Igwe Okpomọkụ dị alaịgbado ọkụElectrode
W707Ni
GB/T E5515-C1
Nkọwa: W707Ni bụ electrode ígwè dị ala nke nwere Ni na mkpuchi sodium dị ala.Jiri DCEP (nke dị ugbu a nke ọma) ma nwee ike ịgbanye ya n'ọnọdụ niile.Ọla edobere ka nwere mmetụta siri ike na -70 Celsius.
Ngwa: Ejiri ya maka ịgbado ọkụ dị ala dị ka 2.5Ni.
Ngwakọta kemịkalụ nke igwe weld (%):
| C | Mn | Si | Ni | S | P |
| ≤0.12 | ≤1.25 | ≤0.60 | 2.00 ~ 2.75 | ≤0.020 | ≤0.025 |
Njirimara nke igwe weld metal:
| Nwalee ihe | Ike ọdụdọ Mpa | Mpụta ike Mpa | Ogologo oge % | Uru mmetụta (J) -70 ℃ |
| Ekwenyere | ≥540 | ≥440 | ≥17 | ≥27 |
Mgbasa hydrogen ọdịnaya nke ọla edobere: ≤6.0mL/100g (glycerin usoro) ma ọ bụ ≤10mL/100g (mercury ma ọ bụ gas chromatography usoro)
Nyocha x-ray: akara ule
Akwadoro ugbu a:
| (mm) Dayameta mkpanaka | 2.0 | 2.5 | 3.2 | 4.0 | 5.0 |
| (A) Welding Ugbu a | 40 ~ 70 | 60 ~ 90 | 90 ~ 120 | 140 ~ 180 | 170-210 |
Mara:
- The electrode ga-abụọ maka 1 hour na 350 ℃ tupu ịgbado ọkụ ọrụ;
- Ọ dị mkpa iji kpochaa nchara, ọnụ ọgụgụ mmanụ, mmiri, na adịghị ọcha na akụkụ ịgbado ọkụ tupu ịgbado ọkụ;
- Gbalịa iji obere ike ahịrị mgbe ị na-agbado, multi-layer na multi-pass welding.
