Cov Hlau Sib Txuas Qis
J557SLA、 J557SLB
GB/T E5515-G
AWS E8015-G
Kev piav qhia: Qhov no yog cov electrode tshwj xeeb uas muaj hydrogen sodium tsawg rau cov hlau aluminized. Siv DCEP (direct current electrode positive), thiab tuaj yeem vuam tau rau txhua qhov chaw nrog kev ua haujlwm luv luv. J557SLA tuaj yeem vuam ncaj qha yam tsis tau tshem tawm cov txheej aluminized ntawm qhov chaw groove ua ntej vuam. Tab sis J557SLB yuav tsum tshem tawm cov txheej aluminized ntawm qhov chaw groove ua ntej vuam.
Daim Ntawv Thov: Nws yog siv rau kev vuam cov qauv hlau aluminized nyob rau hauv qhov nruab nrab corrosion ntawm hydrogen sulfide, sulfur, ammonia, ammonium bicarbonate thiab hydrogen nitrogen nrog qhov kub ua haujlwm hauv qab 540 ° C. Xws li cov kav dej boiler, cov khoom siv roj av refining, cov khoom siv chiv thiab cov kav dej ncu, thiab lwm yam.
Cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov hlau vuam (%):
| C | Mn | Si | Cr | Mo | Al | S | P |
| ≤0.12 | 0.50 ~ 0.90 | ≤0.50 | ≈0.80 | ≥0.20 | ≤0.055 | ≤0.035 | ≤0.035 |
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 | ≥540 | ≥440 | ≥17 | ≥49 |
Cov ntsiab lus hydrogen diffusion ntawm cov hlau tso: ≤6.0mL / 100g (txuj kev glycerin)
Kev tshuaj xyuas X-ray: Kuv qib
Pom zoo tam sim no:
| (hli) Txoj kab uas hla ntawm tus pas nrig | 2.5 | 3.2 | 4.0 | 5.0 |
| (Ib) Vuam Tam Sim No | 50 ~ 80 | 80 ~ 110 | 130 ~ 170 | 160 ~ 200 |
Daim Ntawv Ceeb Toom:
1. Lub electrode yuav tsum tau ci rau 1 teev ntawm ib ncig ntawm 350 ℃ ua ntej welding 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.
