I-Hot-dip galvanizingyindlela esetyenziswa kakhulu ekukhuseleni intsimbi kunye nentsimbi ekudlekeni. Le nkqubo ibandakanya ukuntywiliselwa kwesinyithi kwindawo yokuhlambela ye-zinc etyhidiweyo, eyenza i-robust, i-coating yokukhusela. Isiphumo sesinyithi segalvanized simelana kakhulu nomhlwa kwaye sinokumelana neemeko ezibuhlungu zokusingqongileyo. Nangona kunjalo, ukufikelela kwiziphumo ezizezona zilungileyo kufuna ukuthotyelwa kweemfuno ezithile kunye nezenzo ezingcono. Eli nqaku ligocagoca kwiimfuno eziyimfuneko zokugalela amanzi ashushu ukuze kuqinisekwe ngeziphumo ezikumgangatho ophezulu kunye nezizinzileyo.
1. Ukukhethwa kwezinto
Imfuno yokuqala ye-galvanizing ye-hot-dip kukukhethwa kwezinto ezifanelekileyo. Ayizizo zonke iintsimbi ezifanelekileyo kule nkqubo. Ngokuqhelekileyo, intsimbi kunye nentsimbi ngabaviwa abaphambili. Ukubunjwa kwesinyithi kunokuchaphazela kakhulu umgangatho weukugalela. Ngokomzekelo, ubukho bezinto ezifana ne-silicon kunye ne-phosphorus kwintsimbi bungachaphazela ubukhulu kunye nokubonakala kwe-zinc coating. Ke ngoko, kubalulekile ukukhetha izixhobo ezinemixholo elawulwayo neyaziwayo ukufezekisa iziphumo ezifanayo.
2. Ukulungiswa komphezulu
Ukulungiswa komphezulu linyathelo elibalulekileyo kwieshushu-dip galvanizinginkqubo. Umphezulu wesinyithi kufuneka ucoceke kwaye ungabi nazingcolisi ezifana ne-oyile, igrisi, irusi, kunye nesikali sokusila. Nakuphi na ukungcola kunokuthintela i-zinc ekubambeni ngokufanelekileyo, okukhokelela kumgangatho ophantsi wokugquma. Ukulungiswa komphezulu ngokuqhelekileyo kubandakanya izigaba ezithathu:
- Ukunciphisa: Ukususwa kwezinto ezingcolisayo eziphilayo kusetyenziswa izisombululo zealkaline okanye izinyibilikisi.
- Pickling: Ukususwa komhlwa kunye nesikali kusetyenziswa izinyibiliko ezineasidi, ngokuqhelekileyo ihydrochloric okanye sulfuric acid.
- I-Fluxing: Ukusetyenziswa kwesisombululo se-flux, rhoqo i-zinc ammonium chloride, ukuthintela i-oxidation ngaphambi kokuntywiliselwa kwi-zinc etyhidiweyo.
Ukulungiswa kwendawo efanelekileyo kuqinisekisa ukudibanisa okuqinileyo phakathi kwetsimbi kunye ne-zinc coating, ukuphucula ukuqina kunye nokusebenza kakuhle kwe-galvanizing.
3. Ukumila kwiBhafu kunye nobushushu
Ukubunjwa kunye nobushushu bebhafu ye-zinc zizinto ezibalulekileyo kwinkqubo ye-galvanizing ye-hot-dip. Ibhafu ye-zinc kufuneka iqulathe ubuncinci be-98% ye-zinc ecocekileyo, kunye nepesenti eseleyo equka izinto ezifana ne-aluminiyam, ilothe, kunye ne-antimony ukuphucula iimpawu zokwaleka. Iqondo lobushushu lokuhlambela lihlala liphakathi kwama-820°F nama-860°F (438°C ukuya kuma-460°C). Ukugcina ubushushu obuchanekileyo kubalulekile ekufezekiseni iyunifomu kunye nomgangatho ophezulu wokugquma. Ukutenxa kunokubangela iziphene ezifana nobungqingqwa obungalinganiyo, ukuncamathela okulambathayo, kunye noburhabaxa bomphezulu.
4. Ixesha lokuntywiliselwa
Ixesha lokucwiliswa kwibhafu ye-zinc yenye iparameter ebalulekileyo. Kuxhomekeke kubukhulu kunye nobukhulu beintsimbi igalelwa. Ngokuqhelekileyo, isinyithi sintywiliselwa de sifikelele kwiqondo lokushisa lokuhlambela, ukuvumela i-zinc ukuba yenze i-metallurgical bond kunye nentsimbi. Ukuntywiliselwa ngokugqithisileyo kunokukhokelela kubukhulu obugqithileyo bokugquma, ngelixa ukuntywiliselwa ngaphantsi kwamanzi kunokubangela ukhuseleko olunganelanga. Ke ngoko, ulawulo oluchanekileyo lwexesha lokuntywiliselwa luyimfuneko ukufezekisa ubukhulu obufunwayo bokwambathisa kunye nomgangatho.
5. Unyango lwasemva kweGalvanizing
Emva kokuba isinyithi sisusiwe kwiibhafu ye-zinc, ifumana unyango lwe-post-galvanizing ukunyusa iipropati zokugquma. Olu nyango lunokubandakanya ukucima emanzini okanye ukupholisa umoya ukuqinisa i-zinc coating ngokukhawuleza. Ukongeza, unyango lwe-passivation lunokusetyenziswa ukunqanda ukubunjwa komhlwa omhlophe, uhlobo lokubola olunokuthi lwenzeke kwiindawo ezisanda kufakwa igalvanized. Ukuphathwa ngokufanelekileyo kunye nokugcinwa kwezinto ezifakwe i-galvanized nazo zibalulekile ukugcina ingqibelelo yengubo.
6. Ukuhlolwa kunye noLawulo loMgangatho
Okokugqibela, uhlolo olucokisekileyo kunye nolawulo lomgangatho kubalulekile ukuqinisekisa impumelelo yeeshushu-dip galvanizinginkqubo. Uhlolo lubandakanya uvavanyo olubonakalayo, imilinganiselo yobukhulu, kunye neemvavanyo zokubambelela. Imigangatho efana ne-ASTM A123/A123M ibonelela ngezikhokelo zokutyeba okwamkelekileyo kunye nomgangatho. Ukuthobela le migangatho kuqinisekisa ukuba iimveliso zegalvanized zihlangabezana nemilinganiselo yokusebenza efunekayo kwaye zibonelela ngokhuseleko oluhlala ixesha elide ekudlekeni.
Ukuqukumbela
I-Hot-dip galvanizing yindlela esebenzayo yokukhusela intsimbi kunye nentsimbi ekudlekeni, kodwa ifuna ingqalelo ecokisekileyo kwiinkcukacha kunye nokubambelela kwiimfuno ezithile. Ukusuka ekukhethweni kwemathiriyeli kunye nokulungiswa komphezulu ukuya ekubunjweni kwebhafu, ixesha lokuntywiliselwa, kunye nonyango lwasemva kokugalelwa, inyathelo ngalinye lidlala indima ebalulekileyo ekufezekiseni umgangatho ophezulu kunye nokuqina kweeyaleti zegalvanized. Ngokulandela ezi zenzo zilungileyo kunye nokugcina ulawulo oluluqilima lomgangatho, abavelisi banokuqinisekisa ukuba iimveliso zabo zegalvanized zinikezela ukusebenza kakuhle kunye nokuphila ixesha elide.
Ixesha lokuposa: Sep-18-2024