采用新型流变成形技术,研究了压射比压与压射速度对半固态AlSi7Mg铝合金流变压铸过程的影响.结果表明:将低过热度浇注与短时弱电磁搅拌相结合,能制备出均匀的半固态AlSi7Mg铝合金浆料,适合流变压铸,流变成型参数范围较宽,有利于提高压铸件的质量.试片的壁厚、压射比压和压射速度都对半固态AlSi7Mg合金浆料的充填性有较大的影响.对于10 mm的试片,压射比压应≥15 MPa,压射速度应≥0.384 m/s;而对于5 mm的试片,压射比压应≥20 MPa,压射速度应≥1.152 m/s.
参考文献
[1] | M.C.Flemings,Metall.Trans.,22A(5),957(1991) |
[2] | K.P.Young,R.Fitze,Semi-solid metal cast alumnium automotive components,in Proc of the 3rd Int.Conf.of Semi-Solid Processing of Alloys and Composites,edited by Manabu Kiuchi (Japan,Institute of Industrial Science and University of Tokyo,1994) p.155 |
[3] | S.P.Midson,The commercial status of semi-solid casting in the USA,in Proc.of the 6th Int.Conf.on SemiSolid Processing of Alloys and Composites,edited by G.L.Chiarmetta and M.Rosso,(Italy,Politecnico DI Torino,2000) p.251 |
[4] | R.Shibata,T.Kaneuchi,T.Soda,Y.Iizuka,New semiliquid metal casting process,in Proc of the 4th Int.Conf.on Semi-Solid Processing of Alloys and Composites,edited by D.H.Kirkwood and P.Kapranos (England,,University of Sheffield,1996) p.296 |
[5] | T.Kaneuchi,R.Shibata,M.Ozawa,Development of New semi-solid metal casting process for automotive suspension parts,in Proc.of the 7th Int.Conf.on Semi-Solid Processing of Alloys and Composites,edited by Y.Tsutsui,M.Kiuchi and K.Ichikawa (Japan,National Institute of Advanced Industrial Science and Technology,Japan Society for Technology of Plasticity,2002) p.145 |
[6] | N.Wang,Hs.Peng,K.K.Wang,Assessment of porosity level in rheomolded parts,in Proc of the 4th Int.Conf.on Semi-Solid Processing of Alloys and Composites,edited by D.H.Kirkwood and P.Kapranos (England,University of Sheffield,1996) p.342 |
[7] | N.Wang,K.K.Wang,A study of rheomolded parts of No2 die casting alloy at semi-solid state,in Proc.of the 5th Int.Conf.on Semi-Solid Processing of Alloys and Composites,edited by C.Dardano,M.Francisco and J.Proud (Colorado,Colorado School of Mines,1998) p.521 |
[8] | S.Y.Lin,S.H.Lin,C.S.Lee,Development on rheomolding and electromagnetic stirring technology,in Proc.of the 7th Int.Conf.on Semi-Solid Processing of Alloys and Composites,edited by Y.Tsutsui,M.Kiuchi and K.Ichikawa (Japan,National Institute of Advanced Industrial Science and Technology,Japan Society for Technology of Plasticity,2002) p.545 |
[9] | Z.Fan,S.Ji,M.J.Bevis,Twin-screw rheomolding-A new semi-solid processing technology,in Proc.of the 6th Int.Conf.on Semi-Solid Processing of Alloys and Composites,edited by G.L.Chiarmetta and M.Rosso,(Italy,Politecnico DI Torino,2000) p.61 |
[10] | S.Ji,Z.Fan,M.J.Bevis,Mater.Sci.& Eng.,299A,210(2001) |
[11] | R.Potzinger,H.Kaufmann,P.J.Uggowitzer,Magnesium new rheocasting-a novel approach to high quality magnesium-castings,in Proc.of the 6th Int.Conf.on Semi-Solid Processing of Alloys and Composites,edited by G.L.Chiarmetta and M.Rosso,(Italy,Politecnico DI Torino,2000) p.85 |
[12] | H.Kaufmann,A.Mundi,P.J.Uggowitzer,N.Ishibashi,Die Casting Engineer,46(4),16(2002) |
[13] | J.A.Yurko,R.A.Martinez,M.C.Flemings,Development of the semi-solid rheocasting (SSR) process,in Proc.of the 7th Int.Conf.on Semi-Solid Processing of Alloys and Composites,edited by Y.Tsutsui,M.Kiuchi and K.Ichikawa (Japan,National Institute of Advanced Industrial Science and Technology,Japan Society for Technology of Plasticity,2002) p.659 |
[14] | J.Yueko,Idra Prince.Die Casting Engineer,46(4),20(2002) |
[15] | MAO Weimin,ZHAO Aimin,CUI Chenglin,Method and equipment for preparation of semi-solid metals slurry or continuous casting billet with spherical primary grains,China Patent,00109540.4(2000)(毛卫民,赵爱民,崔成林,球状初晶半固态金属浆料或连铸坯料的制备方法和装置,中国专利,00109540.4(2000)) |
[16] | LIU Zheng,MAO Weimin,ZHAO Zhengduo,Chinese Journal of Materials Research,20(2),125(2006)(刘政,毛卫民,赵振铎,材料研究学报,20(2),125(2006)) |
[17] | LIU Guojun,ZHANG Kui,ZHANG Yongzhong,FAN Jianzhong,XU Jun,SHI Likai,Acta Metallurgica Sinica,35(2),141(1999)(刘国钧,张奎,张永忠,樊建中,徐俊,石力开,金属学报,35(2),141(1999)) |
[18] | MAO Weimin,ZHAO Aimin,CUI Chenglin,SUN Feng,ZHENG Chengli,ZHONG Xueyou,Acta Metallurgica Sinica,36(5),539(2000)(毛卫民,赵爱民,崔成林,孙峰,郑承利,钟雪友,金属学报,36(5),539(2000)) |
[19] | LIU Dan,CUI Jianzhong,XIA Kenong,Journal of Northeastern University Natural Science,20(2),173(1999)(刘丹,崔建忠,夏可农,东北大学学报自然科学版,20(2),173(1999)) |
[20] | MAO Weimin,ZHAO Aimin,Method and equipment for rheoforming using semi-solid metals or alloys slurry with spherical primary grains,China Patent,02104349.3 (2002)(毛卫民,赵爱民,球状初晶半固态金属浆料或合金浆料直接成形方法及装置,中国专利,02104349.3(2002)) |
[21] | MAO Weimin,CUI Chenglin,ZHAO Aimin,YANG Jilian,ZHONG Xueyou,J.Mater.Sci.Technol.,17(6),615(2001) |
[22] | MAO Weimin,YANG Jilian,ZHAO Aimin,CUI Chenglin,ZHONG Xueyou,J.of University of Sci.& Tech.Beijing,23(1),38(2001)(毛卫民,杨继莲,赵爱民,崔成林,钟雪友,北京科技大学学报,23(1),38(2001)) |
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