A Study of SHS-Pressing Process of Ti-C-Ni-Mo System
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摘要: 本工作基于對自蔓燃過程的分析,提出了自蔓燃-加壓致密化過程中的可壓制溫度下限Tp和與之相應的可壓制時間上限tp的概念,并建立了溫度-時間-狀態圖。tp與燃燒持續時間tc之差為該工藝的控制參量-壓制延遲時間t的上限值。據此時Ti-C-Ni-Mo系進行了研究.確定了最佳工藝參數,獲得了近于完全致密的TiC-Ni-Mo合金。
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關鍵詞:
- 硬質合金 /
- 致密化 /
- 壓制/自蔓燃 /
- TiC-Ni-Mo合金
Abstract: Jn this work SHS-pressing process is studied. Concepts of compactable temperature minimum (Tp) and compactable time maximum (tp) are defined. A temperature-time-state diagram (TTSD) is presented. The upper limit of pressing time delay after combustion, τ, which is a control parameter of the SHS-pressing process, can be determined by tp-tc, where tc is combustion time. On the basis of the analysis, nearly full dense TiC-Ni-Mo alloy is synthesized.-
Key words:
- cemented carbides /
- densifying /
- pressing/SHS /
- TiC-Ni-Mo alloy
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