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Manufacturing method of light-weight magnetic wood composite sectional material

A composite profile and manufacturing method technology, applied in the direction of manufacturing tools, wood processing appliances, wood veneer bonding, etc., can solve the problems of uneven strength, high density and high manufacturing cost, achieve uniform penetration, uniform distribution, guarantee Uniform and consistent effect

Active Publication Date: 2021-10-29
NANJING FORESTRY UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are problems of relatively high density (mass weight) and relatively high cost
[0003] In particular, if the prior art hollow plate is used as the base layer material (for supporting the magnetic adsorption material layer), there will be problems of relatively high manufacturing cost or uneven strength.

Method used

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  • Manufacturing method of light-weight magnetic wood composite sectional material
  • Manufacturing method of light-weight magnetic wood composite sectional material

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Experimental program
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Effect test

Embodiment 1

[0035] Embodiment 1: A method for manufacturing a lightweight magnetic wood composite profile, including the preparation process of the structural layer 400, the preparation process of the structural layer 400 includes the following production steps in sequence according to the production sequence:

[0036] S1. The step of preparing materials,

[0037] S2. The step of mixing glue,

[0038] S3. The step of blending light weight materials,

[0039] S4. The step of laying materials,

[0040] S5. The step of hot pressing.

[0041] In the step of S1. material preparation, wood shavings are used as the primary raw material, and the primary raw material is dried to a moisture content of 6%-12%, for example, 8% (±0.5%). In some other embodiments, wood fiber can also be used as the primary raw material.

[0042] In the step of S2. glue mixing, the adhesive used is solid soybean protein adhesive, and the ratio of wood shavings and solid soybean protein adhesive adopts a conventional...

Embodiment 2

[0057] Embodiment 2: The difference between embodiment 2 and embodiment 1 is that

[0058] The lightweight material is ice balls formed by mixing and freezing water and epoxy resin, wherein the weight ratio of water and epoxy resin is (1-5.5):1. In this embodiment, the water and epoxy resin are put in The mass ratio is (2.3~2.6):1. The particle size of the molded ice ball is 0.5mm-1.1mm. The volume of formed pucks accounted for 35% (±3%) of the total volume of the structural layer.

[0059] The thickness of the underlying secondary raw material accounts for 14% (±0.5%) of the total thickness of the structural layer 400 .

[0060] In the step of S5. hot pressing, the process parameters of each sub-stage are:

[0061] S5-1. In the first hot-pressing stage, the hot-pressed structure is brought into contact with the tertiary raw materials after paving. The temperature of the hot-pressed structure is 105°C (±1°C), the pressure is 0.32MPa (±0.2MPa), and the processing time for 8...

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Abstract

The embodiment of the invention discloses a manufacturing method of a light-weight magnetic wood composite sectional material. The manufacturing method comprises a preparation process of a structural layer, and the preparation process of the structural layer sequentially comprises the following production steps according to the production sequence: S1, preparing materials, S2, stirring glue, S3, blending light-weight materials, wherein light-weight materials being ice balls frozen from water, S4, material spreading and S5, hot pressing. By means of the method, the structural layer used as a base layer material can be efficiently manufactured, and the mechanical strength of all positions (all positions of thickness, all positions of width and all positions of length) of the structural layer is relatively uniform and consistent.

Description

technical field [0001] The invention relates to the technical field of wood composite material preparation, in particular to a method for manufacturing light-weight magnetic wood composite profiles. Background technique [0002] Magnetic board is one of the commonly used materials for civil furniture, commercial furniture, and public transportation furniture. It is used to provide adsorption force for office magnetic blocks or magnetic stickers. In the prior art, a magnetic wood composite board is produced by pasting an iron board on the bottom surface or core layer of the wood composite material. However, there are problems of relatively high density (mass weight) and relatively high cost. [0003] In particular, if the prior art hollow plate is used as the base layer material (for supporting the magnetic adsorption material layer), there are problems of relatively high manufacturing cost or uneven strength. Specifically, if a honeycomb panel is used as a light-weight bas...

Claims

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Application Information

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IPC IPC(8): B27D1/08B27D1/06B27N3/12B27N3/10
CPCB27D1/08B27D1/06B27N3/12B27N3/10
Inventor 贾翀杜富运俞马宏
Owner NANJING FORESTRY UNIV
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