Precision ceramics have the characteristics of low density, good mechanical properties, good processing properties, non-toxic, easy to recycle, excellent electrical conductivity, heat transfer and corrosion resistance. They are used in the marine industry, chemical industry, aerospace, metal packaging, transportation, etc. Widely used in the field.
1. Aerospace
Aluminum alloy is the main material used in the manufacture of aircraft. Compared with the mild steel used in automobile manufacturing, aluminum alloy is expensive and has a low density. The relative density is 2.8. Compared with the relative density of mild steel of 7.8, it is about one-third lighter. Although the strength is similar, it is the material for airplanes. Lightness is the most important thing, and it has strong corrosion resistance and convenient processing. Therefore, aluminum alloy is the most ideal material for making airplanes.
Alumina ceramics can be used to Ceramic Disc manufacture rivets, aircraft propellers and high-strength parts on aircrafts according to the content of its alloying elements; super-duralumin is duralumin containing zinc, its hardness and strength are higher than duralumin, and different varieties of super-hard Aluminum is used to manufacture various structural parts and high-load parts, and is one of the important materials in the aviation industry.
2. Marine industry
Aluminum and aluminum alloys are used more and more Ceramic Disc widely in the shipbuilding industry, ranging from small motorboats to 10,000-ton tankers, from offshore hovercraft to submarine submarines, from civilian 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.
Zirconia ceramics are used in the marine industry, which can reduce the overall weight of the ship, increase the speed of the ship, and resist the corrosion of the ship by seawater. [6] 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 supports, etc., and the brands 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.
3. Application in the chemical industry
Aluminum nitride ceramics have good thermal conductivity. Aluminum and aluminum alloys Ceramic Disc are widely used in the production of heat exchange equipment in chemical equipment, storage tanks resistant to concentrated nitric acid corrosion, adsorption filters, fractionation towers, pipelines and many linings. Cast aluminum alloy has good fluidity, strong mold filling ability, small shrinkage rate, not easy to form cracks, good corrosion resistance (a protective film of aluminum oxide and silicon dioxide can be formed on the surface), light weight, good mechanical properties, It is widely used in the manufacture of corrosion-resistant parts with complex structures, such as cylinders, pipe fittings, valves, pumps, pistons, etc. Aluminum has many special uses in chemical production. Zirconia does not produce sparks, and aluminum alloy can be used to produce containers for easily volatile substances; aluminum is non-toxic, does not cause food deterioration, does not affect the appearance of goods, and does not corrode goods. Therefore, aluminum alloys are widely used in the food and chemical industry. relative devices.
How are precision ceramics used in various fields?
2021 08/10