Txhawm rau muab cov ntaub ntawv siv ntau ntxiv rau cov neeg siv uas xav tso qhov kev txiav txim rau zinc aluminium magnesium steel kav tab sis tseem tsis tau tso ib qho kev txiav txim, tus editor tau sau cov kab lus no hauv kev cia siab ntawm kev muab cov neeg siv khoom siv ntau dua tus nqi.
Txheej txheem cej luam:
Nyob rau hauv xyoo tas los no, tag nrho cov peev txheej ntawm cov txheej txheem hauv tsev tseem tab tom nthuav dav, nrog cov tuam ntxhab nrog cov khoom siv hluav taws xob kub kub feem ntau txuas lawv cov khoom lag luam qis qis. Nyob rau hauv cov ntsiab lus ntawm lub teb chaws carbon txo thiab txhawb zog tshiab, kuj high-end galvanized txhuas magnesium cov khoom tau los ua ib tug nrov ntau yam ntawm cov xim. Nyob rau hauv xyoo tas los no, ntau thiab ntau steel mills tau koom nrog kev tsim cov zinc aluminium magnesium sheet coils, thiab kev sib tw tau dhau los ua nruj heev. Tsab ntawv xov xwm no yuav piav qhia luv luv txog kev txhim kho tam sim no thiab kev cia siab ntawm cov zinc aluminium magnesium sheet coils raws li kev lag luam tam sim no.
Taw qhia thiab kev faib tawm ntawm zinc aluminium magnesium khoom:
01 .Introduction to Zinc Aluminium Magnesium Khoom
Galvanized aluminium magnesium steel phaj yog ib hom tshiab ntawm cov hlau nplaum-resistant coated steel phaj, feem ntau yog tsim los ntawm zinc, 1.5% -11% aluminium, 1.5% -3% magnesium, thiab cov lej ntawm silicon (nrog me ntsis sib txawv ntawm qhov kev faib ua feem ntawm txawv manufacturers). Nws yog tsuas yog siv rau saum npoo los tiv thaiv corrosion ntawm steel thiab steel khoom, nrog rau ntau yam zinc series coatings thiab ib tug loj tus naj npawb ntawm tag nrho cov hlau qhov chaw rau immersion corrosion tiv thaiv. Nrog rau kev txhim kho txuas ntxiv ntawm thev naus laus zis, zinc aluminium magnesium alloy coated steel daim hlau yog siv rau hauv kev tsim kho kev lag luam vim lawv cov corrosion kuj zoo heev, zoo formability, weldability, thiab zoo nkauj tsos. Lawv maj mam nce 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 nto moo thoob ntiaj teb tau pib kawm cov phaj hlau no hauv xyoo 1980, thiab paub txog kev tsim khoom thiab kev siv nyob rau hauv lub xyoo pua 21st. Plaub xyoos dhau los, feem ntau ntawm zinc aluminium magnesium cov khoom siv hauv Suav teb tau raug xa tawm los ntawm cov teb chaws xws li Nyiv thiab Kaus Lim Qab Teb. Nrog rau kev fermentation tsis tu ncua ntawm kev lag luam photovoltaic nyob rau hauv xyoo tas los no, ntxiv rau lub xeev cov tuam txhab steel xws li Baosteel, Jiuquan Steel, Shougang, thiab Tangshan Steel, ntau tus kheej steel mills kuj tau nkag mus rau hauv kev lag luam, xws li Tianjin Xinyu. thiab Hebei Zhaojian. Qee cov sawb steel ntau lawm kuj tau koom nrog kev lag luam. Tam sim no, cov thickness ntau yam uas tuaj yeem tsim nyob rau hauv Suav teb yog 0.4mm-4.0mm, thiab qhov dav dav uas tuaj yeem tsim tau yog 580mm-2080mm. Tam sim no, cov hlau mills nyob rau hauv Suav teb uas tsim zinc aluminium magnesium ntawv coils yog feem ntau tsis tshua muaj txhuas zinc aluminium magnesium, thiab tsuas yog ib tug me me ntawm cov lag luam tuaj yeem tsim nruab nrab (siab) aluminium zinc aluminium magnesium. Piv txwv li, Shougang muaj ib tug tag nrho series ntawm zinc aluminium magnesium, thiab muaj tib lub ntau lawm kab nyob rau hauv lub teb chaws uas muaj peev xwm muab zinc aluminium magnesium coated steel daim hlau nrog ib tug tuab ntawm 3.0 hli los yog ntau tshaj rau cov qauv.
