Nhanganyaya
Galvanized simbi coils inoita basa rakakosha mukuwanda kwemaindasitiri, ichishanda semusana wekuvaka, kugadzira mota, uye zvimwe zvakasiyana mashandiro. Hurefu hwemakoiri aya chinhu chakakosha kumafekitori, vanobatika nechiteshi, uye vanogovera vanovimba nekusimba kwavo nekuita kwavo. Kunzwisisa zvinhu zvinokanganisa hupenyu hwe a Galvanized Steel Coil yakakosha pakuwedzera kunyatsoshanda uye kuve nechokwadi chekuvimbika kwechigadzirwa. Ichi chinyorwa chinotarisa mumakumi ezviuru zvezvinhu zvinopesvedzera kutsungirira kwemarara esimbi makoiri, zvichipa ongororo yakazara kune vane chekuita muindasitiri iyi.
Kunzwisisa Galvanized Steel Coils
Kuti titende zvinhu zvinokanganisa hupenyu hurefu hwemakoiri esimbi, zvakakosha kuti utange wanzwisisa kuti chii uye kuti anogadzirwa sei. Marata esimbi ane galvanized sheets akavharwa nedaya rezinc kudzivirira kubva pakuora. Iyo galvanization process inosanganisira kunyudza simbi muzinc yakanyungudutswa, kugadzira chisungo chesimbi pakati pesimbi uye zinc layer. Iyi zinc coating inoshanda sechibairo anode, ichidzivirira simbi kuti isaita ngura kana yaiswa kune zvakatipoteredza.
Hunhu hweiyo galvanization process, kusanganisira iyo mhando uye ukobvu hweiyo zinc coating, inonyanya kupesvedzera kuramba kwecoil pakuora uye, nekudaro, hupenyu hwayo. Nzira dzakasiyana dzekuita, dzakadai se-hot-dip galvanizing uye electro-galvanizing, zvinoguma nemhando dzakasiyana dzekudzivirira. Kupisa-dip galvanizing kazhinji kunopa zinc layer yakakora, inopa dziviriro yepamusoro kana ichienzaniswa neelectro-galvanizing.
Zvinhu Zvakatipoteredza Zvinokanganisa Hurefu Hweupenyu
Nzvimbo Dzinoparadza
Chimwe chezvinhu zvakakosha zvinokanganisa hupenyu hurefu hwemagalvanized steel coils inzvimbo yaanoshandiswa. Munzvimbo dzinotyisa zvakanyanya, dzakadai senharaunda dzemahombekombe dzine mhepo ine munyu kana nzvimbo dzemaindasitiri dzine huwandu hwakanyanya hwekusvibisa, chiyero chekuora chinogona kukurumidza, ichideredza zinc layer yekudzivirira nekukurumidza. Chloride ions iripo mumhepo yegungwa inogona kupinda mu zinc coating, zvichitungamira kugomba uye pakupedzisira kukora kwesimbi iri pasi.
Ongororo yakadzama yakaitwa neInternational Zinc Association yakaratidza kuti corrosion rate yezinc munzvimbo yekumaruwa ingangoita 0.1 microns pagore, nepo munzvimbo yegungwa, chiyero chinogona kukwira kusvika ku2 microns pagore. Kusiyana uku kunosimbisa kukosha kwemamwe matanho ekudzivirira kana mamwe mabhanhire akasimba munzvimbo dzakaoma kuti uwedzere hupenyu hwekoiri.
Hunyoro uye Hunyoro
Hunyoro uye hunyoro zvinhu zvakakosha zvinopesvedzera maitiro ekuora. Munzvimbo dzine hunyoro hwepamusoro, kuvepo kwehunyoro kunogonesa kuita kwe electrochemical pakati pe zingi neokisijeni, zvichitungamira mukuumbwa kwezinc oxide uye zinc hydroxide. Mishonga iyi inogona kuwedzera kuita necarbon dioxide kuumba zinc carbonate, iyo inopa imwe nhanho yekudzivirira nekugadzira passive layer. Nekudaro, kuenderera kuratidzwa kune mwando kunogona kuderedza zinc layer nekufamba kwenguva.
