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Procedure and apparatus for fabrication of blank for structural product, and blank for structural product

A technology of structural parts and blanks, applied in applications, household components, flat products, etc., can solve the problems of being unable to be dispersed and damaging the quality of the board, and achieve good dispersion and orientation, and improve the quality of the effect

Inactive Publication Date: 2004-09-29
SUNDS DEFIBRATOR LOVIISA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Prior art particle dispersing / orienting devices are not capable of classifying and / or orienting the dispersed material to adequately use very small particles in the board manufacturing process
If very short chips are added to this method, the quality of the board will be compromised, as they cannot be dispersed in the designed positions or accurately oriented

Method used

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  • Procedure and apparatus for fabrication of blank for structural product, and blank for structural product
  • Procedure and apparatus for fabrication of blank for structural product, and blank for structural product
  • Procedure and apparatus for fabrication of blank for structural product, and blank for structural product

Examples

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Embodiment Construction

[0013] A method of manufacturing blanks for structural elements, such as blanks for structural panels, the raw material 1 of which blanks for structural elements comprises longer particles L and shorter particles S, such as long and short chips and / or fibers , may also comprise particles F smaller than them, in which process the particles are mixed with a binder and possibly additives and then conveyed to at least one blank-setting machine, whereby the particles are placed on a substrate 10, e.g. The belt conveyor is either the mold or the blank from the previous unit. At first, at least one surface layer 11 formed by long particles L is placed on the substrate 10, and smaller particles F are placed on these long particles to form one or more intermediate layers 13, 14. Longer particles L are again placed on the middle layer to form a second surface layer 12 . The shortest particles F are then placed on the substrate in such a way that they are distributed predominantly in th...

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Abstract

Procedure for the fabrication of a blank for a structural product, such as a blank for a structural board, from material comprising longer and shorter particles and possibly also particles smaller than these. The particles are mixed with a binding agent and possible additives and then passed into at least one blank former, from where the particles are brought onto a base. Longer particles are brought onto the base to form a first surface layer, onto which is brought at least one layer of smaller particles, and onto this layer is again brought a layer of longer particles to form a second surface layer, the smallest particles being so brought onto the base that they mainly end up in at least one middle layer in the cross-section of the blank while the amount of smallest particles diminishes towards the surface layers as seen in the cross-section of the blank. The invention also relates to an apparatus implementing the procedure and to a blank for a structural product.

Description

technical field [0001] The present invention relates to a method for manufacturing blanks for structural parts, such as blanks for structural panels. The raw materials of said blanks for structural parts include longer grains and shorter grains, and may also include grains smaller than them. The granules are, for example, chips and / or fibres, in which process the granules are mixed with a binder and possibly additives and fed to at least one blank-setting machine which conveys the granules to a substrate such as The belt conveyor is either on the template or the blank. The invention also relates to a device for dispersing a raw material comprising: longer particles and shorter particles and possibly smaller particles than the above, such as shavings distributed together, preferably with a binder, on a dispersing substrate and / or fibers, said device comprising: a preliminary dispersing roller set comprising at least two substantially parallel, preferably rotating, rollers with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N3/02B27N3/14
CPCB27N3/14
Inventor A·拉蒂凯仁J·莱蒂仁
Owner SUNDS DEFIBRATOR LOVIISA
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