Iron compound sintered alloy for valve seat

Abstract

Abstract PURPOSE:To develop an Fe sintered alloy for valve seat which is excellent in heat resisting property, corrosion resistance and wear resistance by mixing an Fe alloy powder containing a hard carbide, and powder of Co, C, Fe-Mo, etc. by a specified percentage, in an Fe powder, and pressing, forming and sintering them. CONSTITUTION:In a powdery Fe, 0.3-2wt% carbon powder, 3-15wt% Co powder, 3-15wt% Fe-Mo whose Mo content is 60-70%, 5-40wt% one kind or two kinds or more among Cr, Mo, W, Co and Si containing a carbide whose hardness Hv is 800-1,880 for crystalizing or depositing one kind or two kinds or more of elements selected from a group of Cr, Mo, W and V after sintering, and 3-20wt% one kind or two kinds or more of an Fe alloy which contains 0.5-2wt% C, whose balance consists of Fe, and whose hardness after sintering becomes Hv300-900 are mixed, formed and sintered, and also 1-20wt% Pb is infiltrated as necessary.

Inventors

• 👤 Yukio Kadota
• 👤 門田　幸男
• 👤 Akira Manabe
• 👤 明 真鍋
• 👤 Tetsuya Suganuma
• 👤 菅沼　徹哉
• 👤 Naoki Omura
• 👤 大村　直己
• 👤 Toshio Morimoto
• 👤 森本　俊男

Bibliographic Details