Molybdenum thiab Chromium Molybdenum Cov Hlau Uas Tiv Thaiv Kub Kub Vuam Electrode
R407
GB/T E6015-B3
AWS A5.5 E9015-B3
Kev piav qhia: R407 yog lub electrode hlau pearlitic uas tiv taus cua sov nrog lub txheej sodium hydrogen tsawg uas muaj 2.5% Cr - 1% Mo. Siv DCEP (direct current electrode positive) thiab tuaj yeem vuam rau txhua qhov chaw. Lub weldment yuav tsum tau preheated rau 200 ~ 300 ° C ua ntej vuam.
Daim Ntawv Thov: Siv rau kev vuam cov kav dej kub thiab siab nrog qhov kub ua haujlwm qis dua 550 ° C, cov tshuab tshuaj lom neeg, cov khoom siv tawg roj av, thiab lwm yam.
Cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov hlau vuam (%):
| C | Mn | Si | Cr | Mo | S | P |
| 0.05 ~ 0.12 | 0.50 ~ 0.90 | ≤0.50 | 2.00 ~ 2.50 | 0.90 ~ 1.20 | ≤0.030 | ≤0.030 |
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) Kub ib txwm. |
| Tau lees paub | ≥590 | ≥490 | ≥15 | ≥47 |
| Tau kuaj xyuas | 600 ~ 680 | ≥500 | 18 ~ 21 |
Cov ntsiab lus hydrogen diffusion ntawm cov hlau tso: ≤4.0mL / 100g (txuj ci glycerin)
Kev tshuaj xyuas X-ray: Kuv qib
Pom zoo tam sim no:
| Txoj kab uas hla ntawm tus pas nrig (hli) | 2.5 | 3.2 | 4.0 | 5.0 |
| Vuam Tam Sim No (Ib) | 60 ~ 90 | 90 ~ 120 | 140 ~ 180 | 170 ~ 210 |
Daim Ntawv Ceeb Toom:
1. Lub electrode yuav tsum tau ci rau 1 teev ntawm 350 ℃ ua ntej vuam ua haujlwm;
2. Nws yog ib qho tseem ceeb uas yuav tsum tau ntxuav cov xeb, cov roj, dej, thiab cov khoom tsis huv ntawm cov khoom vuam ua ntej vuam.
Cov Khoom Sib Xws
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