Yuav kom muab cov ntaub ntawv siv rau cov neeg siv uas xav tso ib qho kev txiav txim rau cov kav hlau zinc txhuas magnesium tab sis tseem tsis tau tso ib qho kev txiav txim, tus editor tau sau tsab xov xwm no nrog kev cia siab tias yuav muab cov neeg siv khoom nrog cov nqi siv ntau dua.
Txheej txheem cej luam:
Nyob rau hauv xyoo tas los no, tag nrho cov peev xwm tsim khoom ntawm cov txheej txheem hauv tsev tseem nthuav dav, nrog rau cov chaw tsim khoom nrog cov peev xwm tsim khoom kub feem ntau txuas ntxiv lawv cov kab khoom mus rau hauv qab. Nyob rau hauv lub teb chaws txo cov pa roj carbon thiab kev txhawb nqa lub zog tshiab, cov khoom lag luam galvanized aluminium magnesium zoo heev tau dhau los ua ntau yam kev saib xyuas. Nyob rau hauv xyoo tas los no, ntau thiab ntau lub Hoobkas hlau tau koom nrog kev tsim cov zinc aluminium magnesium sheet coils, thiab kev sib tw tau dhau los ua qhov hnyav dua. Tsab xov xwm no yuav luv luv tshuaj xyuas qhov xwm txheej tam sim no thiab kev cia siab ntawm cov zinc aluminium magnesium sheet coils hauv tsev raws li qhov xwm txheej tam sim no ntawm kev ua lag luam.
Kev Taw Qhia thiab Kev Faib Tawm ntawm cov khoom zinc txhuas magnesium:
01. Kev Taw Qhia Txog Cov Khoom Zinc Aluminium Magnesium
Cov phaj hlau galvanized aluminium magnesium yog ib hom tshiab ntawm cov phaj hlau coated uas tiv taus xeb heev, feem ntau yog ua los ntawm zinc, 1.5% -11% aluminium, 1.5% -3% magnesium, thiab me ntsis silicon (nrog qhov sib txawv me ntsis ntawm cov chaw tsim khoom sib txawv). Nws feem ntau yog siv rau kev kho xeb ntawm cov hlau thiab cov khoom hlau, suav nrog ntau yam zinc series coatings thiab ntau yam ntawm tag nrho cov hlau rau kev tiv thaiv xeb. Nrog rau kev txhim kho tas mus li ntawm thev naus laus zis, zinc aluminium magnesium alloy coated steel phaj feem ntau yog siv hauv kev lag luam kev tsim kho vim lawv qhov kev tiv thaiv xeb zoo heev, kev ua tau zoo, kev vuam, thiab kev zoo nkauj. Lawv maj mam raug txhawb nqa thiab siv rau kev lag luam xws li cov khoom siv hauv tsev thiab kev tsim tsheb.
Nippon Steel, Nippon Steel, ThyssenKrupp thiab lwm lub tuam txhab hlau thoob ntiaj teb tau pib kawm txog cov hlau no hauv xyoo 1980, thiab tau pom tias muaj kev tsim khoom lag luam thiab kev siv hauv xyoo pua 21st. Plaub xyoos dhau los, feem ntau ntawm cov khoom siv zinc aluminium magnesium siv hauv Suav teb tau xa los ntawm cov tebchaws xws li Nyiv Pooj thiab Kaus Lim Qab Teb. Nrog rau kev ua kom tsis tu ncua ntawm kev lag luam photovoltaic hauv xyoo tas los no, ntxiv rau cov chaw tsim hlau hauv xeev xws li Baosteel, Jiuquan Steel, Shougang, thiab Tangshan Steel, ntau lub chaw tsim hlau ntiag tug kuj tau nkag mus rau hauv kev lag luam, xws li Tianjin Xinyu thiab Hebei Zhaojian. Qee lub tuam txhab tsim hlau strip kuj tau koom nrog kev lag luam. Tam sim no, qhov tuab uas tuaj yeem tsim tau hauv Suav teb yog 0.4mm-4.0mm, thiab qhov dav uas tuaj yeem tsim tau yog 580mm-2080mm. Tam sim no, cov chaw tsim hlau hauv Suav teb uas tsim cov zinc aluminium magnesium sheet coils feem ntau yog cov txhuas qis zinc aluminium magnesium, thiab tsuas yog ob peb lub tuam txhab tuaj yeem tsim cov khoom nruab nrab (siab) aluminium zinc aluminium magnesium. Piv txwv li, Shougang muaj cov khoom siv zinc aluminium magnesium tag nrho, thiab muaj tib txoj kab ntau lawm hauv lub tebchaws uas tuaj yeem muab cov hlau zinc aluminium magnesium coated nrog cov tuab ntawm 3.0 hli lossis ntau dua rau cov hom phiaj kev tsim kho.
