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应用均衡凝固理论消失模小型铸件群注金字塔组合工艺
Lost Foam Casting Process for a Pyramid Shaped Cluster of Small Patterns with Proportional Solidification Theory
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- DOI:
- 作者:
- 刘立中
LIU Lizhong
- 作者单位:
- 杭州规矩铸造设备有限公司
Hangzhou Guiju Casting Machinery Ltd.,Hangzhou 311400,China
- 关键词:
- 借用型腔做浇道 均衡凝固 小件金字塔群注
using the cavity as a runner proportional solidification lost foam pattern cluster like pyramid
- 摘要:
- 通过复杂浇注系统对消失模铸件成形损害的分析,提出借用型腔做浇道,极致简化浇注系统理念,不是仅仅为了节省一点液态金属,出发点和要达到的目的是:小件变大件,减少复杂浇注系统的热量丢失,使液态金属携带的有效热量都作用到型腔泡沫;同时杜绝浇注系统泡沫对型腔的污染。介绍小型铸件金字塔组合群注工艺演示借用型腔做浇道,也是应用均衡凝固理论的实例。
Based on the analysis of damage of complex gating system on formability in expendable casting process,an idea using mold cavity(lost foam pattern)as runner to simplify gating system was put forward.This method not only saves liquid metal but also reduce heat loss during pouring,thus the effective heat carried by liquid metal can be act on form pattern,and also prevent contamination of gating foam pattern on mold cavity.Pyramid shaped clusters of lost foam patterns were made in which mold cavity was used as runner.The pyramid shaped clusters made of lost foam patterns were poured and casting quality was good.This is also an example of applying proportional solidification.