Ukuqonda ukuba njani Intsimbi yeGalvanized yenziwe ibalulekile kwiinjineli, amaqela okuthenga, kunye nabaphathi beprojekthi. Kuya kufuneka uvavanye ubomi bezinto eziphathekayo, imfezeko yesakhiwo, kunye nesakhono somthengisi ukwenza izigqibo ezinolwazi.
Ayizizo zonke iinkqubo zokugalela amanzi ezivelisa iziphumo ezifanayo. Indlela yokuvelisa ethile ichaza ubukhulu be-coating, ukwakheka, kunye nokusebenza kwexesha elide leprojekthi. Ukuxhomekeka kwinkqubo engafanelekanga kunokukhokelela ekudlekeni kwangaphambi kwexesha okanye ukusilela okuyintlekele kwesakhiwo.
Esi sikhokelo siqhekeza iinkqubo ezichanekileyo zeekhemikhali kunye nezoshishino emva kwegalvanizing. Senza imephu iindlela ezahlukeneyo zokuvelisa ngokuthe ngqo kwizicelo zabo ezilungileyo zemizi-mveliso. Uya kufumana kwakhona isakhelo esisekelwe kubungqina bokuvavanya ababoneleli bentsimbi. Ekupheleni kweli nqaku, uya kuyiqonda kakuhle indlela yokukhetha imathiriyeli efanelekileyo kwiprojekthi yakho elandelayo enkulu.
Izinto eziphambili zokuThatha
** Ukukhuselwa kweCathodic: ** I-Zinc isebenza njenge-anode yombingelelo (umgangatho oqhelekileyo we-electrode -980 mV vs. steel's -400 mV), ukukhusela isiseko sesinyithi nokuba i-coating ikhutshwe ngaphakathi kwe-radius ye-5mm.
**Inkqubo yokubekwa emgangathweni:** Inkqubo esemgangathweni yokudipha ifuna ulawulo olungqongqo lobushushu, ngokukodwa i-450°C (842°F) yebhafu ye-zinc etyhidiweyo.
**Ukuveliswa koMqulu:** Urhwebo **ikhoyili yentsimbi** kunye **neshiti lentsimbi** lixhomekeke kwiintambo eziqhubekayo zokugalela kusetyenziswa iindlela eziphambili ezifana nendlela yeSendzimir kunye neemela zomoya zolawulo olululo.
**INkcazelo yeSicelo:** Ukhetho kufuneka luhambelane nendlela (i-Hot-Dipped, Electro-galvanized, Galvanealed) nesiphumo (umz., ubuninzi bokunganyangeki komhlwa xa kuthelekiswa nokupeyinta).
**Iimida ezaziwayo:** Intsimbi efakwe igalvanized ifuna ugcino oluthile ukunqanda 'irusi emhlophe' kwaye ayifanelekanga kwindawo eneasidi ephezulu okanye ukudibana ngqo neentsimbi ezifanayo njengobhedu.
ISayensi ePhambili: Indlela iZinc ekhusela ngayo intsimbi
Ukuqonda ngokupheleleyo inkqubo yokuvelisa, kufuneka siqale siqonde iindlela zokukhusela ezidlalwayo. I-Zinc ayifaki nje isinyithi. Ibophelelana ngokwekhemikhali kwisiseko sesinyithi, ibonelela ngenkqubo yokhuselo yomaleko amabini.
Umqobo Wasemzimbeni
I-Zinc yenza umaleko we-metallurgical obopheleleke kakhulu phezu kwe-substrate. Eli khaka lomelele litywina ngokupheleleyo ukufuma, ioksijini, kunye nekloridi ezonakalisayo. Ngokungafaniyo nepeyinti eqhelekileyo, i-zinc alloy layers ikhula ngokwendalo ukusuka kwintsimbi ngokwayo. Olu nxibelelwano luqinileyo luthintela ukugqabhuka kunye nokugqabhuka. Uluhlu lwangaphandle luqukethe i-zinc ecocekileyo, ngelixa iileya zangaphakathi zenza i-complex, i-ultra-hard zinc-iron alloys. Ezi zingqimba zangaphakathi zihlala zixhathisa i-abrasion engcono kunesiseko sentsimbi.
Electrochemical Micro-Battery (I-Anode yomnikelo)
Ubuchule bokwenyani benkqubo ilele ekukhuselweni kwe-cathodic. I-Zinc inamandla kakhulu kwi-electronegative kunentsimbi. Kwinqanaba le-galvanic, i-zinc ithwala i-electrode esemgangathweni ye-980 mV, ngelixa isinyithi sihlala malunga ne-400 mV.
