Nickel and Nickel Alloy Welding Electrode
Ni327-4
GB/T ENi6276
AWS A5.11 ENiCrMo-4
ʻO ka wehewehe: ʻO Ni327-4 kahi nickel-based electrode me ka haʻahaʻa-hydrogen sodium coating.E hoʻohana i ka DCEP (direct current electrodemaikaʻi).Loaʻa iā ia ka hana kuʻihewa maikaʻi me ka hoʻopau ʻana i ka arc paʻa, ka liʻiliʻi o ka spatter, maʻalahi ka wehe ʻana i ka slag,
a me ka wili nani.Paʻa nā waiwai mechanical o ka metala i waiho ʻia.
Hoʻohana: Hoʻohana ʻia no ka wiliwili haʻahaʻa-carbon nickel-chromium-molybdenum alloys, e like me Hastelloy C276, ASTM B574, B575, B619, B622, B626, a hiki ke hoʻohana ʻia no ka hoʻopili ʻana i nā kila ʻokoʻa me nā mea hao nickel-based.
ʻO ka hui kemika o ka weld metala(%):
| C | Mn | Si | Cr | Ni | Mo |
| ≤0.02 | ≤1.0 | ≤0.2 | 14.5 ~ 16.5 | ≥50.0 | 15.0 ~ 17.0 |
| W | Co | Fe | S | P | 'ē aʻe |
| 3.0 ~ 4.5 | ≤2.5 | 4.0 ~ 7.0 | ≤0.015 | ≤0.020 | ≤0.5 |
Nā waiwai mīkini o ka weld metala:
| Mea ho'āʻo | Ka ikaika tensile Mpa | Hua ikaika Mpa | ʻO ka lōʻihi % |
| Hōʻoiaʻiʻo | ≥690 | ≥400 | ≥22 |
Manaʻo ʻia i kēia manawa:
| Anawaena lāʻau （mm） | 2.5 | 3.2 | 4.0 |
| Ke au wiliwili （A） | 60 ~ 90 | 70 ~ 110 | 90 ~ 150 |
Hoʻolaha:
1. Pono e kālua ʻia ka electrode no 1 hola ma kahi o 300 ℃ ma mua o ka hana wili.E ho'āʻo e hoʻohana i kahi pōkā pōkole e wili ai；
2. Pono pono e hoʻomaʻemaʻe i ka ʻōpala, ka ʻaila, ka wai, a me nā haumia ma nā ʻāpana wili ma mua o ka wili ʻana.
3. E ho'āʻo e hoʻohana i ka ikehu laina liʻiliʻi i ka wā e wiliwili ai, multi-layer a me multi-pass welding.
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