Qhov twg zoo dua: PPGI lossis PPGL?
Nyob rau hauv lub ntiaj teb no ntawm niaj hnub kev tsim kho thiab kev tsim, coated steel khoom yog indispensable. Ntawm lawv,PPGI(Pre-Painted Galvanized Hlau) thiabPPGL(Pre-Painted Galvanized Lead) yog ob qho khoom tseem ceeb uas feem ntau ua rau tsis meej pem. Thaum lawv cov npe zoo sib xws, lawv cov khoom, kev siv, thiab kev ua tau zoo sib txawv. Lo lus nug "Qhov twg zoo dua?" tsis muaj ib qho -loj- haum- teb. Nws tag nrho nyob ntawm qhov kev xav tau tshwj xeeb ntawm koj qhov project. Kab lus no yuav rhuav tshem ob qho tib si hauv cov ntsiab lus yooj yim, piav qhia lawv cov kev sib xyaw, qhov muaj zog, qhov tsis muaj zog, thiab cov kev siv zoo tagnrho los pab koj txiav txim siab paub.
Nkag siab cov hauv paus: PPGI thiab PPGL yog dab tsi?
Ua ntej, cia peb txiav txim siab cov acronyms. Ob leeg pib nrog "Pre-Painted," txhais tau tias cov hlau kauj yog pleev xim rau hauv lub Hoobkas-tswj ib puag ncig siv cov txheej txheej txheej ua ntej tsim los ua cov khoom kawg. Cov txheej txheem no ua kom lub cev tsis sib xws, siab - zoo, thiab ua tiav ntev dua piv rau tom qab- pleev xim rau kev tsim kho. Qhov sib txawv tseem ceeb yog nyob rau hauv cov xim hlau substrate hauv qab cov xim.
· PPGI (Pre-Painted Galvanized Steel Chev): Lub hauv paus hlau yog galvanized steel. Qhov no txhais tau hais tias lub txias - dov steel coil tau coated nrog ib txheej ntawm zinc los ntawm cov txheej txheem kub -dip. Cov zinc ua raws li kev txi anode, muab kev tiv thaiv zoo heev rau cov hlau hauv qab. Tom qab ntawd cov xim yog siv rau saum txheej zinc.
· PIB (Ua ntej-Painted Galvalume Steel Chev): Ntawm no, "L" sawv cev rau Galvalume®, cov khoom lag luam tshwj xeeb. Lub substrate tsis yog zinc ntshiab tab sis ib qho kev sib xyaw ntawm kwv yees li 55% txhuas, 43.5% zinc, thiab 1.5% silicon los ntawm qhov hnyav. Qhov kev sib xyaw no, feem ntau hu ua Alu-Zinc lossis AZ150, tsim cov substrate nrog cov khoom tshwj xeeb. Cov xim yog siv rau ntawm no alloy txheej.
Yog li ntawd, lub hauv paus ntawm kev sib piv yog tiag tiag Galvanized (Zinc) vs. Galvalume (Aluminium-Zinc Alloy) ua lub substrate rau pre{2}}painting.
Lub taub hau - mus rau - Lub taub hau sib piv (tsis muaj lub rooj!)
Cia peb tshawb nrhiav lawv cov yam ntxwv ntawm ntau qhov tseem ceeb.
1. Corrosion thiab xeb kuj
Qhov no yog qhov sib txawv tseem ceeb tshaj plaws.
· PPGI: Lub zinc txheej muab kev tiv thaiv nyob rau hauv ob txoj kev: raws li ib tug barrier thiab los ntawm galvanic (sacrificial) ua. Yog hais tias lub txheej yog khawb, zinc yuav corrode ua ntej los tiv thaiv cov hlau. Txawm li cas los xij, zinc corrodes ntawm tus nqi kwv yees. Nyob rau hauv ib puag ncig hnyav (nrog ntug dej hiav txwv, kev lag luam), tus nqi no tuaj yeem siab heev.
· PPGL: Galvalume muaj qhov zoo tshaj qhov ntev - lub sij hawm corrosion kuj. Aluminium, nyob rau hauv lub alloy, tsim ib tug ruaj khov oxide txheej uas ua raws li ib tug robust barrier. Cov zinc tivthaiv tseem muab qee qhov kev tiv thaiv kev txi ntawm kev txiav. Raws li qhov tshwm sim, PPGL feem ntau muab 2 mus rau 4 npaug ntawm kev pabcuam lub neej ntawm PPGI hauv tib qhov chaw. Piv txwv li, PPGL lub ru tsev nyob rau hauv lub nroog ntug hiav txwv dej yuav zoo li ntev dua yam tsis muaj xeb liab qhia ntawm ntug los yog khawb piv rau PPGI lub ru tsev.
