Ekupheleni kweminyaka yoo-1980, iChina yaqala ukwakha iiyunithi zokugquma ngombala ngokulandelelanayo.Uninzi lwezi yunithi zakhiwe kwizityalo zentsimbi kunye nentsimbi kunye namaphulo adibeneyo, kunye nezixhobo zenkqubo yokugquma umbala zazisuka kumazwe angaphandle.Ngo-2005, ibhodi egqunywe ngemibala yasekhaya yayisele ifikelele kwi-1.73 yezigidi zeetoni, nto leyo ekhokelele kumthamo ogqithisileyo.I-Baosteel, i-Anshan Iron kunye nentsimbi, i-Benxi Iron kunye nentsimbi, iShougang, iTangshan Iron kunye nentsimbi, iJinan Iron kunye nentsimbi, i-Kunming Iron kunye nentsimbi, i-Handan Iron kunye nentsimbi, i-Wuhan Iron kunye nentsimbi, i-Panzhihua Iron kunye nentsimbi kunye nezinye iintsimbi ezinkulu zaseburhulumenteni. kunye namashishini entsimbi anomthamo ophezulu weyunithi kunye nenqanaba lezixhobo.Baye bakha ngokulandelelanayo iiyunithi zokugquma umbala ngeteknoloji yangaphandle kunye nomthamo wemveliso yonyaka we-120000 ~ 170000 yeetoni.
Kwangaxeshanye, ukuveliswa kweebhodi ezinombala otyalwe ngamashishini abucala amaninzi amkela izixhobo zasekhaya, ezinomthamo omncinci wemveliso, kodwa kukhawuleza ukuqalisa kunye notyalo-mali oluphantsi.Iimveliso ikakhulu zezezinto zokwakha kunye namashishini okuhombisa.Ukongeza, i-capital yangaphandle kunye ne-capital yaseTaiwan nayo ifikile ukwakha iiyunithi zokugquma umbala, kodwa uninzi lwazo lugxile kwiindawo eziselunxwemeni.Ukusukela ngo-1999, ngokuchuma kwemarike yepleyiti egqunywe ngombala, ukuveliswa kunye nokusetyenziswa kwepleyiti egqunywe ngombala kungene kwixesha lokukhula ngokukhawuleza.Ukususela ngo-2000 ukuya ku-2004, imveliso inyuke ngesantya esiphakathi kwama-39.0%.Ngo-2005, umthamo wesizwe wemveliso yeepleyiti ezigqunywe ngombala zazingaphezu kwe-8 yezigidi zeetoni / ngonyaka, kwaye inani leeyunithi ezigqunywe ngombala zazisakhiwa, kunye nomthamo wemveliso welizwe ongaphezulu kwe-9 yezigidi zeetoni / ngonyaka.
Iingxaki ezikhoyo: 1 Nangona amandla okuvelisa ipleyiti yesiseko eshushu-diphu yezinto zokwakha inkulu, kukho ukunqongophala kweepleyiti zesiseko ezilungileyo ezifana ne-flat hot-dip galvanized steel coil ngaphandle kwentyatyambo ye-zinc kunye ne-zinc alloy coil coil yensimbi;2. Iindidi kunye nomgangatho weengubo zasekhaya azikwazi ukuhlangabezana ngokupheleleyo neemfuno.Ixabiso eliphezulu leengubo ezithunyelwa ngaphandle linciphisa ukukhuphisana.Ifilimu yeplastiki efunekayo kwipleyiti yombala wefilimu isafuna ukungeniswa kumazwe angaphandle, kwaye kukho ukunqongophala kwepleyiti yombala ophezulu kunye nombala obunzima, ukusebenza, amandla aphezulu kunye nemibala ecebileyo;3. Iimveliso azikho emgangathweni, okukhokelela kwinkcitho enkulu yezibonelelo.Kukho iiyunithi ezininzi zamandla aphantsi ezinomthamo ongaphantsi kweetoni ze-40000 / ngonyaka, kwaye kukho iingxaki kumgangatho wemveliso kunye nokukhuselwa kobutyebi bendalo;4. Zininzi kakhulu iiyunithi zokugquma ngemibala emitsha e-China, engaphezulu lee kwimfuno yemarike, ekhokelela kumlinganiselo ophantsi wokusebenza weyunithi ezininzi zokugquma imibala kunye nokuvalwa.
