。776° 北京科技大学学报 第32卷 制开发的锥桶式流变成形机与卧式冷室压铸机相结 1167 合，实现了从半固态浆料制备、输送到成形的一体化 (纪莲清，熊守美，村上正幸，等压力对ADC2铝合金超低速 压铸件组织及力学性能的影响.铸造，2007,56(11)：1167) 流变压铸过程.与传统液态压铸相比，该流变压铸 [6 KangYI YangL Q SongR B et al Sudy on m icrostrucsue 成形工艺可获得具有典型半固态特征的压铸件 Processng re lationsip of a semisolid rheocasting A357 akm inum (2)随着内锥桶转速的提高，成形件内部初生 allo//10 th Intematioml ConferenceSmmi-Solid Processing of AL α-M品粒逐渐变得细小，形态趋于圆整.当转速为 bys and Composites Aachen 2008 141/143 157 700m前'时，成形件组织较好，平均晶粒尺寸约 7 Tzmas E Zavaliangs AA conpamtive charac terization of near equjaxed mic ostuctures as Produced by spray casting magne 45μ四形状因子约0.81：剪切温度较低时，铸件具 hydrodynam i casting and the stess induced melt activa ted 有较好的组织形态，初生α-M趋于圆整、分布均 Proces Mater SciEng A 2000 289 217 匀，但较低的剪切温度会使浆料的流动性变差，给随 【8Liu7 MaoW M Zhao ZD Smiso日A356 alky slumy pre 后的输送及压铸成形带来困难，因此选择合理的剪 pared by a new process ActaMetallsn 2009.45(4):507 切温度范围至关重要. (刘政，毛卫民.赵振释.新工艺制备半固态A356铝合金浆 (3)探讨了流变压铸成形过程中组织的形成机 料.金属学报，200945(4)：507) 【9 Xu Y K ang Y I,Wang ZH et al Preparti知of smmisold 理及凝固行为.合金熔体的凝固主要经历了一次凝 surny ofAZ1 DMg alloy SpecCast Nonferous A lk's 2004(5): 固和二次凝固两个阶段.一次凝固发生在半固态浆 12 料制备阶段：二次凝固主要包括浆料进入压射室、压 (徐跃.康永林，王朝辉，等.A☑91D镁合金半固态浆料制备的 铸模腔及充型过程中的凝固. 研究.特种铸造及有色合金，20045：12) [10 GuoH M YangX J LuoX Q Foma tion ofgmin refined and 参考文献 nan dendriticm icrostructure of an a minum alloy under angular II]KangY I,MaoW M Hu ZQ Theory and Technopgy of Smi oscill tin J Alks CoPd 2009 48 412 Solid Menl Fom ing Processing Beijng Sc ience Press 2004 【l】Gua RG Wen J↓W angSC etal Microstrucure behavor and me al fow durng conthuousy exiend ng extusion fom ng of (康永林，毛卫民，胡壮麒.金属材料半固态加工理论与技术. 北京：科学出版社.2004) sm isolid A2017 alby Tmns Nanferous Met Sc Chna 2006 【】F km ngs M C Behav ior of metal albys in the semisolid sme 16382 MemllTmnsB 1991 22B 269 [12]Guan R G MaW M Theory and Techmokgy of Smmi-SolidMeml 【3刭Ya YE Xing SM LuBC eta]Effectofcasting Pressureon Fom ing Beijing Memllgical mdusty Press 2005 porosity and mechanical propenies of ADC122 die castings (管仁国，马伟民.金属半固态成形理论与技术.北京：治金 Foundry207,56(11):1171 工业出版社，2005) (闫焉服熊守美，柳百成，等.铸造压力对AD02Z压铸件孔 13]TrivediB Morphokgkcalstabilio ofa sold partic le grov ing fiom 洞和力学性能的影响.铸造，200756(11片1171) a binary alby melt JCoystGowth 1980.48 93 [4 Lu ZY XuQY Lu BC Research on the nfuenceofdie cast [14 Fan Z Devebpment of the thea diecasting process formaenesam ing pocess on stnc tre and perfomance of magnesim alkey alks Ma werSciEng A 2005 413/414 72 Foundry200453(8):652 [15 Fan Z Lu G lidification bebavour ofAZ1D alky under n (刘志勇，许庆彦，柳百成.压铸工艺对镁合金组织性能影响 tensive forced convection in the RDC Process Acta Mater 2005 的研究.铸造，200453(8)：652) 534345 [5]JiLQ X iong SM MasayukiM etal Efects of casting pressure 16 Ji$Fan Z BevisM J Semi solid Prooessing of engineering al o microstuc ure and mechanical properties of super sow speed bys by a winscrew rhemmouling process Ma ter Sci Eng A die castings of ADC2 akm inum alloy Faud 2007.56(11): 2001,299210北 京 科 技 大 学 学 报 第 32卷 制开发的锥桶式流变成形机与卧式冷室压铸机相结 合, 实现了从半固态浆料制备、输送到成形的一体化 流变压铸过程.与传统液态压铸相比, 该流变压铸 成形工艺可获得具有典型半固态特征的压铸件 . 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