pvc plastic doors and windows PVC plastic

pvc plastic doors and windows PVC plastic doors and windows is made of polyvinyl chloride (PVC) resin as the main raw material, adding a certain proportion of stabilizers, modifiers, fillers, UV absorbers and other additives formulations and modification, after extrusion Forming a variety of fault structure of the hollow profile, fixed length cutting, in its cavity lining steel reinforced ribs, and then welded by hot melt welding machine into a door frame, fan, assembly on the seal, brush , Glass, hardware accessories, etc. constitute the doors and windows finished. In order to increase the rigidity of PVC plastic hollow profile, in its lining lining steel reinforced, the formation of steel structure, hot sale pvc profiles from professional manufacturerit is also known as steel doors and windows. PVC is the abbreviation of PVC in the "plastic doors and windows" before the "RPVC" or "UPVC", the actual belong to the same material, that is, "hard polyvinyl chloride" or "plasticized PVC. " PVC plastic doors and windows is a new type of building materials, it is less than the wooden windows and steel windows corrosion-resistant, without paint maintenance; aluminum windows and steel windows than the heat insulation, sound insulation, sealing performance, and the appearance of colorful, Can be coordinated with all kinds of buildings. The use of PVC plastic doors and windows can save energy and save resources. Therefore, PVC plastic doors and windows in foreign development is extremely rapid, and has been widely used, the former Federal Republic of Germany, Austria, Italy, France and other countries account for the amount of total use of doors and windows accounted for more than 60%. China is a country with a tight supply of energy, a shortage of timber resources,safety windows and door pvc profiles and a shortage of steel and aluminum. Therefore, in our country to develop and promote the use of PVC plastic doors and windows will have significant economic and social benefits, to promote the development of the national economy is of great significance. PVC plastic doors and windows of the production process can be divided into three parts, namely the preparation of mixed materials PVC plastic profile extrusion and doors and windows of the assembly, the production process shown in Figure 1-1.