Molybdenum a me Chromium Molybdenum Heat Resistant Steel Weld Electrode
R306Fe
GB/T E5518-B2
AWS A5.5 E8018-B2
Hōʻike: R306Fe he pearlitic heat-resistant steel electrode me ka pauka hao a me ka haʻahaʻa hydrogen potassium type coating i loaʻa ka 1% Cr - 0.5% Mo. Hiki ke hoʻohana ʻia ʻelua AC a me DC, a hiki ke welded i nā kūlana āpau me ka hana pōkole pōkole.ʻO ka preheating o ka weldment a me ka mahana interlayer he 160 ~ 250 ° C i ka wā wili.
Hoʻohana: Hoʻohana ʻia no ka hoʻopili ʻana o 1%Cr - 0.5%Mo pearlitic heat-resistant steel (e like me 15CrMo), e like me ka paila hoʻomehana ʻana i nā paipu ili me ka mahana hana ma lalo o 550 ° C, nā paipu mahu a me nā moku kaomi me ka mahana hana ma lalo o 520 ° C , etc. Hiki ke ho'ohana 'ia no ka welding o 30CrMnSi hoolei kila.
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 | 1.00 ~ 1.50 | 0.40 ~ 0.65 | ≤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 | ≥540 | ≥440 | ≥47 | ≥27 |
| Hoʻāʻo ʻia | 550 ~ 640 | ≥450 | 20 ~ 28 | 105 ~ 150 |
Maʻiʻo hydrogen diffusion o ka metala i waiho ʻia: ≤6.0mL/100g (ʻano glycerin)
X-ray inspection: I ka helu
Manaʻo ʻia i kēia manawa:
| Anawaena lāʻau （mm） | 3.2 | 4.0 | 5.0 |
| Ke au wiliwili （A） | 100 ~ 130 | 140 ~ 180 | 180 ~ 210 |
Hoʻolaha:
1. Pono e hoʻomoʻa ʻia ka electrode no 1 hola ma kahi o 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.
