Khoom Description
Thaum xaiv cov khoom siv hlau coated rau kev tsim kho, cov khoom siv hauv tsev, lossis cov haujlwm ua lag luam, ob qib feem ntau cuam tshuam cov neeg yuav khoom: DC51D + AZ (galvalume steel) thiab DX51D + Z (galvanized steel). Thaum ob qho tib si kub-dip coated steel khoom nrog corrosion kuj, lawv sib txawv heev nyob rau hauv txheej txheej, kev ua tau zoo, kev siv, thiab nqi-effectiveness. Kev nkag siab txog qhov sib txawv no yog qhov tseem ceeb rau kev xaiv cov khoom tsim nyog rau koj qhov project- zam kev siv nyiaj ntau dhau ntawm kev ua haujlwm tsis tsim nyog lossis cuam tshuam txog kev ua haujlwm ntev. Hauv phau ntawv qhia no, peb yuav muab piv rau DC51D + AZ thiab DX51D + Z los ntawm txhua lub kaum ntse ntse, suav nrog qib txhais, txheej txheej, kev ua haujlwm txhua yam, qhov zoo, kev siv, thiab tus nqi. Thaum kawg, koj yuav muaj daim duab meej meej ntawm qib twg haum rau koj cov kev xav tau tshwj xeeb thiab npaj txhij mus cuag rau cov lus hais.
1. Core txhais: Dab tsi yog DC51D + AZ thiab DX51D + Z?
Ua ntej dhia mus rau hauv kev sib piv, nws yog ib qho tseem ceeb uas yuav tsum txiav txim siab qib qib ntawm cov khoom siv, raws li txhua tsab ntawv thiab tus lej qhia cov ntaub ntawv tseem ceeb ntawm lawv cov substrate, dov lub xeev, thiab txheej txheej hom - yam uas cuam tshuam ncaj qha rau lawv cov kev ua tau zoo.
1.1 DC51D + AZ (Galvalume hlau)
DC51D + AZ yog ibkub-dip 55% aluminium-zinc alloy coated steel qibUa raws li European tus qauv EN 10346. Cia peb rhuav tshem nws lub npe:
DC: Qhia tau tias txias- ua cov hlau tiaj tus, qhov "D" sawv cev rau kev sib sau txias thiab "C" qhia tias lub substrate nyob rau hauv qhov txias -rolled xeev- kom ntseeg tau cov tuab tuab thiab zoo heev formability.
51: Cov qib steel qib serial tooj, sawv cev rau kev nkag- theem formability (cov lej siab dua txhais tau tias zoo dua formability), ua rau nws haum rau feem ntau mob khaub thuas- txheej txheem xws li dabtsi yog khoov thiab stamping.
D: Hais txog cov txheej txheem kub-dip txheej, uas ua kom cov txhuas-zinc alloy adheres tusyees rau cov hlau substrate.
AZ: Taw qhia txog 55% aluminium-zinc alloy txheej (55% Al, 43.5% Zn, 1.5% Si los ntawm qhov hnyav)- cov yam ntxwv tseem ceeb uas muab kev tiv thaiv corrosion zoo dua piv rau cov tsoos galvanized steel.
DC51D + AZ yog qhov kev xaiv zoo tshaj plaws coated steel, tsim rau cov ntawv thov uas xav tau ntev - lub sijhawm ua haujlwm ntev thiab ua haujlwm rau qhov chaw hnyav. Nws txias -rolled substrate ua kom zoo ib yam thiab zoo heev processability, ua rau nws yog ib tug nrov xaiv rau siab -xav tau tej yaam num.
1.2 DX51D + Z Galvanized hlau
DX51D+Z yog ibkub-dip ntshiab zinc coated steel qib, kuj ua raws li EN 10346, thiab ib qho ntawm cov khoom siv coated steel ntau tshaj plaws thoob ntiaj teb. Nws lub npe lov raws li hauv qab no:
DX: Kuj tseem qhia tau tias txias- ua cov hlau tiaj tus, tab sis "X" txhais tau hais tias tsis muaj lub xeev dov- txhais tau tias cov substrate yuav muaj kev hloov me ntsis hauv cov txheej txheem dov, txawm hais tias nws tseem tuav tau zoo formability rau kev siv.
51: Zoo ib yam li DC51D + AZ, tus lej xov tooj sawv cev rau kev nkag - theem formability, haum rau cov qauv txias- daim ntawv thov.