02. Kev faib tawm thiab cov yam ntxwv ntawm cov khoom Zinc Aluminium Magnesium
Tam sim no, raws li Tuam Tshoj Baowu qhov kev tshuaj xyuas ntawm cov hlau nplaum magnesium uas twb muaj lawm, feem ntau ntawm cov txheej txheej muaj magnesium thiab magnesium cov ntsiab lus ≤ 3%. Raws li cov ntsiab lus txhuas sib txawv hauv cov txheej txheej, zinc txhuas magnesium txheej txheej raug muab faib ua:
Cov txheej txheem txhuas zinc txhuas magnesium tsawg: Cov ntsiab lus txhuas: 1% -3.5%. Cov txheej txheem no yog tsim los ntawm kev ntxiv qee qhov nyiaj ntawm txhuas magnesium thiab lwm yam khoom raws li kev sib xyaw ua ke kub-dip. Cov txheej txheem no yog ib qho kev hloov kho dua tshiab ntawm kev tiv thaiv corrosion ntawm cov txheej txheem zinc kub-dip ntshiab.
Nruab nrab txhuas zinc txhuas magnesium txheej: txhuas cov ntsiab lus: 5% -11%.
Txheej txheej aluminium zinc aluminium magnesium siab: Cov ntsiab lus aluminium: 55%. Cov txheej txheej no yog tsim los ntawm kev ntxiv qee qhov magnesium thiab lwm yam khoom raws li cov txheej txheem kub-dip aluminium zinc. Cov txheej txheej no yog ib qho kev hloov kho dua tshiab ntawm kev tiv thaiv corrosion ntawm cov txheej txheem kub-dip aluminium zinc.
Tam sim no, cov khoom tseem ceeb hauv Suav teb yog cov txhuas zinc txhuas magnesium qis, thiab qee lub tuam txhab xws li Shougang thiab Baosteel kuj tseem tuaj yeem tsim cov txhuas zinc txhuas magnesium siab. Zinc txhuas magnesium tsis yog tsuas yog ua tiav ncaj qha xwb, tab sis kuj ua haujlwm ua lub hauv paus rau cov xim coated sheet coils. Thaum pib ntawm xyoo 2022, thawj yob ntawm Baosteel Zhanjiang Steel cov xim txheej tau raug tshaj tawm thiab kev tsim khoom loj pib thaum kawg ntawm Lub Ob Hlis. Baosteel Zhanjiang Steel cov xim txheej tuaj yeem siv ntau yam zinc txhuas magnesium ua lub hauv paus, ua rau nws tsuas yog lub hauv paus tsim khoom thoob ntiaj teb rau ntau yam zinc txhuas magnesium xim txheej.
Tus cwj pwm ntawm cov khoom zinc aluminium magnesium tau dhau los ua ib qho lus nug kub tam sim no, cuam tshuam nrog lawv cov yam ntxwv zoo ntawm cov khoom. Qhov zoo tshaj plaws ntawm cov khoom zinc aluminium magnesium txheej yog pom tseeb hauv kev tiv thaiv corrosion siab, ua raws li kev ua haujlwm zoo.
