The titanium gold plating process for profiles belongs to the coating technology. It involves adding pre-plating and electroplating steps to the conventional titanium plating process. The process for aluminum profiles involves placing the activated plating parts in an aqueous solution of salt and hydrochloric acid for chemical treatment.
The plating solution for the electroplating process comprises nickel sulfate, nickel chloride, boric acid, sodium lauryl sulfate, saccharin, and a brightener. This process is simple, practical, and effective. The titanium-aluminum profiles produced by this process exhibit a film hardness of HV ≈ 1500, and are 150 times more wear-resistant than 22K gold plating under the same conditions. They can be processed into various series of aluminum profile products in various forms, such as gold, colored, and black, with a bright finish.
The density of aluminum profiles is only 2.7g/cm3, which is about 1/3 of the density of steel, copper, or brass (7.83g/cm3, 8.93g/cm3, respectively). Under most environmental conditions, including in air, water (or saltwater), petrochemical, and many chemical systems, aluminum exhibits excellent corrosion resistance. Aluminum profiles are highly machinable.
In various wrought and cast aluminum alloys, as well as in the various states they exhibit after production, there is considerable variation in machining characteristics, necessitating special machine tools or techniques.
Aluminum profiles can be divided into alloy grades such as 1024, 2011, 6063, 6061, 6082, and 7075, among which the 6-series is relatively common. The difference between different grades lies in the proportion of various metal components. In addition to commonly used aluminum profiles for doors and windows such as the 60-series, 70-series, 80-series, 90-series, and curtain wall series, there is no clear model distinction for industrial aluminum profiles. Most manufacturers process them according to customers' actual drawings.
Extrusion is a method for profile forming. First, a mold is designed and manufactured based on the cross-section of the profile product. Then, the heated round cast rod is extruded from the mold using an extruder to form the desired shape. The commonly used grade is 6063 alloy, which undergoes an air-cooling quenching process during extrusion followed by an artificial aging process to complete heat treatment strengthening. Different grades of heat-treatable strengthening alloys have different heat treatment regimes.
Aluminum alloy profiles are a widely used type of non-ferrous metal structural material in industry. Do you know how aluminum alloy profiles are classified based on their surface treatment methods?
1. Anodized architectural aluminum alloy profiles
Silver white, snow white, bronze, titanium, black gold, mirror polishing and sand polishing (Baolishun) series
2. Electrophoretic coating of architectural aluminum alloy profiles
Silver white electrophoresis, bronze electrophoresis, titanium gold, frosted electrophoresis
3. Powder-coated architectural aluminum alloy profiles
Super weather-resistant powder coating refers to a process where a powder coating is sprayed onto the surface of an aluminum alloy substrate through electrostatic adsorption. This coating exhibits excellent weather resistance and UV resistance, and offers a diverse range of colors.
4. Fluorocarbon-sprayed architectural aluminum alloy profiles
Fluorocarbon spraying refers to the process of applying a polyvinylidene fluoride (PVDF) coating on the surface of aluminum alloy substrates through electrostatic action. Fluorocarbon coatings exhibit long-lasting color retention, corrosion resistance, anti-aging properties, and resistance to atmospheric pollution. Their fluorocarbon bond is one of the strongest molecular bonds known, and they offer a diverse range of colors.