D: Qhia txog kub-dip txheej, kom ntseeg tau tias cov zinc txheej ntshiab npog lub substrate uniformly.
Z: Stands rau cov zinc txheej ntshiab- muaj 99.9% cov zinc ntshiab, uas muab kev tiv thaiv corrosion yooj yim los ntawm kev txi tus cwj pwm anode.
DX51D+Z yog tus nqi- siv tau, siv tau yooj yim, nyiam rau nws txoj kev yooj yim, cov txheej txheem ntau lawm, thiab tsim nyog rau qhov chaw nyob sab hauv tsev lossis sab nraum zoov. Nws yog ib qho tseem ceeb hauv kev lag luam rau ntau xyoo vim nws qhov sib npaug ntawm kev ua tau zoo thiab kev them taus.
2. Qhov txawv tseem ceeb 1: Txheej Txheej & Corrosion Resistance
Qhov tseem ceeb tshaj qhov sib txawv ntawm DC51D + AZ thiab DX51D + Z yog nyob rau hauv lawv cov txheej txheem txheej, uas ncaj qha txiav txim siab lawv cov corrosion kuj-ib qho tseem ceeb tshaj plaws kev ua tau zoo rau cov hlau coated. Hauv qab no yog cov ncauj lus kom ntxaws sib piv ntawm lawv cov txheej txheem txheej thiab corrosion kuj.
2.1 Txheej Txheej
|
Qib |
Txheej hom |
Lub ntsiab lus |
Txheej Txheem Txheej Nyhav |
Txheej Thickness |
|---|---|---|---|---|
|
55% Aluminium-Zinc Alloy |
55% Al, 43.5% Zn, 1.5% Si |
AZ120 (120 g/m²), AZ150 (150 g/m²), AZ200 (200 g/m²) (ob npaug-sab tag nrho) |
16-27 μm (ob npaug -sab tag nrho) |
|
|
DX51D+Z |
Ntshiab Zinc |
99.9% ZPO |
Z100 (100 g/m²), Z140 (140 g/m²), Z275 (275 g/m²) (ob npaug-sab tag nrho) |
14-39 μm (ob npaug -sab tag nrho) |
2.2 Corrosion Resistance Mechanism & Performance
Ob qib siv cov txheej txheem tiv thaiv corrosion sib txawv, ua rau muaj qhov sib txawv tseem ceeb hauv kev pab cuam lub neej thiab kev ua haujlwm nyob rau hauv ib puag ncig hnyav:
DC51D + AZ (Galvalume): Muabkev tiv thaiv dual: Cov ntaub ntawv kev ua tau zoo: DC51D + AZ tuaj yeem tiv taus ntau dua lossis sib npaug li 1000 teev ntawm nruab nrab ntsev tshuaj tsuag tshuaj ntsuam (NSS), nrog rau lub neej kev pab ntawm 25+ xyoo nyob rau hauv huab cua puag ncig thiab 20+ xyoo nyob rau hauv ntug dej hiav txwv / kev lag luam cheeb tsam-2-6 lub sij hawm ntev dua DX51D + Z.
Aluminum barrier effect: The aluminum in the coating forms a dense, stable aluminum oxide (Al₂O₃) film on the surface, effectively blocking moisture, oxygen, and corrosive substances from reaching the steel substrate.
Zinc sacrificial tiv thaiv: Yog hais tias lub txheej yog khawb los yog puas, zinc nyob rau hauv lub alloy ua raws li ib tug sacrificial anode, corroding ua ntej los tiv thaiv cov hlau substrate los ntawm xeb.
DX51D + Z (galvanized): Relies ib leegzinc sacrificial tiv thaiv: Cov ntaub ntawv kev ua tau zoo: DX51D + Z feem ntau tiv taus 200-500 teev ntawm NSS kuaj, nrog rau lub neej kev pab ntawm 5-15 xyoo nyob rau hauv atmospheric ib puag ncig thiab tsuas yog 3-8 xyoo nyob rau hauv ntug dej hiav txwv / chaw lag luam. Nws yuav tsum tau saib xyuas ntau zaus thiab hloov pauv hauv cov xwm txheej hnyav.
Cov zinc txheej ntshiab corrodes nyiam los tiv thaiv cov hlau substrate, tab sis nws tsis tsim cov yeeb yaj kiab ntom ntom zoo li txhuas. Thaum raug dej los yog ntsev, zinc oxidizes rau "dawb xeb," uas maj mam peels tawm lub sij hawm.