02. Kev faib tawm thiab cov yam ntxwv ntawm cov khoom siv Zinc Aluminium Magnesium
Tam sim no, raws li Tuam Tshoj Baowu kev tshuaj xyuas ntawm cov khoom lag luam magnesium coated steel daim hlau uas twb muaj lawm, feem ntau ntawm cov txheej txheej muaj magnesium thiab magnesium ntsiab lus ≤ 3%. Raws li cov ntsiab lus txhuas sib txawv hauv cov txheej txheem, zinc aluminium magnesium txheej tau muab faib ua:
Tsawg aluminium zinc aluminium magnesium txheej: Txhuas cov ntsiab lus: 1% -3.5%. Cov txheej no yog tsim los ntawm kev ntxiv ib qho nyiaj ntawm txhuas magnesium thiab lwm yam ntsiab lus ntawm kub-dip galvanizing. Cov txheej no yog ib qho kev hloov kho tshiab ntawm kev tiv thaiv corrosion ntawm kub-dip ntshiab zinc txheej.
Nruab nrab aluminium zinc aluminium magnesium txheej: txhuas cov ntsiab lus: 5% -11%.
High aluminium zinc aluminium magnesium txheej: Txhuas cov ntsiab lus: 55%. Cov txheej no yog tsim los ntawm kev ntxiv ib qho nyiaj ntawm magnesium thiab lwm yam ntsiab lus ntawm kub-dip aluminium zinc txheej. Cov txheej no yog ib qho kev hloov kho tshiab ntawm kev tiv thaiv corrosion ntawm kub-dip aluminium zinc txheej.
Tam sim no, cov khoom tseem ceeb hauv Suav teb yog tsawg aluminium zinc aluminium magnesium, thiab qee lub lag luam xws li Shougang thiab Baosteel kuj tuaj yeem tsim cov txhuas zinc aluminium magnesium. Zinc aluminium magnesium tsis tuaj yeem tsuas yog ua tiav ncaj qha, tab sis kuj tseem ua lub substrate rau xim coated ntawv coils. Thaum pib ntawm 2022, thawj yob ntawm Baosteel Zhanjiang Steel cov xim txheej tau raug tsim tawm thiab kev tsim khoom loj tau pib thaum kawg Lub Ob Hlis. Baosteel Zhanjiang Steel cov xim txheej tuaj yeem siv tag nrho cov zinc aluminium magnesium ua lub substrate, ua rau nws tsuas yog lub ntiaj teb ntau lawm puag rau tag nrho cov zinc aluminium magnesium xim txheej.
Tus cwj pwm ntawm zinc aluminium magnesium cov khoom tau dhau los ua lub ntsiab lus kub tam sim no, ze ze rau lawv cov khoom zoo. Qhov txiaj ntsig zoo tshaj plaws ntawm zinc aluminium magnesium txheej cov khoom yog pom nyob rau hauv siab corrosion kuj, ua raws li kev ua haujlwm.
