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A kind of preparation method of electrothermal composite board

A composite board, electric heating technology, applied in the direction of flat products, household appliances, wood processing appliances, etc., can solve the problems of low production efficiency, waste of raw materials, high labor intensity, etc., to reduce energy consumption, reduce production costs, improve The effect of production efficiency

Active Publication Date: 2021-01-26
福建省永安林业(集团)股份有限公司永林蓝豹分公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Or brush a layer of micro-nano carbon paste on the surface of the board, dry and solidify, and glue the upper surface. The whole preparation process of the board will waste a lot of raw materials, and it will cost a lot of labor and auxiliary materials, as well as a large amount of production auxiliary equipment. Not high, labor-intensive, serious pollution

Method used

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  • A kind of preparation method of electrothermal composite board
  • A kind of preparation method of electrothermal composite board
  • A kind of preparation method of electrothermal composite board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 As shown, a pavement device for electrothermal composite panels includes a casing 1 and a slab transport device 2 located below the casing 1, and the casing 1 is sequentially provided with a fiber feeding and conveying device 3, A conductive heating layer paving device, the conductive heating layer paving device includes a football-shaped outer casing with a longitudinal section, the upper end of the outer casing is pointed and closed, and the lower end is open, and electric heating wires are arranged in parallel at intervals inside the outer casing. Installing device 4, heat conduction layer paving device 5.

[0029] Such as figure 2 , Figure 4 As shown, the heating wire laying device 4 is sequentially provided with a heating wire conveying mechanism 41 , a heating wire automatic cutting mechanism 42 and a heating wire outlet pipe 43 from top to bottom. The heating wire delivery mechanism 41 includes an inverted L-shaped fixed tube 411 and a turni...

Embodiment 2

[0048] Different from Embodiment 1, the hopper 53 of the heat-conducting layer paving device 1 is not divided into a large hopper 531 and a small hopper 532 by a partition, and there is no material guide unit 54 .

[0049] The carbon crystal powder has a particle size of 350 meshes, and the surface of the particles is first covered with a layer of far-infrared emitting agent, and then covered with a layer of glue that is the same as that of the fiber, with a water content of 3.5%.

[0050] After testing, the density of the 55mm low-density composite electric heating fiberboard prepared in this example is 550 kg / m3, and its performance index can reach the furniture type used in the dry state in the national standard for medium density fiberboard (GB / T 51718-2009). The performance requirement index of medium density fiberboard, the detection value of its performance index is as follows:

[0051]

Embodiment 3

[0053] The difference from Example 2 is that the heating wire laying device 4 and the heat conducting layer laying device 5 are arranged side by side in the outer shell at intervals. The number of the heating wire laying devices is four, and along the thickness of the outer shell direction.

[0054] After testing, the density of the 18mm low-density composite electric heating fiberboard prepared in this example is 570 kg / m3, and its performance index can reach the furniture type used in the dry state in the national standard for medium density fiberboard (GB / T 51718-2009). The performance requirement index of medium density fiberboard, the detection value of its performance index is as follows:

[0055]

[0056]

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Abstract

The invention relates to an electric heating composite board preparation method which includes the steps of fiber preparation, fiber gluing, slab laying, prepressing and hot-press forming. Slabs are laid in a fiber laying machine, a conductive heating layer laying device is arranged between a fiber outlet and a slab conveying device of a feeding and conveying device of the fiber laying machine, and electric heating wires and a heat conducting layer are laid in the fiber laying machine. During laying, wood fibers are placed into a fiber feeding port and then uniformly fall to the slab conveyingdevice through the feeding and conveying device, part of dry fibers slip through the left side of the conductive heating layer laying device, another part of the dry fibers slip through the right side of the conductive heating layer laying device, the electric heating wires and the heat conducting layer are laid while the fibers are laid, and finally, a fiber composite layer is laid. A traditional heating board preparation method is improved, original working procedures such as patching are omitted, production efficiency is improved, energy consumption can be decreased, and production cost isreduced.

Description

technical field [0001] The invention relates to a preparation method of an electrothermal composite board. Background technique [0002] Fiberboard is a kind of man-made board made of wood fiber or other plant fiber as the main raw material, prepared by fiber, applied with adhesive, paved and shaped after the fiber is dried, and then hot-pressed. Classified by bulk density, fiberboard can be divided into high-density fiberboard, medium-density fiberboard, and low-density fiberboard. Due to the uniform material of fiberboard, it is widely used in the processing of furniture, floors, beds, wall panels, packaging boxes, ceilings, etc. [0003] The preparation method of the existing heating plate: Method 1 is to dig holes or grooves on the basis of the finished substrate, place the heating layer in the holes or grooves, and seal the bottom surface. The second method is to lay a formed pressed heat conduction veneer on the surface of the finished plate, and lay an upper surface...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N3/04B27N3/12B27N3/14B27N3/16B27N3/18
CPCB27N3/04B27N3/12B27N3/14B27N3/16B27N3/18
Inventor 陈建新刘翔晖陈德金王永闽郭祥桃伊启中马林吴祖顺管义榕叶新强魏叶满
Owner 福建省永安林业(集团)股份有限公司永林蓝豹分公司
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