Aluminum alloy with good toughness and difficulty of cracking for doors and windows

A technology with good toughness and aluminum alloy, applied in the field of aluminum alloy, can solve the problems of general aluminum alloy corrosion resistance, low temperature toughness decline, insufficient strength, etc., to improve processing performance and welding performance, improve low temperature toughness, and improve quality. Effect

CN104532087AInactive Publication Date: 2015-04-22合肥派成铝业有限公司
6 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-04-22
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention discloses an aluminum alloy with good toughness and difficulty of cracking for doors and windows. The aluminum alloy is characterized by consisting of the following elements in percentage by mass: 0.20-0.25% of chromium, 0.2-0.4% of titanium, 0.1-0.2% of cerium, 0.11-0.14% of yttrium, 0.15-0.17% of strontium, 0.2-0.25% of lead, 0.7-0.9% of copper, 1.1-1.3% of zinc, 1.0-1.3% of silicon, 0.20-0.22% of germanium, 0.15-0.25% of lithium, and the balance of aluminum and impurities. The added components of cerium, yttrium, zinc and the like can improve the corrosion resistance of the alloy, improve the low-temperature toughness and cracking property, the processing performance and the welding performance, enhance the quality of the aluminum alloy, and meanwhile meet the decoration requirement of buildings and the cost requirement of most of people.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of aluminum alloys, in particular to an aluminum alloy for doors and windows that has good toughness and is not easily broken. Background technique

[0002] As the most typical lightweight material among metal materials, aluminum alloy has the advantages of low specific gravity, easy processing, and low cost, and has been widely used in both military and civilian applications. As aluminum alloy has the advantages of convenient maintenance, good decorative effect, and light weight, it is more and more widely used in doors and windows, but because it is used outdoors, it is often affected by weather such as wind, rain, and exposure, and the corrosion resistance of ordinary aluminum alloys is average. , the strength is not high enough, the low temperature toughness decreases, and the occurrence of easy fracture in winter, etc., so the aluminum alloy profiles with better performance and lower cost are needed. The present ...

Examples

Embodiment Construction

[0013] specific implementation plan

[0014] The present invention will be described in detail below through specific examples.

[0015] An aluminum alloy for doors and windows with good toughness and not easy to break is characterized in that it is composed of the following elements by mass percentage: chromium 0.22, titanium 0.3, cerium 0.1, yttrium 0.13, strontium 0.16, lead 0.2, copper 0.8, zinc 1.2, Silicon 1.1, germanium 0.21, lithium 0.19, the balance is aluminum and impurities;

[0016] A kind of aluminum alloy for doors and windows with good toughness and not easy to break according to the present invention, the casting process is as follows:

[0017] (1) Make all the alloy materials into fine powders for later use, add 40%-60% aluminum powder to the intermediate frequency furnace, heat to 720-740°C, stir at low speed after the aluminum powder is fully melted, and then add zinc , silicon, copper, chromium alloy components, melting at 800-820°C, after melting, lower...