Table 1: Kev sib piv ntawm Zinc Aluminium Magnesium Cov Khoom Siv thiab Cov Khoom Siv Zinc Ntshiab
| Serial Number | Cov yam ntxwv ntawm cov khoom | Kev sib piv ntawm Zinc Aluminium Magnesium thiab Pure Zinc |
| 1 | Flat corrosion kuj | Neutral ntsev tsuag tshuaj ntsuam: Zinc aluminium magnesium txheej yog 3-10 npaug siab dua li cov tshuaj dawb zinc txheej. Atmospheric corrosion mus sij hawm ntev: Zinc aluminium magnesium txheej tuaj yeem ncav cuag ntau dua 2 npaug siab dua li cov xim zinc txheej. |
| 2 | Lub corrosion kuj ntawm incisions | Qhov kev tiv thaiv corrosion ntawm zinc aluminium magnesium notch txoj hauj lwm yog ntau dua li cov tsoos ntshiab zinc txheej |
| 3 | Tsawg kev sib txhuam coefficient | Kev sib txhuam coefficient ntawm zinc aluminium magnesium txheej yog 15% qis dua li cov zinc txheej ntshiab |
| 4 | hnav tsis kam | Lub hardness ntawm zinc aluminium magnesium txheej yog li peb npaug ntawm cov zinc txheej ntshiab |
Zuag qhia tag nrho kev loj hlob keeb kwm ntawm domestic zinc aluminium magnesium khoom
01 .Relatively differentiated txoj kev loj hlob ntawm txheej ntau lawm muaj peev xwm
Raws li tau hais thaum pib ntawm tsab xov xwm saum toj no, ua ntej 2016, cov khoom siv hauv tsev galvanized aluminium magnesium yog qhov tsis muaj. Nrog rau ob peb lub hauv paus kev lag luam, cov tuam txhab lag luam hauv xeev, thiab cov tuam txhab lag luam ntiag tug loj maj mam nkag mus rau hauv kev lag luam hauv tsev, cov peev txheej ntawm zinc aluminium magnesium yog maj mam tsim. Raws li kev txheeb cais tsis tiav, lub peev xwm ntawm zinc aluminium magnesium yuav tsum nyob ib ncig ntawm 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 loj steel ntau lawm thiab txheej muaj peev xwm ntawm ntau tshaj 160 lab tons, tag nrho cov feem ntawm zinc aluminium magnesium txheej tseem me me.
Kev tsim kho tshiab ntawm cov khoom tshiab qhia txog qhov muaj peev xwm ntau dhau ntawm tag nrho cov txheej txheem kev lag luam: txawm hais tias Tuam Tshoj cov txheej txheej ntau lawm muaj peev xwm loj, qhov kev siv tag nrho ntawm qhov muaj peev xwm tsim tau tsawg dua 60%, thiab cov lag luam ntiag tug kuj tsis txaus rau kev tsim kho. thiab kev siv tiag tiag. Galvanized aluminium magnesium cov khoom muaj kev nyuaj siab thiab cov txheej txheem yuav tsum tau ua, nrog rau kev ua lag luam zoo thiab kev cia siab, thiab tau dhau los ua cov kev taw qhia kub rau kev tshawb fawb thiab kev tsim khoom hauv tib txoj kev lag luam hauv tsev thiab txawv teb chaws.
