Aluminum alloy has the characteristics of low density, good mechanical properties, good processing performance, non-toxic, easy to recycle, excellent electrical conductivity, heat transfer and corrosion resistance, etc., in the marine industry, chemical industry, aerospace, metal packaging, transportation, etc. Widely used in the field.
Aluminum and aluminum alloys are used more and more widely in the shipbuilding industry, ranging from small motorboats to 10,000-ton oil tankers, from offshore hovercraft to submarine submarine, from civil to military, from fishing vessels to marine mining vessels, all with excellent comprehensive performance The aluminum alloy produces ship shells, support structures, supporting facilities, pipelines, etc.
Aluminum alloy used in the marine industry can reduce the overall weight of the ship, increase the speed of the ship, and resist the corrosion of the ship by seawater. The aluminum alloys used in the marine industry are mainly aluminum-copper alloys, aluminum-magnesium alloys and aluminum-silicon alloys. Aluminum-copper alloy is widely used in ships in my country and Russia, but its poor seawater corrosion resistance hinders its development in the shipbuilding industry.
Aluminum-magnesium alloys are mainly used for hull shells, water pump pipes, pump shells and frame brackets, etc. The grades are 5083, 5086, 5456, 5466, etc. The aluminum-silicon alloy has moderate structural strength, good fluidity, and strong filling ability. It is easy to produce components with high density and complex structure, such as high-pressure valves, cylinder blocks, pumps, gearbox casings, turbine blades, etc.