The use of aluminium instead of steel in engines and other products
Traditional products, equipment, devices, engines can be fully made of aluminum. Due to the special treatment of the plasma-electrolytic oxidation on the surface of the finished product forms a protective layer of aluminium oxide which has a high melting point and high hardness.
The use of aluminum instead of steel reduces the weight of equipment, products, devices to 45-50% compared to traditional equipment, products and devices. While also improving the characteristics of the final product performance and reduce the consumption of resources.
Steel parts in the products are replaced partially or completely, i.e., the final product can be made completely from aluminium. So, managed to produce an aircraft engine made of aluminium. The weight of the new engine has decreased by 20 %, power increased by 10 %, fuel consumption decreased by 15 %.
Replacement of steel parts in aluminium is done using the technology of plasma-electrolytic oxidation (it has other names: micro-arc oxidation, plasma electrolytic synthesis of oxide layers, oxidation in the electrolytic plasma surface treatment in electrolytic plasma, micro plasma electrolytic oxidation, anodic spark oxidation, etc.). The essence of the technology is that aluminum parts in the electrolytic solution is exposed to the plasma discharges, with the result that on the surface of aluminum parts forms a thin oxide layer of aluminium, which possesses high melting temperature and high hardness (of the order of 2000-5000 MPa on aluminum alloys and 5000-6000 MPa technical aluminium).
By means of plasma-electrolytic oxidation can be obtained on the aluminium oxide layers of aluminium with various predetermined properties: hard and soft protective layers, non-porous and porous, elastic and fragile. Different properties are obtained by varying the electrolyte composition and modes of the technological process.
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