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Manufacturing method for fiberboard with electromagnetic shielding function

A technology of functional fibers and manufacturing methods, which is applied in the direction of manufacturing tools, flat products, and pretreatment of molding materials, and can solve the electromagnetic wave shielding function of wood composite or fiberboard. There is little research on the electromagnetic wave shielding function, and no market-oriented application, popularization, and industrialization technology have been formed. Problems such as unsolved bottlenecks achieve the effect of simple manufacturing process, increased added value, and broadened application fields

Active Publication Date: 2015-06-10
GUANGXI FENGLIN WOOD IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] So far, although many electromagnetic wave shielding composite materials with the function of preventing electromagnetic wave shielding have been developed, they are mainly based on plastics and metal materials. Solved, did not form a market application and popularization

Method used

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  • Manufacturing method for fiberboard with electromagnetic shielding function
  • Manufacturing method for fiberboard with electromagnetic shielding function
  • Manufacturing method for fiberboard with electromagnetic shielding function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Preparation of powdery composite conductive filler

[0021] The manufacturing method of the composite conductive filler is as follows: 40 parts of metal aluminum powder, 20 parts of carbon black, 10 parts of graphite, 5.0 parts of talcum powder, each component is uniformly mixed according to the weight ratio, and crushed to a mesh number of 400-500 mesh, a particle size of 2.0- 3.0 microns, spare.

[0022] (2) Panel production process

[0023] After the powdery composite conductive filler is prepared, follow the production process of the above-mentioned fiberboard figure 1 The process steps produce electromagnetic shielding fiberboard with a thickness of 2.5-25mm.

[0024] 1). Classify and store wood raw materials. The storage site should be dry, with good drainage conditions and fire-fighting facilities. The principle of first-come, first-served should be adopted. The storage time should not be too long, and the moisture content should be controlled at 40% to 60...

Embodiment 2

[0038] (1) Preparation of powdery composite conductive filler

[0039] The manufacturing method of the powdery composite conductive filler is as follows: 60 parts of metal aluminum powder, 30 parts of carbon black, 20 parts of graphite, 10 parts of talcum powder, each component is uniformly mixed according to the weight ratio, and crushed to a mesh number of 200-300 mesh, The particle size is 2.0-3.0 microns, ready for use.

[0040] (2) Panel production process

[0041] After the powdery composite conductive filler is prepared, follow the production process of the above-mentioned fiberboard figure 1 The process steps produce electromagnetic shielding fiberboard with a thickness of 2.5-25mm.

[0042] 1). Classify and store wood raw materials. The storage site should be dry, with good drainage conditions and fire-fighting facilities. The principle of first-come, first-served should be adopted. The storage time should not be too long, and the moisture content should be control...

Embodiment 3

[0056] (1) Preparation of composite conductive filler

[0057] The manufacturing method of the composite conductive filler is as follows: 50.0 parts of metal aluminum powder, 25.0 parts of carbon black, 15.0 parts of graphite, 7.5 parts of talcum powder, each component is uniformly mixed according to the weight ratio, and crushed until the mesh number is 300-400 mesh, and the particle size is 3.0-4.0 microns, spare.

[0058] (2) Panel production process

[0059] After the powdery composite conductive filler is prepared, follow the production process of the above-mentioned fiberboard figure 1 The process steps produce electromagnetic shielding fiberboard with a thickness of 2.5-25mm.

[0060] 1). Classify and store wood raw materials. The storage site should be dry, with good drainage conditions and fire-fighting facilities. The principle of first-come, first-served should be adopted. The storage time should not be too long, and the moisture content should be controlled at 4...

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Abstract

The invention provides a manufacturing method for a fiberboard with an electromagnetic shielding function. The manufacturing method comprises the following technical steps: timber chipping, screening, steaming, fiber separating, adhesive preparing and applying, dry separating, mat forming, pre-pressing, hot pressing, reversing cooling, sanding, detecting, storing and packaging. The manufacturing method for the fiberboard with the electromagnetic shielding function is characterized in that an environmental-friendly series of timber adhesives are applied in the adhesive preparing and applying step; a composite conducting filler is applied in the drying separating step, and is subjected to application measurement by a device at a position with 1.0-1.2 m distance between the front part of a drying pipeline discharging fan and a fan, so that the conducting filler is sucked and uniformly distributed into a fiber bin under the action of an attractive force negative pressure of the fan. By aims at the bottleneck problems in the prior art, an industrial manufacturing method for the fiberboard with the electromagnetic shielding function is provided, and the influence of electromagnetic radiation on the human lives and environments is reduced.

Description

technical field [0001] The invention relates to a manufacturing method of a fiberboard, in particular to a production process method of a fiberboard with an electromagnetic shielding function. Background technique [0002] With the construction of electrical equipment such as communication antennas, high-voltage transmission lines, and TV signal towers, and the increase in household appliances, the increasingly serious electromagnetic radiation has caused varying degrees of pollution to the environment. Severe electromagnetic pollution will cause genetic variation of plants, failure to grow or even death, and also cause adverse effects on domestic animals and wild animals. In human society, electromagnetic radiation can cause dysfunction of the central nervous system and vegetative nervous disorders mainly caused by sympathetic fatigue and tension. Electromagnetic radiation is increasingly harmful to people's health and brings great interference to the living environment. p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/04B27N1/00B27N1/02
CPCB27N3/04B27N1/00B27N1/0263B27N3/002B27N3/08
Inventor 韦淇峰詹满军黄精明陆奕岚全霞芳
Owner GUANGXI FENGLIN WOOD IND GRP CO LTD
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