tablet and ticket block system

In terms of blocking modes,there were stable blocking,standard blocking and mobile blocking.

城市轨道交通信号系统制式在国内外逐步呈现多样化和标准化的趋势,其制式按照闭塞方式分,有固定式、准移动式与移动式等。

An experimental die set with combined female die for isothermal fully enclosed die forging was designed,and the effect of die shape,billet shape and forming force on law of metal deformation and flow was studied by using the simulation experiments.

设计了一套带有组合凹模的等温闭塞式成形试验模具,利用模拟试验方法研究了模具形状、坯料形状和成形力等对金属变性流动规律的影响。

The filling capacity of the metal,forming forces and the feasibility of the die structures in the impression die forging process with small flash and the blocking impression die forging process are analyzed and compared with each other.

应用有限元模拟技术,对小型、精密听筒T铁的级进模冷锻工艺进行研究;分析对比了分别采用小飞边模锻和闭塞式模锻工艺时的金属填充能力、成形力大小和模具结构可行性;结果表明闭塞式模锻方案更适合于听筒T铁的级进模冷锻成形;提出了闭塞式模锻+开式锻造整形的听筒T铁级进模冷锻工艺路线;所提出的工艺方案不仅能有效控制材料填充,而且能减小总成形力。

The filling capacity of the metal,forming forces and the feasibility of the die structures in the impression die forging process with small flash and the blocking impression die forging process were analyzed and compared with each other.

应用有限元模拟技术,对小型、精密听筒T铁的级进模冷锻工艺进行研究,分析对比了分别采用小飞边模锻和闭塞式模锻工艺时的金属填充能力、成形力大小和模具结构可行性。