Preferential kub-dip galvanized sawb hlau
Txheej txheem ntau lawm
Phase I
Tag nrho cov coil ntawm sawb hlau yuav tsum tau khaws thiab decontaminated kom ua tiav qhov ci thiab huv si.
Phase II
1.Kub-dip galvanizing: tom qab pickling, nws yog ntxuav los ntawm ammonium chloride los yog zinc chloride aqueous tov los yog ammonium chloride thiab zinc chloride tov aqueous tov tank.Tom qab ntawd nws raug xa mus rau kub dip galvanizing tank rau galvanizing.
2.Kub galvanizing: tom qab pickling, nws yog ntxuav nyob rau hauv lub da dej ntawm ammonium chloride los yog zinc chloride aqueous tov los yog ammonium chloride thiab zinc chloride tov aqueous tov, thiab ces xa mus rau hauv lub galvanizing da dej tom qab nruam annealing rauv rau galvanizing.
3.Direct galvanizing: tom qab pickling, nws raug xa mus rau hauv lub nruam annealing rauv thiab ces mus rau hauv lub galvanizing tank rau galvanizing.
Phase III
Tom qab cov sawb hlau yog galvanized, nws yuav tsum tau coiled thiab muab tso rau hauv cia.Cov txheej txheej galvanized tuaj yeem tsis pub tsawg dua 50g / m2 raws li cov neeg siv khoom xav tau, thiab cov qauv yuav tsum tsis pub tsawg dua 48g / m2.
Galvanized strip steel feem ntau yog siv los ua cov kav hlau, xws li cov kav dej hauv tsev cog khoom, cov kav dej haus, cov kav dej cua sov, thiab cov kav dej xa hluav taws xob;Nws tseem tuaj yeem siv rau hauv kev tsim kho, kev lag luam teeb, tsheb, kev ua liaj ua teb, tsiaj txhu, nuv ntses, kev lag luam thiab lwm yam lag luam.
Galvanized steel sawb qhia tau hais tias kev tsim kho kev lag luam feem ntau yog siv los tsim kev lag luam los tiv thaiv kev lag luam thiab pej xeem lub ru tsev panels, daim phiaj ru tsev, thiab lwm yam;Lub teeb kev lag luam siv nws los tsim cov khoom siv hauv tsev, cov chimneys hauv tsev, cov khoom siv hauv chav ua noj, thiab lwm yam, thiab kev lag luam tsheb feem ntau siv nws los tsim cov khoom tiv thaiv corrosion ntawm tsheb, thiab lwm yam;Kev ua liaj ua teb, tsiaj txhu thiab kev nuv ntses yog siv los ua zaub mov thiab kev thauj mus los, cov cuab yeej ua khoom khov rau cov nqaij thiab cov khoom hauv dej, thiab lwm yam;Kev lag luam, nws tsuas yog siv los ua kev khaws cia, kev thauj mus los thiab ntim khoom ntawm cov ntaub ntawv;steel qauv sandalwood bar (C, Z zoo li tus hlau);Lub teeb steel keel, qab nthab keel, thiab lwm yam.
Tso cai thickness sib txawv
| Yam tsawg kawg nkaus yield zogMpa | Nominal thicknessmm | Tso cai thickness sib txawv | Qhov tseebPT.A | High-precisionPT.B | Nominal dav | ≤1200 | > 1200-≤1500 | > 1500 | ≤1200 | 1200-≤1500 |
| <280 | s0,40 ua | ± 0.05 hli | ± 0.06 | ± 0.03 hli | ± 0.04 hli | |||||
| > 0.40-0.60 | ± 0.06 | ± 0.07 hli | ± 0.08 hli | ± 0.04 hli | ± 0.05 hli | |||||
| > 0.60-0.80 | ± 0.07 hli | ± 0.08 hli | ± 0.09 hli | ± 0.05 hli | ± 0.06 | |||||
| > 0.80-1.00 Nws | ± 0.08 hli | ± 0.09 hli | ± 0.10 | ± 0.06 | ± 0.07 hli | |||||
| > 1.00-1.20 | ± 0.09 hli | ± 0.10 | ± 0.11 | ± 0.07 hli | ± 0.08 hli | |||||
| > 1.20-1.60 | ± 0.11 | ± 0.12 | ± 0.12 | ± 0.08 hli | ± 0.09 hli | |||||
| > 1.60-2.00 Nws | ± 0.13 | ± 0.14 | ± 0.14 | ± 0.09 hli | ± 0.10 | |||||
| > 2.00-2.50 | ± 0.15 | ± 0.16 | ± 0.16 | ± 0.11 | ± 0.12 | |||||
| > 2.50-3.00 Nws | ± 0.17 | ± 0.18 | ± 0.18 | ± 0.12 | ± 0.13 | |||||
| ≥280 | ≤ 0.40 | ± 0.06 | ± 0.07 hli | ± 0.04 hli | ± 0.05 hli | |||||
| > 0.40-0.60 | ± 0.07 hli | ± 0.08 hli | ± 0.09 hli | ± 0.05 hli | ± 0.06 | |||||
| > 0.60-0.80 | ± 0.08 hli | ± 0.09 hli | ± 0.11 | ± 0.06 | ± 0.06 | |||||
| > 0.80-1.00 Nws | ± 0.09 hli | ± 0.11 | ± 0.12 | ± 0.07 hli | ± 0.08 hli | |||||
| > 1.00-1.20 | ± 0.11 | ± 0.12 | ± 0.13 | ± 0.08 hli | ± 0.09 hli | |||||
