Cov hlau tsis tshua muaj hlauKev vuam hlauHluav taws xob
J707Ni
GB/T E7015-G
AWS E10015-G
Kev piav qhia: J707Ni yog cov hlau electrode uas muaj zog tsawg thiab muaj cov txheej txheem sodium hydrogen tsawg. Siv DCEP (cov electrode tam sim no zoo) thiab tuaj yeem vuam tau txhua qhov chaw. Cov hlau uas tau tso rau hauv muaj cov khoom siv kho tshuab zoo. Piv nrog rau J707 electrode, qhov tseem ceeb ntawm J707Ni yog tias qhov kub qis thiab kev tiv thaiv kab nrib pleb tau zoo dua.
Daim Ntawv Thov: Siv rau kev vuam cov qauv hlau uas tsis muaj zog thiab muaj zog ntawm cov qib zog sib xws, xws li 14MnMoVB, WEL-TEN70 thiab Japanese HW56 thiab lwm cov qauv hlau uas tsis muaj zog thiab muaj zog.
Cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov hlau vuam (%):
| C | Si | Mn | Ni | Mo | Cr | S | P |
| ≤0.10 | ≤0.60 | ≥1.00 | 1.80 ~ 2.20 | 0.40 ~ 0.60 | ≤0.20 | ≤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) | |
| -40 ℃ | -50 ℃ | ||||
|
Tau lees paub | ≥690 | ≥590 | ≥15 | — | ≥27 |
|
Tau kuaj xyuas | 760 | 630 | 23 | 140 | — |
Cov ntsiab lus hydrogen diffusion ntawm cov hlau tso: ≤4.0mL / 100g (txuj ci glycerin)
Kev tshuaj xyuas X-ray: Qib I
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 | 60 ~ 100 | 100 ~ 140 | 140 ~ 190 | 190 ~ 250 |
Daim Ntawv Ceeb Toom:
1. Lub electrode yuav tsum tau ci rau 1 teev ntawm 350 ~ 380 ℃ ua ntej vuam ua haujlwm;
2. 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;
3. Siv txoj kev vuam luv luv thaum vuam. Txoj kev vuam nqaim yog qhov tsim nyog.
