Ipayipi elinothayela, eyaziwa nangokuthi ipayipi lensimbi elinamandla, ihlukaniswe yaba izinhlobo ezimbili: i-hot-dip galvanizing kanye ne-electro-galvanizing. I-hot-dip galvanizing inongqimba oluqinile lwezinc futhi inezinzuzo zokunamathela okufanayo, ukunamathela okuqinile, nempilo ende yesevisi. Izindleko zamapayipi e-electro-galvanized ziphansi, indawo engaphezulu ayibushelelezi kakhulu, futhi ukumelana kwayo nokugqwala kubi kakhulu kunamapayipi afakwe emanzini ashisayo. Ukuze kuthuthukiswe ukumelana nokugqwala kwamapayipi ensimbi, amapayipi ensimbi ajwayelekile ayakhanyiswa. Amapayipi ensimbi akhiwe ngensimbi ahlukaniswe abe izinhlobo ezimbili: i-hot-dip galvanizing kanye ne-electro-galvanizing. I-hot-dip galvanizing inongqimba oluqinile lwezinc. Ipayipi elishiselwe eliphephetha umoya-mpilo: lisetshenziswa njengepayipi lokwenza insimbi ephephezelwa umoya-mpilo. Ngokuvamile, kusetshenziswa amapayipi ensimbi ane-diameter amancane ashiselwe. Ukuze uvimbele ukugqwala, ezinye zidinga ukufakwa nge-aluminum ngokuphumelelayo.
(1) Ukukhiqizwa okuhlanzekile okuyingqayizivele
Ipayipi elinothayela lamukela inqubo ye-sulfate electroplating ye-zinc-iron alloy, okusho ukuthi kukhona ukubhoboza okuqondile phakathi kwemisele yomugqa wokukhiqiza kanye nemikhombe ngaphandle kokuphuma noma ukuchichima kwesixazululo. Inqubo ngayinye yenqubo yokukhiqiza yakhiwe uhlelo lokujikeleza. Izisombululo ethangini ngalinye, okuyisisombululo se-asidi ne-alkali, isixazululo se-electroplating, isixazululo sokukhipha ukukhanya kanye nesisombululo sokudlula, njll., zigaywa kabusha kuphela futhi azivuzi noma zikhishwe ngaphandle kwesistimu. Umugqa wokukhiqiza unamathangi okuhlanza ayi-5 kuphela, asebenzisa ukujikeleza. Sebenzisa futhi futhi ukhiphe njalo, ikakhulukazi ezinqubweni zokukhiqiza ezingakhiqizi amanzi angcolile ngaphandle kokuhlanza ngemva kokudlula.
(2) Ubunjalo bezinto zokusebenza ze-electroplating
I-electroplating yamapayipi akhandisiwe kanye ne-electroplating yezintambo zethusi kuyafana nokufakwa kwe-electroplating okuqhubekayo, kodwa imishini yokucwenga ihlukile. Ithangi lokucwenga lidizayinelwe ngomumo womugqa ozacile wentambo yensimbi. Umzimba wethangi mude, ubanzi kodwa awushoni. Phakathi ne-electroplating, izintambo zensimbi zidlula emigodini futhi zendlaleke endaweni ewuketshezi ngendlela eqondile, zigcine ibanga phakathi kwazo. Nokho, ipayipi likathango lihlukile kocingo lwensimbi ngoba linezici zalo ezihlukile futhi imishini yethangi iyinkimbinkimbi kakhulu. Umzimba wethangi wakhiwe izingxenye ezingaphezulu nezingezansi. Ingxenye engenhla ithangi lokucwenga kanti ingxenye engezansi iyithangi lokugcina lokuzungeza isixazululo, okwenza umzimba wethangi ofana ne-trapezoid owumngcingo phezulu futhi ububanzi ngezansi. Kunesiteshi sokusebenza kwepayipi lokufakwa kukagesi ethangini lokucwenga. Kunezimbobo ezimbili ezansi kwethangi ezixhumana nethangi lokugcina eliphansi, futhi zakha uhlelo lokugaywa kabusha kwesisombululo se-plating ngepompo engaphansi kwamanzi. Ngakho-ke, amapayipi ama-galvanized afana ne-iron wire electroplating, futhi izingxenye ezihlanganisiwe zinamandla. Kodwa-ke, ngokungafani ne-iron wire plating, isixazululo se-plating samapayipi anamapayipi nawo anamandla.
