The reason was searched why the lock pins of tin bronze would break by means of macroscopic examination, chemical analysis, metallographic test, electron microscopic observation and EDS.
采用宏观检查、化学分析、金相检验、电镜观察、断口能谱法分析了锡青铜闭口销的断裂原因,结果表明,闭口销的断裂是由于材料成分差错,导致其在应力腐蚀作用下早期断裂。
Using neural network to estimate the skin effect cofficient of squirrel-cage close-slot high-speed asychronous motor;
利用神经网络预测高速变频电机转子闭口槽集肤效应系数
The study of shedding motion of the heald frame abodt opening angle different from shutting angle;
开闭口角不等的综框组合运动规律的探讨
The paper discusses the shedding motion of the frame about opening angle different from shutting angle, applying common shedding regular patterns, studies three combining curve equations suited to technological requirements of shed by means of choosing different opening angle, and gives the feature analysis and comparison each other.
本文利用综框常用的运动规律， 推导出适宜开口工艺要求的三种开口角与闭口角不等的组合曲线方程， 探讨了开口角不等的踏盘开口综框运动规律， 并对各运动规律作了特性分析和比