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机械零件用含钒压铸铝合金的性能优化

吴刚 刘之强

吴刚, 刘之强. 机械零件用含钒压铸铝合金的性能优化[J]. 钢铁钒钛, 2021, 42(3): 193-198. doi: 10.7513/j.issn.1004-7638.2021.03.029
引用本文: 吴刚, 刘之强. 机械零件用含钒压铸铝合金的性能优化[J]. 钢铁钒钛, 2021, 42(3): 193-198. doi: 10.7513/j.issn.1004-7638.2021.03.029
Wu Gang, Liu Zhiqiang. Performance optimization of die casting aluminum alloy containing vanadium for mechanical parts[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(3): 193-198. doi: 10.7513/j.issn.1004-7638.2021.03.029
Citation: Wu Gang, Liu Zhiqiang. Performance optimization of die casting aluminum alloy containing vanadium for mechanical parts[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(3): 193-198. doi: 10.7513/j.issn.1004-7638.2021.03.029

机械零件用含钒压铸铝合金的性能优化

doi: 10.7513/j.issn.1004-7638.2021.03.029
基金项目: 辽宁省教育厅科研项目课题,项目编号:w2015263
详细信息
    作者简介:

    吴刚(1969—),男,汉族,辽宁辽阳人,工程学士,副教授,主要研究方向:数控技术、机械设备工艺技术等。E-mail: wangmoubei2997814@163.com。

  • 中图分类号: TF821,TG27

Performance optimization of die casting aluminum alloy containing vanadium for mechanical parts

  • 摘要: 采用不同压射比压和压射速度进行了机械零件用含钒压铸铝合金Al-10Si-2.5Cu-0.3V的压铸试验,并进行了合金力学性能和耐磨损性能的测试与分析。结果表明:随压射比压由650 MPa增大到750 MPa、压射速度从250 mm/s加快到450 mm/s时,合金的力学性能和耐磨损性能均先提高后下降。合金的压射比压优选725 MPa、压射速度优选350 mm/s。与压射比压650 MPa相比,当压射比压增加到725 MPa时合金的抗拉强度增大18 MPa、断后伸长率减小0.6%、磨损体积减小8×10−3 mm3。与压射速度450 mm/s相比,当压射速度为350 mm/s时合金的抗拉强度增大20 MPa、断后伸长率减小0.7%、磨损体积减小了10×10−3 mm3
  • 图  1  拉伸试样尺寸

    Figure  1.  Dimensions of tensile specimens

    图  2  不同压射比压时试样的力学性能测试结果

    Figure  2.  Tensile test results of the specimens at different injection pressures

    图  3  试样拉伸断口形貌

    Figure  3.  Tensile fracture morphology of the specimens

    图  4  不同压射速度时试样的力学性能测试结果

    Figure  4.  Tensile test results of the specimens at different injection speeds

    图  5  不同压射比压时试样的耐磨损性能测试结果

    Figure  5.  Wear test results of the specimens at different injection pressures

    图  6  不同压射速度时试样的耐磨损性能测试结果

    Figure  6.  Wear test results of the specimens at different injection speeds

    表  1  合金试样化学成分

    Table  1.   Chemical compositions of the alloy specimens %

    试样SiCuVMgFeMnNiZnAl
    1 10.124 2.489 0.291 <0.2 <0.6 <0.3 <0.3 <0.6 Bal.
    2 10.126 2.486 0.293 <0.2 <0.6 <0.3 <0.3 <0.6 Bal.
    3 10.123 2.487 0.292 <0.2 <0.6 <0.3 <0.3 <0.6 Bal.
    4 10.122 2.485 0.294 <0.2 <0.6 <0.3 <0.3 <0.6 Bal.
    5 10.125 2.489 0.291 <0.2 <0.6 <0.3 <0.3 <0.6 Bal.
    6 10.124 2.486 0.293 <0.2 <0.6 <0.3 <0.3 <0.6 Bal.
    7 10.127 2.486 0.292 <0.2 <0.6 <0.3 <0.3 <0.6 Bal.
    8 10.125 2.488 0.294 <0.2 <0.6 <0.3 <0.3 <0.6 Bal.
    9 10.123 2.485 0.292 <0.2 <0.6 <0.3 <0.3 <0.6 Bal.
    10(对比试样) 10.124 2.487 0 <0.2 <0.6 <0.3 <0.3 <0.6 Bal.
    下载: 导出CSV

    表  2  试样压铸工艺参数

    Table  2.   Die casting process parameters of the specimens

    试样编号压射比压/
    MPa
    压射速度/
    (mm·s−1
    快压速度/
    (m·s−1
    浇注温度/
    1 650 350 8 635
    2 675 350 8 635
    3 700 350 8 635
    4 725 350 8 635
    5 750 350 8 635
    6 725 250 8 635
    7 725 300 8 635
    8 725 400 8 635
    9 725 450 8 635
    10(对比试样) 725 350 8 635
    下载: 导出CSV

    表  3  添加钒对合金性能的影响

    Table  3.   The result show the effect of vanadium addition on mechanical properties of alloy

    试样编号抗拉强度/MPa断后伸长率/%磨损体积/mm3
    42561.513×10−3
    10(对比试样)235124×10−3
    下载: 导出CSV
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出版历程
  • 收稿日期:  2020-01-22
  • 刊出日期:  2021-06-10

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