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Maglev trains use electric boots by copper slider Materials

:379-384 [8] Jia Yin, Zhou Lian, Chen Tan. Semi-metallic friction materials and gray cast iron sliding friction characteristics of surface layer analysis. Tribology, 1995,15 (2) :171-176 [9] JangH, KoK, KimSJ. Theeffeetofmetalfibersonthefrictionperformanceofautomotivebrakefrictionmaterials. Wear ,2004,[link widoczny dla zalogowanych],256:406-414 [10] VukoloLA. Investigationofbrakeblocksmadeofupdatecompositefrictionalmaterials. FrictionandWear, 1995,16 (1) :78-82 [11] KazuhiroDoi, TakahiroMibe, HiromiehiMatsui, eta1. Brakejudderreductiontechnologybrakedesignteehniqueincludingfrictionmaterialformulation. JSAEReview, 2000 ,21:497-502 [12] FriedriehK. EffectsofsteeleounterfaeeroughnessandtemperatureonthefrictionandwearofPEEKcompositesunderdryslidingcondition. WEAR, 1996 (148) :235-238 (339 on the next page) 3 Conclusions 1) Cu-Sn. Pb-Cr-C by the electric slide shoe materials have excellent properties, the tensile strength of 138.1MPa,[link widoczny dla zalogowanych], the whole drawing process was not observed in the yield process, the fracture found in the local area dimple with Some tough off characteristics. 2) Cu. Sn-Pb-Cr-C by the electric slide shoe friction coefficient is 0.38, much better than the frictional properties of pure Cu. SEM of worn surface showed that the wear to abrasive wear. 3) Cu. Sn-Pb-Cr-C by the electrical conductivity of material boots slider up to 74% IACS,[link widoczny dla zalogowanych], much higher than the pure Al. Microstructure can be found from the sample matrix material in the Cu form a continuous distribution network, adding the graphite evenly distributed within the gap in the network, such a structure is conducive to electrical conductivity performance of the play. References [1] Yong-block countries, Zhang Jun, HU Jun accordingly. Electrical contact with the electrical contact material (a). Electrotechnics ,2002,2:44-46l2] TuJP, RongW, GuoSY, eta1. DryslidingwearbehaviorofinsituCu / Tithnanoeompositesagainstmediumcarbonstee1. Wear, 2003,255:832 ~ 835 [3] SkaiS, SuzukiHG, MiharaK. EffectofSnadditiononthemechanicalandelectricalpropertiesofCu a 15% Crinsit7composites. MaterialsTransactions, 2003,44 (2) :232-238 [4] Huang Peiyun. Powder Metallurgy Principles (2nd edition). Beijing: Metallurgical Industry Press, 1997 [5] Chen Guo Fa Li Yun cut. Principles and metallurgical phase diagram phase diagram. Beijing: Metallurgical Industry Press. 2002 [6] Gao Qiang, Yu Wu Ying,[link widoczny dla zalogowanych], Zhai Ning, et al . Conductivity of copper graphite material. Mechanical Engineering Materials, 2002,26 (9) :34-36 [7] ZhanYZ, ZhangGD, WuYY. Effectofsurfacemetallizationofgraphiteonthetribologicalpropertiesofcopperhybridcomposites. ScandinavianJournalofMetallurgy,[link widoczny dla zalogowanych], 2004,33 (2): 8O84
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