Ngenxa yokuba i-zinc isebenza ngakumbi, incama ngokuzithandela ii-electron zayo ukukhusela intsimbi engaphantsi. Ukuba umonakalo womatshini uveza isinyithi esingenanto, ibhetri ye-microscopic iyafomu. I-zinc ejikelezayo isebenza njenge-anode, kwaye intsimbi eveziweyo iba yi-cathode. I-zinc ngokukhethekileyo i-oxidize kwi-zinc carbonate. Le khompawundi isiphumo yenza iplagi ekhuselayo phezu komkrwelo. Kwizicelo ezisebenzayo, le ndlela yokubingelela ikhusela ngokusebenzayo intsimbi eveziweyo ukuya kuthi ga kwi-5mm ring.
Ubomi bezoQoqosho
Xa abavelisi beyisebenzisa ngokuchanekileyo, le ndlela yokukhusela kabini yandisa kakhulu ixesha elide lezinto. Iingubo ze-zinc ezikumgangatho ophezulu zivelisa ngokulula iminyaka engama-50 + yokuphila kwiindawo eziqhelekileyo zomoya. Oku kuqina okumangalisayo kuphelisa iindleko zokugcinwa kwesiqhelo. Abaphathi bamaziko akusekho mfuneko yokuba bacwangcise ukupeyinta indawo yesibini ebiza imali eninzi. Isixhobo sisebenza nje unyaka nonyaka.
INyathelo ezi-4 eziMgangatho zokuTshapha kweDiphu yeGalavanizing
Amaziko okuvelisa akumgangatho ophezulu alandela inkqubo engqongqo yokusebenza esemgangathweni (SOP). Le protocol engqongqo iqinisekisa ukuhlangana okugqibeleleyo kwe-metallurgical. Apha ngezantsi kulandelelwano oluqhelekileyo lwe-4 olusetyenziswa kulo lonke ishishini.
Inqanaba loku-1: Ukucocwa koMphezulu (Ukususa amafutha kunye nokuPickling)
Ukwaleka okungenasiphako kufuna umphezulu ongenasiphako. Izibonelelo ziqala ukuntywilisela isinyithi kwizisombululo ze-alkaline ezishushu. Oku kususa ubumdaka, ioyile, kunye nezingcolisi eziphilayo. Emva koko, bafaka izinto kwitanki yokuchola equlethe i-ambient-temperature hydrochloric acid (okanye i-asidi yesulfuric eshushu). Le bhafu eneasidi isusa isikali sokusila kunye neeoksidi zentsimbi.
Eyona ndlela yokuSebenza ngokuGqibeleleyo: Ukungoneli kokususwa kwegrisi kuhlala kungunobangela ophambili 'weendawo ezingenanto' ngexesha lohlolo lokugqibela.
Isigaba 2: Ukuguquguquka
Emva kokuhlanjululwa, isinyithi sihamba ngokuguquguqukayo. Abasebenzi bantywilisela iinxalenye kwisisombululo se-zinc ammonium chloride esishushu kwi-65-80°C. Umjikelo ususa naziphi na iioksidi zemicroscopic zokugqibela. Okubaluleke ngakumbi, iguqula ukunyanzeliswa komphezulu wesinyithi. Olu tshintsho lwekhemikhali luvumela i-zinc etyhidiweyo ukuba 'imanzise' ngokufanelekileyo intsimbi xa ingena.
Inqanaba lesi-3: IBhafu yokuGalela
Intsimbi ke ingena kwiketile engundoqo. Le bhafu iqulethe i-zinc etyhidiweyo egcinwe ngokuchanekileyo malunga ne-450 ° C (842 ° F). Ukuntywiliselwa okuqhelekileyo kuthatha imizuzu emi-4 ukuya kwemi-5, nangona iindawo ezinzima zesakhiwo zifuna ixesha elingakumbi. Ngethuba lesi siganeko se-thermal, i-iron isabela ngobundlobongela kunye ne-zinc etyhidiweyo. Le mpendulo yenza i-zinc-iron alloy layers ezidityanisiweyo.
Impazamo eqhelekileyo: Ukuhoxiswa kwentsimbi ngokukhawuleza kuthintela ukubunjwa kwe-alloy okwaneleyo, okukhokelela kwiingubo ezincinci, ezinqabileyo.
Inqanaba lesi-4: Emva koNyango kunye nokuCima
Emva kokurhoxiswa, indawo ipholisa ngokukhawuleza isinyithi. Ngokuqhelekileyo basebenzisa ukucinywa kwamanzi okanye ukupholisa umoya okulawulwayo. Ukupholisa ngokukhawuleza kumisa ukusabela kwesinyithi. Kwakhona kukhuthaza ukubunjwa kwepateni ye-crystalline surface. Ishishini libhekisa kule pateni ibonakalayo yahlukileyo njenge 'spangle.'