02. Raws li kev sib tw hnyav, tseem muaj qee qhov txiaj ntsig zoo 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 (unit: yuan / ton)
Raws li lub Kaum Ob Hlis 7th, Mysteel lub ntsiab lus tshwj xeeb 2.0mm Ansteel zinc aluminium magnesium sheet coil nyob rau hauv Shanghai lag luam muaj tus nqi ntawm 5500 yuan / tuj, thaum lub ntsiab galvanized khoom 1.0mm Ansteel galvanized ntawv coil muaj tus nqi ntawm 4700 yuan / tuj, thiab tus nqi sib txawv ntawm zinc aluminium magnesium sheet coil thiab galvanized sheet coil yog 800 yuan/ton. Raws li kev suav cov zinc txheej thiab cov cim tshwj xeeb hauv cov nroj tsuag steel, zinc aluminium magnesium phaj coil yog 275g zinc txheej, thiab cov cim rau zinc txheej hauv cov nroj tsuag steel yog nyob ib ncig ntawm 300 yuan / tuj. Raws li qhov kev suav no, txawm tias rau cov khoom lag luam nrog tib lub zinc txheej tuab, tus nqi ntawm zinc aluminium magnesium yog ntau dua li ntawm galvanized sheet coils, uas qhia ncaj qha tias tseem muaj qee qhov txiaj ntsig zoo rau zinc aluminium magnesium cov khoom, txawm tias los ntawm qhov kev xav ntawm cov tub lag luam lossis steel mills. Tau kawg, nws tsim nyog sau cia tias thaum Lub Xya Hli, tus nqi sib txawv ntawm zinc aluminium magnesium thiab galvanized sheet coil ib zaug nce mus rau 1350 yuan / tuj, thiab tom qab ntawd tseem nyob hauv 1000 yuan / tuj, qhia tias tseem muaj qee qhov kev sib tw tam sim no. zinc aluminium magnesium ua lag luam. Tus nqi sib txawv ntawm Tianjin zinc aluminium magnesium thiab galvanized ntawv yog ib qho piv txwv zoo, raws li pom hauv daim duab 2.
Nyob rau hauv kev lag luam photovoltaic neeg siv khoom, ntxiv rau East Tuam Tshoj kev lag luam, kuj tseem muaj kev lag luam concentrated, uas yog Tianjin, tshwj xeeb tshaj yog concentrated hauv Daqiuzhuang. Qhov no concentrated ntau lawm cheeb tsam ntawm photovoltaic brackets kuj tau los ua lub hom phiaj tseem ceeb rau ntau steel mills. Tam sim no, nyob rau hauv Tianjin kev ua lag luam, lub ntsiab circulating steel zeb kev pab cuam muaj xws li lub xeev-muaj steel mills Shougang, Ansteel, Tangshan Steel, thiab Handan Steel; Private steel mills xws li Hebei Zhaojian, Tianjin Xinyu, Shandong Huafeng, thiab lwm yam. Los ntawm qhov kev xav ntawm tus nqi sib piv, tus nqi sib txawv ntawm Tianjin zinc aluminium magnesium thiab zinc plating yog qis dua li hauv Shanghai ua lag luam. Txhawm rau txhawm rau txeeb kev lag luam, steel mills kuj tau kho lawv cov cai raws li.
03 Txoj kev loj hlob sai ntawm kev lag luam photovoltaic nyob rau hauv cov ntsiab lus ntawm lub zog tshiab thiab carbon txo ib puag ncig
Kev lag luam downstream ntawm kev lag luam txheej hauv tsev tau qhia txog qhov sib txawv, thiab qhov kub loj hlob theem ntawm kev siv tsheb thiab khoom siv hauv tsev tau dhau los, tab sis lub zog tshiab tab tom loj hlob sai. Thaum Lub Kaum Ib Hlis 21st, Lub Tsev Haujlwm Saib Xyuas Kev Lag Luam Hauv Lub Tebchaws Cov Ntaub Ntawv Sib Tham Sib Tham tau tshaj tawm tsab ntawv tshaj tawm txog tus qauv ntawm Tuam Tshoj lub zog tshiab tsheb lag luam: Tuam Tshoj lub zog tshiab tsheb tsim los ntawm Lub Ib Hlis mus txog Lub Kaum Hli yog 5.59 lab units, ib xyoos ib zaug nce ntawm 108.4%, nrog rau qhov nce nkag mus ntawm 24.7% thiab kev koom tes ntawm ntau dua 80% rau kev loj hlob ntawm kev lag luam tsheb. Ib yam li ntawd, nyob rau hauv cov ntsiab lus ntawm lub teb chaws nquag txhawb New Infrastructure thiab tshiab zog noj, qhov kev thov ntawm zinc aluminium magnesium kev lag luam muaj theem loj hlob qhov chaw thiab tawg quab yuam.
