集成固相焊接方法在液冷板制造中的应用
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摘要
为了提高6063铝合金翅片式大宽度流道液冷板的散热性能和焊接可靠性,满足雷达系统功放组件高集成、大型化带来的热耗快速增加的散热需求,文中提出采用2种固相焊接方法(扩散焊和搅拌摩擦焊)集成完成液冷板的制造方案,明确了集成焊接方法的工艺性结构设计要求,验证了工艺制造路径,仿真分析了集成焊接方法对结构刚性的影响。结果表明,集成焊接方法能够实现液冷板的高质量焊接,焊后结构刚性得到大幅提高。某功放组件采用集成固相焊接方法成功成型了液冷流道,其焊接质量满足设计要求,在1.5 MPa服役压力下的流道表面变形量仅为0.015 mm。
The integrated welding method(including the diffusion welding and friction stir welding) is proposed in this paper to improve the heat dissipation performance and welding reliability of 6063 aluminum alloy channel cooling plate with large width channel and fins and meet the heat dissipation requirement of highly integrated large-scale power amplifier module of the radar system.Technical structure design requirements of the integrated welding method are determined and the process path is verified.And then the effect of integrated welding method on the structural rigidity is analyzed by finite element analysis.The results show that high quality welding of the liquid cooling plate can be realized and the structural rigidity is greatly improved by integrated welding method.The liquid cooling channel of a power amplifier module is successfully formed by integrated solid phase welding method.Its welding quality meets the design requirements.Deformation of the channel surface is only 0.015 mm under the service pressure of 1.5 MPa.
The integrated welding method(including the diffusion welding and friction stir welding) is proposed in this paper to improve the heat dissipation performance and welding reliability of 6063 aluminum alloy channel cooling plate with large width channel and fins and meet the heat dissipation requirement of highly integrated large-scale power amplifier module of the radar system.Technical structure design requirements of the integrated welding method are determined and the process path is verified.And then the effect of integrated welding method on the structural rigidity is analyzed by finite element analysis.The results show that high quality welding of the liquid cooling plate can be realized and the structural rigidity is greatly improved by integrated welding method.The liquid cooling channel of a power amplifier module is successfully formed by integrated solid phase welding method.Its welding quality meets the design requirements.Deformation of the channel surface is only 0.015 mm under the service pressure of 1.5 MPa.
引文
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[2]翁夏.微/小通道冷板在某型相控阵天线上的对比分析[J].电子机械工程,2014,30(5):16-17.
[3]许业林,江海东,雷党刚.搅拌摩擦焊在液冷流道制造中的应用[J].电子工艺技术,2012(5):285-288.
[4]王萌,徐晓婷.高密度密封电子设备热设计与结构优化[J].电子工艺技术,2006,27(6):339-342.
[5]葛洋,姜未汀.微通道换热器的研究及应用现状[J].化工进展,2016,35(1):10-15.
[6]赵仁祥.高效散热微通道液冷冷板焊接技术及成形工艺研究[J].电子机械工程,2008,24(4):33-36.