Tsawg kub hlauVuamHluav taws xob
wb 707ni
GB/T E5515-C1
Nqe lus piav qhia: W707Ni yog cov hlau tsis tshua muaj hluav taws xob uas muaj Ni hauv cov txheej txheem hydrogen sodium tsawg.Siv DCEP (cov khoom siv hluav taws xob ncaj qha tam sim no) thiab tuaj yeem txuas rau txhua txoj haujlwm.Cov hlau tso tawm tseem muaj qhov cuam tshuam zoo ntawm -70 ° C.
Daim ntawv thov: Siv rau vuam tsis tshua muaj hlau xws li 2.5Ni.
Tshuaj muaj pes tsawg leeg ntawm weld hlau (%):
| C | Mn | Si | Ni | S | P |
| ≤ 0.12 | ≤1.25 | ≤ 0.60 | 2.00-2.75 Nws | ≤ 0.020 | ≤ 0.025 |
Mechanical zog ntawm weld hlau:
| Cov khoom kuaj | Tensile zog Mpa | Yield zog Mpa | Elongation % | Tus nqi cuam tshuam (J) -70 ℃ |
| lav | ≥540 | ≥440 | ≥17 | ≥ 27 |
Diffusion hydrogen ntsiab lus ntawm deposited hlau: ≤6.0mL / 100g (glycerin method) los yog ≤10mL / 100g (mercury los yog gas chromatography method)
X-ray kuaj: qib kuv
Pom zoo tam sim no:
| (mm) Qws txoj kab uas hla | 2.0 | 2.5 | 3.2 | 4.0 | 5.0 |
| (A) Vuam tam sim no | 40 ~ 70 | 60 ~ 90 | 90 ~ 120 hli | 140 ~ 180 ib | 170-210 ib |
Daim ntawv ceeb toom:
- Cov electrode yuav tsum tau ci rau 1 teev ntawm 350 ℃ ua ntej vuam ua haujlwm;
- Nws yog ib qho tseem ceeb los ntxuav cov xeb, roj nplai, dej, thiab impurities ntawm vuam qhov ua ntej vuam;
- Sim siv cov kab me me zog thaum vuam, ntau txheej thiab ntau dhau vuam.
