1.Dab tsi yog kev sib raug zoo ntawm txheej thickness thiab cua siab tsis kam?
Lub luag haujlwm ntawm txheej txheej: Lub luag haujlwm tseem ceeb ntawm txheej txheej (primer, topcoat, backcoat) ntawm pre-coated steel coils yog muab kev tiv thaiv corrosion, huab cua tsis kam, xim, thiab zoo nkauj. Nws thickness yog nyias nyias (tseem nyob rau hauv micrometers, 1 millimeters=1000 micrometers), thiab nws cov neeg kho tshuab lub zog yog negligible nyob rau hauv resisting lub enormous stress generated los ntawm cua loads.
Lub cev tseem ceeb tiv thaiv cua siab: Lub zog tiv thaiv cua siab los ntawm "steel phaj substrate" thiab "cov qauv txhawb nqa" tom qab nws. Koj tuaj yeem xav txog ua ntej -coated steel coils li "sandwich," qhov twg cov txheej tsuas yog txheej txheej nyias ntawm "pigment" lossis "cling film," thiab cov khoom siv tiag tiag -cov kabmob yog lub puab "cov ntawv hlau" (substrate) thiab tom qab "skeleton" (purlins, thav duab).
2.Dab tsi cuam tshuam rau cov khoom siv hluav taws xob ntawm steel phaj substrates muaj rau cua siab tsis kam?
Substrate thickness: Qhov no yog qhov tseem ceeb tshaj plaws. Nws feem ntau yog ntsuas hauv millimeters (mm), xws li 0.5mm, 0.8mm, thiab lwm yam. Qhov ntau dua qhov tuab, qhov ntau dua lub sijhawm ntawm inertia ntawm tus ntoo khaub lig-section, thiab qhov muaj zog tiv thaiv kev khoov thiab deformation.
Steel yield zog: Qhov no yog hais txog lub zog ntawm cov khoom nws tus kheej, xws li Q235, Q345, G550 (yield zog 550MPa), thiab lwm yam. High-lub zog steel tuaj yeem tiv taus ntau dua ntawm tib lub thickness.
Substrate hom: Kub-dip galvanized (GI), aluminized zinc (AZ), thiab lwm yam, feem ntau cuam tshuam rau corrosion kuj, thiab tseem muaj kev cuam tshuam me ntsis ntawm lub zog (tus qauv lub zog ntawm cov ntawv hlau txawv nyob ntawm cov txheej).
3.Dab tsi yog qhov cuam tshuam ntawm lub phaj tsim thiab tus ntoo khaub lig-sectional duab ntawm cua siab tsis kam?
Wave qhov siab thiab tav qhov siab: Daim ntawv profiled (xws li, siab-wave sheet, qis-wave sheet) muaj qhov sib txawv -sectional zog. Qhov siab ntawm qhov siab tuaj yeem ua rau cov ntu ntu ntawm daim ntawv, yog li muab kev khoov muaj zog thiab compressive zog. Qhov no zoo ib yam li folding ib daim ntawv tiaj tus rau hauv daim ntawv corrugated, uas ua rau nws nce siab heev -cov kabmob muaj peev xwm.
Rib density and shape: Denserly designed, scientifically sound reinforcing ribs can effectively distribute stress and prevent localized deformation.
4.Dab tsi yog qhov tsis muaj zog, tsis muaj kev sib raug zoo ntawm cov txheej thickness thiab cua siab tsis kam?
Kev Tiv Thaiv Corrosion: Txaus siab thiab siab - cov txheej txheem zoo (xws li siab - kev ua tau zoo topcoat + tuab - coated substrate) tuaj yeem tiv thaiv cov hlau substrate los ntawm xeb rau lub sijhawm ntev. Thaum lub substrate thins vim corrosion los yog tsim cov pits xeb, nws cov load zoo -cov kabmob hla-section txo, thiab nws cov khoom siv kho tshuab (lub zog thiab nruj) poob rau lub sijhawm, yog li cuam tshuam nws thawj zaug cua siab.
Yog li ntawd, nyob rau hauv ib puag ncig corrosive heev (xws li cov ntug dej hiav txwv thiab thaj chaw muaj kev lag luam), xaiv qhov corrosion ntau dua -cov txheej txheem tiv thaiv (xws li cov txheej tuab + PVDF topcoat) yog qhov tseem ceeb los xyuas kom meej tias lub substrate cov cuab yeej cuab tam tsis degrade vim corrosion thoob plaws hauv lub tsev tag nrho lub neej, yog li tswj nws lub siab ntev-.
5.Yuav ua li cas txiav txim siab qhov tseem ceeb tsis?
Substrate khoom thiab thickness: piv txwv li, "Aluminized zinc-plated steel ntawv AZ150, substrate thickness 0.8mm".
Lub zog hlau: piv txwv li, "Yield zog Ntau dua lossis sib npaug rau 550MPa".
Phaj hom thiab tav qhov siab: piv txwv li, "Lub kaum ntse ntse- lub duav hom III-420, tav qhov siab 68mm".
Purlin spacing tsim: piv txwv li, "Ntau tshaj purlin spacing 1.5m".
Txheej txheej txheej txheej xaiv: txheej thickness (piv txwv li, "Ob lub tsho tiv no thiab ob lub ci rau pem hauv ntej, topcoat thickness Ntau dua los yog sib npaug ntawm 20μm") thiab hom (xws li, "PVDF fluorocarbon txheej") yuav tsum tau txiav txim siab raws li qhov project's corrosion ib puag ncig, xim durability yuav tsum, thiab tsim kev pab cuam lub neej, thiab yuav tsum tau kho nyias los ntawm kev ntsuas cua.