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Method for manufacturing medium and high density fiberboards without pre-cured layers

A technology of high-density fiberboard and pre-cured layer, which is applied in the direction of flat products, household components, household appliances, etc., can solve the problems of large production scale and production capacity, and achieve the effects of improving utilization rate, improving market adaptability, and reducing raw material loss

Inactive Publication Date: 2010-06-16
唐善学
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the continuous press production line has a large production scale and production capacity, and the equipment investment is 10-20 times that of the multi-layer press production line.

Method used

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  • Method for manufacturing medium and high density fiberboards without pre-cured layers
  • Method for manufacturing medium and high density fiberboards without pre-cured layers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: multi-layer pressing machine pressing thickness 20mm, density 0.70g / cm 3 MDF. Lay fiber slabs with the required thickness and weight, pre-press and saw them longitudinally and crosswise to obtain each fiber slab, transport the fiber slabs to the transport line of the delayed heat transfer plate, and place the other delay heat transfer plate Placed on the fiber base plate, transported to the board feeding device together, and loaded into each layer of the hot plate of the multi-layer hot press, according to the hot pressing process, closed pressing. Push the pressed slab and delayed heat transfer plate out of the press to obtain a slab with no or less pre-cured layer, unload the plate with the plate unloader, separate the slab and delayed heat transfer plate, cool, trim the slab, sand Light, that is, get the desired product.

Embodiment 2

[0021] Embodiment 2: multi-layer press pressing thickness 8mm, density 0.9g / cm 3 of high-density fiberboard. Others are the same as in Example 1, the amount of fiber slab paving and the adjustment of hot pressing parameters.

Embodiment 3

[0022] Embodiment 3: multi-layer pressing machine pressing thickness 2mm, density 1.0g / cm 3 The high-density fiberboard, others are adjusted with embodiment 2, fiber paving amount and hot-pressing parameter.

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Abstract

The invention relates to a method for manufacturing medium and high density fiberboards by a multi-layer press. The existing method for manufacturing the medium and high density fiberboards by using the multi-layer press has the problem of thicker pre-cured layers. The invention provides the method for manufacturing the medium and high density fiberboards with no or few pre-cured layers by using the multi-layer press, which can save loss of raw materials and not only be used for manufacturing the thick fiberboards, but also be used for manufacturing the thin medium and high density fiberboards. The technology can be applied in a production line of manufacturing the medium and high density fiberboards of the multi-layer press.

Description

technical field [0001] The invention relates to the technical field of medium-density fiberboards, in particular to a method for dry-manufacturing medium- and high-density fiberboards in a multi-layer press production line. Background technique [0002] At present, the manufacturing methods of medium and high-density fiberboards on the market are mostly produced by dry method. There are mainly two types of pressing: multi-layer press and continuous press, and a small amount of single-layer press. The medium and high-density fiberboard pressed by the continuous press has no pre-cured layer or the pre-cured layer is thin, saving fiber materials. The multi-layer press presses medium and high-density fiberboards, and there are 2-4mm pre-cured layers on both sides. The pre-cured layer is also called the loose layer. The pre-cured layer has low density, poor bonding force between fibers, low strength, and poor surface finish. It must be removed by sanding, otherwise it will affec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/04B27N3/08B27N3/20
Inventor 唐善学
Owner 唐善学
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