3. Qhov txawv ntawm qhov tseem ceeb 2: Cov khoom siv tshuab
Ob lub DC51D + AZ thiab DX51D + Z yog tsim los rau txias- daim ntawv thov, tab sis lawv cov khoom siv kho tshuab (yield zog, tensile zog, elongation) txawv me ntsis vim variations ntawm substrate dov lub xeev thiab txheej txheej. Cov kev sib txawv no cuam tshuam rau lawv cov txheej txheem thiab tsim nyog rau cov txheej txheem sib txawv.
|
Mechanical Property |
DC51D + AZ (Galvalume) |
DX51D + Z (galvanized) |
Ntsiab Lus |
|---|---|---|---|
|
Yield zog (Rp0.2) |
140-300 MPa |
140-300 MPa |
Zoo sib xws; ob qho tib si ua tau raws li kev nkag mus rau - theem txias - tsim cov cai |
|
Tensile zog (Rm) |
270-500 MPa |
270-500 MPa |
Ua raws li EN 10346 tus qauv rau qib 51 steel |
|
Elongation (A80) |
Ntau dua lossis sib npaug li 26% |
Ntau dua lossis sib npaug li 22% |
DC51D + AZ muaj ductility zoo dua, ua rau nws tsim nyog rau txoj kev khoov / stamping yam tsis muaj txheej txheej |
|
Txheej Adhesion |
Zoo heev (tsis muaj tev tom qab 180℃khoov, khoov vojvoog=1 × thickness) |
Zoo (tsis muaj tev tom qab 180℃khoov, khoov vojvoog=1-2 × thickness) |
DC51D + AZ's alloy txheej bonds nruj dua rau qhov txias -rolled substrate |
|
Weldability |
Zoo (tshaj nrog MIG / TIG welding; qhov cua zoo pom zoo kom tsis txhob muaj hluav taws xob txhuas) |
Zoo heev (yooj yim rau weld dua galvalume; tsawg dua fume tiam) |
DX51D + Z yog qhov zoo dua rau cov haujlwm uas xav tau kev vuam dav |
Zuag qhia tag nrho, DC51D + AZ muaj me ntsis zoo dua formability thiab txheej adhesion, ua rau nws haum rau complex txheej txheem (xws li, sib sib zog nqus nqus, yob txoj kev rau vov tsev panels). DX51D + Z, thaum me ntsis ductile, muaj zoo weldability, ua rau nws zoo tagnrho rau tej yaam num uas nquag welding yuav tsum (xws li, steel thav ntawv, ntim).
4. Qhov txawv tseem ceeb 3: Kev Tiv Thaiv Kub Kub & Kev Ua Haujlwm Ntxiv
Tshaj li corrosion kuj thiab cov khoom siv kho tshuab, DC51D + AZ thiab DX51D + Z sib txawv hauv kev ua haujlwm kub thiab lwm yam nqi - ntxiv kev ua tau zoo, uas nthuav dav lawv daim ntawv thov nyob rau hauv kev lag luam sib txawv.
4.1 Kub Resistant
DC51D + AZ: Excels nyob rau hauv siab -kub ib puag ncig. Nws tuaj yeem tiv taus qhov kub thiab txias ntawm 315℃thiab qhov kub tsis sib xws ntawm 350℃yam tsis muaj oxidation, discoloration, los yog txheej txheej. Cov khoom siv txhuas hauv txheej muab kev ruaj ntseg zoo heev, ua rau nws zoo tagnrho rau siab - cov ntawv thov kub xws li lub qhov cub plhaub, lub qhov cub, qhov hluav taws xob, thiab lub hnub ci vaj huam sib luag txhawb nqa.
DX51D+Z: Muaj kev tiv thaiv tshav kub tsawg. Nws tsuas tuaj yeem tiv taus qhov kub thiab txias mus txog 200 degree; Tsis tas li ntawd, zinc txheej yuav oxidize sai, tig dub, thiab tev tawm. Nws tsis haum rau siab - daim ntawv thov kub thiab feem ntau yog siv nyob rau hauv ib puag ncig kub.