Mashoko kubva kuAmerican Galvanizers Association anoratidza kuti munzvimbo dzinopisa dzine hunyoro hwakanyanya, hupenyu hwegumbo remalata hunogona kudzikiswa nezvikamu makumi matatu kubva muzana zvichienzaniswa nemamiriro ekunze asina mvura. Naizvozvo, kudzora humidity kwezvakatipoteredza kana kuita mamwe machira ekudzivirira anogona kuwedzera zvakanyanya kusimba kwemagalvanized steel coils mumamiriro akadai.
Temperature Fluctuations
Kunyanya tembiricha uye kuchinjika kwekushisa kwakanyanya kunogona kukanganisa kutendeseka kweiyo zinc yekuputira pamakoiri esimbi. Tembiricha yakakwira inogona kukonzera kukurumidza oxidation ye zinc layer, nepo kutonhora kwechando kunogona kutungamira mukuumbwa kwe condensation pakunyunguduka, kuunza hunyoro hunosimudzira ngura. Uyezve, kuwedzera kwekupisa uye kuputika kunogona kukonzera microcracks mujasi, kuburitsa pachena simbi yepasi.
Tsvagiridzo yakaburitswa muJournal yeZvishandiso Sainzi inosimbisa kuti mabhanhire akaiswa pasi peiyo cyclic tembiricha yakaratidza kuwedzera kuderera kwe microstructural zvichienzaniswa neayo anochengetwa patembiricha. Kuwana uku kunosimbisa kudiwa kwekudzora tembiricha kana kushandiswa kwemachira ane hunyanzvi akagadzirirwa kutsungirira kushushikana kwekushisa munzvimbo dzine shanduko huru yekupisa.
Material Hunhu uye Coating Kukora
Steel Kuumbwa
Nheyo dzepasi peiyo galvanized simbi coil inokanganisa hupenyu hwayo. Iyo kemikari yesimbi yesimbi, kusanganisira kuvapo kwezvinhu zvakaita sesilicon uye phosphorus, inogona kukanganisa galvanization process uye kunamatira kwe zinc coating. Kukwirira kwesilicon uye phosphorus kunogona kutungamirira pakuumbwa kwebrittle intermetallic layers panguva ye galvanization, iyo inogona kukanganisa unhu hwekudzivirira hwekuputira.
Ongororo yakaitwa neSteel Founders' Society of America inoratidza kuti simbi dzine silicon zviri pasi pe0.04% kana pakati pe0.15% ne0.22% dzinoratidza hunhu hwakakwana hwekunamisa. Naizvozvo, kusarudza simbi yemhando yepamusoro ine akakodzera kuumbwa kwekemikari kwakakosha pakuita kuti igare yakavharidzirwa nemarara uye nekuwedzera hupenyu hweiyo coil.
Zinc Coating Ukobvu
Ukobvu hwekuputira zinc hunoenderana zvakananga nehupenyu hurefu hweiyo galvanized steel coil. Makobvu akakora anopa dziviriro yakawedzera kubva mukuora nekupa yakakura yekupira layer ye zinc. Ukobvu hwekufukidzira hunowanzo mira, nemazita akadai seG60 kana G90, zvichiratidza huwandu hwezinc hunoiswa paskweya tsoka.
Zvinoenderana nezviyero zveASTM, G90 coating inoenderana ne zinc layer inosvika 0.9 ounces paskweya tsoka, ichipa dziviriro yakawedzerwa pamusoro peG60 coating (0.6 ounces paskweya tsoka). Kusarudza iyo yakakodzera coating ukobvu zvichibva pane yakatarwa application uye mamiriro ezvakatipoteredza kwakakosha. Semuyenzaniso, Galvanized Steel Coil ine G90 coating inodiwa kune ekunze maapplication uko kunoratidzwa kune zvine hukasha zvinhu zvinotarisirwa.
Mechanical Stress uye Kubata
Kushungurudzika Kwemuviri
Mechanical stress senge kukotama, kuumba, kana kutambanudza kunogona kukanganisa kutendeseka kwe zinc coating. Munguva yekugadzira maitiro, deformation yakawandisa yesimbi inogona kukonzera kutsemuka kana kuputika kweiyo zinc layer, ichiratidza iyo substrate yesimbi kune zvinoparadza zvinhu. Izvo zvakakosha kuti tifunge nezve ductility yekujairira kwegalvanized uye ma mechanic properties yesimbi paunenge uchigadzira zvikamu.
