A356铝合金半固态浆料的蛇形通道制备工艺  

Preparation of Semisolid A356 Alloy Slurry Through a Serpentine Channel

作　　者：张云涛[1] 毛卫民[1] 陈正周[1] 高小勇[1] 

机构地区：[1]北京科技大学铸造研究所,北京100083

出　　处：《铸造》2011年第8期739-742,共4页Foundry

基　　金：国家高新技术研究发展计划资助项目(2006AA03Z115);国家重点基础研究发展计划资助项目(2006CB605203);国家自然科学基金资助项目(50774007)

摘　　要：采用蛇形通道浇注工艺制备了A356铝合金半固态浆料。结果表明：采用内径为20mm的四个弯道的蛇形通道可以在660～680℃制备1．5～1．8kg的A356半固态浆料，蛇形通道内腔只有少量的挂料，便于清理；在浆料的径向上，从心部到边部初生α－Al形态的差别很小，呈颗粒状或近球状。The semisolid slurry of A356 aluminum alloy was prepared through a serpentine channel. The experimental results show that the suitable semisolid A356 alloy slurry can be made through a serpentine channel, which is 20 mm in the inner diameter and has 4 bends. The slurry weighs between 1.5 kg and 1.8 kg and pouring temperature is from 660 ℃ to 680 ℃. Moreover the solidified shell in the serpentine inner surface is very thin and easy to be removed. The morphology of the primary α-Al phase along the radial direction of the slurry crucible is mainly spherical or near-spherical and has little difference.

关 键 词：半固态浆料 A356铝合金 蛇形通道 初生Α-AL 

分 类 号：TG292[金属学及工艺—铸造]