- 期刊
- OpenAccess
Application of Cryogenic Treatment to Enhance Target Accuracy of 410 Stainless Steel Sniper Barrel
應用超冷處理提升410不銹鋼狙擊槍管精度之研究
摘要
Cryogenic treatment can effectively improve the shooting accuracy and extend the shooting lifespan of the barrel. This study mainly aims to use cryogenic treatment for the SS410 stainless steel sniper barrel manufactured by the 205 Arsenal, and to evaluate the feasibility of using cryogenic treatment to improve the shooting accuracy and shooting lifespan of the SS410 stainless steel sniper barrel. The wear resistance test, vickers hardness test, optical microscope (OM), shooting test and endoscope were used to verify the benefits of cryogenic treatment for SS410 stainless steel sniper barrel. The experimental results show that after cryogenic treatment, the SS410 stainless steel sniper barrel has a lower coefficient of friction, smaller grain size, better shooting accuracy and less copper fouling residue. However, there is no obvious change in hardness. Based on the above analysis, the SS410 stainless steel sniper barrel after cryogenic treatment can effectively improve its shooting accuracy and the ease of cleaning the barrel.
並列摘要
超冷處理具有可消除殘留應力、提升尺寸穩定性、增加耐磨耗性能等優點，許多文獻指出超冷處理可有效提高槍管之射擊精度、延長槍管射擊壽命且已將此技術應用於各式槍管或槍枝零配件中。本研究的目的主要是針對軍備局205兵工廠所生產之410不銹鋼狙擊槍管進行超冷處理，評估應用超冷處理技術提升410不銹鋼狙擊槍管射擊精度及射擊壽命的可行性。透過耐磨耗試驗、維克式硬度試驗、微觀組織觀察、實際射擊試驗及槍膛內視鏡觀察，驗證超冷處理對於410不銹鋼狙擊槍管的效益。研究實驗結果表明，經由超冷處理後410不銹鋼狙擊槍管具有較低的摩擦係數、較小的晶粒大小、較佳的射擊精度及較少的銅污殘留量，惟硬度方面無明顯變化。綜合以上分析，經由超冷處理後之410不銹鋼狙擊槍管可有效提升其射擊精度及增加槍管易潔性。