Fully-covered profile with aluminum lining separated by foamed plastic

Abstract

The invention relates to a fully-covered profile with an aluminum lining separated by foamed plastic. The profile comprises an aluminum lining profile, wherein the periphery of the aluminum lining profile is coated with a foamed plastic profile with a hard skin layer; the foamed plastic profile is formed by a coextrusion die once; the aluminum lining profile comprises a first aluminum lining profile and a second aluminum lining profile; at least one interval more than 4mm is reserved between the first aluminum lining profile and the second aluminum lining profile; the first aluminum lining profile and the second aluminum lining profile are connected with each other by a connecting body; the connecting body is made of the foamed plastic; and a material of the foamed plastic profile is the same as that of the connecting body. The profile is compatible with high strength of aluminum and high heat retaining property of the foamed plastic, is few in production flow and convenient to manufacture, only consists of aluminum and the foamed plastic, and facilitates subsequent recovery processing.

Description

technical field [0001] The invention relates to a section bar which separates the aluminum lining with foamed plastic and fully covers it, and is a section bar specially used for making energy-saving doors and windows. Background technique [0002] At present, there are many types of profiles for building energy-saving doors and windows, including aluminum-plastic co-extrusion profiles and broken bridge aluminum alloy profiles, figure 1 It is a structural schematic diagram of Embodiment 1 of an existing aluminum-plastic co-extrusion profile. Such as figure 1 As shown, the aluminum-plastic co-extrusion profile includes an aluminum liner 26 and a plastic layer 27, and the overall aluminum liner 26 is wrapped inside the plastic layer 27 by co-extrusion, and the thermal conductivity of the profile is about 2.9. figure 2 It is a structural schematic diagram of the second embodiment of the existing broken bridge aluminum alloy profile, such as figure 2 As shown, the bridge-br...

AI Technical Summary

Problems solved by technology

and figure 1 In the existing aluminum-plastic co-extruded profiles shown, since the integral aluminum-lined profiles that are easy to conduct heat run through the profiles, the doors and windows produced have the disadvantage of poor heat insulation effect. figure 2 The existing bridge-broken aluminum alloy profile shown is compounded into a bridge-broken aluminum profile by using a plastic strip to separate the two parts of the aluminum lining through a special composite machine, and there is also the disadvantage of high thermal conductivity of the doors and windows made and poor thermal insulation effect.

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