차륜형장갑차 비상탈출 해치용 개방장치의 내식성 개선을 위한 시험적 연구

Abstract

In this study, an experimental study was conducted to improve the corrosion resistance of the opening device of the emergency escape hatch of a wheeled armored vehicle. Although the surface of the opening device made of alloy steel is treated with zinc electroplating to secure corrosion resistance, the emergency escape hatch is less frequently used and is exposed to external environments such as rain and moisture, so if the user's operation and maintenance is insufficient, the hatch may not be opened due to rusting and sticking inside the opening device. This may lead to a safety accident, so further improvement in corrosion resistance is required. Therefore, five cases of corrosion-resistant design methods were selected according to the specifications of zinc electroplated coating and grease application, which are factors that can improve the corrosion resistance of the opening device, and salt water spray tests were performed based on the military test standards. By comparing the corrosion occurrence time of the five specimens, an improvement effect was confirmed and a design method was selected. In addition, a structural design was proposed to fundamentally prevent rust and sticking phenomena by blocking moisture from entering the opening device.