Electrọde ịgbado ígwè dị ala
W707
GB/T E5015-G
AWS A5.5 E7015-G
Nkọwa: W707 bụ elektrọd ígwè dị obere okpomọkụ nwere mkpuchi sodium dị obere hydrogen. Jiri DCEP (elektrọd direct current positive) ma nwee ike ịgbado ya n'ọnọdụ niile. Metal ahụ e tinyere ka nwere ezigbo ike mmetụta na -70°C.
Ngwa: Ejiri ya maka ịgbado ígwè dị ala dịka 2.5Ni.
Ngwakọta kemịkalụ nke ígwè weld(%):
| C | Mn | Si | Ni | S | P |
| ≤0.08 | ≤1.25 | ≤0.60 | 2.00 ~ 2.75 | ≤0.020 | ≤0.025 |
Njirimara mekaniki nke igwe weld:
| Ihe nnwale | Ike ọdụdọ Mpa | Ike mmeputa Mpa | Ogologo % | Uru mmetụta (J) -70℃ |
| Ekwere nkwa | ≥490 | ≥390 | ≥22 | ≥27 |
Ọdịnaya hydrogen nke ígwè e tinyere n'ime ya: ≤6.0mL/100g (usoro glycerin) ma ọ bụ ≤10mL/100g (usoro mercury ma ọ bụ gas chromatography)
Nnyocha X-ray: ọkwa I
Ugbu a akwadoro:
| （mm) Dayameta mkpanaka | 2.0 | 2.5 | 3.2 | 4.0 | 5.0 |
| (A) Ịgbado ọkụ ugbu a | 40 ~ 70 | 70 ~ 100 | 90 ~ 120 | 140 ~ 180 | 170 ~ 210 |
Rịba ama:
1. A ga-emerịrị electrode ahụ ruo otu awa na 350℃ tupu a rụọ ọrụ ịgbado ọkụ;
2. Gbalịa iji obere ike ahịrị mgbe ị na-agbado ọkụ, ịgbado ọkụ ọtụtụ oyi akwa na ịgbado ọkụ ọtụtụ ngafe.