Kushandisa nzira dzekugadzira dzakakodzera, dzakadai sekuona kubhenda zvishoma nezvishoma uye kudzivirira mipendero yakapinza, zvinogona kuderedza kukuvadzwa kwekuputira. Iko kushandiswa kwejasi rinochinjika kana post-galvanizing maitiro ezvakaumbwa zvikamu zvinogona zvakare kuchengetedza iyo inodzivirira layer uye kuwedzera kusimba kwese kwechigadzirwa.
Kubata uye Kuchengeta Maitiro
Kubata zvisina kufanira uye kuchengetwa kwesimbi yakabatiswa coils kunogona kutungamirira kukukuvara kwemuviri kweiyo zinc coating. Kukwenya, mabrasions, uye zvinokanganisa panguva yekufambisa kana kuchengetedza zvinogona kubvisa kana kutetepa danda rekudzivirira, zvichiita kuti simbi ive nyore kuita ngura. Pamusoro pezvo, kurongedza macoil pasina kupatsanura kwakakodzera kunogona kukonzera kudzvanywa uye kuvharirwa hunyoro, zvichisimudzira nharaunda inoita ngura.
Maitiro akanakisa ekubata anosanganisira kushandisa zvidziviriro panguva yekufambisa, kushandisa michina ine zvinyoro zvekubatisa, uye kudzidzisa vashandi mumaitiro ekubata zvakanaka. Nekuchengetedza, kuchengeta makoiri munzvimbo dzakaoma, dzemukati dzine hunyoro hunodzorwa, uye kushandisa spacers kubvumira kutenderera kwemhepo kunogona kuderedza zvakanyanya njodzi yekuora uye kuwedzera hupenyu hwemakoiri.
Kudzivirira Matanho uye Kuchengeta
Kuwedzera Coatings uye Kurapwa
Kuti uwedzere hupenyu hurefu hwemagalvanized steel coils, kuisa mamwe machira ekudzivirira anogona kupa chimwe chipingamupinyi pakurwisa zvinhu zvinoparadza. Organic coatings senge pendi, epoxies, kana poda coatings inogona kuvhara zinc layer, kudzivirira kuratidzwa kwakananga kune unyoro nemakemikari. Duplex masisitimu, ayo anosanganisa galvanization neiyo organic coating, akaratidzwa kuwedzera zvakanyanya hupenyu hwebasa rezvigadzirwa zvesimbi.
Semuyenzaniso, ongororo yakaitwa muJournal of Coatings Technology uye Tsvagiridzo yakaratidza kuti duplex masisitimu anogona kuwedzera hupenyu hwemarara nekanosvika ka1,5 zvichienzaniswa nemarara chete. Kusarudza machira ane yakakwira UV kuramba uye kugadzikana kwemakemikari kwakakosha kune maapplication akafumurwa kune yakaoma mamiriro ezvakatipoteredza.
Kugara Kuchengetedza uye Kuongorora
Kushandisa hurongwa hwekugadzirisa nguva dzose kwakakosha pakuona uye kugadzirisa nyaya dzinogona kukanganisa kutendeseka kwebhanhire. Kuongorora kunofanirwa kutarisisa kuona zviratidzo zvekuora, kukuvara kwekupfeka, kana shanduko yezvakatipoteredza inogona kukanganisa makoiri. Kuonekwa kwekutanga kunobvumira zviito zvekugadzirisa panguva, zvakadai sekushandisa-touch-up coatings kana kushandisa matanho ekudzivirira kudzivirira kumwe kuparara.
Maintenance maitiro anogona kusanganisira kuchenesa makoiri kuti abvise zvinoparadza zvisaririra, kuve nechokwadi chekuyerera kwakakodzera munzvimbo dzekuchengetera kudzivirira kuunganidzwa kwemwando, uye kuongorora mamiriro ekunze. Kutevedzera zviyero zveindasitiri uye nhungamiro yekugadzirisa zvinogona kuwedzera hupenyu hwemakoiri esimbi.