Indlela yophuhliso:
Okokuqala, ukusetyenziswa kwe-substrate yomgangatho ophezulu kufuna iimfuno eziphezulu kunye neziphezulu kumphezulu, imilo kunye nokuchaneka kwe-dimensional ye-substrate.Ukusetyenziswa ngaphandle, njengentyatyambo ye-zinc encinci iflethi eshushu-diphu ikhoyili yentsimbi kunye nentyatyambo engeyiyo i-zinc flat eshushu-dip ikhoyili yentsimbi, ingxubevange ye-zinc eshushu-diphu ikhoyili yegalvanized inyuka ngexesha;Ukusetyenziswa kwangaphakathi, okufana nekhoyili yentsimbi, ishidi eliqengqelekisiweyo elibandayo kunye nekhoyili yealuminiyam.
Okwesibini, phucula inkqubo yonyango lwangaphambili kunye nolwelo lwangaphambili.Ngezixhobo ezincinci kunye neendleko eziphantsi, kuye kwaba yinkqubo eqhelekileyo, kwaye iphucula rhoqo ukuzinza, ukuxhathisa ukubola kunye nokusebenza kokukhusela okusingqongileyo kwi-pretreatment liquid.
Okwesithathu, ukuphuhliswa kweengubo ezintsha kukuphucula i-polyester jikelele, i-polyvinylidene fluoride (PVDF) kunye neplastiki yeplastiki ukuze ufumane ukuveliswa kombala ophezulu, ukuxhathisa kwe-UV, ukuxhathisa i-sulfure dioxide kunye nokuxhathisa ukubola;Phuhlisa iingubo ezisebenzayo ezifana nokumelana nongcoliseko kunye nokufunxa ubushushu.
Okwesine, izixhobo zeyunithi zigqibelele ngakumbi.Umzekelo, oomatshini bokuwelda abatsha, oomatshini abatsha bokugquma, iziko lokunyanga eziphuculweyo, kunye nezixhobo ezizenzekelayo ezizenzekelayo.
Okwesihlanu, itekhnoloji yokuvelisa i-embossing ebandayo ibe yindlela yophuhliso ngenxa yeendleko zayo eziphantsi, inkangeleko entle, imvakalelo enobuthathu kunye namandla aphezulu.
Okwesithandathu, nikela ingqalelo kwiiyantlukwano, ukusebenza kunye nomgangatho ophezulu weemveliso, ezinje ngebhodi yokwambathisa enzulu yombala, "isikhumba segrapefruit" ibhodi yokwaleka ngombala, ibhodi yokugquma i-anti-static color, ibhodi yokwaleka enokumelana nongcoliseko, umbala wokufunxa ubushushu obuphezulu. ibhodi yokwambathisa, njl.
Umkhwa wangoku eTshayina kukuba abavelisi bepleyiti eqatywe ngombala bahlawula ngakumbi nangakumbi ingqwalasela kumgangatho we substrates ezisetyenziswa kwimveliso yabo yeepleyiti ezigqunywe ngombala, kwaye zineemfuno eziphezulu neziphezulu zenkqubo yabo yokuvelisa, eyenza ukuba iipleyiti ezigqunywe ngombala zibe nazo. igalelo elibalaseleyo kwinkqubo yokwenziwa kwemveliso.Ngaphezu koko, izixhobo zokuvelisa iipleyiti ezigqunywe ngombala nazo zihambele phambili kakhulu, nto leyo eyenza ukuba iipleyiti ezigqunywe ngombala zizenzekele ngakumbi kwimveliso, ezingagcini nje kuphela iindleko, kodwa zigcina uninzi lwabasebenzi, Ngaphezu koko, kukho ngaphezulu kwaye abenzi ipleyiti coated ngaphezulu umbala, kwaye ukhuphiswano kwimarike kuba ngakumbi nangakumbi.Ukuphucula umgangatho wemveliso kunye nokunciphisa iindleko zemveliso yemveliso ibe yinto eqhelekileyo yabenzi beepleyiti ezinombala.Iimveliso zebhodi ezigqunywe ngombala ziye zahluka kakhulu.Iibhodi ezigqunywe ngemibala eyahlukeneyo zinokudlala imisebenzi emininzi eyahlukeneyo, nto leyo eyenza ukuba imakethi yebhodi efakwe umbala ibe mnandi kakhulu.
Ixesha lokuposa: Jul-05-2022
