Nickel thiab Nickel Alloy Vuam Electrode
N327-4
GB/T ENi6276
AWS A5.11 ENiCrMo-4
Nqe lus piav qhia: Ni327-4 yog nickel-based electrode nrog qis-hydrogen sodium txheej.Siv DCEP (direct tam sim no electrodezoo).Nws muaj kev ua haujlwm zoo heev nrog kev ruaj khov arc combustion, tsawg spatter, yooj yim tshem tawm slag,
thiab zoo nkauj weld.Mechanical zog ntawm deposited hlau yog ruaj khov.
Daim ntawv thov: Siv rau vuam tsawg-carbon nickel-chromium-molybdenum alloys, xws li Hastelloy C276, ASTM B574, B575, B619, B622, B626, thiab kuj siv tau rau vuam sib txawv steels nrog rau lwm yam nickel-raws li alloys.
Tshuaj muaj pes tsawg leeg ntawm weld hlau (%):
| C | Mn | Si | Cr | Ni | Mo |
| ≤ 0.02 | ≤1.0 | ≤0.2 | 14.5-16.5 Nws | ≥50.0 | 15.0-17.0 Nws |
| W | Co | Fe | S | P | Lwm yam |
| 3.0 ~ 4.5 hli | ≤ 2.5 | 4.0 ~ 7.0 | ≤ 0.015 | ≤ 0.020 | ≤0.5 |
Mechanical zog ntawm weld hlau:
| Cov khoom kuaj | Tensile zog Mpa | Yield zog Mpa | Elongation % |
| lav | ≥690 | ≥400 | ≥ 22 |
Pom zoo tam sim no:
| Qws txoj kab uas hla (mm) | 2.5 | 3.2 | 4.0 |
| Vuam tam sim no (A) | 60 ~ 90 | 70 ~ 110 ib | 90 ~ 150 hli |
Daim ntawv ceeb toom:
1. Cov electrode yuav tsum tau ci rau 1 teev ntawm ib ncig ntawm 300 ℃ ua ntej vuam ua haujlwm.Sim siv luv luv arc rau vuam;
2. Nws yog ib qho tseem ceeb los ntxuav cov xeb, roj, dej, thiab impurities ntawm vuam qhov chaw ua ntej vuam.
3. Sim siv cov kab me me zog thaum vuam, ntau txheej thiab ntau dhau welding.