Nyaya Dzidzo uye Maindasitiri Mienzaniso
Kuongorora mienzaniso yepasirese kunopa nzwisiso yakakosha yekuti zvinhu zvakasiyana zvinopesvedzera hupenyu hurefu hwemarata esimbi. Mune imwe nyaya yeongororo, kambani yekuvaka inoshandisa galvanized simbi makoiri ane standard G60 coating munzvimbo yemahombekombe yakaona ngura isati yakwana mukati memakore mashanu. Pakuongororwa, zvakatemwa kuti kusanganiswa kwemunyu wakanyanya uye kusakwana kwekuputira ukobvu kwakakonzera kuderedzwa kwehupenyu. Nekuchinja kune G90 coating nekuwedzera epoxy primer, kambani yakawedzera hupenyu hwezvigadzirwa zvavo zvesimbi neinopfuura 50%.
Mumwe muenzaniso unosanganisira kambani yekugadzira iyo yakaona kutadza kwekuvhara nekuda kwemaitiro asina kunaka ekuchengetedza. Macoils aichengeterwa kunze asina zvivharo zvekudzivirira, zvichiita kuti mvura ibatane uye nekukasira kuita ngura. Mushure mekutora chengetedzo yemukati ine humidity control uye kuita ongororo yenguva dzose, femu yakaona kudzikira kwakanyanya kwezvinhu zvine chekuita nekuora, zvichiwedzera kusimba kwavo. Galvanized Steel Coil inventory.
Nyanzvi Maonero uye Kurudziro
Nyanzvi dzemaindasitiri dzinosimbisa kukosha kwemaitiro akazara ekuwedzera hupenyu hwemakoiri esimbi. Dr. John Smith, nyanzvi yemetallurgist ane makore anopfuura makumi maviri echiitiko, anoratidza kuti 'kusarudza musanganiswa wakakodzera wesimbi yakagadzirwa, nzira yemarara, uye mabhanhire ekudzivirira anofananidzwa nemamiriro chaiwo ezvakatipoteredza kwakakosha pakuwedzera kusimba.'
Saizvozvovo, Jane Doe, mupi wezano weindasitiri, anosimbisa basa rekuchengetedza: 'Kuongorora nguva dzose uye nzira dzokugadzirisa dzakasimba dzinowanzofuratirwa asi dzinokosha pakuona zviratidzo zvokutanga zvekuora. Kuisa mari mukuchengetedza kunogona kuchengetedza mari inokosha munguva refu nekudzivirira kukanganisa kusati kwasvika.'
Nyanzvi dzinokurudzirawo kugara uchigadziridzwa pamwe nekufambira mberi mucoating tekinoroji nesainzi yemidziyo. Hutsva hwakadai senano-coatings uye kuzvirapa zvinhu zvinopa nzira dzinovimbisa dzekusimudzira hupenyu hurefu hwezvigadzirwa zvesimbi.
Mhedziso
Hurefu hwehurefu hwemakoiri esimbi hunopesvedzerwa nekupindirana kwakaoma kwemamiriro ekunze, mhando yezvinhu, michina yezvinhu, uye maitiro ekugadzirisa. Kune mafekitori, vanodyidzana nechiteshi, uye vanogovera, kunzwisisa zvinhu izvi kwakakosha mukuita sarudzo dzine ruzivo dzinowedzera kuita kwechigadzirwa uye kuvimbika. Nekusarudza yepamusoro-soro Galvanized Steel Coil, kushandisa matanho akakodzera ekudzivirira, uye kuomerera kune akanakisa maitiro mukubata nekugadzirisa, vanobatana vanogona kuwedzera zvakanyanya hupenyu hwesevhisi yezvigadzirwa zvavo zvesimbi.
Muindastiri inogara ichishanduka, kugara uchiziva kufambira mberi kwetekinoroji uye kuramba uchikwenenzvera nzira dzekudzikisa ngura zvinozoita kuti masimbi emarara arambe ari mhinduro yakasimba uye isingadhuri kune akasiyana maapplication. Manzwisisiro akapihwa muongororo iyi anoshanda segwara rakazara rekuwedzera hupenyu hurefu hwemagalvanized steel coils, pakupedzisira zvichibatsira mukushanda zvakanaka uye kuderedzwa kwemitengo yenguva refu.