Rooj 1: Kev sib piv ntawm cov khoom Zinc Aluminium Magnesium thiab cov khoom Zinc ntshiab
| Tus lej Serial | Cov yam ntxwv ntawm cov khoom | Kev sib piv ntawm Zinc Aluminium Magnesium thiab Pure Zinc |
| 1 | Kev tiv thaiv corrosion tiaj tus | Kev sim tshuaj tsuag ntsev tsis muaj zog: Txheej zinc txhuas magnesium siab dua 3-10 npaug dua li txheej zinc ntshiab ib txwm muaj. Kev xeb mus sij hawm ntev hauv huab cua: Txheej zinc txhuas magnesium tuaj yeem ncav cuag ntau dua 2 npaug dua li txheej zinc ntshiab. |
| 2 | Kev tiv thaiv corrosion ntawm cov incisions | Qhov kev tiv thaiv corrosion ntawm zinc txhuas magnesium notch txoj hauj lwm yog siab dua li ntawm cov txheej txheem zinc ntshiab ib txwm muaj. |
| 3 | Cov coefficient sib txhuam tsawg | Tus coefficient ntawm kev sib txhuam ntawm zinc txhuas magnesium txheej yog 15% qis dua li ntawm cov zinc txheej ntshiab |
| 4 | hnav tsis kam | Qhov nyuaj ntawm zinc txhuas magnesium txheej yog li peb zaug ntawm cov zinc txheej ntshiab |
Kev loj hlob ntawm keeb kwm yav dhau los ntawm cov khoom lag luam zinc txhuas magnesium hauv tsev
01. Kev txhim kho sib txawv ntawm kev muaj peev xwm tsim cov txheej txheem
Raws li tau hais thaum pib ntawm tsab xov xwm saum toj no, ua ntej xyoo 2016, cov khoom lag luam galvanized aluminium magnesium hauv tebchaws yeej tsis muaj dab tsi li. Nrog rau ob peb lub tuam txhab lag luam hauv nruab nrab, cov tuam txhab lag luam hauv xeev, thiab cov tuam txhab lag luam loj loj maj mam nkag mus rau hauv kev lag luam hauv tebchaws, lub peev xwm tsim khoom ntawm zinc aluminium magnesium maj mam txhim kho. Raws li cov ntaub ntawv tsis tiav, lub peev xwm tsim khoom ntawm zinc aluminium magnesium yuav tsum yog li 7 lab tons hauv ib xyoos, thiab cov khoom tam sim no nyob rau theem ntawm kev loj hlob sai. Txawm li cas los xij, nyob rau hauv cov ntsiab lus ntawm Tuam Tshoj Steel lub peev xwm tsim khoom loj thiab txheej txheej ntawm ntau dua 160 lab tons, tag nrho cov feem ntawm zinc aluminium magnesium txheej tseem me me.
Qhov kev txhim kho maj mam ntawm cov khoom tshiab qhia txog qhov muaj peev xwm tsim khoom ntau dhau ntawm tag nrho kev lag luam txheej: txawm hais tias Tuam Tshoj lub peev xwm tsim khoom txheej loj heev, qhov kev siv tag nrho ntawm lub peev xwm tsim khoom tiag tiag yog tsawg dua 60%, thiab cov tuam txhab ntiag tug tsis txaus ntawm kev tsim kho thiab kev siv tiag tiag. Cov khoom lag luam galvanized txhuas magnesium muaj teeb meem kev siv tshuab siab thiab cov txheej txheem xav tau, nrog rau tus nqi lag luam zoo thiab kev cia siab, thiab tau dhau los ua qhov kev taw qhia kub rau kev tshawb fawb thiab kev tsim khoom hauv tib lub lag luam hauv tsev thiab txawv teb chaws.
