击针是高射武器的重要零件,使用条件苛刻,零件结构特殊,工作部位“乳头”截面积较小,如在冷、热加工中稍不注意或检验把关不严,就会造成质量隐患,如“乳头”部位有刀伤、腐蚀点或联结不圆滑、表面粗糙度差等,都会影响寿命。本文主要就热处理方面出现的且容易被人忽视的疵病加以分析,以供参考。 Shooting needle is an important part of the high-fired weapons, the use of harsh conditions, the special structure of the parts, the working part of the “nipple” cross-sectional area smaller, such as cold and hot processing in a little attention or inspection laxity, it will cause quality problems, “Nipple” parts have knife wounds, corrosion points or joints are not smooth, poor surface roughness, etc., will affect the life expectancy. This article focuses on heat treatment and easy to overlook the flaws to be analyzed for reference.