ZUP racing Kranj

Zdravo!!

Mene zanima, ce kdo od vas ve s kerimi postopki bi ojacal povrsino odmicnih gredi ,da bi bile bolj odporne proti obrabi.Predvsem pa kje pa za koliko bi mi to naredili hehe.


Thnx

jst bi reku da z indukcijskim kaljenjem, čeprov za zadevo prvič slišm (mislm za "ojačanje" odmičnih), majo pa to mašino na strojnmu faxu, če se ti da z njimi kej ment:D

nitriranje oz cementiranje? Oboje bi na strojnem faksu lahko nardil.

Kaj pa hard kromanje?

http://www.stockcarscience.com/blog/index.php?cat=15

There are two issues: friction and wear, both of which can be addressed by coatings. Very thin (a tenth of a human hair’s width) coatings are deposited on the cams and/or lifters. Wear is two materials abrading each other. When the parts wear, they get smaller, they don’t contact they way they are supposed to, and they often get rougher. Friction, the resistance to motion of two things sliding past each other, costs horsepower in the engine.

Nitrides (chromium nitride and titanium nitride) are very hard ceramics that minimize wear. (Titanium nitride is the gold-colored coating you see on drill bits.) Coating a part is done by putting it in a vacuum chamber, removing most of the air molecules, then vaporizing your metal (titanium or chromium) and introducing some nitrogen. These types of coatings are often used on the parts of valves that contact the valve seats.

Friction is a second problem because engine power has to be used to overcome friction and that takes away from the power that goes to the wheels. Carbon comes in different forms. Two are graphite, which is one of the softest forms, and diamond, which is the hardest mineral known. Both are crystalline. If you make carbon amorphous-meaning that the atoms don’t have a regular arrangement-it’s called ‘diamond-like carbon’ or DLC. DLC has the best of both world-hardness and low friction. DLC has 10x less wear than titanium nitride and a lower coefficient of friction (which means its more slippery). DLC is actually a little too hard in some cases: it is fairly brittle, so it can crack if it gets hit too hard. Metal-doped DLC is not as hard, but also not as brittle. Since NASCAR engines often use ‘lofting’ (the lifter actually loses contact with the cam lobe), there’s a lot of impact when the pieces come back together.

Alan, ce ti ni zal dat tam do 150€ imas tega modela ki meni motor pedena, bisimoto.com, dela odmicne za SOHC honde oz obdela obstojece, in jih da premazat nakoncu antifrikcijsko prej pa seveda cez primerne postopke ojacanja...

Alan?:))

No hvala za nasvet kljub napaki v identiteti hehehe

Kakršnokoli tršanje površine odmične gredi bo povzročilo obrabo na dročnikih če ne bodo obdelani tudi ti.

Bom kar tule vprašal

cilinder po brušenju (zmes Al) bi prevlekel z nickel silicon carbide, mogoče kakšen pozna, kdo to slučajno počne v slo?

V Italiji.

hm OK
bom poslal v UK

thx

odlična ideja....ko se bom prvič na iMTju smukal bom pa še tole vprašu.

nekje sem prebral da bi to znal nardit tut pri tomosu, tko da mogoce lahko tut tam vprasas.

malo nazaj so imeli hard crom...mogoče, bom vprašu