Sectional material manufacturing technique for regenerative plastic doors and windows

Abstract

The invention relates to a sectional material manufacturing technique for regenerative plastic doors and windows, which has the innovative points that the sectional material manufacturing technique adopts the technical steps as follows: regenerative plastics that adopt polyolefin thermoplastic plastics as main components are taken as main material; a sectional material is prepared through the procedures such as cleaning crushing, granulation, injection mold extrusion formation, stress elimination, planing milling processing, surface coating, and co-extrusion sealing; and the sectional material can be used for manufacturing high-quality doors and windows. The sectional material mainly takes the regenerative plastics made of recovered plastic garbage as the main material, so that the utilization ratio of resources is improved, and environmental protection can be achieved; the sectional material adopts a solid structure that is processed through extrusion moulding, and no shedding, no fracture and no deformation are caused in a cool drop hammer impact test; in addition, aluminum foil layers are arranged on the surface of the sectional material, so that ultraviolet ray resistance, ageing resistance, no fading, no shedding and strong weatherability can be achieved. A non-decorative surface of the sectional material is coated with a high density polyethylene layer, and decorative surfaces of the sectional material are coated with the aluminum foil layers through bonding agents, so that the high density polyethylene layer is formed between the aluminum foil layers of a front decorative surface and a rear decorative surface and is used as a heat blocking layer, and the thermal conductivity coefficient is low.

Description

technical field [0001] The invention relates to a manufacturing process of door and window profiles, in particular to a manufacturing process of recycled plastic door and window profiles. Background technique [0002] Doors and windows are important components of the building envelope system, and they should have functions such as heat preservation, heat insulation, sound insulation, waterproof, and fire prevention according to different design requirements. It is also an important part of architectural modeling, and its shape, size, proportion, arrangement, color, shape, etc. have a great influence on the overall shape of the building. [0003] The current door and window profiles have gone through four generations of solid wood, steel windows, PVC, and broken bridge aluminum alloys. Solid wood doors and windows are not resistant to fire, rain, snow, and termites; Corrosion; PVC material has poor aging resistance and poor strength, so it is not suitable for high-rise buil...

AI Technical Summary

Problems solved by technology

[0003] The current door and window profiles have gone through four generations of solid wood, steel windows, PVC, and broken bridge aluminum alloys. Solid wood doors and windows are not resistant to fire, rain, snow, and termites; Corrosion; PVC material has poor aging resistance and poor strength, so it is not suitable for high-rise buildings; broken bridge aluminum alloy has improved thermal insulation performance compared with ordinary aluminum alloy profiles, but still has the disadvantages of high energy consumption and corrosion resistance