The history of the development of modern Chinese doors and windows originated in the twentieth century. The early period was represented by steel doors and windows. It has a history of ninety years. Aluminum alloy doors and windows developed late, and were introduced to China in the 1970s. In the early days, they were only used in foreign embassies in China and a few foreign-related projects. With the rapid economic development in recent decades, aluminum door and window series have also developed from several varieties and series in the early 1980s to dozens of varieties and hundreds of series, forming a relatively developed aluminum door and window product system and establishing Pillar product status.
As the most promising Al-Mg series alloy, 5052 aluminum coil has good corrosion resistance, excellent weldability, good cold workability, and a wide range of applications. Especially for the construction industry, this alloy is inseparable, of which 5052 H24 aluminum coil is very suitable. Production of doors and windows.
5052 aluminum coil has the following characteristics:
1. The surface is smooth, without cracks, corrosion spots and nitrate traces.
2. High fatigue resistance, good plasticity and corrosion resistance.
3. Good weldability, poor cutting performance and polishability.
4. The elongation of 5052H24 aluminum coil can reach 12-20%, which is 200% higher than that of 1060 aluminum plate.