Umbhobho wesinyithi
Inkcazelo yeemveliso
I. Udidi oluPhambili: Udidi ngokweNkqubo yokuGqibela iGalvanizing
Umbhobho weGalvanised wahlulwe kakhulu kwiindidi ezimbini: umbhobho wegalvanised oshushu kunye nombhobho wegalvanised obandayo. Ezi ntlobo zimbini zahluke kakhulu kwinkqubo, ukusebenza, kunye nokusetyenziswa:
• Umbhobho we-galvanized oshushu (umbhobho we-galvanized oshushu): Lonke umbhobho wentsimbi untywiliselwa kwi-zinc enyibilikisiweyo, nto leyo eyenza umaleko we-zinc ofanayo, oxineneyo phezu komphezulu. Lo maleko we-zinc uhlala ungaphezulu kwe-85μm ubukhulu, unamathela ngokuqinileyo kwaye unokumelana nokugqwala okuhle kakhulu, kwaye ubomi benkonzo buyiminyaka engama-20-50. Okwangoku luhlobo oluphambili lombhobho we-galvanized kwaye usetyenziswa kakhulu ekusasazweni kwamanzi negesi, ekukhuseleni umlilo, nakwizakhiwo zezakhiwo.
• Umbhobho we-galvanized obandayo (umbhobho we-electrogalvanized): Umaleko we-zinc ufakwa kumphezulu wombhobho wentsimbi nge-electrolysis. Umaleko we-zinc uncinci kakhulu (ngesiqhelo yi-5-30μm), unamathele kancinci, kwaye awuniki ukumelana nokugqwala okuncinci kakhulu kunombhobho we-galvanized oshushu. Ngenxa yokusebenza kwawo okungenamsebenzi, imibhobho ye-galvanized okwangoku ayivumelekanga ukusetyenziswa kwiindawo ezifuna ukumelana nokugqwala okuphezulu, njengemibhobho yamanzi okusela. Zisetyenziswa kuphela ngobuninzi obuncinci kwiindawo ezingathwali mthwalo kwaye ezingahambelani namanzi, ezifana nokuhombisa kunye neebrakethi ezikhaphukhaphu.
II. Iingenelo eziphambili
1. Ukumelana Okuqinileyo Nokugqwala: Umaleko we-zinc uyawususa umbhobho wentsimbi emoyeni nasekufumeni, nto leyo ethintela ukugqwala. Iipayipi ezifakwe i-hot-dip galvanized, ngokukodwa, zinokumelana nokusetyenziswa ixesha elide kwiindawo ezinzima ezifana neendawo ezifumileyo nezangaphandle.
2. Amandla Aphezulu: Zigcina iipropati zoomatshini zeepayipi zentsimbi yekhabhoni, zinokumelana noxinzelelo oluthile kunye nobunzima, nto leyo ezenza zilungele ukusetyenziswa njengenkxaso yesakhiwo kunye nokuthuthwa kolwelo.
3. Ixabiso Elifanelekileyo: Xa kuthelekiswa nemibhobho yentsimbi engagqwaliyo, imibhobho ye-galvanised ineendleko eziphantsi zemveliso. Xa kuthelekiswa nemibhobho yentsimbi ye-carbon eqhelekileyo, ngelixa iindleko zenkqubo ye-galvanizing zisanda, ubomi bayo benkonzo buyandiswa kakhulu, nto leyo ebangela ukuba iindleko zisebenze kakuhle.
III. Izicelo eziphambili
• Ishishini Lokwakha: Lisetyenziswa kwimibhobho yokukhusela umlilo, imibhobho yokuhambisa amanzi kunye nemibhobho yokukhupha amanzi (amanzi angengomanzi okusela), imibhobho yokufudumeza, izakhelo zokuxhasa udonga lwekhethini, njl.njl.
• Icandelo lezemizi-mveliso: Lisetyenziswa njengemibhobho yokuthutha ulwelo (njengamanzi, umphunga, nomoya ocinezelweyo) kunye nezibiyeli zezixhobo kwiindawo zokusebenzela zasefektri.
• Ezolimo: Zisetyenziswa kwimibhobho yokunkcenkceshela yasefama, kwizakhelo zokuxhasa izityalo eziluhlaza, njl.
• Uthutho: Isetyenziswa ngobuninzi obuncinci njengemibhobho yesiseko seendlela zokukhusela kunye neepali zezibane zasezitalatweni (ikakhulu imibhobho ye-hot-dip galvanized).
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