RAU VUAM VUAMQ460NH Weathering Hlau, xaiv qhov tseebCov hluav taws xob lossis xaimyog qhov tseem ceeb kom phim nws corrosion-resistant yam ntxwv thiab lub zog kho tshuab. Hauv qab no yog cov kev xaiv pom zoo raws li cov qauv haujlwm thoob ntiaj teb thiab cov ntawv thov siv:
1. Cov hlau thaiv cov hlau vuam (smaw) - lo electrodes
AWS E8018-W2
Tsawg-hydrogen, huab cua-resistans electrode.
Ntais ntawv Q460NH'sCU, CR, NIAlloy cov ntsiab lus rau Patina Sib Xws.
En ISO 2560-A: E MOCNI 1-2
European sib npaug, optimized rau huab cua cov hlau.
Cov Nta Tseem Ceeb:
Preheat rau150-200 degree (if thickness >20mm).
Cov hluav taws xob qhuav (khaws rau ntawm 100-150℃kom tsis txhob muaj hydrogen cracking).
2. Roj hlau vuam (GMaw / Mig) - xaim
AWS ER80S-NI1 (e.g., Npe X90lossisBöhler Fox ED 90)
Muaj1% niTxhawm rau txhim kho kev nruj thiab corrosion tsis kam.
En ISO 14341-A: G 89 6 m mn3nicco
European Txuj Hlau Hlau rau Kev Loj Loj Huab Cua Huab Cua.
Tiv Thaiv Roj: SivAr + 20%?rau cov arcs ruaj khov thiab tsawg heev.
3. Flux-cored arc vuam (FCAW) - xov hlau
Aws 81t1-ni1c (e.g., Lincoln Outershield 81ni1)
Kev tiv thaiv tus kheej, ni-hloov cov hlau rau kev teb vuam.
En iso 17632-a: t 55 5 m mn2ni1crmo
Haum rau kev siv sab nraum zoov nrog cov cua tsis zoo.
Yam uas pab: Tsis muaj cov pa roj sab nraud, zoo tagnrho rau cov chaw tsim khoom.
4. Submerged arc vuam (pom) - hlau / flux sib txuas ua ke
Txoj xov tooj: Aws F8A6-EM12K (e.g., Esab ok aurodod 12.64).
Flux: Nruab nrab / cov kab ke flux (e.g., Esab ok flux 10.72).
Tsab ntawv: Yuav tsum muaj qhov ua kom sov sov tawm tswv yim kom tsis txhob muaj taub hau.
5. Tseem ceeb sib xyaw
Corrosion Match: Kom cov chaw ua hlauCU, CR, NIkom tswj xyuas patina sib dhos.
Cov Khoom Siv Neeg Kho Tshuab:
Tensile lub zog ntau dua los yog sib npaug rau 550 MPa, tawm ntau dua lossis sib npaug rau 460 MPa (piv txog Q460NH).
Qhov cuam tshuam nyuaj dua los yog sib npaug rau 47j ntawm -20℃(ib rau 10025-5).
Preheat / Interpass Temp: 150-200 degree (for thickness >20mm).
6. Cov Qauv Siv
Aws A5.1 / A5.5(Lo electrodes).
Aws A5.18 / A5.28(Mig / FCAW cov xov hlau).
En ISO 14341/17632(European xaim).
