Molybdenum a me Chromium Molybdenum Heat Resistant Steel Weld Electrode
R407
GB/T E6015-B3
AWS A5.5 E9015-B3
Hōʻike: R407 he pearlitic heat-resistant steel electrode me ka haʻahaʻa-hydrogen sodium coating i loaʻa ka 2.5% Cr - 1% Mo. E hoʻohana i ka DCEP (direct current electrode positive) a hiki ke welded ma nā kūlana āpau.Pono e hoʻomaʻamaʻa ʻia ka weldment i 200 ~ 300 ° C ma mua o ke kuʻi ʻana.
Hoʻohana: Hoʻohana ʻia no ka hoʻopili ʻana i nā pipeline kiʻekiʻe-mehana a me ke kaomi kiʻekiʻe me ka mahana hana ma lalo o 550 ° C, nā mīkini kemika synthetic, nā mea hana ʻaila ʻaila, etc.
ʻO ka hui kemika o ka weld metala(%):
| C | Mn | Si | Cr | Mo | S | P |
| 0.05 ~ 0.12 | 0.50 ~ 0.90 | ≤0.50 | 2.00 ~ 2.50 | 0.90 ~ 1.20 | ≤0.030 | ≤0.030 |
Nā waiwai mīkini o ka weld metala:
| Mea ho'āʻo | Ka ikaika tensile Mpa | Hua ikaika Mpa | ʻO ka lōʻihi % | Waiwai hopena (J) Ma'amau Temp. |
| Hōʻoiaʻiʻo | ≥590 | ≥490 | ≥15 | ≥47 |
| Hoʻāʻo ʻia | 600 ~ 680 | ≥500 | 18 ~ 21 |
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:
| Anawaena lāʻau （mm） | 2.5 | 3.2 | 4.0 | 5.0 |
| Ke au wiliwili （A） | 60 ~ 90 | 90 ~ 120 | 140 ~ 180 | 170 ~ 210 |
Hoʻolaha:
1. Pono e hoʻomoʻa ʻia ka electrode no 1 hola ma 350 ℃ ma mua o ka hana wili;
2. He mea nui e hoʻomaʻemaʻe i ka ʻōpala, ka ʻaila unahi, ka wai, a me nā haumia ma nā ʻāpana wili ma mua o ka wili ʻana.
