Several factors related to the ion of industrial aluminum profiles
发布时间：2019-11-04 浏览次数：0
Hardness Many customers are very concerned when purchasing aluminum. The hardness is directly related to the chemical composition of the alloy. Secondly, different states also have a great influence on the hardness. From the point of view of the hardness that can be achieved, 7-series, 2-Series, 4-series, 6-series, 5-series, 3-Series and 1-series decrease in turn. Two, intensity Strength is an important factor to be considered in product design. When aluminum alloy components are used as components, appropriate alloy should be selected according to the pressure. The strength of pure aluminum is the lowest, while that of heat-treated alloys of system 2 and 7 is higher. III. corrosion resistance Corrosion resistance includes chemical corrosion and stress corrosion resistance. Generally speaking, the corrosion resistance of 1-series pure aluminum is higher, 5-series is better, followed by 3-Series and 6-series, 2-Series and 7-series are worse. The selection principle of corrosion resistance shall be determined according to the application situation. In the corrosion environment of high strength alloy, all kinds of composite materials for corrosion protection must be used. IV. processability Machining performance includes shaping performance and cutting performance. Because formability is related to the state, the strength range of various states should be considered after selecting the aluminum alloy brand. Generally, the material with high strength is not easy to form. In the process of bending, drawing and deep drawing, the formability of annealed aluminum is the best, while that of heat-treated aluminum is the worst. The machinability of aluminum alloy is poor, which needs better machinability for molds, mechanical parts, etc. on the contrary, the machinability of low strength is poor. For products that need to be machined such as molds, mechanical parts, etc., the machinability of aluminum alloy is an important consideration. V. weldability Most of the aluminum alloys have no problems in weldability, especially some of the 5 series aluminum alloys are designed for welding consideration. On the contrary, some of the 2 series and 7 series aluminum alloys are difficult to weld. Vi. decoration performance When aluminum is used in decoration or some special occasions, the surface of aluminum needs to be anodized, coated and other processing to obtain the corresponding color and surface structure. At this time, the decoration should be focused on. Generally speaking, the materials with good corrosion resistance have excellent anodizing, surface treatment and coating performance.
