型腔真空度及热处理对AlSiMgMn压铸件性能的影响

张百在; 刘学强; 万里; 汪学阳; 黄志垣; 徐飞跃

doi:10.15980/j.tzzz.2016.07.001

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型腔真空度及热处理对AlSiMgMn压铸件性能的影响
Effects of Cavity Vacuum and Heat Treatment on Mechanical Properties of AlSiMgMn Die Castings
2016年36卷第7期页码：673-676
纸质出版日期： 2016 ，
DOI： 10.15980/j.tzzz.2016.07.001

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[1]张百在,刘学强,万里,汪学阳,黄志垣,徐飞跃.型腔真空度及热处理对AlSiMgMn压铸件性能的影响[J].特种铸造及有色合金,2016,36(07):673-676.

Zhang Baizai, Liu Xueqiang, Wan Li, et al. Effects of Cavity Vacuum and Heat Treatment on Mechanical Properties of AlSiMgMn Die Castings[J]. Special Casting & Nonferrous Alloys, 2016,36(7):673-676.
[1]张百在,刘学强,万里,汪学阳,黄志垣,徐飞跃.型腔真空度及热处理对AlSiMgMn压铸件性能的影响[J].特种铸造及有色合金,2016,36(07):673-676. DOI： 10.15980/j.tzzz.2016.07.001.

Zhang Baizai, Liu Xueqiang, Wan Li, et al. Effects of Cavity Vacuum and Heat Treatment on Mechanical Properties of AlSiMgMn Die Castings[J]. Special Casting & Nonferrous Alloys, 2016,36(7):673-676. DOI： 10.15980/j.tzzz.2016.07.001.

摘要

研究了不同真空度下AlSiMgMn压铸件在铸态、T1、T5和T6热处理后的力学性能。结果表明

铸态下

高真空（真空度为95

7kPa时）铸件的伸长率是普通压铸件的2.3倍;T1处理后

高真空压铸件的屈服强度比低真空压铸件（真空度为65

0kPa时）的屈服强度提高了64.2%;T5处理后

高真空铸件的伸长率可达到8.4%

T6处理后高真空铸件屈服强度和伸长率分别达到了339.8 MPa和6.7%。

Abstract

The mechanical properties of the die castings is greatly related with the cavity vacuum.The performances of the die castings prepared under different vacuums which was subject to T1

T5 and T6heat treatment were investigated.The results indicate that the elongation of the castings fabricated by high vacuum die casting（cavity vacuum of 91

4kPa）is 2.3times of ones fabricated by high pressure die casting;after T1 treatment

compared with that of ones fabricated by low vacuum die casting（cavity vacuum of 65

0kPa）

yield strength of the high vacuum die casting specimen is increased by 64.2%

and the elongation of the specimen produced by high vacuum die casting（HVDC）reaches 8.4% with T5 treatment.After T6 treatment

the yield strength and elongation of the HVDC castings reach 339.8MPa and 6.7%

respectively.