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
CN1168585CInactive Publication Date: 2004-09-29SUNDS DEFIBRATOR LOVIISA
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Patent Information

Authority / Receiving Office
CN Ā· China
Patent Type
Patents(China)
Current Assignee / Owner
SUNDS DEFIBRATOR LOVIISA
Publication Date
2004-09-29
Estimated Expiration
Not applicable Ā· inactive patent

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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.
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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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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