Research Progress in Semi-solid Alloy in Rheocasting Technology

Mao Weimin Bai Yuelong

Views : 0 下载量: 591 CSCD: 37

Export
Share
Collection
Album

Research Progress in Semi-solid Alloy in Rheocasting Technology
Issue 2, Pages: 4-8(2004)
Published： 2004 ，
DOI：

扫描看全文

[1]毛卫民,,,,,,,,,白月龙,,,,,,,,,陈军.半固态合金流变铸造的研究进展[J].特种铸造及有色合金,2004(02):4-8+1.

Mao Weimin Bai Yuelong. Research Progress in Semi-solid Alloy in Rheocasting Technology. [J]. Special Casting & Nonferrous Alloys (2):4-8(2004)
[1]毛卫民,,,,,,,,,白月龙,,,,,,,,,陈军.半固态合金流变铸造的研究进展[J].特种铸造及有色合金,2004(02):4-8+1. DOI：

Mao Weimin Bai Yuelong. Research Progress in Semi-solid Alloy in Rheocasting Technology. [J]. Special Casting & Nonferrous Alloys (2):4-8(2004) DOI：

摘要

总结了 3 0余年来半固态合金流变铸造的研究和应用现状。介绍了传统机械搅拌式流变铸造工艺

由于其所制备的半固态合金浆料保存、输送麻烦

至今没有进入实际应用 ;评述了射室制备浆料式流变铸造工艺技术

其生产的压铸件经T6处理

力学性能与挤压铸件相当

但伸长率提高很多 ;介绍单、双螺旋流变射铸工艺

其特点是利用液态合金原料生产成本低

铸件气孔率低

但其所需设备和生产工艺还处在优化阶段 ;重点介绍了低过热度倾斜板浇注式流变铸造、低过热度浇注和弱机械搅拌式流变铸造的工艺特点和核心思想 ;分析了半固态合金流变铸造的发展前景

Abstract

The research and application status of semi-solid al lo y rheocasting in about latest 30 years were surveyed. So far due to the storage a nd transport for prepared semi-solid slurry with difficuties

the conventional mechnical stirring technology cann’t still be put into industrial practice. The slurry preparation in injection chamber was introduced. Tensile strength of ca s tings treated by T6 in rheocasting was equivalent to that of castings in squeezi ng casting while the elongation was much higher. Although the single or double s cre w rheocasting injection was characterized by short process

low production cost and low gas porosity

the equipment and technology still need to be optimized. T he technological features and essential principle of tilting plate pouring with low superheated alloy as well as low supreheated alloy with slightly mechanical stirring in semi-solid rheocasting were emphatically discribed combined with the prospec t analysis.