A kind of preparation method of the composite sheet material that wood-plastic and metal profile co-extrude

Abstract

The application provides a composite plate molded by co-extrusion of wood plastics and a metal profile. The composite plate comprises a wood-plastic frame and the metal profile, wherein a first cavity is arranged in the wood-plastic frame; the metal profile is positioned in the first cavity; the wall surface of the first cavity is bonded with the surface of the metal profile; wherein, the wood plastic framework is a foamed wood plastic material layer, and the metal profile is the opening-type metal profile. The composite plate provided by the embodiment has the advantages that the opened metal profile is selected for substituting for the closed metal profile, so that the basic strength of the composite plate is guaranteed, the usage amount of steel is saved, and conditions are created for an extrusion mold to realize internal cooling of compressed air at the same time.

Description

technical field

[0001] The invention relates to a thermal insulation board, in particular to a method for preparing a composite board co-extruded with wood-plastic and metal profiles. Background technique

[0002] Solid clay bricks are often used for traditional building walls, which is not conducive to the protection of cultivated land; at present, wall materials such as aerated concrete blocks and hollow bricks need to be constructed on site, requiring cement wet work, generating a lot of construction waste on site and consuming a lot of labor. , The dimensional accuracy of the wall is also difficult to control, and the construction period is long, ranging from more than half a year to more than one year or even more than two years to complete.

[0003] In order to meet the needs of industrialization, ecology, energy saving and green environmental protection of new buildings, Chinese patent CN102650367A provides metal and resin composite co-extrusion profiles with holes or...

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