PURPOSE: To provide a titled alloy which has the resistance to wear equivalent to the resistance to wear of copper contg. Ti, Cr, etc. and has good fluidity of the molten metal by incorporating prescribed amt. of Zn, Al, Mn, Fe and Si into copper and specifying the content and component ratio of the Fe-Mn-Si ternary compd.
CONSTITUTION: A copper alloy contains, by weight %, 10W30 Zn, 5W10 Al, 0.5W5 Mn, 0.5W5 Fe, 1W6 Si and if necessary, 0.05W2 Sn and contains 1W12 Fe-Mn-Si ternary compd., in which the weight ratios of Fe/Si and Mn-Si of the compd. are respectively 0.3W14. The copper alloy consists of the balance Cu. Such copper alloy has the resistance to wear equivalent to or better than the resistance to wear of the conventional copper alloy contg. Ti, Cr, Co, Zr, V, etc. in Cu and has good fluidity of the molten metal and excellent suitability to casting.
KAMIBAYASHI TAKESHI
OOKUBO MITSUHIRO
