Nickel ati Nickel Alloy Welding Electrode
Ni307-7
GB/T ENi6152
Aws A5.11 ENiCrFe-7
Apejuwe: Ni307-7 jẹ elekiturodu ti o da lori nickel pẹlu ideri iṣuu soda kekere-hydrogen.Lo DCEP (elekiturodu lọwọlọwọ taararere).O ni iṣẹ alurinmorin ti o dara julọ pẹlu ijona aaki iduroṣinṣin, spatter ti o dinku, yiyọ slag rọrun,ati ki o lẹwa weld.Irin ti a fi silẹ ni awọn ohun-ini ẹrọ iduroṣinṣin ati resistance ipata to dara ninuoxidizing otutu-giga ati sulfur ti o ni awọn bugbamu.
Ohun elo: Ti a lo ni imọ-ẹrọ iparun, sulfuric acid, nitric acid ati ohun elo iṣelọpọ hydrogen fluorine, gẹgẹ bi nickel 690 alloy, ASTM B166, B167, b168, bbl, tun le ṣee lo fun alurinmorin nickel-chromium iron ati irin alagbara, irin ati ipata ipata -sooro fẹlẹfẹlẹ lori irin.
Apapọ kemikali ti irin weld (%):
| C | Mn | Fe | Si | Ni | Cr |
| ≤0.05 | ≤5.0 | 7.0 ~ 12.0 | ≤0.8 | ≥50.0 | 28.0 ~ 31.5 |
| Cu | Mo | Nb | S | P | Omiiran |
| ≤0.5 | ≤0.5 | 1.0 ~ 2.5 | ≤0.015 | ≤0.020 | ≤0.5 |
Awọn ohun-ini ẹrọ ti irin weld:
| Ohun elo idanwo | Agbara fifẹ Mpa | Agbara ikore Mpa | Ilọsiwaju % |
| Ẹri | ≥550 | ≥360 | ≥27 |
Iṣeduro lọwọlọwọ:
| Opa opin (mm) | 2.5 | 3.2 | 4.0 |
| Alurinmorin lọwọlọwọ (A) | 60 ~ 90 | 80 ~ 110 | 110 ~ 150 |
Akiyesi:
1. Awọn elekiturodu gbọdọ wa ni ndin fun1 wakati ni ayika 300 ℃ ṣaaju ki o to alurinmorin isẹ;
2. O ṣe pataki lati nu ipata, epo, omi, ati awọn idoti lori awọn ẹya alurinmorin ṣaaju ṣiṣe alurinmorin.Gbiyanju lati lo aaki kukuru lati weld.
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