1.What yog cov kws kho tshuab ntawm Q355B Galvanized steel?
Txais cov matrix ntawm Q355B: tawm los ntau dua los yog sib npaug zos ntau dua lossis sib npaug nrog 21%, tuaj yeem tiv thaiv nruab nrab, haum rau load-cov kabmob qauv.
2.How corrosion resistant yog 355B galvanized steel?
Lub zinc txheej corrodes nyiam tshaj lub hauv paus steel (tshuaj tua kab mob) thaum sib cais ntawm huab cua thiab ya raws. Nws cov atmospheric corrosion tsis kam yog 5-10 zaug uas ntawm tus q35b, ua nws tshwj xeeb rau ib puag ncig lim dej, sab nraum zoov.
3.Q35555M Yuav ua li cas yog qhov saum npoo ntawm cov hlau galvanized?
Lub thickness ntawm kub - dip galvanizing yog li 5} {}-.
4.What yog kev ua haujlwm ntawm Q355B galvanized steel?
Kev ua khaub ncaws txias xws li shearing, khoov, thiab stamping yuav ua tau (saib xyuas yuav tsum tau them nyiaj rau kev tawm tsam ntau yam uas yuav ua rau tawg ntawm zinc txheej); Vuam yuav tsum tau cov txheej txheem tswj (saib "vuam ceev faj" hauv qab).
5.Qhov kev ceev faj yog dab tsi rau vuam?
Ua ntej Vuam: Zinc Kho
Lub zinc txheej yuav tsum tau muab tshem tawm ntawm thaj chaw weld (qhov zawj thiab 20-30mm thaj chaw ntawm ob sab) los tiv thaiv zinc evaporation, ua rau hws thiab nti.
Txoj Kev Kho Txoj Kev: Kev Sib Tsoom Tshuab Sib Tsoo (Kev Sib Tsoo Nrog Hlau Log), Hydrochloric Acid / sulfuric Cov Tshuaj Tiv Thaiv, Cov Khoom Txwv Tom Qab). Tsis txhob sim "hlawv los ntawm" cov npog zinc ib leeg los ntawm cov cua sov (qhov no yooj yim tawm zinc slag).
Welding method selection: Prefer low-heat-input welding methods to minimize zinc evaporation.
Pom zoo: Cov hluav taws xob vuam (Mig / Mag, siv er50 {}
Siv nrog ceev faj: submerged arc vuam (siab tshav kub {{0} {} {yooj yim tsim tau cov vuam zoo nkauj (tsis haum rau nyias- walled galvanized seem). Vuam Parameter Thaiv
Tam sim no / voltage: qis dua me ntsis uas tau siv rau cov xim q355b ntawm tib tuab tam sim no tuaj yeem txo ntawm 180-160s) los txo cov tswv yim tshav sov.
Vuam ceev: Kev nce nqi hluav taws xob ntxiv (zam lub sijhawm ua kom sov) kom luv lub sijhawm cov zinc tseem nyob hauv qhov siab {}} deb chaw.
Kev thaiv cov roj: Mig vuam siv cov sib xyaw ntawm 80% AR thiab 20% COG rau Kev Tiv Thaiv Kev Tiv Thaiv Kev Tiv Thaiv Kev Tiv Thaiv Kev Tiv Thaiv Kom Yooj Yim.
Post - vuam: anti - Corrosion Recoating
Tom qab vuam, weld seam thiab cua sov -} Cov txheej kub tau raug hlawv) 1}} corrosion recoating kom tiv thaiv cov xeb hauv nroog.
Cov ntaub ntawv recingating: txias - tsuag tsuag xim ntau dua lossis sib npaug ntawm 95% lossis zinc nplua nuj los xyuas kom meej nrog kev sib xyaw nrog thawj zinc txheej.