EV - motor case
Motor case is a part that protects motor from harmful substances such as dust and particle. It also helps to decrease assemble time and extend service time. In order to operate electric motor, it requires to secure safety from high voltage and high current. PEO treatment provides insulation, dielectric, heat resistance, and electric magnetic shielding.
In order to improve mileage, energy efficiency, and top speed etc., batteries are developed to be larger in output. PEO surface treatment, which covers aluminum and magnesium battery case, improves insulation, durability and high current.
Cylinder block, which compromise engine, weighs ¼ of a whole vehicle in general. As a result, it tends to built by aluminum for light weighing. Cylinder block is one of main hydraulic components that creates hydraulic fluids by relative motion over pistons. The block needs strength to survive from combustion stroke, which creates enormous heat and pressure. It also requires enough density to cool down the cylinders inside and directly/indirectly support block head components. PEO surface treatment guarantee weight lightning, wear resistance, heat-resistance, and durability.