02. Nyob rau hauv kev sib tw hnyav, tseem muaj qee qhov peev xwm ua tau nyiaj rau cov khoom tshiab
Daim Duab 1: Tus nqi sib txawv thiab tus nqi sib txawv ntawm zinc, txhuas, magnesium, thiab zinc plating hauv Shanghai (chav tsev: yuan/ton)
Txij li thaum Lub Kaum Ob Hlis 7, Mysteel cov khoom siv tseem ceeb 2.0mm Ansteel zinc aluminium magnesium sheet coil hauv kev lag luam Shanghai muaj tus nqi ntawm 5500 yuan / ton, thaum cov khoom siv galvanized tseem ceeb 1.0mm Ansteel galvanized sheet coil muaj tus nqi ntawm 4700 yuan / ton, thiab qhov sib txawv ntawm tus nqi ntawm zinc aluminium magnesium sheet coil thiab galvanized sheet coil yog 800 yuan / ton. Raws li kev xam ntawm zinc txheej thiab kev ntsuas tshwj xeeb hauv cov nroj tsuag hlau, zinc aluminium magnesium phaj coil yog 275g zinc txheej, thiab qhov ntsuas rau zinc txheej hauv cov nroj tsuag hlau yog nyob ib puag ncig 300 yuan / ton. Raws li kev xam no, txawm tias rau cov khoom lag luam nrog tib lub zinc txheej tuab, tus nqi ntawm zinc aluminium magnesium yog siab dua li ntawm galvanized sheet coils, uas tsis ncaj qha ua pov thawj tias tseem muaj qee qhov peev xwm ua tau zoo rau cov khoom zinc aluminium magnesium, txawm tias los ntawm qhov kev xav ntawm cov tub luam lossis cov chaw tsim khoom hlau. Tau kawg, nws tsim nyog sau tseg tias thaum Lub Xya Hli, qhov sib txawv ntawm tus nqi ntawm zinc aluminium magnesium thiab galvanized sheet coil ib zaug tau nce mus txog 1350 yuan / ton, thiab tom qab ntawd tseem nyob hauv 1000 yuan / ton, qhia tias kuj muaj qee qhov kev sib tw hauv kev lag luam zinc aluminium magnesium tam sim no. Qhov sib txawv ntawm tus nqi ntawm Tianjin zinc aluminium magnesium thiab galvanized sheet yog ib qho piv txwv zoo, raws li pom hauv Daim Duab 2.
Hauv kev lag luam photovoltaic cov neeg siv khoom, ntxiv rau kev lag luam Sab Hnub Tuaj Tuam Tshoj, kuj muaj kev lag luam concentrated, uas yog Tianjin, tshwj xeeb tshaj yog concentrated hauv Daqiuzhuang. Qhov chaw tsim khoom concentrated ntawm photovoltaic brackets no kuj tau dhau los ua lub hom phiaj tseem ceeb rau ntau lub Hoobkas hlau. Tam sim no, hauv kev lag luam Tianjin, cov peev txheej tseem ceeb ntawm cov Hoobkas hlau suav nrog cov Hoobkas hlau hauv xeev Shougang, Ansteel, Tangshan Steel, thiab Handan Steel; Cov Hoobkas hlau ntiag tug xws li Hebei Zhaojian, Tianjin Xinyu, Shandong Huafeng, thiab lwm yam. Los ntawm qhov kev xav ntawm kev sib piv tus nqi sib txawv, qhov sib txawv ntawm tus nqi ntawm Tianjin zinc txhuas magnesium thiab zinc plating qis dua li ntawm kev lag luam Shanghai. Txhawm rau kom tau txais feem ntawm kev lag luam, cov Hoobkas hlau kuj tau hloov kho lawv cov cai raws li.
03 Kev loj hlob sai ntawm kev lag luam photovoltaic hauv cov ntsiab lus ntawm lub zog tshiab thiab kev txo cov pa roj carbon
Kev lag luam hauv qab ntawm kev lag luam txheej hauv tsev tau qhia txog kev sib txawv, thiab theem kev loj hlob kub ntawm kev siv tsheb thiab khoom siv hauv tsev tau dhau mus lawm, tab sis lub zog tshiab tab tom txhim kho sai. Thaum Lub Kaum Ib Hlis 21st, Lub Rooj Sib Tham Txog Kev Lag Luam Tsheb Neeg Caij Tsheb Hauv Tebchaws tau tshaj tawm daim ntawv tshaj tawm txog qhov sib txawv ntawm kev lag luam tsheb fais fab tshiab hauv Suav teb: Tuam Tshoj cov tsheb fais fab tshiab tsim tawm txij Lub Ib Hlis mus txog Lub Kaum Hli yog 5.59 lab units, nce txhua xyoo ntawm 108.4%, nrog rau tus nqi nkag mus ntawm 24.7% thiab tus nqi pab txhawb ntau dua 80% rau kev loj hlob ntawm kev lag luam tsheb. Ib yam li ntawd, nyob rau hauv cov ntsiab lus ntawm lub tebchaws txhawb nqa Kev Tsim Kho Tshiab thiab kev siv zog tshiab, qhov kev thov siv ntawm kev lag luam zinc txhuas magnesium muaj qhov chaw loj hlob thiab lub zog tawg.
