单管强冷法制坯工艺对A356合金半固态坯料组织的影响  

Effects of Technological Parameters in Strong Cooling with Single-tube on Microstructure of A356 Alloy Semi-solid Billets

作　　者：郑志强[1] 熊新根[1] 胡佛涛[1] 徐静[1] 王官明[1] 

机构地区：[1]南昌大学机电学院

出　　处：《特种铸造及有色合金》2009年第12期1112-1114,共3页Special Casting & Nonferrous Alloys

摘　　要：研究了管式分散强冷技术中单管强冷制坯工艺对A356铝合金坯料组织的影响。结果表明,当冷却水流量为180L/h,浇注温度为640～650℃时,所得坯料的晶粒形状接近于球状,晶粒也较细小,满足半固态成形技术对坯料晶粒组织的要求。Effects of technological parameters in strong cooling with single-tube on microstructure of A356 alloy semi-solid billets were described.The results show that fine grain in prepared billets is approximately spherical structure with pouring at 640~650℃ and cooling at 180L/h,meeting the requirements of semi-solid forming for billets.

关 键 词：单管强冷 半固态 A356合金 工艺参数 金相组织 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG249.9[金属学及工艺—金属材料]