Ọla kọpa na ọla kọpa Alloy Welding Electrode
T207
GB/T ECuSi-B
AWS A5.6 ECuSi
Nkọwa: T207 bụ ọla kọpa alloy electrode nwere silicon bronze isi na mkpuchi hydrogen sodium dị ala.Jiri DCEP (direct current electrode positive) nwere nnukwu ihe eji arụ ọrụ.Ọ nwere ezigbo nguzogide corrosion na inorganic acid ndị ọzọ karịa nitric acid, ọtụtụ acid organic na mmiri oké osimiri.
Ngwa: Ọ na-adabara maka ịgbado ọkụ nke ọla kọpa, ọla kọpa silicon na ọla, ịgbado ọkụ nke linings nke pipeline ígwè, wdg.
Ngwakọta kemịkalụ nke igwe weld (%):
| Cu | Si | Mn | Pb | Al+Ni+Zn |
| 92.0 | 2.5-4.0 | ≤3.0 | ≤0.02 | ≤0.50 |
Njirimara nke igwe weld metal:
| 试验项目 Nwalee ihe | 抗拉强度 Ike ọdụdọ Mpa | 延伸率 Ogologo oge % |
| 保证值 Ekwenyere | ≥270 | ≥20 |
Akwadoro ugbu a:
| Dayameta mkpanaka (mm) | 3.2 | 4.0 | 5.0 |
| Welding Ugbu a (A) | 90 ~ 130 | 110 ~ 160 | 150 ~ 200 |
Mara:
Mkpachapụ anya:
1. A ghaghị ime electrode na ihe dịka 300 Celsius maka awa 1 ruo 2 tupu ịgbado ọkụ;
2. A ghaghị iwepụ mmiri, mmanụ, oxides na adịghị ọcha ndị ọzọ n'elu welded tupu ịgbado ọkụ.
3. Mgbe ịgbado ọkụ silicon ọla ma ọ bụ surfacing welding na ígwè, ọ dịghị preheating a chọrọ.Okpomọkụ a na-ekpo ọkụ maka ịgbado ọkụ ọla kọpa dị ọcha bụ ihe dịka 450 Celsius, na ikpo ọkụ maka ịgbado ọkụ ọla bụ ihe dịka 300 Celsius;
4. Ekwesịrị iji ịgbado ọkụ dị mkpụmkpụ n'oge ịgbado ọkụ.N'oge ịgbado ọkụ multi-layer, slag n'etiti n'ígwé ga-adị
wepụrụ kpamkpam;Mgbe ịgbadochara ọkụ, were hama dị larịị machie weld ahụ iji mee ka ọka dị mma, wepụ nchekasị, ma melite ike na plastik nke weld ahụ.
