Nokuwedzera kwapashoma napashoma mukushandiswa kwesimbi dzakavharwa noruvara muindasitiri yokuvaka, ngwariro yavanhu kumarata ane mavara anopfuurira kuwedzera.
Maererano nehuwandu husina kukwana: Muna 2016, kushandiswa kwepamba kweChina kweplateti yesimbi yakagadzirwa kare yaiva mamiriyoni 5.8. Saka, sei chaizvo pre-painted steel plate inogadzirwa?
Mahwendefa esimbi ane mavara(anozivikanwawo se organic coated steel plates and pre-coated steel plates) anotumidzwa zita remagadziko esimbi (anonzi substrates) akavharwa nemavara akasiyana.
Ruvara-yakavharwa simbi pepa chigadzirwa chine kureba kwekugadzira kutenderera.Kubva pakupisa kukungurukira kuenda kunotonhora kukunguruka, ine hukobvu chaihwo, hupamhi uye pateni, uye yobva yapinda mukati, galvanizing uye coating yeruvara kuti iite ine ruvara.jira rakavharwa nemavara.Maitirwo makuru ekugadzirwa kwechikwata chekuvhara mavara anosanganisira: Pretreatment process, coating process, baking process
1, Pretreatment maitiro
Iyo inonyanya kuita nzira yekubvisa tsvina nemafuta akabatanidzwa pamusoro pepamusoro mushure mokunge substrate yacheneswa;uye kuita composite oxidation uye passivation marapirwo kuumba pretreatment firimu.Iyo pretreatment firimu inzira inoshanda yekuvandudza simba rekubatanidza pakati pe substrate uye coating.
2, Coating process
Parizvino, iyo inonyanya kushandiswa yekuputira maitiro ekugadzira mavara mayuniti mumiti mikuru yesimbi ndeye roller coating.Roll coating ndeyekuunza pende mupani yependi kune yekuputira roller kuburikidza nebhandi roller, uye humwe hukobvu hwefirimu rakanyorova hunoumbwa pamucheka wekuputira., Uye wobva waendesa iyi bhaisikopo remvura kune nzira yekupfekedza ye substrate pamusoro.Nekugadzirisa gap re roller, kudzvanywa uye kumhanya kwe roller, ukobvu hwekuputira hunogona kuwedzera kana kudzikiswa mukati meimwe mhando; Inogona kupendwa kune rimwe divi kana kumativi maviri panguva imwe chete.Iyi nzira inokurumidza uye ine hunyanzvi hwekugadzira.
3、Baking process
Iyo yekubikira maitiro inonyanya kubata nekuporeswa kwejasi pamusoro pesimbi ndiro, izvo zvinoreva kuti iyo yekupfeka inopinda makemikari polycondensation, polyaddition, crosslinking uye mamwe maitiro pasi peimwe tembiricha uye mamwe mamiriro kuburikidza neiyo huru yekugadzira firimu zvinhu, zvinobatsira. firimu-kugadzira zvinhu uye kurapa mumiririri.Maitiro ekuchinja kubva kumvura kuenda kune yakasimba. Iyo yekubatisa yekurapa uye yekubikira maitiro anowanzo sanganisira yekutanga coating kubikira, yakanaka coating kubheka uye inoenderana nemarara gasi incineration system.
4, Kuzotevera kugadzirisa kwepre-painted steelsheet
Kusanganisira embossing, kudhinda, laminating uye dzimwe nzira dzekurapa, waxing kana firimu rekudzivirira rinogona kuwedzerwawo, izvo zvisingango wedzera anti-corrosion mhedzisiro yeplate yakavharwa nemavara, asi inodzivirirawo ndiro yakavharwa nemavara kubva kumakwara panguva yekubata kana kugadzirisa. .
Nguva yekutumira: Jan-25-2022