(3) Ukwenziwa ngcono kwe-sulfate galvanizing
Izinzuzo ze-sulfate galvanizing ukuthi ukusebenza kahle kwamanje kuphezulu njengo-100% futhi izinga lokubeka liyashesha, elingenakuqhathaniswa nezinye izinqubo zokugaya. Ngenxa yokuthi i-crystallization ye-coating ayilungile ngokwanele, ikhono lokuhlakazeka kanye nekhono lokucwenga elijulile limpofu, ngakho-ke lifaneleka kuphela amapayipi okucwenga kanye nezintambo ezinobunjwa obulula bejometri. Inqubo ye-sulfate electroplating zinc-iron alloy ithuthukisa inqubo yendabuko ye-sulfate galvanizing. Kuphela i-zinc sulfate kasawoti eyinhloko igcinwa, futhi izingxenye ezisele ziyalahlwa. Inani elifanele likasawoti wensimbi liyengezwa kufomula yenqubo entsha ukuze kwakheke ingxubevange ye-zinc-iron enamathela embotsheni yensimbi eyodwa yokuqala. Ukuhlelwa kabusha kwenqubo akulethi nje kuphela izinzuzo zekhono eliphezulu lamanje kanye nezinga lokubeka ngokushesha lenqubo yokuqala, kodwa futhi kuthuthukisa kakhulu ikhono lokuhlakazeka kanye nekhono lokucwebezela elijulile. Esikhathini esidlule, izingxenye eziyinkimbinkimbi azikwazanga ukugqitshwa, kodwa manje zombili izingxenye ezilula neziyinkimbinkimbi zingafakwa, futhi ukusebenza kokuzivikela nakho kuphindwe izikhathi ezingu-3 kuya kwezi-5 kunensimbi eyodwa. Ukuzijwayeza ukukhiqiza kufakazele ukuthi uma kusetshenziselwa ukufakwa kwe-electroplating okuqhubekayo kwezintambo namapayipi, izinhlamvu zokumboza zicolekile futhi zikhanya kakhulu kunezokuqala, futhi izinga lokubeka liyashesha. Ugqinsi lwe-coating lufinyelela isidingo phakathi kwemizuzu emi-2 kuya kwemi-3.
(4) Ukuguqulwa kwe-sulfate zinc plating
I-sulfate electroplating ye-zinc-iron alloy igcina kuphela i-zinc sulfate, usawoti oyinhloko we-sulfate zinc plating. Izingxenye ezisele ezifana ne-aluminium sulfate, i-alum (i-potassium aluminium sulfate), njll. zingangezwa kubhavu wokucwenga ngesikhathi sokwelashwa ukuze kukhiqizwe imvula ye-hydroxide engancibiliki. Susa; ukuze uthole izithasiselo eziphilayo, engeza ikhabhoni ecushiwe eyimpuphu ukuze uyisuse nge-adsorption.
Ukuhlolwa kwabakhiqizi bamapayipi ama-galvanized kuye kwabonisa ukuthi i-aluminium sulfate ne-potassium aluminium sulfate kunzima ukuyikhipha ngokuphelele ngesikhathi esisodwa futhi ibe nomthelela ekukhanyeni kwe-coating, kodwa ayibi kakhulu futhi ingakhishwa ukuze isetshenziswe. Ngalesi sikhathi, ukukhanya kwe-coating kungabuyiselwa ngokwelashwa ngesisombululo. Engeza okuqukethwe kwesithako esidingekayo ngokuya ngenqubo entsha ukuze uqedele ukuguqulwa.
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Isikhathi sokuthumela: Apr-02-2024