论文部分内容阅读
在许多不断发展中的机械制造业、运输业、建筑业及动力工程部门都增加了难变形铝合金和铜合金挤压制品的需要量,生产这些制品的特点是塑性潜力小和变形速度低。例如,在采用挤压系数20～40、容许金属流动速度为1～3米/分的情况下,不润滑正向热挤压д16合金型材对,液压机的工作行程速度为0.4～2.5毫米/秒,即液压机可以利用的最大调整速度为10％,而小时生产效率限制在3～10根挤压制品。
In many growing machinery manufacturing, transportation, construction and power engineering departments have increased the demand for hard-to-deform aluminum and copper alloy extrusion products that are characterized by low plasticity and low deformation rates. For example, the use of the extrusion coefficient of 20 to 40, allowing the metal flow rate of 1 ~ 3 m / min, the positive extrusion is not lubrication д16 alloy profile pairs, the hydraulic machine working stroke speed 0.4 ~ 2.5 mm / s , That is, hydraulic machines can be used to adjust the maximum speed of 10%, while the hourly production efficiency is limited to 3 to 10 extruded products.