Views: 0 Author: Site Editor Publish Time: 2022-12-05 Origin: Site
Aluminum has been used in the industry for a long time and has achieved excellent results. Aluminum has gradually become the main material for painting boats, fishing boats, yachts, etc., and aluminum is very good in terms of corrosion resistance and cost. And after so long of research aluminum alloy became the main material for general-purpose boats, replacing wood. Now aluminum ambulance boat is more and more popular among people. In the long-term development, the boats have gradually changed from wood to metal, and aluminum boats have gradually entered people's field of vision. An aluminum boat is a kind of large-scale marine driving equipment. Its components are very complicated. When purchasing, you need to consider many factors to ensure that you will not buy inferior aluminum boats. Next, let's take a look at the selection advantages of aluminum alloys for aluminum boats.
Here is the content list:
l The aluminum boat has a high specific strength and specific modulus.
l The aluminum boat has excellent welding performance.
l The aluminum boat has excellent corrosion resistance.
l The aluminum boat has good cold and hot-forming properties.
The yield strength and elastic modulus of materials are the most basic parameters to calculate the structural strength and size of ships. Since the elastic modulus and density of various aluminum alloys are roughly the same, adding a small amount of alloying elements or changing the heat treatment state has little effect on them. Therefore, increasing the yield strength in a certain range is beneficial to reducing the weight of the aluminum boat structures. Generally, the density of aluminum alloy is about 2.7~2.8/cm3, and the elastic modulus is about 70~73GPa. However, it is often difficult for high-strength aluminum alloys to have both excellent corrosion resistance and solderability. Therefore, Marine aluminum alloy generally chooses medium strength and corrosion-resistant aluminum alloy. In addition, the cast aluminum alloy also has a certain application in the field of ships.
For ships, welding connection has obvious advantages over riveting, so welding connection has been widely used in shipbuilding, basically replacing the riveting structure. At present, automatic argon arc welding is mainly used in the construction of aluminum fish farm boats. Good weldability of aluminum alloy means that aluminum alloy has a small tendency to crack in the welding process, that is, aluminum alloy has good welding crack resistance, and the performance of the welded joint after welding does not change much. Because in shipbuilding conditions, the properties lost by welding cannot be recovered by reheat treatment, which is one of the important characteristics of Marine aluminum alloy different from other structural aluminum alloys. The strength of AL-Zn-Mg series and AL-Mg-Si series alloys decreases obviously after welding, and the corrosion resistance of AL-Zn-Mg series alloys is also poor after welding, so these two series of alloys are used as Marine materials for welding. However, Al-Mg alloys do not have this disadvantage. AL-Zn-Mg alloy is mainly used for heat-treated parts after welding (such as torpedo housings), and AL-Mg-Si alloy is mainly used for profiles.
Aluminum boat structure is mostly used in harsh seawater medium and Marine environment, so aluminum alloy corrosion resistance is one of the main signs to judge whether it can be used as Marine aluminum alloy. It is generally required that Marine aluminum alloy substrate and welded joints are not susceptible to stress corrosion, spalling corrosion, and intergranular corrosion in seawater and Marine environment. Try to avoid contact corrosion, crevice corrosion, and Marine biological adhesion corrosion; Small uniform corrosion and corrosion both allow a point.
The aluminum boat should be cold-worked (such as edge wrapping, edge wrapping, rolling, stamping, etc.) and hot-worked (such as hot bending, fireworks, etc.) during construction. Therefore, Marine aluminum alloy is required to be easy to process, have no cracks and other defects in the process, and can still meet the strength, corrosion resistance, and other performance requirements after processing.
If you are interested in our aluminum fishing boat products or have other needs, please feel free to contact us. Our official website is https://www.yamaneboat.com/. Our cost-effective products will bring you a better experience.
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