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A method for forming a wood composite product, a wood composite product, and an apparatus for the manufacture of a wood composite product

A technology for manufacturing devices and composite materials, applied in wood processing appliances, applications, thin material processing, etc., can solve the problems of increasing water absorption, increasing the risk of mold, affecting size, etc., and achieving the effect of high friction coefficient

Inactive Publication Date: 2011-09-28
UPM-KYMMENE OYJ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result of the reduced plastic layer, water absorption is also increased, which in turn weakens the mechanical properties of the structure, increases the risk of mold and affects dimensions

Method used

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  • A method for forming a wood composite product, a wood composite product, and an apparatus for the manufacture of a wood composite product
  • A method for forming a wood composite product, a wood composite product, and an apparatus for the manufacture of a wood composite product
  • A method for forming a wood composite product, a wood composite product, and an apparatus for the manufacture of a wood composite product

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] In this example, a device is used into which crumbled adhesive label laminate and plastic and possible additives such as colorants and adhesion promoters are fed.

[0027] figure 1 A device for producing a wood composite structure and its connection to the material flow is shown. The device according to the present example comprises an extruder 1 , a forming unit 2 , ie a die, a calibration unit 3 , a cooling unit 4 , a cutting unit 5 and a material supply unit 6 . In the figure, the material supply unit 6 comprises material silos 7 for different components such as colorants and other additives. It is also possible to mix additional plastic with the material from the silo 7 . Furthermore, the figure shows a separate silo 7a for the adhesive label laminate into which the adhesive label laminate is guided via a shredder. From the silos 7 and 7a the material is led into a mixing unit 8 . It is thus possible to conduct the material further into the intermediate store 9 ...

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PUM

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Abstract

A method for forming a wood composite product (P) by extrusion with a manufacturing apparatus. The temperature profile prevailing in the manufacturing apparatus is adjusted in such a way that the surface of the wood composite product to be formed becomes rough. Furthermore, the invention relates to a wood composite product and an apparatus for manufacturing a wood composite product.

Description

technical field [0001] The present invention relates to wood composite products, such as wood composite decking. Background technique [0002] In the extrusion method, plastic raw materials are melted and mixed with possible additives and colorants, and extruded through a die with a given profile to form a product. When passing through a mold, the product acquires its final or almost final shape. From this mold, the product is usually directed to a calibration unit where it obtains its precise final dimensions. Thereafter, the product is guided further for cooling. The product is sawn to the desired length on the production line. Typically, the raw material is fed into the extruder in granular or powder form. [0003] Wood-plastic composites made by extrusion methods are manufactured by adding wood-based materials as fillers and various processing aids to matrix plastics. The wood-based material used is usually sawdust, but it can also consist of chips or chemical pulp ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/28B29C47/92B29C47/86B29C47/00B29C47/82B29C48/90B29C48/07B29C48/12B29C48/13B29C48/16B29C48/86B29C48/875B29C48/92
CPCB29C2947/92838B29K2711/14B29C47/0004B29C47/86B29C2947/92857B29C47/82B29C2947/92704B29C47/0019B29C47/80B29K2995/0072B29C47/0066B29C47/90B29K2105/06B29C47/92B29C48/875B29C48/83B29C48/92B29C2948/92704B29C48/022B29C48/07B29C48/12B29C48/13B29C48/0022B29C48/16B29C48/86B29C48/872B29C48/919B29C48/90B29C48/904B29C2948/92838B29C2948/92857Y10T428/24397B27N3/28B29C48/0019B29C48/03
Inventor M.科伊维斯托J.尼素拉S.基尔维索贾L.莱蒂南
Owner UPM-KYMMENE OYJ