Tuam Tshoj txoj kev lag luam photovoltaic tau mus txog thoob ntiaj teb kev ua lag luam nyob rau hauv ntau yam, tshwj xeeb tshaj yog txij li xyoo 2022, nyob rau hauv lub siab ntawm kev sib kis ntawm COVID-19 thiab kev lag luam poob qis, tag nrho cov kev loj hlob ntawm kev lag luam photovoltaic tau nyob ruaj khov. Nyob rau hauv thawj peb lub hlis twg ntawm 2022, Tuam Tshoj tus zus tau tej cov polycrystalline silicon, silicon wafers, roj teeb, thiab cov khoom tau ua ib tug tseem ceeb kev vam meej, thiab zus tau tej cov kev sib txuas nyob rau hauv lub industrial saw tau mus txog ib tug historic siab. Kev lag luam thev naus laus zis txuas ntxiv txhim kho thiab ua tiav, thiab kev hloov pauv ntawm silicon heterojunction hnub ci hlwb tau teeb tsa lub ntiaj teb cov ntaub ntawv tshiab ntawm 26.81%. Kev tawg tshiab kuj tau ua nyob rau hauv kev tshawb fawb thiab kev tsim kho thiab kev sim ntawm perovskite stacked hlwb, thiab cov qauv "photovoltaic +" kuj tseem nthuav dav. Nyob rau hauv thawj peb lub hlis twg, lub peev xwm tsim tshiab ntawm domestic photovoltaics mus txog 52.6GW. Txij Lub Ib Hlis Ntuj txog Lub Kaum Hli, tag nrho cov nqi xa tawm ntawm photovoltaics hauv Suav teb tau tshaj 44 billion US dollars, txhawb kev loj hlob ntawm kev lag luam photovoltaics hauv tsev thiab txawv teb chaws.
Kev Tshawb Fawb Txog Kev Txhim Kho Kev Txhim Kho ntawm Zinc Aluminium Magnesium Sheet thiab Yob
01 Txuas ntxiv txhim kho cov qauv khoom hauv kev lag luam daim ntawv thov
Tawm tsam keeb kwm yav dhau los ntawm kev loj hlob sai hauv tag nrho cov txheej txheem ntau lawm, tseem muaj qhov xwm txheej ntawm cov txheej txheem ntau lawm nrog cov nqi siv tsawg. Cov tuam txhab lag luam yuav txuas ntxiv nthuav dav kev lag luam kev muag khoom thiab nce kev lag luam. Rau kev nthuav dav txuas ntxiv ntawm coated laminates lawv tus kheej, nws yog qhov nkag siab, tab sis nyob rau hauv kev sib tw tsis tu ncua ntawm kev lag luam, muaj qee qhov kev hloov pauv ntawm ntau yam ntawm coated laminates thiab yob.
Hauv kev lag luam galvanized aluminium magnesium cov khoom lag luam, tam sim no tsis muaj cov qauv khoom lag luam, nws yog ib qho tseem ceeb rau cov tuam txhab lag luam loj hauv Suav teb los ua tus thawj coj hauv kev tsim cov qauv tsim. Txhawm rau kom tus qauv tsim thiab tsim cov zinc aluminium magnesium, ib yam khoom tshiab, raws li kev noj qab haus huv, tus kws tshaj lij kws tshaj lij Xu Xiufei los ntawm Tuam Tshoj Metallurgical Corporation (MCC), nrog kev txhawb nqa thiab kev pab los ntawm National Steel Standards Committee, npaj txheej txheej zoo heev. cov tuam txhab thoob plaws lub tebchaws los kho cov qauv kev lag luam ntawm "Nruam Kub Dip Coated Steel Phaj thiab Sawb rau Kev Tsim Kho". Thawj thawj zaug hauv ntiaj teb no, tag nrho cov txheej txheem txheej, suav nrog peb pawg loj ntawm zinc aluminium magnesium, tau suav nrog tib tus qauv, uas tsis yog yooj yim rau cov neeg yuav khoom los sib piv thiab siv, Nws kuj tseem tuaj yeem txhawb kev xaiv cov khoom tsim nyog thiab cov khoom zoo thiab raug nqi plating.
