Hlau Kub QisKev vuamHluav taws xob
W707Ni
GB/T E5515-C1
Kev piav qhia: W707Ni yog lub electrode hlau uas kub tsawg uas muaj Ni nyob rau hauv ib txheej sodium hydrogen tsawg. Siv DCEP (direct current electrode positive) thiab tuaj yeem vuam rau txhua qhov chaw. Cov hlau uas tso rau hauv lub electrode tseem muaj zog zoo ntawm -70 ° C.
Daim Ntawv Thov: Siv rau vuam cov hlau kub qis xws li 2.5Ni.
Cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov hlau vuam (%):
| C | Mn | Si | Ni | S | P |
| ≤0.12 | ≤1.25 | ≤0.60 | 2.00 ~ 2.75 | ≤0.020 | ≤0.025 |
Cov khoom siv kho tshuab ntawm cov hlau vuam:
| Khoom sim | Lub zog tensile Mpa | Lub zog tawm los Mpa | Kev ntev % | Tus nqi cuam tshuam (J) -70 ℃ |
| Tau lees paub | ≥540 | ≥440 | ≥17 | ≥27 |
Cov ntsiab lus hydrogen diffusion ntawm cov hlau tso: ≤6.0mL / 100g (txheej txheem glycerin) lossis ≤10mL / 100g (txheej txheem mercury lossis roj chromatography)
Kev tshuaj xyuas X-ray: Kuv qib
Pom zoo tam sim no:
| (hli) Txoj kab uas hla ntawm tus pas nrig | 2.0 | 2.5 | 3.2 | 4.0 | 5.0 |
| (Ib) Vuam Tam Sim No | 40 ~ 70 | 60 ~ 90 | 90 ~ 120 | 140 ~ 180 | 170 ~ 210 |
Daim Ntawv Ceeb Toom:
- Lub electrode yuav tsum tau ci rau 1 teev ntawm 350 ℃ ua ntej vuam ua haujlwm;
- Nws yog ib qho tseem ceeb uas yuav tsum tau ntxuav cov xeb, roj nplai, dej, thiab cov khoom tsis huv ntawm cov khoom vuam ua ntej vuam;
- Sim siv lub zog me me ntawm txoj kab thaum vuam, ntau txheej thiab ntau txoj kev vuam.
