摘要
本文根据铸锭用空心微珠冒口缩孔形成过程的特点,以实验测试的方法测定了冒口的补缩过程。通过对数据样条研究的结果表明:冒口的补缩特性受浇注工艺等诸因素的影响,但均具有指数函数y=Ae^(-B/x)的特征。作者认为,其结果有助于深入认识铸件的凝固机理,特别是对冒口下偏析规律的研究。并为定量地研究冒口对铸件的补缩以及冒口的热工过程提供了依据。
The present work is an attempt to measure the requirements for feed metalin time increments with FHP insulating rot-top. The cuve has been obtuined byway of cubic splie function. It is in the form of the exponet function y=Ae^(-B,X).The authors think it is important to the understanding of casting solidificationand helpful in computing under reset segregation. In addition, this results ishelpful in computing the thermal efficiency of the rot-top and it's design.
关键词
凝固收缩
缩孔
空心微珠冒口套
铸锭
补给量
三次样条
热帽
solidification contraction
shrinkage
FHP insulating sleeve
steel ingot
feed metal
cubic spline fanction
hol-top
