Hot-cxuse galvaningkuyindlela esetshenziswa kabanzi yokuvikela insimbi nensimbi kusuka ekugqwaneni. Le nqubo ifaka ukucwilisa insimbi ekugezeni i-zinten ye-zinc, eyakha ukunamathela okuqinile, okuvikelayo. Insimbi yensimbi ephumayo imelana kakhulu nokugqwala futhi ingamelana nezimo zemvelo ezinzima. Kodwa-ke, ukufeza imiphumela efanelekile kudinga ukubambelela kwizidingo ezithile kanye nemikhuba emihle kakhulu. Le ndatshana ingena kwizidingo ezibalulekile zokufaka i-galvanizing eshisayo yokuqinisekisa imiphumela esezingeni eliphakeme neqinile.
1. Ukukhethwa kwezinto ezibonakalayo
Isidingo sokuqala se-tal-dip galvaning ukukhethwa kwezinto ezifanele. Akuzona zonke izinsimbi ezilungele le nqubo. Imvamisa, insimbi nensimbi kungamakhetho aphambili. Ukwakheka kwensimbi kungathinta kakhulu ikhwalithi yegleganing. Isibonelo, ukuba khona kwezinto ezinjenge-silicon ne-phosphorus ngensimbi kungathonya ubukhulu nokubukeka kwe-zinc coating. Ngakho-ke, kubalulekile ukukhetha izinto ezinokulawulwa okulawulwayo nokwaziwayo ukuze uzuze imiphumela engaguquki.
2. Ukulungiselela okungaphezulu
Ukulungiselela okungaphezulu kwesinyathelo esibucayi kuhot-cxuse galvaninginqubo. Ingaphezulu lensimbi kufanele lihlanzeke futhi likhululekile ekungcolisweni okufana namafutha, amafutha, ukugqwala, nokugaya isilinganiselo. Noma yikuphi ukungcola kungavimba i-zinc ukuthi inganamatheli kahle, kuholele kwikhwalithi embi yokuhlangana. Ukulungiswa okungaphezulu kuhlanganisa izigaba ezintathu:
- I-Defries: Ukususwa kokungcola kwe-organic kusetshenziswa izixazululo ze-alkali noma izixazululo.
- I-Pickling: Ukususwa kokugqwala kanye nesilinganiso usebenzisa izixazululo ze-acidic, imvamisa i-hydrochlecloric noma i-sulfuric acid.
- I-Fluxing: Ukusetshenziswa kwesisombululo se-flux, imvamisa i-zinc ammonium chloride, ukuvikela i-oxidation ngaphambi kokucwiliswa ku-zinc ebiwe.
Ukulungiselela okungaphezulu komhlaba kuqinisekisa isibopho esiqinile phakathi kwensimbi kanye ne-zinc coating, ukuthuthukisa ukuqina kanye nokusebenza kahle kwe-galvanizing.
I-3. Ukwakhiwa kokugeza kanye nokushisa
Ukwakheka kanye nokushisa kwezinga lokugeza le-zinc kuyizinto ezibalulekile kwinqubo eshisayo ye-galvaning. Ukugeza kwe-zinc kufanele kuqukathe okungenani ama-zinc amsulwa ama-98%, ngamaphesenti asele aqukethe izinto ezihlanganisa i-aluminium, ukuhola, kanye ne-antimony ukuthuthukisa izakhiwo zenhlanganisela. Ukushisa okugeza kuvame ukusukela phakathi kuka-820 ° F no-860 ° F (438 ° C kuya ku-460 ° C). Ukugcina izinga lokushisa elifanele kubalulekile ukuze kufezeke umfaniswano kanye nekhwalithi ephezulu. Ukuphambuka kungaholela ekulimaleni okufana nobukhulu obungalingani, ukunamathela kabi, kanye nobulukhuni bendawo.
4. Isikhathi sokuntylika
Isikhathi sokuntywila eZinn Bath singenye enye ipharamitha ebucayi. Kuya ngobukhulu nobukhulu beInsimbi ihamba nge-galvanized. Ngokuvamile, insimbi icwiliswa kuze kube yilapho ifinyelela amazinga okushisa okugeza, okuvumela i-zinc ukwakha ibhondi yensimbi enensimbi. Ukucwiliswa ngokweqile kungaholela ekukhulumeni ngokweqile, ngenkathi ukucwiliswa ngaphansi kokucwiliswa kungaholela ekuvikelweni okunganele. Ngakho-ke, ukulawula okuqondile kwesikhathi sokuntylika isikhathi kuyadingeka ukufeza ubukhulu be-coation kanye nekhwalithi.
5. Ukwelashwa kwe-post-galvaning
Ngemuva kokuthi insimbi isuswe kuI-zinc bageza, ibhekana nokwelashwa ngemuva kokukhulisa izakhiwo zenhlanganisela. Lezi zindlela zokwelapha zingafaka ukujuluka emanzini noma ukupholisa komoya ukuze uqinise ukuhlanganisa i-zinc ngokushesha. Ngaphezu kwalokho, ukwelashwa kokuphambanisa kungafakwa ukuvikela ukwakheka kokugqwala okumhlophe, uhlobo lokugqwala olungenzeka ezindaweni ezisanda kufakwa. Ukusingathwa okufanele nokugcinwa kwezinto zokwakha i-galvanized nakho kubalulekile ukuze kugcinwe ubuqotho be-coating.
6. Ukuhlola nokulawulwa kwekhwalithi
Ekugcineni, ukuhlolwa okuphelele nokulawulwa kwekhwalithi kubalulekile ukuqinisekisa ukuphumelela kwehot-cxuse galvaninginqubo. Ukuhlola kuvame ukubandakanya ukuhlolwa okubukwayo, ukukalwa kokuqina, kanye nokuhlolwa kokunamathela. Izindinganiso ezifana ne-ASTM A123 / A123M zinikeza imihlahlandlela yokubumbana okwamukelekayo kwe-coating kanye nekhwalithi. Ukunamathela kulezi zindinganiso kuqinisekisa ukuthi imikhiqizo egciniwe ihlangabezana nenqubo yokusebenza edingekayo futhi ihlinzeke ukuvikela okuhlala isikhathi eside ekubhujisweni.
Ukugcina
I-Hot-Dip Galvaning iyindlela ephumelelayo yokuvikela insimbi nensimbi kusuka ekugqwalisweni, kepha kudinga ukunakwa ngokucophelela imininingwane nokunamathela kwizidingo ezithile. Ukusuka ekukhethweni kwezinto ezibonakalayo nasekulungiseleleni okungaphezulu kokubhalwa kokugeza, isikhathi sokuntywila, kanye nokwelashwa kwangemva kokuhamba ngezinyawo, isinyathelo ngasinye sidlala indima ebalulekile ekuzuzeni izigqoko ezisezingeni eliphakeme neziqinile. Ngokulandela le mikhuba emihle kakhulu nokugcina ukulawulwa kwekhwalithi okuqinile, abakhiqizi bangaqinisekisa ukuthi imikhiqizo yabo ehleliwe iletha ukusebenza kahle nokuphila isikhathi eside.
Isikhathi Sokuposa: Sep-18-2024