Taw qhia
Kab lus no piav qhia DIN 17660 txhuas tooj dag raj CuZn20Al2 tooj liab alloy seamless raj. Aluminium tooj dag, tsim C68700, yog tooj liab -zinc alloy nrog ib qho me me ntawm txhuas ntxiv uas txhim kho corrosion kuj thiab yaig kuj nyob rau hauv seawater. Nws yog ib qho khoom siv rau cov condenser thiab cov cua kub exchanger raj nyob rau hauv ntug dej hiav txwv fais fab nroj tsuag thiab marine kev pab cuam.
Kev sib xyaw
C68700 muaj 76.0 mus rau 79.0 feem pua tooj liab, 1.8 mus rau 2.5 feem pua ntawm txhuas thiab 0.02 rau 0.06 feem pua arsenic nrog qhov sib npaug zinc. Cov txhuas ntxiv dag zog rau cov hlau thiab txhim kho cov yeeb yaj kiab tiv thaiv, thaum cov arsenic ntxiv suppresses dezincification, xaiv corrosion uas yuav txwv tsis pub tawm tsam qhov siab -zinc matrix.
Corrosion Cwj Pwm
Aluminium tooj dag ua kom ruaj khov, nws tus kheej -kho nto zaj duab xis nyob rau hauv dej hiav txwv uas tiv taus corrosion, pitting thiab impingement nres ntawm nruab nrab ntws velocities. Nws ua tau zoo nyob rau hauv cov dej huv thiab tsis muaj kuab paug me me hauv ntug dej hiav txwv thiab yog ib qho qis dua - nqi rau tooj liab -nickel hauv ntau daim ntawv thov condenser, yog tias cov dej chemistry nyob hauv nws qhov kev txwv.
| Element | Hom kab mob |
|---|---|
| Tooj | 76.0 - 79.0% |
| Aluminium | 1.8 - 2.5% |
| Arsenic | 0.02 - 0.06% |
| Zinc | Tshuav |
Cov khoom
Cov alloy muaj lub zog tensile ntawm li 340 mus rau 430 MPa nyob rau hauv lub annealed mob, zoo ductility rau dov thiab dabtsi yog khoov rau hauv lub raj, thiab thermal conductivity ntawm roughly 100 W / (m·K), uas txhawb kev sib pauv cua sov. Nws tuaj yeem raug brazed thiab soldered nrog cov qauv kev coj ua.
Daim ntawv thov thiab cov qauv
Feem ntau siv yog condenser thiab cua kub exchanger raj nyob rau hauv fais fab nroj tsuag, desalination units, roj coolers thiab shipboard systems. Tube yog muab rau ASTM B111, thiab lub npe German CuZn20Al2 nyob rau hauv DIN 17660 npog tib tsev neeg ntawm txhuas tooj dag raj.
Kev pov thawj
Paub meej cov tooj liab, txhuas thiab arsenic ntau yam ntawm daim ntawv pov thawj zeb, tshawb xyuas qhov kev xav tau ntawm dezincification, thiab xyuas cov raj qhov ntev thiab npau taws tawm tsam ASTM B111 ua ntej txais.
