镁合金挤压铸造工艺及模具的设计

肖泽辉; 罗吉荣; 吴树森; 李东南

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镁合金挤压铸造工艺及模具的设计
Design of Squeeze Casting Process and Die Structure for Mg Alloy
2003年第6期页码：39-40
纸质出版日期： 2003 ，
DOI：

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[1]肖泽辉,,,,,,,,,,罗吉荣,,,,,,,,,,吴树森,,,,,,,,,,李东南.镁合金挤压铸造工艺及模具的设计[J].特种铸造及有色合金,2003(06):39-40+69.

Xiao Zehui Luo Jirong Wu Shusen Li Dongnan. Design of Squeeze Casting Process and Die Structure for Mg Alloy[J]. Special Casting & Nonferrous Alloys, 2003,(6):39-40.
[1]肖泽辉,,,,,,,,,,罗吉荣,,,,,,,,,,吴树森,,,,,,,,,,李东南.镁合金挤压铸造工艺及模具的设计[J].特种铸造及有色合金,2003(06):39-40+69. DOI：

Xiao Zehui Luo Jirong Wu Shusen Li Dongnan. Design of Squeeze Casting Process and Die Structure for Mg Alloy[J]. Special Casting & Nonferrous Alloys, 2003,(6):39-40. DOI：

摘要

研究了镁合金间接挤压铸造工艺及模具。采用全封闭式气压定量输送装置

应用N2 或Ar气排除挤压模型腔中的空气

有效避免镁合金液在转运、浇注及挤压成形时的氧化和阻燃 ;采用挤压充填速度为 2 .0～ 2 .5m/s

挤压力为 5 0 0kN

生产出组织致密的镁合金挤压零件 ;模具的挤压活塞和定量室浇口套设计独立的加热装置

加热温度为 45 0～ 5 0 0℃

挤压活塞和定量室浇口套两者之间单边配合间隙取 0 .0 2～ 0 .0 5mm。

Abstract

The indirect squeezing casting process and the die structure for the Mg alloy were investigated. With full sealed quantitative pneumatic transporting system and air removal from die cavity with N 2 or Ar gas. It is effective to prevent Mg alloy from oxidation and ignition during transpotation

pouring and forming. In the case of filling rate 2.0～2.5 m/s and squeezing force 500 kN

the Mg alloy castings with sound structure was produced. Specially designed independent heating device was used for heating the plunger and the sleeve in the quantitative chamber up to 450～500 ℃. The single clearance between plunger and the sleeve equaled 0.02～ 0.05 mm.