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用于耐溫動態(tài)熱密封組件的編織彈簧彈性性能分析及服役參數(shù)優(yōu)選
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天津大學(xué)材料科學(xué)與工程學(xué)院

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國家自然科學(xué)基金資助(項目號51772203)


Research on elastic properties of braided spring used in high temperature dynamic thermal barrier seals and service parameter optimization
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School of Material Science and Engineering,Tianjin University

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National Natural Science Foundation of China (51772203)

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    摘要:

    本文針對耐高溫動態(tài)熱密封組件中的常用元件彈性支架編織彈簧，研究了其壓縮量、裝配方式、熱暴露溫度等參數(shù)對其彈性性能的影響，并討論了編織彈簧高溫彈性失效的原因。研究結(jié)果表明，合金的氧化是編織彈簧高溫回彈率降低的主要原因，在低于800℃、壓縮量小于50%的服役條件下，編織彈簧的回彈率不小于95%，在航天熱密封領(lǐng)域有廣闊的應(yīng)用前景。

    Abstract:

    In this paper, the effects of the compression, assembly and heat exposure temperature on the elastic properties of the braided spring using as the elastic support of thermal barrier seals were investigated systematically, and the reason for elastic failure of the braided spring on high temperature was also discussed. The results show that the oxidation of alloy is the main reason for reduced resiliency of braided spring on high temperature, and the resiliency of braided spring is more than 95% when the compression is less than 50% below 800℃, which indating that the as-prepared braided spring may have broad application prospects in aerospace thermal barrier.

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薛云嘉,賈韜,王銳桐,邢海民,劉家臣.用于耐溫動態(tài)熱密封組件的編織彈簧彈性性能分析及服役參數(shù)優(yōu)選[J].稀有金屬材料與工程,2020,49(2):494~499.[Xue Yunjia, Jia tao, Wang Ruitong, Xing Haimin, Liu Jiachen. Research on elastic properties of braided spring used in high temperature dynamic thermal barrier seals and service parameter optimization[J]. Rare Metal Materials and Engineering,2020,49(2):494~499.]
DOI：10.12442/j. issn.1002-185X. QH20190042

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  • 收稿日期:2019-03-21
  • 最后修改日期:2019-05-09
  • 錄用日期:2019-10-23
  • 在線發(fā)布日期: 2020-03-12
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