I-hot-dip galvanizingyindlela esetyenziswa kakhulu ekukhuseleni intsimbi kunye nentsimbi ekuboleni. Le nkqubo ibandakanya ukuntywiliselwa kwesinyithi kwibhafu ye-zinc enyibilikisiweyo, eyenza uphahla oluqinileyo nolukhuselayo. Intsimbi egqunyiweyo iyakwazi ukumelana nokugqwala kwaye inokumelana neemeko ezinzima zokusingqongileyo. Nangona kunjalo, ukufumana iziphumo ezilungileyo kufuna ukuthotyelwa kwiimfuno ezithile kunye neendlela ezilungileyo. Eli nqaku lijonga kwiimfuno ezibalulekileyo ze-hot-dip galvanizing ukuqinisekisa iziphumo ezisemgangathweni ophezulu nezihlala ixesha elide.
1. Ukukhetha Izinto
Imfuneko yokuqala yokusetyenziswa kwe-hot-dip galvanizing kukukhetha izixhobo ezifanelekileyo. Ayizizo zonke iintsimbi ezifanelekileyo kule nkqubo. Ngokwesiqhelo, intsimbi kunye nentsimbi zezona zinto ziphambili. Ukwakheka kwesinyithi kunokuchaphazela kakhulu umgangatho wesinyithi.ukugaya nge-galvanizingUmzekelo, ubukho bezinto ezifana ne-silicon kunye ne-phosphorus kwintsimbi bunokuchaphazela ubukhulu kunye nokubonakala kwengubo ye-zinc. Ke ngoko, kubalulekile ukukhetha izinto ezineemveliso ezilawulwayo nezaziwayo ukuze kufezekiswe iziphumo ezihambelanayo.
2. Ukulungiswa komphezulu
Ukulungiswa komphezulu linyathelo elibalulekileyoukuntywila okushushuinkqubo. Umphezulu wesinyithi kufuneka ucoceke kwaye ungabi nazinto zingcolisayo ezifana neoyile, igrisi, umhlwa, kunye nesikali sokugaya. Nakuphi na ukungcola kunokuthintela i-zinc ukuba inamathele kakuhle, nto leyo ekhokelela ekubeni umgangatho wokugquma ube mbi. Ukulungiswa komphezulu kudla ngokubandakanya amanqanaba amathathu:
- Ukususa amafutha: Ukususa izinto ezingcolisayo eziphilayo kusetyenziswa izisombululo ze-alkaline okanye izinyibilikisi.
- Ukukha: Ukususa umhlwa kunye ne-scale kusetyenziswa izisombululo ze-asidi, ngesiqhelo i-hydrochloric okanye i-sulfuric acid.
- Ukunyibilikisa: Ukusetyenziswa kwesisombululo sokunyibilikisa, ngokufuthi i-zinc ammonium chloride, ukuthintela ukunyibilikisa ngaphambi kokuba kufakwe kwi-zinc enyibilikisiweyo.
Ukulungiswa komphezulu ngendlela efanelekileyo kuqinisekisa unxibelelwano oluqinileyo phakathi kwesinyithi kunye noqweqwe lwezinc, nto leyo ephucula ukuqina nokusebenza kakuhle kwe-galvanizing.
3. Ulwakhiwo lweBath kunye nobushushu
Ulwakhiwo kunye nobushushu bebhafu ye-zinc zizinto ezibalulekileyo kwinkqubo yokugaya i-hot-dip. Ibhafu ye-zinc kufuneka ibe ne-98% ye-zinc ecocekileyo ubuncinane, kunye nepesenti eseleyo equka izinto ezifana ne-aluminium, i-lead, kunye ne-antimony ukuphucula iipropati zengubo. Ubushushu bebhafu buhlala buphakathi kwe-820°F kunye ne-860°F (438°C ukuya kwi-460°C). Ukugcina ubushushu obuchanekileyo kubalulekile ukuze kufunyanwe ingubo efanayo neyomgangatho ophezulu. Ukuphambuka kunokubangela iziphene ezifana nobukhulu obungalinganiyo, ukunamathelana okungekho semgangathweni, kunye noburhabaxa bomphezulu.
4. Ixesha lokuntywiliselwa emanzini
Ixesha lokuntywiliselwa kwibhafu ye-zinc yenye iparameter ebalulekileyo. Ixhomekeke kubukhulu kunye nobukhulu bebhafu.isinyithi esitsalwa nge-galvanized. Ngokwesiqhelo, isinyithi sintywiliselwa emanzini de sifikelele kubushushu bokuhlamba, nto leyo evumela i-zinc ukuba yenze i-metallurgical bond nentsimbi. Ukuntywiliselwa emanzini kakhulu kunokukhokelela kubukhulu obugqithisileyo bokugqunywa, ngelixa ukuntywiliselwa emanzini kancinci kunokubangela ukhuseleko olunganeleyo. Ke ngoko, ulawulo oluchanekileyo lwexesha lokuntywiliselwa kwamanzi luyimfuneko ukuze kufezekiswe ubukhulu nomgangatho wogqunywa olufunekayo.
5. Unyango Emva Kokugalela I-Galvanizing
Emva kokuba isinyithi sisusiweibhafu ye-zinc, ifumana unyango emva kokufakwa kwe-galvanizing ukuphucula iipropati ze-coating. Olu nyango lungabandakanya ukucima emanzini okanye ukupholisa umoya ukuze kuqiniswe i-zinc coating ngokukhawuleza. Ukongeza, unyango lwe-passivation lungasetyenziswa ukuthintela ukwakheka kwe-white rust, uhlobo lwe-corrosion olunokwenzeka kwiindawo ezisandula ukugalelwa. Ukuphathwa ngokufanelekileyo kunye nokugcinwa kwezinto ze-galvaning kubalulekile ukugcina ukuthembeka kwe-coating.
6. Uhlolo kunye noLawulo loMgangatho
Okokugqibela, uhlolo olupheleleyo kunye nolawulo lomgangatho kubalulekile ukuqinisekisa impumeleloukuntywila okushushuinkqubo. Uhlolo ludla ngokubandakanya uvavanyo olubonakalayo, ukulinganisa ubukhulu, kunye novavanyo lokunamathela. Imigangatho efana ne-ASTM A123/A123M ibonelela ngezikhokelo zobukhulu kunye nomgangatho owamkelekileyo wokugquma. Ukunamathela kule migangatho kuqinisekisa ukuba iimveliso ezigqunyiweyo ziyahlangabezana nemigangatho yokusebenza efunekayo kwaye zibonelela ngokhuseleko oluhlala ixesha elide ekungcoleni.
Isiphelo
Ukugalela intsimbi eshushu yindlela esebenzayo yokukhusela intsimbi kunye nentsimbi ekuboleni, kodwa kufuna ingqalelo enzulu kwiinkcukacha kunye nokunamathela kwiimfuno ezithile. Ukususela ekukhethweni kwezinto kunye nokulungiswa komphezulu ukuya kulwakhiwo lokuhlamba, ixesha lokuntywiliselwa, kunye nonyango emva kokugalela intsimbi, inyathelo ngalinye lidlala indima ebalulekileyo ekufezekiseni uphahla oluphezulu noluhlala ixesha elide lwentsimbi. Ngokulandela ezi ndlela zilungileyo kunye nokugcina ulawulo lomgangatho oluqinileyo, abavelisi banokuqinisekisa ukuba iimveliso zabo zentsimbi zibonelela ngokusebenza kakuhle kunye nobude bexesha.
Ixesha leposi: Septemba-18-2024