Aluminum alloy door and window hardware accessories have an important influence on the function of doors and windows

Aluminum alloy door and window hardware accessories are an important part of it, and its performance and quality have an important influence on the function of doors and windows. Due to the continuous development of modern technology, door and window hardware accessories (handles, handrails, sliding hinges, sliding rails, connectors, etc.) are also increasingly flooding the market.

　　Modern building doors and windows can be roughly divided into plastic windows, composite windows, and aluminum alloy windows according to the types of profiles. Among them, aluminum alloy windows are the main building door and window products in my country today, and they account for a large proportion of today's buildings. In fact, aluminum alloy windows have their advantages in terms of resistance to wind pressure, water tightness, air tightness, and environmental protection.

　　 Because aluminum alloy is very easy to passivate under natural conditions, when general metal materials are used for hardware, the structure of aluminum alloy doors and windows will be a combination of large cathodes and small anodes.

　　Using new technologies, new processes, and new materials is the only way to improve the corrosion resistance of door and window hardware accessories. Foreign hardware manufacturers use physical vapor deposition (PVD for short, also known as vacuum plating) to produce hardware accessories with excellent appearance and corrosion resistance. Vacuum plating has the advantages of strong adhesion, not easy to peel off the coating; good diffraction, uniform coating thickness; dense coating, less pinhole bubbles; easy to handle before plating, simple process; low material consumption, no pollution and other advantages.

　　 can be plated element, alloy or compound on metal or non-metal surface. It has been widely used in industries such as aviation, aerospace, electronics and optics to prepare various coatings with special properties. With the continuous improvement, large-scale and continuity of vacuum plating equipment, as well as the development of coating technology, a decorative coating with good bonding force, strong wear resistance and high brightness can be obtained. In foreign countries, vacuum plating of Au, Ag, Al, Zr, TiN, lCrl8Ni9, etc. is used on the surface of some accessories such as handles and hinges, etc., to obtain an outer surface with excellent comprehensive performance, so that single functional accessories such as handles and hinges have become Use accessories that are both functional and decorative.