Door and Window System Manufacturer: Five Ways to Identify Authentic and False Bridges and Windows and Windows-WJW Aluminum Supplier Aluminum

First of all, "stealing beams and changing columns": Use non -structural materials to use low -cost PVC insulation strips instead of widely recognized glass fiber enhanced polyamine nylon insulation bands in Europe. Linear expansion coefficient (8). 3*10-5k-1 and linear expansion coefficient of polyvinyl chloride (2). (5) Aluminum alloy. After the composite PVC thermal insulation belt passes through the steel belt, there are many defects such as low strength and poor anti -aging performance, which leads to the insulation doors and windows made from broken bridge aluminum profiles. After the actual installation and use, thermal expansion and cold contraction will cause the PVC insulating belt to loosen or even fall off on the broken bridge aluminum material, which will form loosening and deformation, thereby destroying the air tightness and water density of doors and windows. Loose and separation. The second is "Hidden World is not affected by the ocean": At present, in the example of the aluminum doors and window projects of the broken bridge, aluminum profiles of different wall thickness, especially aluminum profiles less than 1.4mm as an enterprise with an aluminum profile in thermal insulation broken bridge. A strong concealment, the owners of the broken bridge aluminum doors and window projects can only identify the profile before processing. Third, "Mixed Water Touch Fish": The usual doors and windows should be tested by strict national performance testing institutions, and test reports are used as the performance test report of doors and windows. However, the test data of this raw material can only reflect its material performance, and the performance of hot squeezing and cooling finished products will change greatly. Fourth, "speculation": After fully researching and grasping the huge performance differences between the PVC insulation belt, the domestic nylon insulation belt and the imported nylon 66 insulation belt, some broken bridge aluminum doors and windows companies have adopted the compromise of both economical and relatively safe and secure compromise. Scheme: Window frame aluminum profile adopts low -quality low -cost PVC or domestic nylon insulation belt, window frame aluminum profile adopts high -quality imported nylon 66 insulation belt. They believe that the window frame aluminum profile is fixed on the wall. Even if there are quality risks, there will be no major problems, and the window frame aluminum profile is an active and independent carrying capacity, so you cant dare to have hidden quality hazards. "Responsible for the quality of the product, and the professional attitude responsible for the quality of life is the principle of construction enterprises. Otherwise, even if the relevant standards are released in vain, the standard formulation is to test the quality of the product. Without quality awareness, everything will become fake. Fifth, there is also a difference between "forming digital static spray coating and electrical coating on the surface of the profile. The former is physical change, and the latter is chemical change. Electricity was established in the 1960s and was used by Ford Motor Corporation for car primer paint. Due to its excellent functions such as anti -fading and anti -corrosion, it has been widely used in the military industry. In recent years, it has only been used for the surface treatment of doors and windows. Because of its excellent quality and high environmental protection performance, it is gradually replacing the traditional spray paint. Electricity means that under the action of voltage, a charged coating ion moves to the cathode, and the alkaline interaction generated with the cathode surface forms insoluble substances, so that the coatings are deposited on the surface of the aluminum alloy surface.