1. General Virtability traits
Tsawg cov pa roj carbon sib npaug: S3555555555555555555555555555555555555555jnically muaj cov pa roj carbon sib npaug (cev) ntawm {}}}}} ({} (ni + cu) / 15). Qhov nqi qis no qhia txog kev pheej hmoo tsis txaus ntawm qhov cua txias hauv tshav kub- beluam, ua kom haum rau feem ntau cov vuam txheej txheem.
Kev sib xyaw nrog cov qauv qauv: Nws tuaj yeem welded siv dav siv cov txheej txheem xws liSmig (lo vuam), GMAW (MIG / Mag Vuam), FCAW (Flux -} cored arc vuam), thiabPom (submerged arc vuam)Cov. Preheating yog feem ntau tsis tseem ceeb rau cov ntu nyias (≤ [≤ 32MM) nyob rau hauv ib txwm muaj mob.
2. Cov kev sib tw thiab kev sib tw
Siv tsawg -} kub-}}} Cov txheej txheem tawm tswv yim (piv txwv li pulsed Mig) los txwv kom txwv qhov loj me.
Zam kev ntxhov siab dhau kev cuam tshuam ntau dhau (cia qis dua 250 ° C rau mult-}}}}}}}}}}}}}}} Pass welds).
Kev sivSib txuam Cov Khoom Siv Hluav Taws Xob Hlau(piv txwv li, en 1600: g 3si1 (cu) rau mews, lossis e7018-g rau lo vuam, uas muaj Cu, CR los txhawb PARINE Tsim).
Tshaj tawm -} Weld kev kho mob xws li kev sib tsoo lossis caij nyoog tuaj yeem ua yeeb yaj kiab oxide cov yeeb yaj kiab thoob plaws hauv Weld cheeb tsam.
Xyaum ntxuav cov chaw huv (tshem cov xeb, roj, lossis teev ua ntej vuam).
Siv cov ntaub thaiv npog (piv txwv li, 80% ar + 20}}}
3. Vuam cov lus pom zoo
Preheating: For thick sections (>12 hli) lossis thaum cov huab cua kub nyob hauv qab 0 ° C, preheat rau 80-120 ° C los txo hydrogen {}}}}}}}}}}}}}}}}}}} Qhov tsis muaj kev phom sij.
Muab Too Hlau Xaiv Kev Xaiv Hlau: Ua ntej nthuav tawm huab cua - Cov Khoom Siv Qib Ntsuas kom phim rau ob qho tib si
Post - weld tuav: Zam kev ua kom txias sai sai (piv txwv li, los ntawm dej quenching) raws li qhov no tuaj yeem ua rau lub taub hau. Tso cai qeeb, cua txias xwb. Rau cov ntawv qhia tseem ceeb, kev ntxhov siab - kev pab ntxhua khaub ncaws ntxhua khaub ncaws (550-600 ° c) tuaj yeem siv tau los txo cov kev ntxhov siab.
