关键词: 防弹玻璃；失效改进；故障树

Abstract: In order to improve the service life of bulletproof glass assembly and reduce the blooming and delamination of bulletproof glass assembly during use. This paper analyzes the delamination of the bulletproof glass of a heavy general tactical vehicle and establishes a fault tree, and uses the "double five" standard method of the aerospace quality problem handling principle to check and confirm the possible causes of failure, such as process parameter factors, raw material factors, manufacturing process factors, external environmental factors, and so on. The main reason for determining the failure is that the expansion coefficient of glass is different from that of polycarbonate (PC) board at high temperature, and the deformation of expansion and stretching has been carried out between them. By optimizing the glass assembly production process and external storage protection equipment and other improvement measures, the improvement effect is obvious, thus improving the service life of bulletproof glass and improving the quality performance of products.

Key words: Bulletproof glass; Failure improvement; Fault tree