铸造冷铁布置原则的研究及验证

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摘要：借助铸造数值模拟技术对球墨铸铁件冷铁设置的部分原则及要求进行了研究及验证。研究了冷铁铺设厚度对铸件激冷效果的影响，验证了冷铁最大效用的“二分之一原则”；同时也研究了铸件的直角两侧面同时铺设冷铁的距离控制问题，确定直角两边同时铺设冷铁的最小控制距离，为今后的冷铁工艺设计提供指导。

关键词：球墨铸铁件；冷铁设置原则；冷铁厚度；数值模拟；白口组织

Research and verification of casting chill layout principle

HE Yuan

Kocel Machinery Limited， Yinchuan 750021， Ningxia， China

Abstract： This article is mainly researched and verified some principles of chiller setting by the numerical simulation technology. On the one hand， researched the thickness of chill how to influence the solidification process，verified the principle of maximum utility of chill. On the other hand， researched when the setting chill simultaneously on the two right angle faces，how to control the distance between two chills，confirmed the minimum distance and reference for the future process design.

Keywords： spheroidal graphite iron casting; chilling setting principle; the thickness of the chill; numerical simulation; white tissue

1 序言

在设计球墨铸铁件铸造工艺时，通常会设置冷铁起到激冷作用，以实现组织致密。（剩余5761字）