| 摘要 |
An anticorrosive test method for chassis and steel sheet parts of a vehicle is provided to quantitatively estimate anticorrosion property and to shorten test time without damaging a coating. An anticorrosive test method for chassis and steel sheet parts of a vehicle includes the steps of: preparing an electro-deposition coated part of a vehicle body/chassis, and cutting the electro-deposition coated part into a predetermined length; preparing an electric chemical cell including an corrosion test tub provided with a working electrode, an auxiliary electrode, and a reference electrode, and then calculating corrosion current density through a copper potential polarization test; applying charge to a sample loaded in the corrosion test tub through constant current appliance as much as usage years; estimating deterioration of a point which is accelerated electric chemical through impedance spectroscopy; and proving endurance of coated films for each test part to guarantee anticorrosion. |
