1. Dab tsi yog qhov tseem ceeb cuam tshuam rau lub thickness kam rau ua ntawm galvanized coils?
Lub thickness kam rau ua ntawm galvanized coils tsis yog tus nqi ruaj khov; nws yog txiav txim siab los ntawm peb yam:
Cov qauv khoom siv: Cov qauv los ntawm ntau lub teb chaws lossis cheeb tsam (xws li Tuam Tshoj tus GB / T 2518, Europe's EN 10143, thiab Tebchaws Meskas ASTM A653) qhia txog cov kev cai sib txawv.
Nominal thickness: Qhov no yog qhov tseem ceeb tshaj qhov cuam tshuam. Feem ntau hais lus, qhov tuab ntawm cov hlau phaj, qhov loj dua tus nqi ntawm qhov kev tso cai thickness yuam kev.
Cov kev xav tau Precision: Raws li tus qauv qub, feem ntau muaj qhov zoo tib yam thiab siab -precision (siab-qib) qib precision. Cov qib siab -cov qhab nia muaj tseeb muaj cov cheeb tsam ua siab ntev thiab nruj dua.
2. Dab tsi yog qhov kwv yees thickness kam rau ua zoo tib yam precision galvanized coils raws li Suav teb chaws tus qauv (GB/T 2518)?
Raws li Suav lub teb chaws tus qauv GB / T 2518-2019 "Nruam Kub-Dip Galvanized Steel Sheets thiab Strips," qhov zoo tib yam precision (PT.A) kam rau ua rau cov thickness sib txawv yog kwv yees li hauv qab no:
Rau cov ntawv nyias nyias nrog lub thickness ntawm 0.50 hli los yog tsawg dua, lub thickness kam rau ua yog feem ntau tswj nyob rau hauv ± 0.04 hli.
Thaum lub thickness ntau tshaj 0.50 hli tab sis tsis tshaj 0.80 hli, lub thickness kam rau ua yog ± 0.05 hli.
Thaum lub thickness nce ntxiv, nyob rau hauv thaj tsam ntawm 0.80 hli mus rau 1.20 hli, lub thickness kam rau ua yog ± 0.06 hli.
Tsis tas li ntawd, qee cov tub lag luam thiab cov tuam txhab lag luam feem ntau siv cov thickness kam rau ua ntawm ± 0.02 hli los yog ± 0.03 hli hauv lawv cov ntawv tshaj tawm, uas feem ntau sawv cev rau cov qauv khoom siv ntau dua.
3. Yuav ua li cas cov thickness kam rau ua rau galvanized coils tau teev raws li European tus qauv (EN 10143)?
Cov txheej txheem European EN 10143: 2006 yog cov qauv siv European feem ntau siv rau qhov ntev thiab cov duab ua siab ntev ntawm kub -dip galvanized steel los xij. Nws siv rau qhov kub tsis tu ncua -dip galvanized steel nplooj ntawv nrog thicknesses li ntawm 0.20 hli mus rau 6.50 hli.
Cov qauv no tsis siv ib tus nqi kam rau ua, tab sis theej muab cov ncauj lus kom ntxaws tso cai sib txawv raws li qhov sib txawv ntawm qhov sib txawv ntawm nominal thickness thiab dav. Kev txiav txim siab ntawm kev kam rau siab coj mus rau hauv tus account cov khoom thickness, dav, thiab lawv cov kev sib txuas.
4. Dab tsi tshwj xeeb yuav tsum tau ua tus qauv American (ASTM A653) muaj rau thickness kam rau ua ntawm galvanized coils?
Piv rau GB thiab EN cov qauv, ASTM A653 hloov tau yooj yim dua hauv nws cov thickness kam rau ua specifications. Nws tsis muab lub rooj sib txig sib luag, yuav tsum tau ua kom tuab tuab, tab sis hais meej tias cov khoom lag luam yuav tsum tau txiav txim siab raws li cov khoom siv siab ntev ntawm cov khoom txias - dov puag. Qhov no txhais tau hais tias lub thickness kam rau ua ntawm cov khoom kawg feem ntau yuav tsum tau qhia meej meej nyob rau hauv daim ntawv xaj, daim ntawv cog lus, lossis kev pom zoo ntawm tus neeg muag khoom thiab tus neeg yuav khoom.
5. Dhau li ntawm tus qauv kam rau ua, lwm yam kev tshwj xeeb dab tsi hais txog lub thickness kam rau ua ntawm galvanized coils xav tau kev saib xyuas tshwj xeeb?
Cov qauv khoom feem ntau suav nrog cov kev zam tshwj xeeb rau cov uas tsis yog - qhov chaw tus qauv. Piv txwv li, rau steel sawb muab nyob rau hauv coils, lub thickness sib txawv nyob rau hauv kwv yees li 30 meters ntawm lub taub hau thiab tus Tsov tus tw yog tso cai rau 50% loj dua tus qauv tus nqi. Nyob rau tib lub sijhawm, qhov tso cai thickness sib txawv li ntawm kwv yees li 15 meters ntawm qhov chaw vuam ntawm cov hlau sawb kuj yog 60% loj dua li tus qauv tus nqi. Thaum ntsuas steel phaj thickness, cov qauv feem ntau xav kom qhov ntsuas qhov chaw tsawg kawg yog ib qho kev ncua deb (piv txwv li, 25mm) los ntawm ntug ntawm cov hlau sawb kom tsis txhob ntsuas qhov yuam kev tshwm sim los ntawm ntug teebmeem.