FUCHS LUBRITECH GMBH TRAM-SILENCE / 1 Noise reduction in Railway Traffics

FUCHS LUBRITECH GMBH TRAM-SILENCE / 2 Noise reduction in Railway Traffics Problem:  „Wheel squealing“ when travelling through curves  high-frequent, disturbing noises  Noise problem for the neighborhood  high costs for noise preventing measures

FUCHS LUBRITECH GMBH TRAM-SILENCE / 3 Reasons:  different distances for outer and inner wheel in curves  differential slip  torsion of the axles  Stick-slip-Effects, normally on the low rail

FUCHS LUBRITECH GMBH TRAM-SILENCE / 4 Remedy:  steered wheel sets: better adaptation of the axles to the curve radius  Disadvantage: high costs, reduces only wheel flange wear

FUCHS LUBRITECH GMBH TRAM-SILENCE / 5 Remedy:  Rail Head Treatment with intermediate agents TRAM-SILENCE TRAM-SILENCE 00

FUCHS LUBRITECH GMBH TRAM-SILENCE / 6 Remedy:  TRAM-SILENCE is applied manually onto the rail head  Consumption as low as possible  Application on the low rail is normally sufficient  Beginning some meters before the curve starts  End normally some meters behind the starting point of the curve  Bidirectional traffic: Application from the center of the curve in both directions

FUCHS LUBRITECH GMBH TRAM-SILENCE / 7 Remedy:  Recently, we had a lot of inquiries for a product which can be applied automatically  This can be done with TRAM-SILENCE at „normal“ temperatures, e.g. with REBS-lubricators  TRAM-SILENCE is not sprayable at low temperaturs  Therefore: Modification TRAM-SILENCE 00

FUCHS LUBRITECH GMBH TRAM-SILENCE / 8 Composition:TRAM-SILENCETRAM-SILENCE 00 Base oil:nativesynthetic Thickener:Ca-Seifeinorganic Solids: Metal powder, Graphite Properties: First results of spray tests with TRAM-SILENCE 00: Sprayability down to -20°C possible BEKA Fluilub Vogel SP 9 REBS (-15°C)

FUCHS LUBRITECH GMBH TRAM-SILENCE / 9 Customers:  several local tramway operators in Germany Jena, Frankfurt/Oder, Leipzig, Gera, Dresden etc.  Deutsche Bahn AG (pre-trials)  Dutch Railway NS (Practical trial)  Spanish Railway RENFE and some local operators  several Australian operators  Several swiss operators

FUCHS LUBRITECH GMBH TRAM-SILENCE / 10 Customers:

FUCHS LUBRITECH GMBH TRAM-SILENCE / 11 Consumption rates and results  Consumption rate is dependent from local conditions e.g. Curve radius, Rail- and Wheel condition, Weather etc.  Slogan: as much as necessary, as few as possible  Braking, traction and signalling must not be affected  Friction coefficient with TRAM-SILENCE is not worse than on wet rails  Rough estimation of consumption: ca. 0,1 g/m on the low rail

FUCHS LUBRITECH GMBH TRAM-SILENCE / 12 Future aspects  Demand for these products will increase because the problem awareness is increasing  Application changes over more and more to automatic lubricators  We shoul actively discuss these problems with our customers. Their problems are waiting for solutions.  We should not talk about Rail Head Lubrication, but about Rail Head Treatment.  There is a huge potential for these products.

FUCHS LUBRITECH GMBH TRAM-SILENCE / 13

FUCHS LUBRITECH GMBH TRAM-SILENCE / 14 Noise reduction in Railway Traffics