This paperintroduces a new reinforced installation for multi-directional upsetting, it provides a strengthenedhorizontal upsetting force extremely larger than that force obtained by conventional RR forging pro-cess or TR forging process.

 
  • 本文設計的新型增力式多向鈕鍛裝置,在鍛造接近結束時(shí),可以增大水平鍬粗力,其增力效果超過(guò)傳統的rr鍛造法及TR鍛造法。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan