Freerails Home 
Home Search search Menu menu Not logged in - Login | Register
Freerails > Model Railroad Forums > Proto-Photos > Rails Painted White - Anti Heat Expansion

Freerails IS ACCEPTING new Members ... To join Freerails ... See how to Register as a Member in the 'Joining Freerails' Forum

Rails Painted White - Anti Heat Expansion
 Moderated by: .
New Topic Reply Printer Friendly
 Rating:  Rating
AuthorPost
 Posted: Fri May 15th, 2020 07:19 pm
  PMQuoteReply
1st Post
pipopak
Moderator
 

Joined: Wed Apr 13th, 2011
Location: Florida USA
Posts: 2086
Status: 
Offline
 
Just found this picture:

https://i.redd.it/m0ke05cuqxy41.jpg

With this explanation:

It's rail painting season in Italy!
Painting the rails white can reduce their temperature
up to a few degrees Celsius,
decreasing the effects of thermal expansion
and deformation on long sections.

It is true or just a meme?

Jose.




____________________
Junk is something you throw away three weeks before you need it.
Back To Top

 Posted: Fri May 15th, 2020 10:03 pm
  PMQuoteReply
2nd Post
Helmut
Registered


Joined: Sun Feb 17th, 2013
Location: Friedberg, Germany
Posts: 1291
Status: 
Offline
 
If you are able to read German.

This is no hoax.





____________________
Regards, H.
Back To Top

 Posted: Fri May 15th, 2020 10:56 pm
  PMQuoteReply
3rd Post
Michael M
Registered


Joined: Thu Jan 26th, 2017
Location: San Bernardino, California USA
Posts: 1943
Status: 
Offline
 
Do the rails need to be cleaned before painting?





____________________
Michael
-------
Nye, Inyo & Esmeralda Railroad

https://www.flickr.com/photos/183715370@N03/albums/72157710477887657/
Back To Top

 Posted: Fri May 15th, 2020 11:53 pm
  PMQuoteReply
4th Post
pipopak
Moderator
 

Joined: Wed Apr 13th, 2011
Location: Florida USA
Posts: 2086
Status: 
Offline
 
Google translate is my friend.

Thanks.

Jose.




____________________
Junk is something you throw away three weeks before you need it.
Back To Top

 Posted: Sat May 16th, 2020 03:30 am
  PMQuoteReply
5th Post
Kitbash0n30
Registered


Joined: Mon Dec 10th, 2012
Location: Boonville, Missouri USA
Posts: 878
Status: 
Offline
 
White rails aren't just for Italy any more


https://www.railway-technology.com/features/solution-to-overheated-rail-tracks/


Deutsche Bahn (DB) has painted around 1km of the track on the Hanover and Würzburg high-speed line with environmentally friendly white paint to see whether it could prevent the serious problem of overheating rails and warped tracks during heatwaves.



https://www.swissinfo.ch/eng/extreme-heat_swiss-railway-field-tests-white-paint-to-keep-tracks-from-buckling/44287044


The Rhaetian Railwayexternal link in the eastern Swiss canton of Graubünden is testing a technique commonly used in Italy to fight the distorting effects of heat on metal: painting the tracks white.

The goal is to keep the metal tracks from deforming or buckling in the heat, which has affected the whole country in one of the hottest Julys on record.

The white coating is currently being tested on a 300-metre (984-foot) section of track in Graubünden, between the villages of Küblis and Fideris. The paint was applied in mid-June, just in time to exert its effects in the full summer heat.

In theory, the temperature of the tracks could be reduced by as much as seven degrees as a result of the treatment, Yvonne Dünser, a spokesperson for the Rhaetian Railway, told the Swiss News Agency, ATS. The results will be assessed when it is less warm. Rail research A study by the Swiss Federal Technology Institute ETH Zurich showed that white paint had a positive impact in strong sunlight. The researchers then turned to the Rhaetian Railway as a practical test subject.



____________________
See y'all later, Forrest.
Screw the rivets, I'm building for atmosphere
Back To Top


 Current time is 07:11 pm

Freerails > Model Railroad Forums > Proto-Photos > Rails Painted White - Anti Heat Expansion
Top



UltraBB 1.172 Copyright © 2007-2016 Data 1 Systems