Tuam Tshoj txoj kev lag luam photovoltaic tau mus txog theem thoob ntiaj teb hauv ntau yam, tshwj xeeb tshaj yog txij li xyoo 2022, nyob rau hauv kev nyuaj siab ntawm kev sib kis ntawm COVID-19 thiab kev lag luam poob qis, tag nrho kev loj hlob ntawm kev lag luam photovoltaic tseem ruaj khov. Hauv peb lub hlis twg thawj zaug ntawm xyoo 2022, Tuam Tshoj txoj kev tsim cov polycrystalline silicon, silicon wafers, roj teeb, thiab cov khoom tau ua tiav zoo heev, thiab kev tsim ntau yam kev sib txuas hauv cov saw hlau kev lag luam tau mus txog qhov siab tshaj plaws keeb kwm. Kev siv tshuab kev lag luam txuas ntxiv mus tsim kho tshiab thiab kev nce qib, thiab kev hloov pauv ntawm silicon heterojunction hnub ci hlwb tau teeb tsa cov ntaub ntawv tshiab hauv ntiaj teb ntawm 26.81%. Kev tawg tshiab kuj tau ua tiav hauv kev tshawb fawb thiab kev txhim kho thiab kev sim tsav ntawm perovskite stacked hlwb, thiab tus qauv "photovoltaic +" kuj tseem nthuav dav tas li. Hauv peb lub hlis twg thawj zaug, lub peev xwm tshiab ntawm cov photovoltaics hauv tsev tau mus txog 52.6GW. Txij Lub Ib Hlis mus txog Lub Kaum Hli, tag nrho cov nqi xa tawm ntawm photovoltaics hauv Tuam Tshoj tau tshaj 44 billion US dollars, txhawb nqa qhov kev thov loj hlob ntawm cov lag luam photovoltaics hauv tsev thiab txawv teb chaws.
Kev Tshawb Fawb Txog Kev Txhim Kho ntawm Zinc Aluminium Magnesium Sheet thiab Yob
01 Txhim kho cov qauv khoom lag luam tas li hauv kev siv lag luam
Txawm hais tias muaj kev loj hlob sai ntawm tag nrho cov peev xwm tsim cov txheej txheem, tseem muaj qhov xwm txheej ntawm cov peev xwm tsim cov txheej txheem siab nrog tus nqi siv qis. Cov lag luam yuav txuas ntxiv nthuav dav cov kev muag khoom hauv khw thiab nce kev sib koom ua lag luam. Rau kev nthuav dav tas mus li ntawm cov txheej txheem laminates lawv tus kheej, nws yog qhov nkag siab, tab sis nyob rau hauv kev sib tw tas mus li ntawm kev lag luam, muaj qee qib ntawm kev hloov pauv ntawm ntau yam ntawm cov txheej txheem laminates thiab yob.
Hauv kev lag luam khoom lag luam galvanized aluminium magnesium, tam sim no tsis muaj cov qauv khoom, nws yog qhov tseem ceeb rau cov tuam txhab loj hauv Suav teb kom ua tus thawj coj hauv kev tsim cov qauv tseem ceeb. Txhawm rau kom ua raws li kev tsim kho thiab tsim cov khoom tshiab zinc aluminium magnesium, raws txoj kev noj qab haus huv, tus kws tshaj lij nto moo Xu Xiufei los ntawm Tuam Tshoj Metallurgical Corporation (MCC), nrog kev txhawb nqa thiab kev pab los ntawm National Steel Standards Committee, tau teeb tsa cov tuam txhab txheej zoo thoob plaws lub tebchaws los kho dua tus qauv kev lag luam ntawm "Continuous Hot Dip Coated Steel Plate thiab Strip for Construction". Thawj zaug hauv ntiaj teb, txhua yam khoom txheej, suav nrog peb pawg loj ntawm zinc aluminium magnesium, tau suav nrog tib tus qauv, uas tsis yog tsuas yog yooj yim rau cov neeg yuav khoom los sib piv thiab siv, Nws tseem tuaj yeem txhawb kev xaiv cov ntaub ntawv tsim nyog thiab cov khoom plating zoo thiab pheej yig.
