Rare earth aluminium alloy aluminium ingot bundling and wrapping tape and fabrication method thereof

Abstract

The invention relates to a rare-earth aluminum alloy aluminum ingot binding packaging tape and its making method, made by melting Al, Zn, Mg, Rare-earth, Ti, Zr, Cr, Mn, etc, it has cross section area 25-35 mm wide X1.0-1.5mm thick, tensile strength up to 350-400MPa, elongation up to 10-15%, adn good shock resistance, overcomes the defects in existing steel bands, does not corrode and change mechanical property for long time storage, has high strength, and can directly lift the whole bundle of aluminum ingots in a top-loading aluminum smelting furnace, improving working efficiency. It is smooth, no-burr, and unable to damage hands at the time of operation, etc.

Description

Technical field: [0001] The invention belongs to the field of alloy smelting heat treatment, and in particular relates to a rare earth aluminum alloy aluminum ingot bundling packing belt and a manufacturing method thereof. Background technique: [0002] At present, most of the aluminum ingots in the world are bundled and packaged with galvanized steel strips (group III) in the GB4173-84 standard, and their tensile strength is ≥ 490N / mm 2 , elongation ≮5%, cross-sectional size 25-40mm×0.7-1.1mm, the production process is to cut the purchased large-width steel coil into the required width, and then after galvanizing, shaping and straightening, winding into finished product. However, there are the following deficiencies: (1) Although steel belts are used for bundling with high strength and large elastic modulus, due to their low elongation, low material viscosity, and poor toughness, it is difficult to withstand impact loads (such as aluminum ingots) The bundles fall from a h...

AI Technical Summary

Problems solved by technology

However, there are the following deficiencies: (1) Although steel belts are used for bundling with high strength and large elastic modulus, due to their low elongation, low material viscosity, and poor toughness, it is difficult to withstand impact loads (such as aluminum ingots) The bundles fall from a high place, sharp objects hit the steel belt, etc.), the steel belt is easy to break, resulting in loose bundles, which brings great stability to the transportation; (2) The aluminum ingot bundles arrive at the user after many times of reverse transportation and long-distance transportation. The steel belt has been permanently deformed, and the secondary utilization rate after unbundling is low, so it can only be treated as scrap steel; (3) When using a large top-loading aluminum melting furnace, the user hopes to hoist the whole bundle of aluminum ingots into the There is no need to unpack the strips in the furnace, but the steel strips will pollute the molten aluminum and cannot be loaded into the furnace as a whole, so the packaging must be unpacked and aluminum ingots added piece by piece, thus affecting the melting efficiency; (4) Long-term storage or long-distance When transporting aluminum ingots, the steel strips are easy to corrode and break, resulting in loose bundles, which brings inconvenience to transportation; (5) The steel strips are cut from a whole piece of strip material, and there are many burrs on the edges, which are easy to be scratched during the bundling operation. Injure fingers and scratch gloves; (6) Steel coils are heavy and laborious to carry, and because they are easy to corrode, they are not easy to store for a long time