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Application of marine aluminum plate in ships

The marine aluminum plate has wide application in ships due to the low density of aluminum, abundant resources, moderate price, good formability and processing performance. In addition, the aluminum plate marine grade has the advantages of strength is not low, and non-magnetic, weldability is also good, especially some friction stir welding ( FSW) performance, strong corrosion resistance, no low temperature brittleness, its strength and plasticity (elongation, compressibility, toughness) will rise in a balanced manner with the decrease of temperature, and can be at minus 200 ℃ or lower temperature Work; high temperature performance is acceptable, but can not work for a long time above 180 ℃, strong recyclability, in the current application of structural metal materials, the recycling rate is relatively high, etc.


marine aluminum plate


If you want to reduce the quality of the hull, choosing aluminum plate is the current best choice. At the same strength as steel, the quality of aluminum alloy structure is about 35% to 52% of that of low-carbon steel, and at the same stiffness as steel, the quality of aluminum structure is about 50% of steel. It can be seen that in order to reduce the quality of the ship, aluminum plate is the preferred material for the manufacture of hulls, superstructures and other warehouse surface appliances, especially for the manufacture of planing boats, hydrofoil craft, hovercraft, and wing craft. Because their mass is particularly sensitive to speed, which means that reducing the mass of the hull is extremely effective in increasing speed.


In order to improve the living conditions of passengers on passenger ships, it is necessary to expand the living area and increase the superstructure, and the stability of the ship may decrease. However, widening the width of the ship can improve the stability of the ship, but the speed will be reduced. The use of marine aluminum plate alloy superstructure can effectively resolve this contradiction, that is, under the premise of maintaining sufficient stability, the superstructure can be enlarged to improve the living conditions. purpose.


The use of marine aluminum plate to manufacture the hull and superstructure of cargo ships can increase cargo capacity or speed, thereby reducing transportation costs. Due to the non-magnetic nature of aluminum, it is an excellent material for manufacturing minesweepers and special purpose ships and devices. Because aluminum is a good low-temperature material, it is a good material for manufacturing liquefied natural gas (LNG) tanks and polar operation survey ships.


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