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| | [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 5) |  |
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+66Ed offen 88 CatSeven kai Thomsen Arcigno Frank S. Oliver Oettel chiccopeso BlackD3vil atte roskam Panas Kato74 I.T-Racing cassandre crigar walms dga vorlis SaltRacer jack177071 Architito2002 yeahhim Howard Gifford 2strokeman remix31 Apriliabarth Tim Ey pojoran Institute of TwoStrokes Eric_91 jfn2 melvyn trevor JPG Toop alain combemale Charles Kaneb carlovitch1 JanBros Frits Overmars MINGRET01 EDOUARD Jean Maurice Specken samy laranjateam polcat88 motori49 Quod et probat Elmi bentou LeonardoMRF2 MANETON RAW Vannik desmofr16 Döllinger fullgazlolo Emmanuel Laurentz SLT Dan42 Adco Marc CARBONX2 porttiming124 fpayart Jan Thiel peter1962 70 participants | |
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Mestre
Nombre de messages : 175
Localisation : NORMANDIE
Date d'inscription : 04/12/2011
| Sujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 5) ![[GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 5) - Page 21 Icon_minitime](https://2img.net/i/fa/icon_minitime.gif) Jeu 31 Oct 2024 - 21:31 | |
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Bonsoir Frits
I have add an Aprilia 250 V2 crankshaft as at this time we were thinking to copy it with my friend , there were no washers on the side of the conrods , but there were something a hard coating very thin , I would say nothing , may be DLC ? Yesterday I was speaking with Francis Payart he know this but he do not what is this material . Two washers less it is two mm more for the crankpins inside the wheels .
All the best Jean-Paul
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| | | | Dan42
Nombre de messages : 8933
Localisation : Margerie-Chantagret 42
Date d'inscription : 06/04/2014
| | Sujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 5) Ven 1 Nov 2024 - 8:59 | |
| D'après cette description et tenant compte de la faisabilité: revêtement très dur, mince et localisé autour de l'alésage de l'axe, je soupçonne une projection plasma de carbure de tungstène ,de chrome, de titane ou autre substance régulièrement appliquée sur les aubes de turbines de réacteurs. Il y a une société très spécialisée dans le coin de St-Etienne, nous y faisions revêtir des rouleaux de grand diamètre pour améliorer le grip sur des bandes de tôle lisses à entraîner. J'ai perdu le nom pour l'instant mais je doute que ce soit OK pour de la pièce unitaire. J'ai retrouvé: PRAXAIR surface technologies.St-Etienne.
Dan |
| | | | Motors31
Nombre de messages : 230
Localisation : Pujaudran (Gers - Gascogne -France)
Date d'inscription : 22/07/2012
| | Sujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 5) Ven 1 Nov 2024 - 22:13 | |
| - Frits Overmars a écrit:
- Motors31 a écrit:
- Hello Frits , I probably didn't understood something in FOS exhaust concept , you propose for speed of sound to start with 550 m/s but on wikipedia I've found 340 m/s .
Wikipedia is talking about the speed of sound in ambient air at 20°C.
I am talking the speed of sound in exhaust gas of about 600°C. Thanks Frits . |
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| | Sujet: Re: [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 5) | |
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| | | | | | [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 5) | |
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| » [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 4)
» [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 5)
» [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 1) (Locked)
» [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 3) (Locked)
» [GP125] All that you wanted to know on Aprilia RSA 125, and more, by Mr Jan Thiel and Mr Frits Overmars (PART 2) (Locked)
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