摘要
目的提高小口径速射自动炮内膛易损部位的抗烧蚀磨损性能,延长炮管使用寿命,提升小口径速射自动炮的作战效能。方法研制镶嵌Ta-10W内衬的身管衬套和调节塞,在某小口径导气式转膛自动炮上进行实弹射击试验,测试弹丸炮口初速、射频以及被试品关键尺寸磨损量,并与采用全炮钢被试品的试验结果进行对比,评价内膛镶嵌Ta-10W内衬对提升炮管寿命的效果。结果自动炮镶嵌Ta-10W内衬,在射击580发炮弹后,身管衬套阳线、阴线内表面以及调节塞导气孔直径磨损量分别较全炮钢减小了57.14%、40.00%、91.23%,而弹丸初速和射频变化量也分别较全炮钢减小了82.56%和93.33%。结论内膛镶嵌Ta-10W内衬的方法克服了钽及其合金炮膛易损部位钢基体表面涂层容易脱落的问题,能够大幅度提高内膛易损部位的抗烧蚀磨损能力,为小口径速射自动炮延寿设计提供了新的技术途径。
To enhance the ablative resistance,extend the barrel life and improve combat effectiveness of the small-caliber rapid-firing automatic gun,the barrel bushing and adjusting cylinder inlaid with Ta-10W lining are manufactured and applied on the automatic gun.Then the shooting experiment upon a small-caliber gas-driven revolving gun is carried out to measure the muzzle velocity,the firing rate and the abrasion loss of the tested object.The above experiment data are compared with those obtained from the automatic gun with steel parts to evaluate the life-prolonging effect of the proposed method.The results show that,by using the barrel bushing and adjusting cylinder inlaid with Ta-10W lining,the abrasion losses of the land diameter of the barrel bushing,the groove diameter of the barrel bushing and the orifice diameter of the adjusting cylinder decrease 57.14%,40.00%and 91.23%,respectively,and the variations of the muzzle velocity and the firing rate before and after firing decrease 82.56%and 93.33%,respectively,after 580 firings.The proposed method solves the problem of Tantalum coating peeling off,and thus greatly enhances the ablative resistance of the gun barrel inner bore.This study provides a new technological method for extending the barrel life of the small-caliber rapid-firing automatic gun.
作者
林圣业
明夏雷
李浩
王茂森
戴劲松
LIN Sheng-ye;MING Xia-lei;LI Hao;WANG Mao-sen;DAI Jin-song(School of Mechanical Engineering,Nanjing University of Science and Technology,Jiangsu Nanjing 210094,China;State-owned No.152 Factory,Chongqing 400071,China)
出处
《装备环境工程》
CAS
2022年第7期51-57,共7页
Equipment Environmental Engineering
基金
基础加强计划项目(201XXX135)。
关键词
小口径速射自动炮
身管衬套
调节塞
Ta-10W
磨损量
弹丸初速
射频
small caliber rapid firing automatic gun
barrel bushing
adjusting cylinder
Ta-10W
abrasion loss
muzzle velocity
firing rate