2. Thaum tshav kub kub Reflectivity thiab Thermal Resistance
· PPGI: Zinc muaj cov cua kub nruab nrab. PPGI panels yuav ua kom sov hauv qab lub hnub ci hnyav.
· PPGL: Qhov no yog qhov zoo tshaj plaws rau PPGL. Aluminium tivthaiv muab nws siab thermal reflectivity (txog 80% ntawm tshav ntuj). Ib lub tsev nrog PPGL lub ru tsev yuav nyob twj ywm txias nyob rau hauv, txo cov huab cua- cov nqi cua txias. Qhov no ua rau PPGL yog qhov kev xaiv zoo tshaj plaws rau cov tsev khaws khoom, cov chaw tsim khoom, thiab cov tsev nyob hauv huab cua kub. Xav txog nws zoo li hnav lub tsho dawb (PPGL) piv rau lub tsho grey (PPGI) rau hnub tshav ntuj; cov dawb qhia ntau dua kub.
3. Formability thiab Durability
· PPGI: Cov zinc txheej yog mos mos thiab adherent, ua PPGI zoo heev rau cov txheej txheem loj heev xws li sib sib zog nqus nqus los yog yob- ua kom ntse khoov yam tsis muaj txheej txheej flaking. Nws yog ductile heev.
· PPGL: Galvalume txheej yog nyuaj thiab nkig ntau vim yog cov ntsiab lus txhuas. Thaum nws tuav cov txheej txheem vov tsev thiab phab ntsa vaj huam sib luag profile zoo kawg nkaus, nws tuaj yeem raug rau micro- tawg ntawm cov ntse heev, nruj khoov thaum tsim khoom. Qhov no tsis yog ib qho teeb meem rau feem ntau cov ntawv thov tab sis yog qhov tseem ceeb rau qhov nyuaj.
4. Txiav ntug kev tiv thaiv
· PPGI: Muab kev tiv thaiv zoo heev ntawm kev txiav ntug. Cov zinc nthuav tawm nyob ib ncig ntawm cov npoo ntawm cov npoo yuav corrode nyiam, tiv thaiv cov hlau thiab tiv thaiv "kev nkag" ntawm xeb los ntawm ntug.
· PPGL: Txiav ntug kev tiv thaiv yog nws cov txheeb ze tsis muaj zog. Aluminium- nplua nuj thaj chaw hauv cov hlau tsis tshua muaj kev txi ntau dua li cov zinc ntshiab. Thaum cov txheej txheem tseem muab ib qho kev thaiv, corrosion tuaj yeem pib ntawm cov npoo npoo tau yooj yim dua hauv qhov chaw corrosive. Qhov no feem ntau txo qis hauv kev xyaum los ntawm kev siv cov sealants los yog tsim cov sib tshooj ua tib zoo.
5. Kev txiav txim siab nqi
· PPGI: Feem ntau, nws yog tus nqi ntau dua - kev xaiv ua ntej. Cov khoom siv raw (galvanized steel) tsawg dua li Galvalume.
· PPGL: Hais kom tus nqi hwm, feem ntau 10-20% siab dua PPGI, vim yog tus nqi ntawm aluminium alloy. Txawm li cas los xij, qhov kev nqis peev ntau dua no tuaj yeem ua ncaj ncees los ntawm nws txoj kev ua neej ntev dua, muaj kev cuam tshuam los ntawm cov cua sov zoo dua, thiab txo tus nqi kho lub sijhawm.
6. Kev zoo nkauj thiab xim sib haum
Ob leeg PPGI thiab PPGL muaj qhov zoo ib yam li kev zoo nkauj vim tias cov txheej sab saum toj yog tib yam siab - cov xim zoo nkauj (polyester, PVDF, SMP, thiab lwm yam). Cov txheej txheem tha xim yog zoo tib yam rau ob qho tib si substrates. Xim, gloss, thiab kev xaiv tiav yog sib npaug.
Tiag -Cov Piv Txwv Ntiaj Teb: Yuav Siv Qhov Twg?
Xaiv PPGI (Pre-Painted Galvanized Hlau) thaum:
· Nyiaj txiag yog ib qho kev txwv tseem ceeb: luv luv - mus rau - nruab nrab - cov phiaj xwm lub sij hawm los yog qhov twg cov nqi pib tseem ceeb heev.
· Ib puag ncig yog me me: thaj chaw hauv av uas muaj kuab paug tsawg thiab tsis muaj ntsev tsuag.
· Koj xav tau cov ntaub ntawv nyuaj: Rau cov khoom siv, HVAC ducts, qab nthab vuas, los yog qhov chaw uas yuav tsum tau kos duab sib sib zog nqus thiab ntse khoov. Cov vaj huam sib luag sab hauv ntawm lub tshuab ntxhua khaub ncaws lossis lub tshuab cua txias yog cov ntawv siv PPGI classic.
· Txiav ntug yuav raug nthuav tawm thiab tsis muaj kev tiv thaiv: Hauv qee qhov kev siv cov txheej txheem lossis sab hauv uas tsis tau npaj rau kev sib khi.
Xaiv PPGL (Pre-Painted Galvanized Lead/Galvalume) thaum:
· Lub neej ntev thiab kev tiv thaiv corrosion yog qhov tseem ceeb: rau cov vov tsev thiab phab ntsa cladding nyob rau hauv cov cheeb tsam ntawm ntug hiav txwv dej, thaj chaw muaj kev lag luam, lossis thaj chaw uas muaj av noo siab.
· Kev siv hluav taws xob zoo yog lub hom phiaj: Rau kev siv lub ru tsev ntawm cov tsev khaws khoom, cov tsev lag luam, lossis cov tsev nyob uas txo cov cua sov yog qhov tseem ceeb. Lub chaw faib khoom loj nrog lub ru tsev PPGL tuaj yeem pom kev txuag nyiaj ntau ntawm kev ua kom txias.
· Daim ntawv thov yog tus qauv tsev profiles: Rau cov qauv trapezoidal los yog sawv ntsug seam ru tsev nplooj ntawv thiab phab ntsa panels, qhov kev sib sau tsis yog huab.
· Koj tab tom txiav txim siab txog lub neej- tus nqi voj voog: Kev nqis peev ntau dua pib them ntau dua kaum xyoo ntawm cov nqi kho thiab hloov pauv. Lub tsev ua liaj ua teb txhais tau tias yuav kav ntev 40+ xyoo yog tus neeg sib tw muaj zog rau PPGL.
Xaus: Nws yog hais txog Txoj Cai Zoo rau Txoj Haujlwm
Yog li, PPGI lossis PPGL puas zoo dua? Raws li peb tau pom, nws tsis yog hais txog qhov zoo tshaj plaws tab sis hais txog kev tsim nyog.
· Xav txog PPGI raws li kev ua haujlwm ntau yam, kev lag luam. Nws muab txhua yam zoo - nyob ib ncig ntawm kev ua tau zoo ntawm tus nqi zoo, tshwj xeeb tshaj yog qhov xav tau kev hloov pauv. Nws zoo li kev txhim khu kev qha, roj-tseem ceeb tsev neeg lub tsheb- nws tau txais txoj haujlwm ua tiav zoo rau feem ntau cov kev xav tau niaj hnub no.
· Xav txog PPGL yog qhov tshwj xeeb, siab - kev xaiv ua tau zoo. Koj them ntau dua rau nws qhov tshwj xeeb corrosion tsis kam thiab thermal zog hauv ib puag ncig uas xav tau lawv. Nws zoo li lub rugged, tag nrho - tsheb struts tsim los tswj cov xwm txheej hnyav thiab kav ntev mus.
Ua ntej txiav txim siab, ib txwm ntsuas:
1. Ib puag ncig koj cov khoom yuav ntsib.
2. Cov txheej txheem fabrication koom nrog.
3. Koj cov peev nyiaj (thaum pib thiab ntev-lub sijhawm).
4. Lub neej kev cia siab ntawm qhov project.
Los ntawm kev nkag siab qhov sib txawv ntawm qhov tseem ceeb -zinc piv rau aluminium-zinc- koj tuaj yeem txav mus dhau cov lus sau thiab xaiv cov hlau coated uas haum rau koj daim phiaj xwm kom ua tiav. Nyob rau hauv feem ntau xav tau architectural thiab kev lag luam daim ntawv thov, PPGL (Galvalume) nyiam qhov kev xaiv rau nws cov durability, thaum PPGI tseem yog tus yeej ntawm tus nqi -rhiab heev thiab heev - daim ntawv thov. Tham nrog koj tus neeg muab khoom siv thiab xav txog cov xwm txheej tshwj xeeb ntawm koj qhov project los ua qhov kev xaiv zoo tshaj plaws.
