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Method for producing fireproof flame-retarding medium-density fiber plate special for office table

A fire retardant and production method technology, applied in the direction of fiber raw materials, fiber raw material processing, wood veneer bonding, etc., can solve the problems of surface cladding falling off, processing difficulties, bursting, etc.

Inactive Publication Date: 2019-03-01
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

High-density fiberboard has high density, is difficult to process, and is easy to burst when nailing and installing accessories; while low-density fiberboard has low density, large gaps between wood fibers, and is easy to absorb water and swell, causing the surface covering to fall off or even the board to disintegrate. It is used less in office furniture

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A method for producing a fire-resistant and flame-retardant medium-density fiber desk special board, the specific steps are:

[0050] (1) Raw material pretreatment: Mix eucalyptus scraps and other miscellaneous woods evenly according to the weight ratio of 1:0.4, cut into pieces with a length of 4-5cm and a width of 0.5-0.6cm;

[0051] The eucalyptus leftovers are eucalyptus bark, branches and leftover waste leftovers from the manufacture of boards; the miscellaneous woods are pine and eucalyptus; the wood is left to air for 15 days before use;

[0052] (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;

[0053] (3) Cooking and softening: transport the wood fragments 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 obta...

Embodiment 2

[0072] A method for producing a fire-resistant and flame-retardant medium-density fiber desk special board, the specific steps are:

[0073] (1) Raw material pretreatment: Mix eucalyptus leftovers and other miscellaneous woods according to the weight ratio of 1:0.5, and cut them into pieces with a length of 4-5cm and a width of 0.8-1cm;

[0074] The eucalyptus leftovers are eucalyptus bark, branches and leftover waste leftovers from the manufacture of boards; the miscellaneous woods are pine and ash, and the wood is left to air for 18 days before use;

[0075] (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;

[0076] (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 0.18Mpa, cook for 3 minutes, and obta...

Embodiment 3

[0095] A method for producing a fire-resistant and flame-retardant medium-density fiber desk special board, the specific steps are:

[0096] (1) Raw material pretreatment: Mix eucalyptus scraps and other miscellaneous woods evenly at a weight ratio of 1:0.6, cut into pieces with a length of 4-5cm and a width of 0.5-0.7cm;

[0097] The eucalyptus leftovers include eucalyptus bark, branches and leftover waste leftovers from the manufacture of boards; the miscellaneous woods include ash and eucalyptus, and the wood is left to air for 20 days before use;

[0098] (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;

[0099] (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 0.20Mpa, cook for 2 minutes, and obtain co...

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Abstract

The invention discloses a method for producing a fireproof flame-retarding medium-density fiber plate special for an office table. The method comprises the steps of (1) raw material treatment, (2) screening, (3) steaming and softening, (4) grinding, (5) sizing and drying, (6) pre-pressing, (7) hot pressing, (8) sawing and sanding, (9) facing hot pressing and (10) edge cutting. According to the method, eucalyptus bark, branches and scraps left after plate manufacturing are adopted as main raw materials, other miscellaneous trees are added, waste is turned into wealth, and full and effective utilization of timber resources can be achieved. Modified paraffin and an inflaming retarding urea-formaldehyde resin adhesive are added, so that the fireproof flame retarding performance is greatly improved; and the manufactured medium-density fiber plate special for the office table is good in fireproof and flame retarding performance, good in water resistance, low in formaldehyde content, safe andenvironment-friendly.

Description

technical field [0001] The invention belongs to the technical field of wood-based panels, and in particular relates to a production method of a fire-resistant and flame-retardant medium-density fiber special-purpose panel for desks. 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...

Claims

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Application Information

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IPC IPC(8): B27N3/08B27N3/04B27N3/18B27D1/08D21B1/02D21B1/06D21C3/22B27N1/00
CPCB27N3/08B27D1/08B27N1/00B27N3/04B27N3/18D21B1/02D21B1/061D21C3/22
Inventor 郑涛
Owner 广西横州丽冠环保材料有限公司
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