3003 aluminum alloy strip for hollow glass strip

3003 aluminum alloy strip for hollow glass strip

Aluminum spacers are used to make the aluminum alloy frame in the hollow glass strip, which contains the function of spacing between the desiccant and the fixed glass strip. Relative to the tape and other frame materials, aluminum with easy oxidation, corrosion resistance, light weight, no distortion, the surface bright, and desiccant does not react, it has good anti-aging and decorative appearance and other characteristics. The current rate of spacers usually have two kinds of molding methods: the sense of direct extrusion through the round bar, but through aluminum rolling and high frequency welding; the latter is stronger than the former, surface decoration better, it has become its The main mode of production, especially in high-end building materials selection; but its production and molding process is relatively more complex, while the mechanical properties of aluminum alloy strip and surface brightness requirements are higher. 


 
Due to its high strength, good ductility, excellent weldability and corrosion resistance, the 3003 aluminum alloy strip is the alloy of choice for hollow glass strip aluminum spacers for roll and HF welding. At present, the main specifications of the strip with aluminum alloy strip and alloy state are 0.34mm or 0.35mm 3003 H26 and 0.27mm 3003 H38, the former requirements of the material tensile strength is best controlled at 190-210MPa, elongation 5% the above.
 
As the hollow glass strip is one of the high-grade building materials, the decorative appearance requirements are relatively high, and the aluminum bars are exposed between the glass strip sheets. Therefore, the surface of the aluminum tape can not have obvious defects that affect the external appearance, especially the transparent and colorless Or light-colored glass strip, the brightness of the aluminum surface has higher requirements.