4.2 Solar Reflectivity
DC51D + AZ muaj lub hnub ci pom kev ntawm ~ 80%, uas pab txo cov nqi cua txias hauv tsev los ntawm 20-30% thaum siv cov vov tsev lossis phab ntsa. Lub zog no-txuag feature ua rau nws yog qhov kev xaiv nrov rau cov phiaj xwm vaj tsev ntsuab. Hauv qhov sib piv, DX51D+Z muaj lub hnub ci qis dua (~60%), muab lub zog tsawg kawg nkaus -txuag cov txiaj ntsig.
4.3 Xim Adhesion
Ob qib tuaj yeem pleev xim rau, tab sis DC51D + AZ muaj cov xim pleev xim zoo dua vim nws cov txheej txheej ntxhib, uas tso cai rau cov xim sib txuas kom nruj dua. Qhov no ua rau nws yog ib qho zoo tagnrho substrate rau prepainted steel (PPGL) nrog ntev - xim tuav ntev. DX51D+Z kuj muaj cov xim zoo adhesion tab sis tej zaum yuav xav tau kev kho deg ntxiv kom pom cov txiaj ntsig hauv siab -xav tau kev zoo nkauj.
5. Qhov Tseem Ceeb Qhov txawv 4: Cov ntawv thov
Vim lawv qhov kev ua tau zoo sib txawv, DC51D + AZ thiab DX51D + Z yog haum rau kev siv sib txawv. Xaiv cov qib zoo raws li koj qhov project qhov chaw ib puag ncig thiab cov kev xav tau yuav ua kom muaj kev ruaj khov thiab raug nqi - ua tau zoo.
5.1 DC51D + AZ (Galvalume Steel) Daim ntawv thov
DC51D + AZ yog qhov zoo tagnrho rausab nraum zoov, hnyav, lossis siab - ib puag ncig kubqhov twg ntev kev pab cuam lub neej thiab corrosion kuj tseem ceeb heev. Cov ntawv thov uas muaj xws li:
Kev tsim kho: ru tsev / phab ntsa panels (chaw nyob, kev lag luam, cov tsev lag luam), PV mounting brackets, kev txhawb nqa hnub ci vaj huam sib luag, cov kav dej (cov ntug dej hiav txwv / kev lag luam)
Cov Khoom Siv Hauv Tsev: Lub qhov cub plhaub, lub tshuab tso pa, cua txias sab nraum zoov (siab-cov khoom kub)
Cov Khoom Siv Khoom Siv: Cov kav dej phwj tuaj, siab - cov kav dej kub, cov tshuab ua tshuab
Agricultural Machinery: Barns, silos, cov khoom siv sab nraum zoov (tshwj xeeb rau huab cua)
5.2 DX51D + Z (Galvanized Steel) Daim ntawv thov
DX51D + Z yog haum raunyob sab hauv tsev lossis sab nraum zoov ib puag ncigqhov twg tus nqi -kev ua tau zoo yog qhov tseem ceeb thiab cov kev cai tiv thaiv corrosion yog nruab nrab. Cov ntawv thov uas muaj xws li:
Kev tsim kho: Sab hauv steel thav duab, purlins (ib puag ncig me me), tsis yog - ntug hiav txwv vov tsev / phab ntsa vaj huam sib luag
Cov Khoom Siv Hauv Tsev: Lub tub yees rov qab vaj huam sib luag, tshuab ntxhua khaub ncaws, khoom siv hluav taws xob (siv sab hauv tsev)
Automotive: Chassis qhov chaw, pa mufflers (tsis yog - siab - qhov chaw kub)
Khoom Siv Txhua Hnub: Hlau rooj tog, txee, guardrails, qhov rooj ncej (sab hauv tsev lossis luv luv- siv sab nraum zoov)
6. Qhov Tseem Ceeb Qhov txawv 5: Tus Nqi & Nqis -Kev Ua Tau Zoo
Tus nqi yog qhov tseem ceeb tshaj plaws rau feem ntau cov haujlwm, thiab thaum DX51D + Z muaj tus nqi qis dua, DC51D + AZ muaj qhov zoo dua nyob rau lub sijhawm ntev -tus nqi- ua tau zoo vim nws lub neej ua haujlwm ntev dua thiab cov nqi kho mob qis dua. Hauv qab no yog cov ncauj lus kom ntxaws sib piv:
|
Nqi Factor |
DC51D + AZ (Galvalume) |
