Vuam S335J2WP Corten Steel nthuav tawm qhov kev sib tw tshwj xeeb: kev sib koom tes vuam yuav tsum tsis yog tsuas yog muaj zog tab sis kuj tau txais txiaj ntsig ntawm niam txiv hlau lub cim huab cua tiv thaiv thiab ua tau raws li qhov yuav tsum tau muaj cov qib toughness, feem ntau mus rau -20 degree. Txoj cai vuam consumables yog qhov tseem ceeb kom ua tiav qhov no. Phau ntawv no piav qhia cov ntsiab cai tseem ceeb thiab cov kev xaiv tsim nyog.
Lub hom phiaj tseem ceeb: Sib piv Patina
Lub hom phiaj tseem ceeb yog los xyuas kom meej cov hlau weld tsim muaj kev tiv thaiv xeb patina zoo ib yam li lub hauv paus Corten steel. Qhov no yuav tsum tau cov weld cov tshuaj muaj pes tsawg leeg -tshwj xeeb nws cov qib ntawmtooj liab (Cu), chromium (Cr), thiab qee zaum phosphorus (P)-kom dav sib xws ntawm S335J2WP. Cov hlau tsis sib xws tuaj yeem ua rau tsis pom kev, tsis sib xws rusting thiab ceev hauv zos corrosion.
Ob qhov tseem ceeb ntawm cov khoom siv
Rau kev sib koom ua tiav, koj cov hlau muab tub lim yuav tsum hais:
Atmospheric Corrosion Resistance:Los ntawm mirroring lub ntsiab alloying ntsiab.
Tsawg-Tsub Toughness:Txhawm rau kom muaj kev cuam tshuam toughness ntawm -20 degree, weld hlau feem ntau xav tauqis phosphorus ntau ntau thiab sib txawv micro-alloyingpiv rau lub hauv paus hlau, raws li phosphorus tuaj yeem embrittle lub weld.
Pom zoo Welding Consumable Types
Consumables raug cais raws li cov qauv xws li AWS (American Welding Society) lossis EN ISO. Nov yog cov hom tsim nyog tshaj plaws:
Rau Shielded Hlau Arc Vuam (Stick / MMA):
AWS E7018-W2 / EN ISO 960-1: E Mo 1 Ni 1 2 H5:Qhov no yog ib qho kev xaiv heev thiab zoo heev. Qhov "W" qhia txog qib huab cua, nrog rau chemistry (xws li ntxiv Ni rau qhov tawv) tsim kom phim Corten steels thiab muab cov txiaj ntsig zoo ntawm -20 degree.
Rau Gas Hlau Arc Vuam (MIG / MAG):
AWS ER70S-3 (G3Si1) for root passes:Feem ntau siv rau thawj txheej uas dilution los ntawm lub hauv paus hlau yog siab, pab kom ua tiav lub hom phiaj kawg chemistry.
AWS ER80S-G / EN ISO 14341: G Mn3Ni1Cu:Ib tug ntau alloyed khoom hlau. Ntxiv Nickel (Ni) thiab tooj liab (Cu) ncaj qha txhim kho toughness thiab corrosion txuam rau cov khaubncaws sab nraud povtseg thiab cap.
Rau Flux-Cored Arc Vuam (FCAW):
AWS E71T1-W2 / E81T1-Ni1C:Flux-cov xov hlau muaj txiaj ntsig zoo heev. Cov "W" - cov xov hlau tsim tshwj xeeb yog tsim tshwj xeeb rau cov huab cua huab cua thiab feem ntau muaj Ni thiab Cr kom ua tiav cov khoom xav tau.
Qhov tseem ceeb ntawm kev siv vuam kev xav
Ua ntej- Weld Cleaning:Tshem cov nplai zeb los ntawm qhov chaw weld bevel siv kev sib tsoo. Vuam los ntawm cov nplai tuaj yeem ua rau porosity thiab ua rau cov leeg tsis muaj zog.
Tsawg tshav kub input:Siv tswj, nruab nrab cov cua kub nkag los khaws cov khoom metallurgical ntawm ob lub hauv paus hlau thiab cov vuam, tiv thaiv kev loj hlob ntau dhau.
Preheat & Interpass Kub: For thicker sections (typically >30mm) los yog nyob rau hauv qhov chaw txias, ib qho me me preheat ntawm 50-100℃feem ntau pom zoo kom tiv thaiv kev tawg.
Tiv thaiv Weld:Nco ntsoov khaws thaj chaw weld kom qhuav thiab tiv thaiv nws los ntawm cua muaj zog thaum lub sijhawm ua haujlwm.
Tsis txhob pleev xim rau Weld ib leeg:Yog hais tias tus qauv yog meant rau huab cua ib txwm, tsis txhob pleev xim rau lub weld seam. Cia tag nrho cov qauv, nrog rau cov welds, tsim lub patina uniformly.
Kev Pom Zoo Kawg
Rau feem ntau cov qauv siv nrog S335J2WP xav tau -20℃cuam tshuam toughness,AWS E7018-W2 (stick electrode) or AWS E71T1-W2 (flux-cored wire)muaj zog, kev lag luam- qauv xaiv. Nco ntsoov sab laj nrog koj tus neeg siv khoom siv vuam vuam, muab cov khoom siv hauv paus specification thiab cov kev xav tau, thiab thov tus neeg muag khoom cov ntaub ntawv cov ntaub ntawv kom siv tau cov tshuaj muaj pes tsawg leeg thiab cov ntawv pov thawj cuam tshuam qhov tseem ceeb.
