Taw qhia rau weathering steel
Weathering steel yog qib steel nrog zoo heev atmospheric corrosion kuj, uas yog ntxiv me me ntawm Cr, Ni, Cu, P thiab lwm yam khoom rau carbon steel los tsim ib tug tiv thaiv txheej nyob rau saum npoo ntawm cov hlau matrix, yog li ua kom qeeb ntxiv. corrosion. Lub atmospheric corrosion kuj ntawm weathering steel yog 2 ~ 8 npaug ntawm cov pa roj carbon zoo tib yam, nrog xeb kuj, ncua kev pab cuam lub neej ntawm cov qauv, thinning thiab noj txo, thiab lwm yam, feem ntau yog siv nyob rau hauv tsheb, txuas hniav, ntim, tsev, yees thiab lwm yam ntev raug rau atmospheric steel qauv.
Q355NH weathering steel kev ua tau zoo
Q355NH belongs rau welded weathering steel
Atmospheric corrosion kuj index
Atmospheric corrosion resistance index (I) yog ib qho tseem ceeb ntsuas ntsuas huab cua tsis kam ntawm cov ntaub ntawv, qhov loj dua qhov Performance index, qhov zoo dua atmospheric corrosion kuj ntawm steel, nws yog feem ntau ntseeg hais tias thaum lub Performance index (I) ≥ 6.0 steel muaj zoo atmospheric. corrosion kuj.
Lub atmospheric corrosion resistance index (I) yog xam raws li nram no:
I=26.01(%Cu)+3.88(%Ni)+1.20(%Cr)+1.49(%Si)+17.28(%P)-7.29(%Ni)-9.10(%Ni)(%P )-33.39(%Cu) 2
Fillet welding (ua ntej slag tshem tawm)
Fillet welding (tom qab slag tshem tawm)
Raws li ib txwm muaj, peb tseem muab koj cov khoom siv vuam zoo thiab cov kev pabcuam!
Post lub sij hawm: Dec-12-2022