COV NTAWV THOV:
Nws yog qhov tsim nyog rau kev vuam ntawm cov hlau grey muaj zog thiab cov hlau cam khwb cia nodular, xws li lub tog raj kheej, lub cav thaiv, lub thawv iav, thiab lwm yam.
KEV FAIB XYUAS:
AWS A5.15 / ASME SFA5.15 ENiFe-CI
JIS Z3252 DFCNiFe
COV CIM:
AWS ENiFe-CI (Z408) yog lub electrode hlau cam khwb cia nrog nickel hlau alloy core thiab muaj zog txo qis ntawm graphite txheej. Nws tuaj yeem siv rau hauv AC thiab DC ob lub hom phiaj, muaj qhov ruaj khov arc, thiab yooj yim rau kev khiav lag luam. Lub electrode muaj cov yam ntxwv ntawm lub zog siab, zoo plasticity, qis linear expansion coefficient thiab lwm yam. Qhov tawg tsis kam rau grey cast iron yog ntau npaum li ntawd rau Z308, thaum qhov tawg tsis kam rau nodular cast iron yog ntau dua li ENi-CI (Z308). Rau cov hlau cam khwb cia nrog phosphorus siab dua (0.2% P), nws kuj muaj cov txiaj ntsig zoo thiab nws qhov kev ua tau zoo txiav qis dua Z308 thiab Z508 me ntsis. Z408 yog siv rau hauv kev vuam ntawm grey hlau thiab nodular cast iron rau chav
CEEB TOOM:
Ua ntej vuam, cov electrodes yuav tsum tau ci rau 1 teev nrog qhov kub ntawm 150 ± 10 ℃ ua ntej siv.
Thaum vuam, nws yog qhov tsim nyog los siv qhov vuam nqaim thiab txhua qhov ntev ntawm qhov vuam yuav tsum tsis pub tshaj 50 hli. Siv lub rauj ntaus qhov chaw vuam maj mam nrog lub rauj tam sim ntawd tom qab vuam kom tshem tawm kev ntxhov siab thiab tiv thaiv kev tawg.
Pom zoo kom siv cua sov tsawg dua.
COV TSHUAJ HMOO NTAWM COV HLAU DEPOSITED (THE MASS FRACTION): %
| Cov ntsiab lus | C | Si | Mn | S | Fe | Ni | Cu | Qhov hnyav ntawm lwm cov ntsiab lus |
| Tus nqi txheem | 0.35-0.55 | ≤0.75 | ≤ 2.3 | ≤0.025 | 3.0- 6.0 | 60- 70 | 25- 35 | ≤ 1.0 |
VUAM TXWV TAM SIM NO: (AC, DC +)
| Lub electrode txoj kab uas hla (hli) | 3.2 | 4.0 | 5.0 |
| Ntev (hli) | 350 | 350 | 350 |
| Vuam tam sim no (A) | 90-110 | 120-150 | 160-190 |
Cov yam ntxwv ntawm kev siv:
Arc ruaj khov heev.
Kev tshem tawm zoo heev ntawm slag.
Kev nkag mus yog qhov ntiav.
Zoo kub thiab corrosion kuj.
Tsis kam tawg zoo heev.