Ukwenziwa kweCoil yentsimbi eGalvanized and Sheet (Ukwenziwa ngokuQoqoyo)
Ngelixa i-batch galvanizing isebenza kakuhle kwimiqadi yolwakhiwo, ii-OEMs kunye nabenzi bemveliso bafuna imveliso ephezulu. Imigca yokuqhuba eqhubekayo iqhuba i-24/7 ukuvelisa izixa ezikhulu ze ikhoyili yentsimbi efakwe isinyithi . Le migca izenzekelayo isebenzisa i-metallurgy ephezulu ukuqinisekisa ukuhambelana okugqibeleleyo.
Indlela yeSendzimir (i-Oxidation-Nciphiso)
Imigca yanamhlanje eqhubekayo ihlala isebenzisa indlela yeSendzimir. Umcu wentsimbi ekrwada ukhulula ngokukhawuleza kwaye utyhutyhe kwiziko lokutshisa eliqhubekayo ukufikelela kumaqondo obushushu ukuya kuma 980°C.
Ngelixa lohambo olushushu, abaqhubi bafaka i-oxidize ngabom umcu. Emva koko bayayinciphisa ngokukhawuleza bayibuyisele kwintsimbi ecocekileyo ngaphakathi kwi-atmosfera yokunciphisa elawulwayo. Oku kusetwa ngokutsha kweekhemikhali kutshisa zonke ii-oyile eziqengqelekayo kunye nentsalela yekhabhoni. Iqinisekisa ukunamathela kwe-zinc engenasiphako okwesibini umcu wokuziphosa kwimbiza ye-zinc etyhidiweyo.
Ulawulo lokutyeba kokutyabeka
Ukuchaneka kuchaza ukuveliswa okuqhubekayo. Njenge Ishiti lensimbi eliphekiweyo liphuma kwimbiza ye-zinc ngokuthe nkqo, lidlula phakathi kwezixhobo ezichanekileyo.
Indlela Yemela Yomoya: Imilomo elungelelanisiweyo ngokuchanekileyo ihlala iimilimitha kude nentsimbi ebalekayo. Bavuthela umoya oxinaniswe kakhulu okanye umphunga oshushu kakhulu ngqo kumcu. Le blade ingabonakaliyo yosula ngokwasemzimbeni i-zinc enyibilikisiweyo engaphezulu, iyityhale ibuyele embizeni.
Inqaku lokuthenga: Ukuchaneka kweemela zomoya kuyalela yonke into. Imela yomoya engalinganiyo yenza iingubo ezingalinganiyo. Oku kuchaphazela ngqo ukusebenza kakuhle kweendleko kunye nokusebenza kwee-odolo ezinkulu zekhoyili. Xa uvavanya ababoneleli, kufuneka ubuze ngokucacileyo malunga neenkqubo zabo zokulawula iimela zomoya.
Iindlela ezizezinye zokuVelisa vs. Hot-Dip
I-Hot-dip ihlala ingumgangatho woshishino wokuqina okuphezulu. Nangona kunjalo, iinjineli zisebenzisa ezinye iindlela zokuvelisa kwiimeko ezithile zokusetyenziswa. Kuya kufuneka ufanise indlela ngokuthe ngqo neemfuno zeprojekthi yakho.
Indlela Yokuvelisa |
Ingaba isebenza kanjani |
Ityala lokuSebenzisa eliPhambili |
Uncedo olungundoqo |
Electro-galvanizing |
Ngoku ngokuthe ngqo ukudluliselwa kwe-zinc ion ngesisombululo se-electrolyte (Inkqubo ebandayo). |
Iiphaneli zangaphandle ze-Automotive body-in-white (BIW). |
Ichaneke kakhulu, ibhityile ilungele umzobo onzulu kunye nokupeyinta iimoto. |
Galvanealing |
Inkqubo ye-Hot-dip ilandelwa ngoko nangoko ngumgca we-thermal annealing. |
Iiphaneli zeHVAC, iifacade zezakhiwo ezibonakalayo ezibonakalayo. |
Yenza i-matte-grey alloy yamkeleke kakhulu ukupeyinta ngaphandle kweprimer. |
Ukugalela ngaphambili |
Insimbi eqengqelekayo ifumana i-zinc coating eqhubekayo ngaphambi kokusikwa kokugqibela. |
Imijelo ye-Unistrut, iitreyi zentambo, iipayipi ze-conduit. |
Ifana kakhulu kwaye inexabiso elisebenzayo kwiibhetshi ezinkulu. |
I-Hot-Dip Batch |
Intsimbi eyenziweyo ifakwe ngokupheleleyo kwi-zinc etyhidiweyo. |
Iziseko ezingundoqo ezinzima, iibhulorho, ulwakhiwo lwangaphandle lwesakhelo. |
Ubuninzi bokugquma kunye nokugubungela ngokupheleleyo imiphetho / i-welds. |
Electro-galvanizing (Inkqubo ebandayo)
Le ndlela idlula ubushushu ngokupheleleyo. I-Zinc ions idlulisela kwintsimbi ngesisombululo sekhemikhali ye-electrolyte usebenzisa i-current ngqo. Inika umtya othe ngqo, obhityileyo. Abenzi be-Automakers bathembele kakhulu kule ndlela yeepaneli zomzimba. Umaleko omncinci uphatha isitampu esinzulu ngokugqibeleleyo. Ngelixa izingca ngokuxhathisa ukuthotywa okuphantsi xa kuthelekiswa nediphu eshushu, ibonelela ngeseyile engenasiphako kwiinkqubo zepeyinti yemoto.
