车钩是指火车车皮或机车两端的挂钩，有连结、牵引及缓冲的作用。车钩是用来实现机车和车辆或车辆和车辆之间的连挂，传递牵引力及冲击力，并使车辆之间保持一定距离的车辆部件。
浅谈人为提车钩的危害和防治_建筑科学论文 关键词：车钩；人为；危害与防治 [gap=666]Keywords: coupler; human; hazards and control
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Tight-lock coupler casting yield can be increased by 9% and the consumption of raw materials reduced and the economic benefits increased.
通过本课题研究,密接式车钩铸件出品率可以提高9%,降低了原料消耗,提高了工厂的经济效益。
参考来源 - 基于数值模拟密接式车钩工艺改进·2,447,543篇论文数据，部分数据来源于NoteExpress
SA-3型车钩。
车钩结构要随着列车重量和速度的提高而不断更新。
The structure of couplers should be updated continuously with the increase of train weight and speed.
对运行中货车车钩分离的原因进行了分析，并提出了相应的防范措施。
The causes to separation of freight car couplers in operation are analysed, and relevant preventative measures are put forward.
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