| > 1.20-1.60 | ± 0.13 | ± 0.14 | ± 0.14 | ± 0.09 hli | ± 0.11 | |||||
| > 1.60-2.00 Nws | ± 0.15 | ± 0.17 | ± 0.17 | ± 0.11 | ± 0.12 | |||||
| > 2.00-2.50 | ± 0.18 | ± 0.19 | ± 0.19 | ± 0.13 | ± 0.14 | |||||
| > 2.50-3.00 Nws | ± 0.20 | ± 0.21 | ± 0.21 | ± 0.14 | ± 0.15 |
| Nominal dav mm | Tso cai dav sib txawv (mm) | Normal precision PW.A | Advanced precision PW.B | Yam tsawg kawg nkaus | Qhov siab tshaj plaws | Yam tsawg kawg nkaus | Qhov siab tshaj plaws |
| 2600-1200 Nws | 0 | +5 | 0 | +2 | |||
| 1200-1500 Nws | 0 | +6 | 0 | +2 | |||
| > 1500 | 0 | +7 | 0 | +3 | |||
| Tso cai sib txawv ntawm qhov ntev | |||||||
| Nominal ntev mm | Tso cai sib txawv ntawm qhov ntev (mm) | Qhov tseeb precision PL.A | Advanced precision PL.B | Yam tsawg kawg nkaus | Qhov siab tshaj plaws | Yam tsawg kawg nkaus | Qhov siab tshaj plaws |
| = 2000 | 0 | +6 | 0 | +3 | |||
| ≥2000 | 0 | Lengthwise 0.3% | 0 | Lengthwise 0.15% | |||
Kev siv ntawm Galvanized Steel Sawb
Galvanized strip steel feem ntau yog siv los ua cov kav hlau, xws li cov kav dej hauv tsev cog khoom, cov kav dej haus, cov kav dej cua sov, thiab cov kav dej xa hluav taws xob;Nws tseem tuaj yeem siv rau hauv kev tsim kho, kev lag luam teeb, tsheb, kev ua liaj ua teb, tsiaj txhu, nuv ntses, kev lag luam thiab lwm yam lag luam.Kev tsim kho kev lag luam feem ntau yog siv los tsim kev lag luam los tiv thaiv corrosive thiab pej xeem lub tsev ru tsev panels, ru tsev daim phiaj, thiab lwm yam;Lub teeb kev lag luam siv nws los tsim cov khoom siv hauv tsev, cov khoom siv hluav taws xob, cov khoom siv hauv tsev, thiab lwm yam, thiab kev lag luam tsheb feem ntau siv nws los tsim cov khoom tiv thaiv corrosion ntawm tsheb, thiab lwm yam;Kev ua liaj ua teb, tsiaj txhu thiab kev nuv ntses yog siv los ua zaub mov thiab kev thauj mus los, cov cuab yeej ua khoom khov rau cov nqaij thiab cov khoom hauv dej, thiab lwm yam;Kev lag luam, nws tsuas yog siv los ua kev khaws cia, kev thauj mus los thiab ntim khoom ntawm cov ntaub ntawv;steel qauv sandalwood bar (C, Z zoo li tus hlau);Lub teeb steel keel, qab nthab keel, thiab lwm yam.
Cov yam ntxwv ntawm galvanized steel sawb: galvanized steel sawb yog ib yam khoom siv raw hu ua (zinc) uas yog coated rau ntev thiab nqaim strip steel phaj ntawm txias dov los yog kub dov.Kub galvanizing muaj qhov zoo ntawm txheej txheej, muaj zog adhesion thiab lub neej ua haujlwm ntev.Lub complex lub cev thiab tshuaj tiv thaiv ntawm kub-dip galvanized steel yeeb nkab substrate thiab molten plating tov tsim ib tug corrosion-resistant zinc-hlau alloy txheej nrog compact qauv.Cov txheej txheej alloy yog ua ke nrog cov ntshiab zin c txheej thiab cov sawb steel substrate.Yog li ntawd, nws muaj zog corrosion kuj.Cov ntsiab lus zoo ntawm galvanized sawb steel yuav tsum du nyob rau hauv tsos, tsis muaj zinc nodules thiab burrs, thiab nyiaj dawb;Lub thickness yog tswj tau, ntawm 5-107 μ Ib qho kev xaiv hauv m;Tsis muaj hydrogen embrittlement thiab kub txaus ntshai, uas tuaj yeem ua kom ntseeg tau tias cov khoom siv hluav taws xob tsis hloov pauv;Nws tuaj yeem hloov qee cov txheej txheem uas xav tau kub galvanizing;Zoo corrosion kuj, nruab nrab ntsev tshuaj tsuag mus txog 240 teev;Etc. Sawb steel, tseem hu ua steel sawb, yog nyob rau hauv 1300mm nyob rau hauv dav, thiab nws ntev yog me ntsis txawv raws li qhov loj ntawm txhua kauj.Cov sawb hlau feem ntau yog muab rau hauv cov coils, uas muaj qhov zoo ntawm qhov siab qhov tseeb, qhov zoo ntawm qhov chaw, ua haujlwm yooj yim thiab txuag cov khoom.
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