強磁性材料の摩耗に及ぼす磁場の影響(第1報) : ニッケル・S45C組合せによる繰返し摩耗実験

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Experimental results are presented on the effects of .magnetic field around a pin, H, and magnetic moment of a magnetized rotor, M, on wear. Under the test condition with normal load, P, of 4.1 N and sliding velocity, V, of 30 m/min, the severe-mild wear transition point is found at about 50 A/m of H or about 6.5×10^<-3> Am^2 of M. Weaker H or M causes severe wear characteristics with a high wear rate, metallic luster of worn truck and large metallic debris. In case of stronger H or M, the wear type is transformed into mild wear characteristics, and the amount of wear is reduced remarkably because the rotor surface is covered with many fine particles of black oxide. Furthermore, , the value of H or M at the transition point becomes smaller in case of lighter P or slower V. The magnetic moment of rotor, M, amounts up to 6×10^<-3> Am^2 or more by plane grinding and even reaches 0.5-1×10^<-3> Am^2 by turning. Therefore, this paper points out that weartest specimen must be manufactured in absent of magnetization and experiments must be performed faint magnetic field as much as possible.
公益社団法人精密工学会の論文
1984-07-05