Preparation method of corrosion-resistant aluminum alloy profile for radiators

A corrosion-resistant aluminum alloy and heat sink technology, which is applied in the field of aluminum alloy material processing, can solve problems such as aluminum alloy substrate corrosion, perforation leakage, etc., and achieve the effects of good impact resistance, good thermal conductivity, and excellent corrosion resistance

Inactive Publication Date: 2014-04-09
WUHU WANRUN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the water quality pH>10, the radiator is very prone to corrosion of the aluminum alloy substrate, and even perforation causes leakage.

Method used

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Experimental program
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Effect test

Embodiment Construction

[0014] A method for preparing a corrosion-resistant aluminum alloy profile for a radiator, comprising the following steps:

[0015] (1) Meet the following requirements according to the mass percentage of elements: Mg 0.6-1.2, Si 0.2-0.4, Cu 1.4-1.8, Ag 0.5-1.0, Fe 0.4-0.6, Mn 0.05-0.15, Cr 0.1-0.2, Zn 0.3-0.5 , Ti 0.1-0.15, Ni 0.1-0.2, Ta 0.05-0.1, Sb 0.04-0.08, Sc 0.03-0.05, La 0.02-0.03, Ho 0.01-0.02, the balance is Al for batching, and the charge is put into the medium frequency induction furnace, Heat to 735-755°C, wait until the charge is completely melted, stir for 30 minutes, remove the slag, check the alloy composition and adjust; then add refining agent for refining, the refining temperature is 720°C, and the refining time is 20 minutes. Casting after slag, the casting temperature is 710°C, and the casting speed is 15mm / min;

[0016] (2) Homogenize the cast slab: first heat up at 180°C / h to 360°C, hold for 4 hours, then cool down at 100°C / h to 180°C, hold...

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Abstract

The invention discloses a preparation method of a corrosion-resistant aluminum alloy profile for radiators. The aluminum alloy profile comprises the following elements in percentage by mass: 0.6-1.2% of Mg, 0.2-0.4% of Si, 1.4-1.8% of Cu, 0.5-1.0% of Ag, 0.4-0.6% of Fe, 0.05-0.15% of Mn, 0.1-0.2% of Cr, 0.3-0.5% of Zn, 0.1-0.15% of Ti, 0.1-0.2% of Ni, 0.05-0.1% of Ta, 0.04-0.08% of Sb, 0.03-0.05% of Sc, 0.02-0.03% of La, 0.01-0.02% of Ho and the balance of Al. The aluminum alloy profile prepared by the method has the advantages of high strength, favorable thermal conductivity, favorable impact resistance, low notch sensitivity, favorable plasticity and excellent corrosion resistance, can be used in a liquid with the pH of higher than 10 and the temperature of 90 DEG C for a long time, and improves the working reliability and service life of the radiators.

Description

technical field [0001] The invention relates to a method for preparing a corrosion-resistant aluminum alloy profile for a radiator, and belongs to the technical field of aluminum alloy material processing. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in the industry. Because of its low density and relatively high strength, which is close to or exceeds high-quality steel, it has good plasticity, excellent electrical conductivity, thermal conductivity, and corrosion resistance. Processed into various profiles, widely used in machinery manufacturing, transportation machinery, power machinery and aviation industry, etc. Due to the advantages of large heat dissipation, light weight and beautiful appearance, aluminum alloy profiles have become the first choice to gradually replace other radiator products in modern life. However, when the water quality pH>10, the radiator is very prone to corrosion of the aluminum al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/18C22C1/06C22F1/057
Inventor 吴贤春
Owner WUHU WANRUN MACHINERY
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