▎ 摘　　要

NOVELTY - High-temperature aluminum alloy comprises aluminum alloy tube base and corrosion-resistant coating. The aluminum alloy tube matrix includes silicon (Si), iron (Fe), copper (Cu), magnesium (Mg), boron (B), bismuth (Bi), titanium (Ti), scandium (Sc), nickel (Ni), zirconium (Zr), niobium (Nb), molybdenum (Mo) and aluminum (Al). The corrosion-resistant coating includes color paste, methyltrimethoxysiloxane and formic acid. The color paste includes silica sol, modified graphene, aluminum oxide, dispersant and deionized water. The modified graphene is prepared by adding graphene oxide to tetrahydrofuran (THF), and after ultrasonic dispersion for 15-20 minutes, then adding dicarboxy-terminated polysilsesquioxane and aminopropyltriethoxysilane, heating to 50-60 degrees Celsius, stirring and reacting for 6 hours, stopping reaction, cooling and rotary evaporation, washing with ethanol, and drying to obtain modified graphene. USE - High-temperature aluminum alloy for floor heating pipe. ADVANTAGE - The high temperature aluminum alloy has good strength, hardness, toughness, corrosion resistance and high temperature resistance, and improves the heat dissipation of the organic silicon ceramic coating. The corrosion resistant coating improves the corrosion resistance of the aluminum alloy pipe base surface. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing high temperature aluminum alloy for floor heating pipe, which involves removing impurities from the raw material of the aluminum alloy tube substrate through an ultrasonic cleaning device, putting preheated Al, Si, Fe, Cu and Mg into the furnace together, and refining at 850-1050 degrees Celsius, when the raw materials are molten liquid, putting the impurity remover into the furnace, refining for 6 hours, then stirring to clear the slag, and keeping to cool to obtain cooled aluminum-based raw materials, heating the cooled aluminum-based raw material to 850-1050degrees Celsius, carrying out secondary refining, and stirring to remove slag, adding preheated (B) to the furnace, heating for 2-3 hours, adding the remaining raw materials, heating and stirring for 2-3 hours, and obtaining the molten liquid, molten liquid is cast in a mold, cooling to 300degrees Celsius to obtain an aluminum alloy tube blank, sending the cooled aluminum alloy tube blank into the extruder, heating up to carry out homogenization treatment, and then extruding, quenching, and aging heat treatment to obtain a formed aluminum alloy tube matrix, stirring and mixing the raw materials of the corrosion-resistant coating, stirring at 20-30degrees Celsius for 8 hours, filtering, spraying on the surface of the pretreated forming aluminum alloy pipe base, drying, and curing, to obtain a high-temperature aluminum alloy for floor heating pipes.