早在1890年美国就开始研究铝弹壳,以后不久,德国、英国和澳大利亚也相继开始研究。但是,由于都没有研制出符合高性能弹壳要求的具有优良强度与韧性综合性能的铝合金,所以射击时发生从弹壳侧壁小孔、裂纹或底火壳周围泄漏发射药气体,造成弹壳严重烧穿破坏。 As early as 1890, the United States began to study the aluminum shell. Shortly afterwards, Germany, Britain and Australia also started to study. However, none of these aluminum alloys have been developed to meet the requirements of high-performance shell shells and have excellent combination of strength and toughness. Therefore, shotgun gas leaks from small holes, cracks or the shell around the shell during shooting, resulting in serious burning of shell shells damage.