Cov qauv rau cov tuab ntawm cov ntawv hlau nyias txawv nyob ntawm seb cov khoom siv, txheej txheem tsim khoom, thiab cov qauv hauv tebchaws. Cov tub ntxhais ntau yam feem ntau yog 0.2 hli txog 4 hli, tab sis cov kev cai tshwj xeeb siv rau kev lag luam thiab cov khoom sib txawv.
1. Cov lus txhais dav dav
Kev lag luam hlau: Cov ntawv nrog lub thickness tsawg dua lossis sib npaug li 4.0 hli feem ntau txhais tau tias yog cov ntawv nyias, suav nrog:
Kub- dov nyias daim ntawv: Qhov tsawg kawg nkaus thickness feem ntau yog 1.2 hli (nruab nrab nruam dov mills), thiab tuaj yeem tsim tawm mus txog 0.28 hli siv cov txheej txheem dov.
Txias- dov nyias cov ntawv: tuaj yeem tswj tau meej txog 0.001 hli, nrog rau qhov ntev dua qhov ntev thiab siab dua qhov tiav, haum rau kev tsim khoom.
Kev lag luam txhuas: Raws li GB / T8005.1-2008, lub thickness ntawm cov ntawv nyias yog txhais raws li 0.20-6.0 hli.
2. Stainless Hlau Sheet Standards
Txias- Rolled Stainless Steel Sheet (GB/T 3280-2015):
Thickness Ntau: 0.10-8.0mm
Precision Classification: Ordinary (PT.A), Siab dua (PT.B), siab tshaj (PT.C)
Permissible Deviation: Piv txwv li, rau 1.0 hli tuab phaj nrog qhov dav ntawm 1000 hli, qhov sib txawv yog ± 0.08 hli.
Kub- Rolled Stainless Steel Sheet (GB/T 4237-2015):
Nyias Phaj Specifications: 3-25 mm
Thick Plate: 25～100 mm, Extra-thick Plate >100 hli
3. Steel Phaj Thickness Classification thiab Tolerances (National Standard)
Raws li "Dimensions, Shape, Weight and Permissible Deviations of Hot-Rolled Steel Phaj thiab Strips":
Thin Steel Phaj:<4 mm (thinnest up to 0.2 mm)
Thick Steel Phaj: 4-60 mm
Ntxiv -Thick Steel Phaj: 60–115 mm
Nominal Size Txoj Cai:
Tib - dov steel phaj: Thickness<30 mm in multiples of 0.5 mm, ≥30 mm in multiples of 1 mm
Hlau strip (nruam dov): Thickness nyob rau hauv ntau ntawm 0.1 hli
4. Lub Hom Phiaj Tshwj Xeeb Nyias Phaj Cov Qauv
Corrugated hlau ntawv (kev tsim kho): Lub hauv paus ntawv yog nyias steel phaj, feem ntau 0.5-1.5 hli tuab, ua raws li GB / T 12755-2008 tus qauv.
Tsis tu ncua kub-dip galvanized nyias daim ntawv: Common thickness 0.3-2.5 hli, siv nyob rau hauv cov khoom siv hauv tsev thiab cov khoom siv hauv tsev, ua raws li GB / T 2518 tus qauv.
5. Kev sib piv thoob ntiaj teb thiab kev lag luam
American ASTM A240: Cov lus qhia zoo sib xws rau 316L stainless hlau nplooj ntawv, dav siv hauv kev ua haujlwm siab corrosion- tiv taus cov ntawv thov xws li cov nroj tsuag tshuaj thiab kev tsim kho ntug hiav txwv.
Kev lees txais tiag tiag: ntsuas siv 0.01mm daws teeb meem micrometer, ntawm qhov deb Ntau dua lossis sib npaug ntawm 40mm ntawm ntug; ib zaug -phaj thickness variation Tsawg dua los yog sib npaug li 50% ntawm qhov tso cai sib txawv.
