which heat treatment style used in gear train of high speed rails 1

[peuray]

hello every one?

i have a question

which heat treatment style(surface hardening)used in gear train of high speed rails transmission system(like TGV\ICE\shinkansen etc.)

do they use induction hardening or carburization & quenching? even nitriding ?

SAME the question to gear train of wind-powerd electricity generation used in Europe and USA?

THX U EVERY

 

[almpunk]

Hi peuray
It depends of the material you are using, and depends of the grade of surface hardening you want to obtain. With ion nitriding according to AMS 2759/8 you can obtain a surface hardness of 50-52 HRC with difussion zone up to 0.89mm of deep. Don´t forget that all heat treatable steels to be nitrided shall be hardened and tempered prior to nitriding.

 

[TVP]

Search the archives of the following magazines:


Gear Technology

http://www.geartechnology.com/

Gear Solutions

http://www.gearsolutionsonline.com/

 

[metengr]

SAME the question to gear train of wind-powerd electricity generation used in Europe and USA?

For wind turbine gear box components;

planetary gears - carburizing method for surface hardening
ring gear - induction hardening and some manufacturers also nitride the gear teeth surface.