Electrode wiliwili keleawe a me ke keleawe
T207
GB/T ECuSi-B
AWS A5.6 ECuSi
ʻO ka wehewehe: ʻO T207 kahi electrode keleawe keleawe me ke keleawe keleawe silika a me ka uhi hydrogen sodium haʻahaʻa.E hoʻohana i ka DCEP (direct current electrode positive) me nā waiwai mechanical nui.Loaʻa iā ia ke kūpaʻa corrosion maikaʻi i nā ʻakika inorganic ʻē aʻe ma mua o ka waikawa nitric, ka hapa nui o nā waikawa organik a me ka wai kai.
Hoʻohana: He kūpono ia no ka hoʻoheheʻe ʻana i ke keleawe, ke keleawe silika a me ke keleawe, ka hoʻoheheʻe ʻana i nā linings o nā pipeline mīkini mīkini, etc.
ʻO ka hui kemika o ka weld metala(%):
| Cu | Si | Mn | Pb | Al+Ni+Zn |
| ＞92.0 | 2.5 ~ 4.0 | ≤3.0 | ≤0.02 | ≤0.50 |
Nā waiwai mīkini o ka weld metala:
| 试验项目 Mea ho'āʻo | 抗拉强度 Ka ikaika tensile Mpa | 延伸率 ʻO ka lōʻihi % |
| 保证值 Hōʻoiaʻiʻo | ≥270 | ≥20 |
Manaʻo ʻia i kēia manawa:
| Anawaena lāʻau （mm） | 3.2 | 4.0 | 5.0 |
| Ke au wiliwili （A） | 90 ~ 130 | 110 ~ 160 | 150 ~ 200 |
Hoʻolaha:
Nā mea e mālama ai:
1. Pono e kālua ʻia ka electrode ma kahi o 300 ° C no 1 a 2 mau hola ma mua o ke kuʻi ʻana;
2. Pono e hoʻoneʻe ʻia ka mākū, ka ʻaila, nā oxides a me nā mea haumia ʻē aʻe ma ka ʻili o ka weld ma mua o ka wili.
3. I ka wā e wiliwili ai i ke keleawe silika a i ʻole ka hoʻoheheʻe ʻana i luna ma ke kila, ʻaʻohe mea e hoʻomehana ʻia.ʻO ka mahana wela mua no ka hoʻoheheʻe ʻana i ke keleawe maʻemaʻe ma kahi o 450 ° C, a ʻo ka mahana preheating no ka wili keleawe ma kahi o 300 ° C;
4. Pono e hoʻohana i ka wili pōkole pōkole i ka wā wili.I ka wā hoʻoheheʻe multi-layer, pono ka slag ma waena o nā papa
hemo loa;ma hope o ke kuʻi ʻana, e hoʻomaloʻo i ka weld me kahi hāmare poʻo pālahalaha e hoʻomaʻemaʻe i ka palaoa, hoʻopau i ke kaumaha, a hoʻomaikaʻi i ka ikaika a me ka plasticity o ka weld.
