扁挤压筒是挤压大型扁宽薄壁板材最有效的工具.综述了扁挤压筒的一般设计原则、 研究现状及扁挤压筒的优化方式.发现可以通过改变扁挤压筒整体结构、 孔型、 新结构、 温度场和新材料等方面降低其应力峰值,达到延长其使用寿命的效果.%Flat container is the most effective tool for extruding large flat sheet .The design principles of flat container, the research status and the optimization of flat container were introduced .The stress peaks of flat container must be reduced by such as changing the structure , the pass, the temperature field and materials , and the service life can be prolonged .
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