DX51D + Z (galvanized) |
|---|---|---|
|
Tus nqi pib yuav khoom |
10-15% siab dua DX51D + Z (vim cov ntsiab lus txhuas thiab cov txheej txheem ntau lawm) |
Tsawg dua (cov txheej txheem tsim khoom, tus nqi raw khoom qis) |
|
Tus nqi kho mob |
Tsawg (25+ xyoo kev pab cuam lub neej, tsis muaj kev hloov ntau zaus lossis los tiv thaiv- kev kho corrosion) |
Siab (5-15 xyoo kev pab cuam lub neej, yuav tsum tau tu tsis tu ncua, repainting, los yog hloov) |
|
Tag Nrho Lub Neej -Cycle Cost |
58% qis dua DX51D + Z (vim lub neej ua haujlwm ntev thiab kev saib xyuas qis) |
Siab dua (hloov hloov thiab kho ntxiv raws sijhawm) |
Rau luv luv -cov haujlwm ua haujlwm lossis cov ntawv thov sab hauv tsev uas muaj kev pheej hmoo corrosion tsawg, DX51D + Z yog tus nqi ntau dua- pib ua haujlwm zoo. Rau ntev- tej yaam num, kev siv sab nraum zoov, lossis ib puag ncig hnyav, DC51D + AZ yog qhov kev xaiv zoo dua- nws cov nqi pib siab dua yog offset los ntawm ntau xyoo ntawm kev ua tau zoo thiab kev saib xyuas tsawg.
Cov lus nug nquag nug (FAQ)
Q1: DC51D + AZ puas tuaj yeem siv rau hauv thaj chaw ntug dej hiav txwv? Puas yog nws zoo dua DX51D + Z?
A: Yog, DC51D + AZ yog qhov zoo tshaj plaws rau cov ntug dej hiav txwv. Nws 55% txhuas-zinc txheej muab 2-6 npaug zoo corrosion kuj dua li DX51D + Z, nrog rau kev pab cuam lub neej ntawm 20+ xyoo nyob rau hauv ntug dej hiav txwv ib puag ncig- ntev dua DX51D + Z lub 3-8 xyoo. Nws yog qhov kev xaiv zoo tshaj plaws rau cov phiaj xwm ntug dej hiav txwv.
Q2: Qhov txawv ntawm DC51D + AZ thiab DX51D + AZ yog dab tsi? Lawv puas tuaj yeem hloov tau ib leeg?
A: Qhov txawv tsuas yog lub substrate dov lub xeev: DC51D + AZ muaj ib tug txias - dov substrate (C), thaum DX51D + AZ muaj ib tug unspecified dov lub xeev (X). DC51D + AZ muaj me ntsis zoo dua formability thiab thickness uniformity, tab sis lawv yuav siv interchangeably nyob rau hauv feem ntau daim ntaub ntawv. Txawm li cas los xij, rau cov txheej txheem sib sau ua ke, DC51D + AZ nyiam dua.
Q3: Puas yog DX51D + Z yooj yim dua ua dua DC51D + AZ?
A: Nws nyob ntawm tus txheej txheem. DX51D + Z yog yooj yim rau welding (tsawg fume tiam, yooj yim welding tsis), thaum DC51D + AZ muaj zoo formability (bending, stamping) thiab txheej adhesion, ua rau nws yooj yim rau txheej txheem rau hauv complex duab yam tsis muaj txheej txheej.
Q4: Qib twg yog qhov tsim nyog rau prepainted steel (PPGL)?
A: DC51D + AZ yog qhov tsim nyog dua. Nws cov txheej txheej ntxhib muab cov xim pleev xim zoo dua, kom ntseeg tau ntev - xim tuav thiab tiv thaiv corrosion ntxiv. DX51D + Z kuj tseem siv tau rau PPGL tab sis yuav xav tau kev kho deg ntxiv los txhim kho cov xim sib txuas.
Q5: Cov txheej txheem dab tsi muaj rau DC51D + AZ thiab DX51D + Z?
A: Rau DC51D + AZ, txheej txheem txheej hnyav yog AZ120 (120 g / m²), AZ150 (150 g / m²), thiab AZ200 (200 g / m²). Rau DX51D + Z, tus qauv xaiv yog Z100 (100 g / m²), Z140 (140 g / m²), thiab Z275 (275 g / m²). Kev cai txheej hnyav yog muaj rau ob qib raws li qhov yuav tsum tau ua.