最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級檢索
γ—TiAl增壓渦輪熔模鑄造過程數(shù)值模擬研究
DOI:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

TG292 TG249.5

基金項目:

國家自然科學重大基金項目(59990473)，國家重點基礎研究項目(G2000067208-3)，清華大學基礎研究基金資助


Research on Numerical Simulation of Investment Casting Process for Gamma Titanium Aluminide Turbocharger
Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計
    • |
  • 參考文獻
    • |
  • 相似文獻
    • |
  • 引證文獻
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    根據(jù)熔模型殼離心澆注的鑄造工藝特點，建立了γ－TiAl增壓渦輪凝固傳熱過程的數(shù)值模型，推導了離心壓力下γ－TiAl金屬間化合物的凝固收縮和補縮過程數(shù)學模型，模擬計算了γ－TiAl增壓渦輪鑄件的溫度場和收縮缺陷，結果表明，模型能可靠計算γ－TiAl增壓渦輪鑄件凝固過程的溫度分布和準確預測鑄件的收縮缺陷，數(shù)值模擬結果與實驗結果吻合良好，數(shù)值模擬結果證實了前期工作所提出的進一步減少及消除收縮缺陷的優(yōu)化工藝措施的合理性。

    Abstract:

    Considering the characteristics of centrifugal casting technology with investment shell, the mathematical model of solidification process of gamma titanium aluminide turbochargers was established, and the model for shrinking and feeding was deduced under the condition of centrifugal pressure. Then, temperature field and shrinkage defects of gamma titanium alunimide turbocharger with different technologies were simulated. The results showed that the temperature distribution could be calculated and the shrinkage defects could be predicted with the model, and the simulation results coincided with the experimental results quite well. It is indicated that the optimum process to remove shrinkage defects presented in the preceding paper is rational.

    參考文獻
    相似文獻
    引證文獻
引用本文

梁作儉 李俊濤 等.γ—TiAl增壓渦輪熔模鑄造過程數(shù)值模擬研究[J].稀有金屬材料與工程,2003,(3):164~169.[Liang Zuojian, Xu Qingyan, Li Juntao, Li Shiqiong, Zhang Ji, Liu Baicheng, Zhong Zengyong. Research on Numerical Simulation of Investment Casting Process for Gamma Titanium Aluminide Turbocharger[J]. Rare Metal Materials and Engineering,2003,(3):164~169.]
DOI：[doi]

復制
文章指標
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:
  • 最后修改日期:2001-12-03
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: