Haʻahaʻa Alloy Steel Weld Electrode
J707
GB/T E7015-D2
AWS E10015-D2
Hōʻike: ʻO J707 kahi haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa ikaika ikaika electrode me ka haʻahaʻa-hydrogen sodium coating.E hoʻohana i ka DCEP (direct current electrode positive), a hiki ke wili ʻia ma nā kūlana a pau.I ka wā e pono ai, hiki ke hoʻomaʻamaʻa mua ʻia nā weld ma mua o ka wili ʻana a me ka huhū ma hope o ka welding.
Noi: Hoʻohana nui ʻia no ka wiliwili 15MnMoV, 14MnMoVB, 18MnMoNb a me nā hale kila haʻahaʻa haʻahaʻa.Hiki ke hana i ka hana welded ma lalo o ke ʻano o ka welding a i ʻole ka hoʻoulu ʻana (500 ~ 650 ℃).
ʻO ka hui kemika o ka weld metala(%):
| C | Mn | Si | Mo | S | P |
Hōʻoiaʻiʻo | ≤0.15 | 1.65 ~ 2.00 | ≤0.60 | 0.25 ~ 0.45 | ≤0.035 | ≤0.040 |
Hoʻāʻo ʻia | 0.073 | 1.68 | 0.54 | 0.40 | 0.011 | 0.018 |
Nā waiwai mīkini o ka weld metala:
Mea ho'āʻo | Ka ikaika tensile Mpa | Hua ikaika Mpa | ʻO ka lōʻihi % | Waiwai hopena (J) -30 ℃ |
Hōʻoiaʻiʻo | ≥690 | ≥590 | ≥15 | ≥27 |
Hoʻāʻo ʻia | 720 | 610 | 18.6 | — |
Maʻiʻo hydrogen diffusion o ka metala i waiho ʻia: ≤4.0mL/100g (ʻano glycerin)
X-ray inspection: I ka helu
Manaʻo ʻia i kēia manawa:
(mm) Anawaena lāʻau | 2.5 | 3.2 | 4.0 | 5.0 |
(A) Ke au wiliwili | 60 ~ 100 | 100 ~ 140 | 140 ~ 190 | 190 ~ 250 |
Hoʻolaha:
1. Pono e hoʻomoʻaʻia ka electrode no 1 hola ma 350 ~ 380 ℃ ma mua o ka hana wili;
2. He mea nui e hoʻomaʻemaʻe i ka ʻōpala, ka aila unahi, ka wai, a me nā haumia ma nā ʻāpana wili ma mua o ka wili ʻana;
3. E hoʻohana i ka hana pōkole i ka wā e wili ai.Pono ke ala wiliwili haiki.