I-hot-dip galvanizingkuyinqubo lapho into yensimbi noma ingxenye enendawo ehlanzekile icwiliswa kwisisombululo se-zinc esincibilikisiwe, futhi ungqimba lwezinki lwensimbi lwakhiwe phezulu ngokusabela ngokomzimba namakhemikhali esibonakalayo. I-hot-dip galvanizing, eyaziwa nangokuthi i-hot-dip galvanizing kanye ne-hot-dip galvanizing, iyindlela ephumelelayo yensimbi yokulwa nokugqwala, esetshenziselwa ikakhulukazi ukulwa nokugqwala kwezakhiwo zensimbi, izinsiza kanye nezinto ezisetshenziswa ezimbonini ezihlukahlukene. Ngakho yiziphi izicihot-dip lashukumisa ipayipi lensimbi engenamthungo?

1. Iziqephu ezimpunga ezinosayizi abahlukene ebusweni bepayipi lensimbi engenamthungo umehluko wombala wokugalela uthayela, okuyinkinga enzima embonini yamanje yokugalela amalahle, ikakhulukazi ehlobene nezakhi zokulandelela eziqukethwe epayipini lensimbi ngokwalo kanye nezingxenye ezikuwo. okugeza zinc. Ibala akuthinti ukusebenza kwe-anti-corrosion yepayipi yensimbi, umehluko kuphela ekubukeni.

2. Kukhona amamaki aphakanyisiwe asobala kancane kancane ebusweni bepayipi ngalinye lensimbi engenamthungo, wonke ayizinc, akhiwa ngokupholisa nokuqiniswa koketshezi lwezinki olugeleza lwehle ngodonga lwamapayipi ngemva kokukhishwa kwepayipi lensimbi engenamthungo ngaphandle. ibhodwe zinc.

4. Amanye amakhasimende azosebenzisa ukuxhuma kwe-groove ohlelweni lokusebenzisa ipayipi lensimbi engenamthungo ukuze acindezele umsele. Ngenxa yogqinsi lwezinc ewugqinsi lwepayipi lensimbi elingenamthungo elidiphu elishisayo, ngaphansi kwesenzo samandla angaphandle abhubhisayo, ingxenye yoqweqwe lukathayela izoqhekeka futhi ixebuke, engahlanganise lutho nekhwalithi yepayipi lensimbi engenamthungo ngokwalo. .

5. Amanye amakhasimende azosabela ngokuthi kunoketshezi oluphuzi epayipini lensimbi elingenamthungo (lolu ketshezi lubizwa ngokuthi i-passivation liquid), olungadlula ingaphezulu lensimbi. Imvamisa isetshenziselwa ukwelashwa kwangemuva kokufakwa kwe-galvanized, i-cadmium nezinye izigqoko. Inhloso iwukwenza isimo esingaphezulu kwendawo yokumboza engavimbela ukusabela okuvamile kwensimbi, ithuthukise ukumelana kwayo nokugqwala, futhi kwandise ubuhle bomkhiqizo. Ingakwazi ukuthuthukisa ngokuphumelelayo ukumelana nokugqwala kwepayipi lensimbi futhi yandise impilo yesevisi ye-workpiece.

Umthelela wokuvikela wongqimba olunothayela wediphu eshisayo epayipini lensimbi engenamthungo ungcono kakhulu kunalowo kapende noma ungqimba lwepulasitiki. Enqubweni yokufaka i-hot-dip galvanizing, i-zinc ihlukana nensimbi ukuze yakhe ungqimba oluhlanganisiwe lwe-zinc-iron intermetallic, okungukuthi, ungqimba lwengxubevange. I-alloy layer iboshwe ngensimbi kunsimbi ne-zinc, enamandla kunesibopho esiphakathi kukapende nensimbi. Isendlalelo esinezinsika ezishisayo sivezwa endaweni esemoyeni futhi asiwi amashumi eminyaka kuze kube sigqwala ngokuphelele ngokwemvelo.

Ubuchwepheshe be-hot-dip galvanizing ofipayipi lensimbi engenamthungongokuvamile ingahlukaniswa ibe i-dip plating kanye ne-flating plating:

1. Dip Plating. Pholisa ngamanzi ngqo ngemva kokucwiliswa. Ubukhulu obujwayelekile bengqimba ye-zinc bukhulu kunama-microns angu-70, ngakho-ke izindleko zokugaya ziphezulu, futhi inani le-zinc likhulu. Endaweni evamile yomoya osemkhathini iminyaka engaphezu kwengu-50, kunemikhondo esobala yokugeleza kwe-zinc, futhi ipayipi lensimbi elide kunawo wonke elingenamthungo lingafakwa ku-16m.

2. Blow Plating. Ngemva kokuvuthela, ingaphandle liyashaywa futhi ingaphakathi lipholile. Ubukhulu obujwayelekile bengqimba ye-zinc bukhulu kunama-microns angama-30, izindleko ziphansi, futhi ukusetshenziswa kwe-zinc kuncane. Ngemva kweminyaka engaphezu kwengu-20 yokusetshenziswa endaweni evamile yomoya, cishe akukho mkhondo woketshezi lwezinc ongabonwa. Ulayini ojwayelekile wokukhiqiza i-zinc oshaywayo 6-9m.