe special board

A production method and medium-density technology, applied in the field of wood-based panels, can solve problems such as sharp teeth, high requirements for processing equipment, and non-environmental protection

Inactive Publication Date: 2019-02-12
广西横州丽冠环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Woodworking boards (commonly known as large core boards) have different materials and densities of solid wood strips inside, and are easy to warp and deform after simple drying treatment; the surface is relatively rough, and a large amount of glue or paint is usually used, which is relatively unenvironmental. High release, pungent odor
Particleboard has a granular structure inside, which is not easy to mill, and it is easy to cause sharp tooth phenomenon when cutting the board, so the requirements for processing equipment are relatively high
Solid wood finger joint board is easy to deform and crack
Good solid wood boards are generally expensive and difficult to promote and use on a large scale
Conventional fiberboard has poor moisture resistance and a large expansion coefficient after absorbing water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A method for producing weather-resistant low-aldehyde medium-density fiber wardrobe special board, characterized in that: the specific steps are:

[0057] (1) Raw material pretreatment: Mix eucalyptus scraps and other miscellaneous woods evenly according to the weight ratio of 1:0.3, and cut them into pieces with a length of 3-5cm and a width of 0.5-0.7cm;

[0058] (2) Sieving: Sieve the wood chips obtained above to remove silt and debris with a particle size of less than 0.2cm, and remove iron through strong magnetic attraction;

[0059] (3) Cooking and softening: transport the wood chips into the cooking tank, add an appropriate amount of water to soak for 15 minutes, then pass steam into the cooking tank, keep the pressure in the tank at 0.18Mpa, and cook for 2 minutes to obtain cork with a water content of 75% piece;

[0060] (4) Grinding: transport the cork chips obtained by cooking to a refiner for grinding at a speed of 2000r / min, and grind for 10min to separate...

Embodiment 2

[0078] A method for producing weather-resistant low-aldehyde medium-density fiber wardrobe special board, characterized in that: the specific steps are:

[0079] (1) Raw material pretreatment: Mix eucalyptus scraps with other miscellaneous woods according to the weight ratio of 1:0.4, and cut them into pieces with a length of 3-5cm and a width of 0.5-1cm;

[0080] (2) Sieving: Sieve the wood chips obtained above to remove silt and debris with a particle size of less than 0.2cm, and remove iron through strong magnetic attraction;

[0081] (3) Cooking and softening: transport the wood fragments into the cooking tank, add an appropriate amount of water to soak for 20 minutes, then pass steam into the cooking tank, keep the pressure in the tank at 0.16Mpa, cook for 3 minutes, and obtain cork with a water content of 80% after cooking piece;

[0082] (4) Grinding: transport the cork chips obtained by cooking to a refiner for grinding at a speed of 2500r / min, and grind for 8 minutes...

Embodiment 3

[0100] A method for producing weather-resistant low-aldehyde medium-density fiber wardrobe special board, characterized in that: the specific steps are:

[0101] (1) Raw material pretreatment: Mix eucalyptus scraps and other miscellaneous woods evenly according to the weight ratio of 1:0.45, and cut them into pieces with a length of 3-5cm and a width of 0.8-1cm;

[0102] (2) Sieving: Sieve the wood chips obtained above to remove silt and debris with a particle size of less than 0.2cm, and remove iron through strong magnetic attraction;

[0103] (3) Cooking and softening: transport the wood chips into the cooking tank, add an appropriate amount of water to soak for 30 minutes, then pass steam into the cooking tank, keep the pressure in the tank at 0.15Mpa, cook for 4 minutes, and obtain cork with a water content of 85% after cooking piece;

[0104] (4) Grinding: transport the cork chips obtained by cooking to a refiner for grinding at a speed of 3000r / min, and grind for 5 minu...

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Abstract

The invention discloses a production method of a weather-proof low-formaldehyde medium-density fiber wardrobe special board. The preparation method comprises the following steps of (1) pretreating rawmaterials, (2) screening, (3) cooking and softening, (4) grinding, (5) applying adhesives and drying, (6) pre-pressing, (7) hot pressing, (8) sawing and sanding, (9) veneering and hot pressing, and (10) edge cutting to obtain a finished product. According to the production method, eucalyptus barks and branches and waste leftover materials left in the board manufacturing process are taken as the main raw materials, other miscellaneous wood is added, waste is changed into things of value, so that full and effective utilization of the wood resources can be realized; modified paraffin and the weather-proof urea-formaldehyde resin adhesives are added, the production process is strictly controlled, so that the waterproof and weather-proof performance is greatly improved, the formaldehyde content is low, the medium-density fiber wardrobe special board is prepared, the prepared medium-density fiber wardrobe special board has the advantages of being environmentally friendly, low in formaldehyde and good in weather resistance, and is a safe, environment-friendly and low-formaldehyde wardrobe special board.

Description

technical field [0001] The invention belongs to the technical field of wood-based panels, in particular to a production method of a weather-resistant low-aldehyde medium-density fiber wardrobe special panel. Background technique [0002] Wood-based panels are boards or molded products that are made of wood or other non-wood plants, separated into various unit materials by certain mechanical processing, and glued with or without adhesives and other additives. It mainly includes three major categories of products: plywood, shaving (particle) board and fiberboard, with hundreds of extended products and deep-processed products. Plywood is made by steaming and softening logs, rotary cutting into large sheets, and then placing the wood fiber directions perpendicular to each other, bonding them with synthetic resin glue with good water resistance, and then pressurizing, drying, sawing, and surface trimming. of plates. The number of layers is an odd number, generally 3 to 13 layer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27M1/08B27N1/00B27N3/04B27N3/12B27N3/18
CPCB27M1/08B27N1/003B27N3/04B27N3/12B27N3/18
Inventor 刘伟
Owner 广西横州丽冠环保材料有限公司
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