论文部分内容阅读
前言在生产高质量铝制品时,一项主要的要求是严格地控制铸造组织.细晶粒的铸造组织可以在技术和经济方面提供很多效益.控制晶粒尺寸的最好方法是向金属熔体中加入能形成晶核的粒子.这些粒子在铝熔体凝固时成为新晶粒的核心.这些成核剂通常是以一种铝中间合金的形式加入的.本文考察了工业纯铝和向铝中添加了细化晶粒的成核粒子这样两种金属熔体的凝固情况.
Preface A major requirement in the production of high quality aluminum products is the strict control of the foundry organization.The fine grain foundry organization offers many technical and economical benefits.The best way to control the grain size is to introduce the metal melt Added to form nuclei particles These particles in the aluminum melt solidification become the core of the new crystal These nucleating agents are usually added in the form of an aluminum master alloy In this paper, the industrial pure aluminum and aluminum In the addition of refined grains of nucleated particles such two solidification of the metal melt.