摘要
介绍了局部补压、带供料系统双重挤压和镁合金件双重挤压实例。认为:要实施双重挤压,必须使用有计算机控制的3动的挤压设备;设计可预合模并留有一定压下量(锻压量)的挤压模具;要正确选择好浇注、第1次挤压和第2次挤压的时机;控制好各工艺参数,则可以生产出内部组织致密、表面光洁、尺寸精确并可进行热处理的优质铸件。
Some examples, such as local compensatory pressure, dual squeeze with charging system and dual squeeze of magnesium alloy casting, were presented. In order to realize dual squeezing, it is required to control the extruder by a computer; design the pre-closing die and extrusion die with some deformation ratio, choose the time of filling, the first extrusion and the second extrusion correctly and control processing parameters. Subsequently, the casting with dense structure,smooth surface correct dimensions can be manufactured.
出处
《铸造技术》
CAS
北大核心
2008年第3期307-311,共5页
Foundry Technology
关键词
挤压铸造
双重挤压铸造
连铸连锻
铸
锻双控成型
Squeeze casting
Dual squeeze casting
Continuous casting and forging
Casting-forging double control forming
