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
鑄造Ti75合金可旋性研究
DOI:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

國家科技支撐計劃(2007BAE07B01)


Study on Spinning Feasibility of Ti75 Cast Alloys
Author:
Affiliation:

Fund Project:

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

    對應(yīng)用ZHN-100型真空自耗凝殼爐鑄造的Ti75(Ti-3Al-2Mo-2Zr)合金管坯可旋壓性能進(jìn)行研究，討論旋壓溫度(T)、旋輪進(jìn)給率(f)、道次減薄率(ψtn)等參數(shù)對Ti75合金管坯旋壓工藝性能的影響以及不同減薄率情況下鑄態(tài)組織與性能變化情況。結(jié)果表明：鑄造Ti75合金管坯采用多道次加熱反旋時首道次旋壓溫度在600~800 ℃為宜，后續(xù)道次應(yīng)降溫旋壓，以保證成品性能及精度；旋輪進(jìn)給率以0.42~0.67 mm/r為宜，進(jìn)給率較大有利于保證旋壓件內(nèi)腔貼模，其值較小有利于提高產(chǎn)品表面質(zhì)量；首道次減薄率不大于30%，以保證旋壓的順利進(jìn)行；鑄造Ti75合金管坯最大壁減薄率ψt可達(dá)80%以上，證明其具有優(yōu)異的可旋性能

    Abstract:

    Power spinning feasibility of the Ti75 (Ti-3Al-2Mo-2Zr) alloy tube cast by a skull furnace ZHN-100 was studied; effects of parameters such as the spinning temperature (T), spin wheel feed rate (f) and pass thinning rate (ψtn) on the spinning process performance of the alloy tube were discussed and the changes of cast microstructure and properties under different thinning rates were also researched. The results show that the appropriate first-pass spinning temperature is 600-800 oC for the cast Ti75 alloy tube when the multi-pass heating backward spinning was applied; while the spinning temperature of the follow-up passes should be lowered gradually in order to ensure the product performance and accuracy. The spin wheel feed rate of 0.42-0.67 mm/r is proper, for which the higher value can ensure the easy-to-punch, and the smaller one is in favor of the surface quality increase of the product. The first-pass thinning rate should not be more than 30%, in order to ensure the smooth progress of spinning. The maximum thinning rate ψt of wall thickness for the cast Ti75 alloy tube is up to 80%, confirming its excellent spinning properties

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

蘇航標(biāo),曾衛(wèi)東,趙永慶,楊英麗.鑄造Ti75合金可旋性研究[J].稀有金屬材料與工程,2010,39(6):1103~1106.[Su Hangbiao, Zeng Weidong, Zhao Yongqing, Yang Yingli. Study on Spinning Feasibility of Ti75 Cast Alloys[J]. Rare Metal Materials and Engineering,2010,39(6):1103~1106.]
DOI：[doi]

復(fù)制
文章指標(biāo)
  • 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:2009-06-17
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期: