1. Dab tsi yog hom tseem ceeb ntawm ntim ntim rau galvanized coils? Yuav ua li cas xaiv hom tsim nyog raws li kev xav tau?
Hom ntim ntim rau galvanized coils feem ntau yog xaiv raws li qib tiv thaiv xeb, lub sijhawm cia, txoj kev thauj mus los, thiab cov nqi yuav tsum tau ua. Kev lag luam feem ntau faib lawv ua peb hom kev yooj yim: ntim khoom yooj yim, ntim cov qauv, thiab ntim khoom hwm.
Kev ntim khoom yooj yim muaj tus nqi qis dua, tab sis nws txoj kev tiv thaiv ntawm cov coil xaus yog qhov txwv. Nws feem ntau pom zoo rau cov neeg siv nyob rau hauv luv luv - thaj chaw deb xws li Beijing-Tianjin-Tangshan, xav tau cov khoom siv ncaj qha thiab luv heev- lub sij hawm cia (xws li ob peb hnub mus rau ob lub lis piam), lossis rau txias - dov galvanized coils uas tau txias -hardened tom qab parreid zoo li dov los yog parable. overflow ntug. Standard ntim yog haum rau kev warehouses thiab tsheb thauj mus los xav tau kev pab; cov ntaub ntawv ntim khoom yog ua tiav, tab sis qib sealing yog nruab nrab. Cov ntim khoom zoo siv ntau- txheej txheej tiv thaiv kev tiv thaiv, ua ntu zus los ntawm cov khoom ntim khoom ntim khoom, cov ntawv sab hauv lub kaum tiv thaiv, cov ntawv kaum sab nraud, cov ntawv tiv thaiv sab hauv corrugated, daim hlau tiv thaiv sab hauv, thiab daim hlau tiv thaiv sab hauv. Thaum kawg, nws yog kaw radially thiab circumferentially nrog steel strapping. Qhov kev tsim no tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm kev sib xyaw ntawm kev sib xyaw thiab kev thauj mus los hauv hiav txwv, tsis txhob ntim ntau dhau thaum txaus siab rau kev tiv thaiv xeb thiab kev tiv thaiv kev ua haujlwm. Rau siab-tus nqi galvanized coils, high{16}} cov khoom kawg kuj tuaj yeem xaiv rau cov ntawv ntim cov ntawv ntim tag nrho, feem ntau hu ua cov hnab ntawv hlau, uas muaj kev tiv thaiv xeb zoo dua.
II. Dab tsi yog cov thev naus laus zis tseem ceeb ntawm cov dej noo- pov thawj thiab airtight ntim? VCI (Nqus Phase Inhibition) tshuab ua tiav nws txoj kev tiv thaiv li cas?
Lub hauv paus ntawm noo noo- pov thawj thiab airtight ntim yog VCI thev naus laus zis. VCI tso tawm corrosion- txwv tsis pub cov roj molecules los tsim cov txheej txheem tiv thaiv monomolecular ntawm cov hlau saum npoo, uas yog ib puag ncig zoo thiab ua haujlwm zoo dua li cov roj ib txwm siv -raws li xeb inhibitors, nrog lub sijhawm tiv thaiv xeb ntawm 12 txog 24 lub hlis. Rau cov galvanized coils xav tau qhov chaw tiaj tus, VCI ntim yog qhov kev xaiv zoo tshaj plaws, vim nws ua kom luv cov txheej txheem ntxuav thiab degreasing, txo cov neeg ua haujlwm thiab sijhawm. Kev tiv thaiv xeb tau ua tiav ntev npaum li daim ntawv VCI tsis ncaj qha hu rau lub kauj, ua rau nws tsim tshwj xeeb rau precision galvanized coils nrog cov duab nyuaj.
Hauv cov ntawv thov siv tau, VCI xeb- ntawv tiv thaiv muaj nyob rau hauv ntau yam tshwj xeeb. Thaum ntim, xyuas kom cov coated sab ntawm daim ntawv ntsib cov hlau kauj kom ua kom nws cov xeb ntau tshaj plaws - tiv thaiv. Nyob ntawm lub sijhawm ntim khoom, VCI corrugated xaim-cov ntaub ntawv pov thawj muaj nyob rau hauv ob hom: woven reinforced thiab strip-reinforced. Cov qub muab kev tiv thaiv xeb rau 6 mus rau 12 lub hlis, thaum lub zog txhawb nqa tuaj yeem muab kev tiv thaiv ntau dua 12 lub hlis. VCI vapor theem corrosion inhibitor zaj duab xis yuav tsum tau ua kom tau raws li lub thickness thiab noo permeability. Rau cov haujlwm tiag tiag, nws raug nquahu kom tso cov khoom siv ntse ntev ntev - cov desiccant nyob rau hauv cov hlau coils uas tau ntim rau lub sijhawm ntev, thiab siv nws ua ke nrog lub kaw ntom nti ntawm txheej txheej los tiv thaiv cov seem seem hauv huab cua kub thiab ntub los ntawm kev puas tsuaj rau sab hauv ntawm lub ntim.
3. Yuav ua li cas xaiv lub ntim ntim raws li kev thauj mus los thiab lub sijhawm cia? Qhov kev sib txawv ntawm ib puag ncig ntawm hiav txwv thiab av kev thauj mus los cuam tshuam li cas rau kev xaiv?
Kev thauj mus los sib txawv thiab lub sijhawm khaws cia txiav txim siab qhov tseem ceeb ntawm cov tshuaj ntim khoom, suav nrog kev sib xyaw ntawm xeb-cov ntaub ntawv tiv thaiv, lub thickness ntawm cov zaj duab xis stretch, thiab tus nqi ntawm desiccant. Rau luv -kev thauj mus los hauv av thiab lub sijhawm khaws cia hauv 7 hnub, ib qho - txheej vapor theem inhibitor (VCI) zaj duab xis tuaj yeem siv, nrog cov yeeb yaj kiab tuab ntawm 0.08 txog 0.10 hli, thiab lub sijhawm tiv thaiv xeb ntawm 3 mus rau 6 lub hlis. Thaum cov galvanized coils yuav tsum tau thauj me me thiab them rau luv luv - lub sij hawm tiv thaiv hluav taws xob, PE zaj duab xis zoo tib yam nrog lub thickness tsawg dua 12 hli yuav txaus rau lub sij hawm luv luv, tab sis thov nco ntsoov tias tag nrho cov khoom thaiv ntawm PP cov khoom ntawm chav tsev kub yog txwv. Yog tias kev thauj mus los hauv hiav txwv tau npaj los yog npaj, yuav tsum siv ob - txheej VCI zaj duab xis nrog cov khoom siv desiccant, cov yeeb yaj kiab tuab tau nce mus rau 0.12 txog 0.15 hli, thiab cov tshuaj desiccant hloov mus rau 500 grams ib lub cubic meter, ncua lub sijhawm tiv thaiv xeb rau 12 lub hlis.
4. Cov txheej txheem kev ntim khoom yog dab tsi? Yuav ua li cas compatibility ntawm cov ntaub ntawv thiab galvanized coils yuav guaranteed?
Lub thickness ntawm cov ntaub ntawv tseem ceeb yog qhov tseem ceeb rau kev ntim khoom. Cov lus qhia tshwj xeeb rau ntau hom linerboard yog raws li hauv qab no: steel linerboard thickness feem ntau yog 0.4 txog 0.6 hli, thaum yas linerboard thickness yog 1.2 txog 1.4 hli. Qhov tuab ntawm VCI (Nqus Tsev-Induced Corrosion) cov yeeb yaj kiab feem ntau yuav tsum tsis pub tsawg dua 0.07 hli, thaum nyob rau hauv qhov chaw hnyav marine lossis ntub dej, cov yeeb yaj kiab thickness yuav tsum ntau dua lossis sib npaug li 0.12 hli. Lub txheej txheej ntawm stretch zaj duab xis yuav tsum ua raws li EN / ASTM cov qauv, nrog ib tug tuab feem ntau nyob ib ncig ntawm 0.08 hli; rau kev tiv thaiv kev tiv thaiv ntau dua, nws yuav tsum tau thickened mus rau 0.12 hli. Ntawm tag nrho cov kev ntsuas kev ua tau zoo rau xeb{13}} cov yeeb yaj kiab pov thawj, tswj cov dej noo permeability tsawg dua lossis sib npaug li 5 g / m² / hnub yog ib qho ntawm cov ntaub ntawv tseem ceeb kom ua raws li cov qauv kev tiv thaiv marine xeb.
Kev sib raug zoo ntawm cov ntaub ntawv thiab cov galvanized coils yog qhov tseem ceeb sib npaug: nws feem ntau pom zoo kom tsis txhob siv cov ntim nrog cov kua qaub tiv tauj xov xwm rau galvanized coils, vim qhov no tuaj yeem yooj yim ua rau muaj tshuaj lom neeg hauv zinc txheej thiab deterioration ntawm txheej. Tsis muaj xeb-cov ntaub ntawv pov thawj thiab tsis yog- ntaub npuag tau pom zoo raws li cov txheej txheem ncaj qha rau galvanized coils. Qhov no ua tau zoo zam qhov tsis pom tseeb thiab qhov chaw hauv cheeb tsam corrosion tshwm sim los ntawm kev sib cuag ntawm cov hlau nrog cov khoom sib txawv electrochemical. Thaum cov txheej galvanized nyias nyias (xws li, tsawg dua 80 grams ib square meter), cov hlau hlua khi siv rau hauv cov khoom ntim khoom tuaj yeem ua rau cov txheej txheem ncaj qha. Nylon sliders los yog hloov tau yooj yim, lub kaum sab xis tiv thaiv yuav tsum tau muab tso rau ntawm cov ntsiab lus sib txuas ntawm cov hlau hlua thiab cov kauj kom tswj tau qhov kev sib cuag tsis tshaj 0.5 MPa. Qhov tshwj xeeb tshwj xeeb ntawm ntau lub kaum tiv thaiv thiab cov phaj tiv thaiv yog ua kom haum rau lub taub sab nraud thiab qhov kawg ntawm lub ntsej muag ntawm cov hlau kauj.
5. Dab tsi yog qhov yuav tsum tau ua kom zoo rau kev ua haujlwm ntawm kev ntim khoom ntim? Yuav tshuaj xyuas qhov ntim zoo li cas?
Qhov zoo ntawm cov ntim ntim yog nyob ntawm kev ua haujlwm nruj ntawm txhua qhov kev ua haujlwm. Thaum muab cov ntaub qhwv sab nrauv, xyuas kom meej tias qhov dav ntawm lub plhaub sab nraud yog sib npaug ntawm qhov dav ntawm cov hlau sawb lossis 0 mus rau 50 hli ntau dua. Sab nrog zoo dua saum npoo yuav tsum tig mus rau sab saud. Thaum siv yas sheathing, sab ntxhib yuav tsum fim upwards thiab tus du sab downwards. Qhov sib tshooj ntawm sab nrauv yuav tsum tau tswj ntawm 150 thiab 200 mm. Thaum tso cov xeb- ntawv pov thawj, siv ib daim ntawv tiaj tus, nrog rau sab coated rau ntawm lub kauj hlau. Yuav tsum tsis muaj kev puas tsuaj los yog wrinkles. Qhov sib tshooj ntawm xeb- ntawv pov thawj yuav tsum tau khaws cia nyob rau hauv thaj tsam ntawm 150 txog 300 mm. Thaum muab cov ntawv tseem ceeb, siv daim kab xev nplaum los kaw thiab kaw tag nrho cov txheej txheem sib tshooj, kom ntseeg tau tias cov tub ntxhais ntawv lub raj yog nruj nreem txuas rau saum npoo ntawm cov hlau coil raws lub voj voog ntawm cov tub ntxhais. Qhov dav ntawm cov ntawv tseem ceeb yuav tsum yog qhov dav ntawm qhov txias -rolled steel strip rho tawm 0 mus rau 60 mm. Thoob plaws hauv cov txheej txheem ntim khoom, tag nrho cov khoom sib tshooj uas muaj xeb- cov ntawv pov thawj, cov ntawv tseem ceeb, thiab cov yeeb yaj kiab yas yuav tsum tau muab khi ruaj khov nrog cov nplaum nplaum kom ntseeg tau tias cov hlau coil tsim ib puag ncig kaw thiab ua tiav qhov zoo tshaj plaws tiv thaiv xeb.