This paper describes the study on the flow field in the beam blank mould by means of the hydraulic experiment.

采用水力学试验的方法，对异型坯结晶器内的流场进行研究。

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Using water model, the flowing distributions based on the different SEN structures and technological parameters in beam blank mould are studied in this paper.

通过水力学模型实验，在不同水口结构和不同工艺参数的条件下对异型坯进行结晶器流场对比。

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The effect of blank quality in cold extrusion on the damage way and service life of working parts (mould and die)is analysed, and some countermeasures presented.

分析了冷挤压毛坯质量对模具的工作部分（上、下凸模和凹模）的损坏形式和寿命的影响，指出了保证毛坯质量应采取的措施。

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