Nrog rau kev txhim kho ntawm kev sib tw ntawm cov lag luam hauv tsev 'zinc aluminium magnesium cov khoom, qhov sib txawv ntawm cov khoom siv zinc aluminium magnesium los ntawm txawv teb chaws tau thim rov qab, thiab ntau cov khoom zoo tau raug xa tawm mus rau cov teb chaws siab heev xws li Europe thiab Amelikas. Vim tsis muaj cov txheej txheem thoob ntiaj teb, nws tsis tau tsuas yog cuam tshuam kev lag luam thiab xa tawm ntawm zinc aluminium magnesium steel khoom, 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 tsim cov qauv thoob ntiaj teb tau dhau los ua qhov kev ntsuas loj rau cov khoom lag luam Suav mus rau thoob ntiaj teb. Nws tuaj yeem cia siab tias qhov kev txhawb nqa ntawm cov txheej txheem thoob ntiaj teb rau zinc aluminium magnesium nplooj ntawv yuav qhib qhov xwm txheej tshiab rau Suav coated sheet tuam txhab lag luam los sib tw thoob ntiaj teb.
02 Kev txhim kho yav tom ntej ntawm cov khoom tseem tsim nyog tos ntsoov rau
Lub siab ntsib los ntawm cov ntawv coated thiab coil kev lag luam tsis tuaj yeem overstated. Overcapacity tseem hnyav heev, thiab tus nqi nruab nrab yog tseem sluggish. Kev loj hlob ntawm kev lag luam hauv tsev xws li cov khoom siv hauv tsev thiab tsheb yuav txuas ntxiv qeeb, ua rau nws nyuaj rau kev xav tau ntau ntxiv. Tsis tas li ntawd, cov txiaj ntsig ntawm cov ntawv hlau kev lag luam, nrog rau cov khoom siv coated, tseem pheej poob qis, thiab kev hloov kho hauv cov txheej txheem sab hauv yuav ua rau muaj kev hloov pauv kev lag luam ntxiv.
Txawm li cas los xij, galvanized aluminium magnesium cov khoom muaj cov khoom lag luam tshwj xeeb thiab cov yam ntxwv ntawm daim ntawv thov raws li cov khoom siv txheej txheej, thiab cov txheej txheem kev kawm hauv tsev thiab txawv teb chaws tseem siab. Nyob rau tib lub sijhawm, nws cov kev siv hauv cov haujlwm tseem ceeb thiab cov khoom siv high-end downstream cov neeg siv khoom lag luam tseem tab tom loj hlob, thiab nws cov chaw siv tseem tab tom nthuav dav. Txoj kev txhim kho yav tom ntej tseem tsim nyog tos ntsoov rau. Yog tias ib tus tuaj yeem koom nrog cov npe dawb ntawm kev yuav khoom lag luam, lawv kuj yuav muaj qhov tshwj xeeb zoo hauv qhov kev sib tw no.
Kev sib tw ua lag luam tam sim no rau qis aluminium zinc aluminium magnesium tau maj nrawm zuj zus, thiab ntau thiab ntau lub tuam txhab tau koom nrog hauv kev tsim thiab muag ntawm zinc aluminium magnesium cov khoom txhawm rau muab cov khoom sib faib. Raws li cov neeg siv khoom tus yam ntxwv thiab kev txhim kho kev lag luam, nws raug nquahu kom ua qhov tseem ceeb ntawm qhov chaw ntawm galvanized aluminium magnesium cov khoom nyob rau hauv (nruab nrab) siab aluminium zinc aluminium magnesium kev taw qhia. Kev lag luam ci ntsa iab thiab cov txiaj ntsig loj ntawm kev lag luam yog raws nraim li txhua tus neeg tab tom nrhiav rau pem hauv ntej.
Post lub sij hawm: Jul-04-2023
