Composite profile and manufacturing method for macromolecular profile in composite profile

Abstract

The invention discloses a composite profile. A macromolecular profile and an aluminum profile are formed in a composite mode through a roller press. The composite profile is characterized in that the macromolecular profile is composed of, by mass, 25 percent of glass fibers, zero percent to eight percent of metallic mineral enhancement materials and 67 percent to 75 percent of modified polyurethane. The invention further discloses a manufacturing method for the macromolecular profile in the composite profile. The manufacturing method comprises the first step of yarn feeding, the second step of gumming, the third step of pre-forming, the fourth step of forming and the fifth step of cutting. The composite profile is small in mass and low in heat conduction, achieves heat insulation and heat preservation, and is resistant to aging and creep deformation, small in the number of adopted profiles, long in service life and capable of improving the heat preservation and heat insulation performance and the overall stability performance of doors and windows.

Description

Technical field [0001] The invention relates to a composite window profile, in particular to a composite profile and a preparation method of the polymer profile in the composite profile. Background technique [0002] At present, the common types of windows in the door and window market are: aluminum alloy windows, plastic steel windows and composite windows. At first, the Chinese market was dominated by aluminum alloy doors and windows, but there were too many shortcomings, such as poor heat insulation; gaps in the overlap between the frame and the fan, resulting in poor air and water tightness, and poor assembly processes for doors and windows. Later, UPVC plastic-steel doors and windows entered the Chinese market and quickly occupied a large number of markets with their excellent thermal insulation properties. However, its shortcomings were also very obvious. For example, the welding corners of plastic-steel doors and windows were very easy to crack, the deformation of the prof...

AI Technical Summary

Problems solved by technology

[0003] With the development of the door and window market, although the two materials are constantly improving, their respective advantages and disadvantages still exist. Therefore, doors and windows with simple composites of two materials, namely aluminum-plastic composite windows, appear in the market to coordinate the heat insulation of aluminum windows and The strength of the plastic-steel window is problematic, but the thermal expansion coefficients of the two materials differ greatly. After a long-term temperature difference change, the lap joints of the two materials will become loose, which will cause serious safety hazards

In addition, there is also a glass fiber reinforced plastic door and window, which is known internationally as the fifth-generation door and window product after wood, steel, aluminum, and plastic. Although it has many excellent physical and chemical properties, it is expensive, hard and brittle, and the processing technology Imperfect, low production efficiency, high scrap rate, etc., have been hindering its development, resulting in almost no market share so far

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