Nrog kev txhim kho ntawm kev sib tw ntawm cov tuam txhab hauv tsev cov khoom zinc aluminium magnesium, qhov sib txawv ntawm kev xa khoom zinc aluminium magnesium los ntawm txawv teb chaws tau raug thim rov qab, thiab ntau cov khoom zoo tau raug xa mus rau cov teb chaws siab heev xws li Tebchaws Europe thiab Asmeskas. Vim tsis muaj cov qauv thoob ntiaj teb, nws tsis yog tsuas yog cuam tshuam kev xa khoom thiab xa tawm ntawm cov khoom zinc aluminium magnesium steel, tab sis kuj ua rau muaj kev cuam tshuam kev lag luam. Yog li ntawd, kev siv zog rau kev sib tham thoob ntiaj teb thiab kev tsim cov qauv thoob ntiaj teb tau dhau los ua qhov ntsuas tseem ceeb rau cov khoom lag luam Suav kom mus thoob ntiaj teb. Nws tuaj yeem cia siab tias kev txhawb nqa ntawm qhov project tus qauv thoob ntiaj teb rau zinc aluminium magnesium sheets yuav qhib qhov xwm txheej tshiab rau Suav cov tuam txhab coated sheet los sib tw ntawm theem thoob ntiaj teb.
02 Kev txhim kho yav tom ntej ntawm cov khoom tseem tsim nyog tos ntsoov
Qhov kev nyuaj siab uas kev lag luam ntawv coated thiab coil ntsib tsis tuaj yeem hais dhau lawm. Kev muaj peev xwm ntau dhau tseem hnyav heev, thiab qhov chaw nqi tseem qeeb. Qhov kev loj hlob ntawm kev tsim khoom lag luam hauv tsev xws li cov khoom siv hauv tsev thiab tsheb yuav txuas ntxiv qeeb, ua rau nws nyuaj rau nce qhov kev thov. Tsis tas li ntawd, qhov txiaj ntsig ntawm kev lag luam ntawv hlau, suav nrog cov khoom coated, txuas ntxiv poob qis, thiab kev hloov kho sab hauv yuav txuas ntxiv ua rau kev hloov pauv kev lag luam nce ntxiv.
Txawm li cas los xij, cov khoom lag luam galvanized aluminium magnesium muaj cov haujlwm tshwj xeeb thiab cov yam ntxwv ntawm kev siv raws li cov khoom txheej, thiab qhov kev siv tshuab hauv tsev thiab txawv teb chaws tseem siab. Tib lub sijhawm, nws siv rau hauv cov haujlwm tseem ceeb thiab cov lag luam siab kawg ntawm cov neeg siv khoom tseem tab tom loj hlob, thiab nws cov chaw siv tseem tab tom nthuav dav. Kev cia siab rau yav tom ntej tseem tsim nyog tos ntsoov. Yog tias ib tus tuaj yeem koom nrog daim ntawv teev npe dawb ntawm cov tuam txhab yuav khoom, lawv kuj yuav muaj qhov zoo tshwj xeeb hauv kev sib tw no.
Kev sib tw ua lag luam tam sim no rau cov khoom siv zinc aluminium magnesium qis tau maj mam nce ntxiv, thiab ntau lub tuam txhab lag luam koom nrog kev tsim khoom thiab muag cov khoom siv zinc aluminium magnesium kom tau txais txiaj ntsig los ntawm cov khoom lag luam. Raws li cov yam ntxwv ntawm cov neeg siv khoom thiab kev txhim kho kev lag luam, nws raug pom zoo kom muab qhov tseem ceeb rau kev tso cov khoom siv galvanized aluminium magnesium rau hauv qhov kev taw qhia (nruab nrab) siab aluminium zinc aluminium magnesium. Kev ua lag luam ci ntsa iab thiab cov nyiaj tau los ntau ntawm kev lag luam yog qhov uas txhua tus neeg tos ntsoov.
Lub sijhawm tshaj tawm: Lub Xya Hli-04-2023
