Electrode ea ho Welding ea Koporo le ea Koporo
T207
GB/T ECuSi-B
AWS A5.6 ECuSi
Tlhaloso: T207 ke electrode ea alloy ea koporo e nang le motheo oa boronse oa silicon le sekoahelo se tlase sa hydrogen sodium. Sebelisa DCEP (electrode ea hona joale e tobileng) e nang le thepa e ntle ea mechini. E na le khanyetso e ntle ea ho bola ho li-acid tse sa tloaelehang ntle le nitric acid, boholo ba li-acid tsa organic le metsi a leoatle.
Tšebeliso: E loketse ho tjheseletsa koporo, boronse ea silicon le koporo, ho tjheseletsa holim'a masela a liphaephe tsa mechini ea lik'hemik'hale, jj.
Sebopeho sa lik'hemik'hale sa tšepe e welded (%):
| Cu | Si | Mn | Pb | Al+Ni+Zn |
| ＞92.0 | 2.5 ~ 4.0 | ≤3.0 | ≤0.02 | ≤0.50 |
Litšobotsi tsa mechini tsa tšepe e welded:
| 试验项目 Ntho ea teko | 抗拉强度 Matla a tšepe Mpa | 延伸率 Ho lelefatsa % |
| 保证值 E tiiselitsoe | ≥270 | ≥20 |
Khoeli e khothaletsoang:
| Bophara ba molamu (mm) | 3.2 | 4.0 | 5.0 |
| ho tjheseletsa hona joale (A) | 90 ~ 130 | 110 ~ 160 | 150 ~ 200 |
Tsebiso:
Mehato ya tlhokomelo:
1. Electrode e lokela ho besoa mochesong o ka bang 300°C ka lihora tse 1 ho isa ho tse 2 pele e tjheseletsa;
2. Mongobo, oli, di-oxide le ditshila tse ding tse hodima weldment di lokela ho tloswa pele ho weldment.
3. Ha ho tjhesetswa boronse ya silicon kapa ho tjheseletsa hodima tshepe, ha ho hlokahale ho futhumatsa pele. Mocheso wa ho futhumatsa pele bakeng sa ho tjheseletsa koporo e hlwekileng ke hoo e ka bang 450°C, mme mocheso wa ho futhumatsa pele bakeng sa ho tjheseletsa koporo ke hoo e ka bang 300°C;
4. Ho tjheseletsa ka mothapo o mokgutshwane ho lokela ho sebediswa nakong ya ho tjheseletsa. Nakong ya ho tjheseletsa ka mekgahlelo e mengata, slag pakeng tsa mekgahlelo e lokela ho ba
e tlositsoe ka ho feletseng; kamora ho tjheseletsa, tjheseletsa ka hamore e bataletseng ya hlooho ho ntlafatsa dithollo, ho fedisa kgatello ya maikutlo, le ho ntlafatsa matla le ho hlaka ha tjheseletsa.
