A kind of 3003 aluminum alloy for the core material of aluminum alloy radiator water pipe

Abstract

The invention provides a 3003 aluminum alloy for a core material of an aluminum-alloy radiator water tube. The 3003 aluminum alloy can be used for effectively improving soldered yield strength of the radiator water tube and prolonging the service life of the radiator. The 3003 aluminum alloy is characterized by comprising the following materials (based on 100 total mass parts): not more than 0.6 part of magnesium (Si), not more than 0.7 part of iron (Fe), 0.2-0.45 part of copper (Cu), 1-1.5 parts of magnesium (Mn), 0.1-0.35 part of magnesium (Mg), not more than 0.1 part of zinc (Zn), and the balance of aluminum (Al) and inevitable impurity elements.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy materials, in particular to an aluminum alloy used for water pipes of aluminum alloy radiators, in particular to a 3003 aluminum alloy used as a core material for water pipes of aluminum alloy radiators. Background technique [0002] An aluminum alloy radiator water pipe, which is made of a composite strip made of brazing filler metal 4343 standard aluminum alloy, 3003 standard aluminum alloy core material and water side protective layer 7072 aluminum alloy through high-frequency welding or lap jointing. The aluminum alloy radiator water pipe and the aluminum alloy fin material are welded into a whole by brazing. The 3003 standard aluminum alloy contains the following materials with a total mass fraction of 100 parts: silicon (Si) ≤ 0.6 parts, iron (Fe ) ≤ 0.7 parts, copper (Cu) 0.05-0.2 parts, manganese (Mn) 1-1.5 parts, magnesium (Mg) ≤ 0.05 parts, zinc (Zn) ≤ 0.1 parts, the rest is alumi...

AI Technical Summary

Problems solved by technology

[0002] An aluminum alloy radiator water pipe, which is made of a composite strip made of brazing filler metal 4343 standard aluminum alloy, 3003 standard aluminum alloy core material and water side protective layer 7072 aluminum alloy through high-frequency welding or lap jointing. The aluminum alloy radiator water pipe and the aluminum alloy fin material are welded into a whole by brazing. The 3003 standard aluminum alloy contains the following materials with a total mass fraction of 100 parts: silicon (Si) ≤ 0.6 parts, iron (Fe ) ≤ 0.7 parts, copper (Cu) 0.05-0.2 parts, manganese (Mn) 1-1.5 parts, magnesium (Mg) ≤ 0.05 parts, zinc (Zn) ≤ 0.1 parts, the rest is aluminum and unavoidable impurity elements , during the use of the aluminum alloy radiator water pipe, the yield strength of the 3003 aluminum alloy used as the core material after brazing is too low, so the radiator water pipe is prone to deformation or even cracking in a high-pressure working environment, and the service life of the radiator is low