IGalvanealing (i-Thermal Alloying)
I-Galvanealing yazisa inyathelo elongezelelweyo kumgca oqhubekayo. Ngokukhawuleza emva kokuba intsimbi iphume kwibhafu ye-zinc kwaye idlulise iimela zomoya, ingena kwisithando somlilo. Ubushushu bunyanzelisa intsimbi ukusuka kwisiseko sentsimbi ukuba isasazeke ngaphandle kwi-zinc coating. Oku kudala i-alloy ye-iron ebuthuntu, matte-grey. Iyakwazi ukumelana nokukrweleka. Abachwethezi bayayikhetha kuba ivelisa i-spatter encinci, kwaye abapeyinti bayayithanda kuba iphelisa imfuno yokufaka iiprimers.
Ukugalela ngaphambili (Ukugalela iMill)
Ii-Mill zihlala zikhupha amashiti entsimbi aqengqelekayo phambi kokuba abaqulunqi bawasike ngokwesayizi ethile. Iqinisekisa ukufana okugqwesileyo kuwo wonke umphezulu. Nangona kunjalo, inomda owaziwayo. Imiphetho esikiweyo ihlala ingagqunywanga ngokupheleleyo. Le miphetho engenanto ixhomekeke ngokupheleleyo kwimpembelelo ye-anode ye-zinc ejikelezileyo yokhuseleko. Isebenza kakuhle ngaphakathi endlwini kodwa iyasokola kwindawo eyingozi kakhulu yaselwandle.
Unyino lobuNjineli kunye nokuNcitshiswa koMngcipheko
Yonke imathiriyeli yoshishino inezithintelo. Uvavanyo oluselubala lobu buthathaka luthintela ukusilela kweprojekthi okuyintlekele. Kuya kufuneka wenze injineli ngenkuthalo malunga nale mingcipheko ithile.
Ukuba semngciphekweni kokusiNgqongileyo: IZinc ithotywa ngokukhawuleza kwiindawo ezineasidi kakhulu okanye ezinealkaline kakhulu. Ngalo lonke ixesha gcina i-pH yokubonisa ngokungqongqo phakathi koluhlu lwe-6-12. Izityalo zekhemikhali ezibuhlungu zihlala zifuna iingubo zokukhusela ezongezelelweyo phezu kwe-zinc.
Imingcipheko yokuGcina (iRust emhlophe): Oku kuhlala kuyingxaki enkulu kushishino. Ukubonakaliswa kukufuma okumileyo ngaphandle kokuhamba komoya okufanelekileyo ngexesha lokugcinwa kubangela i-oxidation ngokukhawuleza. I-zinc ijika ibe yizinc hydroxide, into emhlophe engumgubo. Oku kuthoba isidanga phambi kokuba ufakelo luqale. Ngalo lonke ixesha gcina iinyanda ngaphakathi endlwini, ziphakanyisiwe, kwaye zineengile zokuhambisa amanzi.
Ukungaphumeleli kobushushu obuphezulu: Ziphephe izicelo zobushushu obugqithisileyo. Utyhileko oluqhubekayo ngaphezu kwe-200 ° C (392 ° F) yonakalisa izinto eziphathekayo. I-intermetallic alloy layers ekugqibeleni iya kuhlambulula kwaye ihluke kwi-substrate yensimbi.
I-Galvanic Corrosion: Ukuqhagamshelana ngokuthe ngqo ngokomzimba kunye nobhedu kukhawuleza ukubola kwe-electrochemical. Ukuhamba kwamanzi ukusuka kuphahla lobhedu ukuya kwiipaneli ze-zinc kuya kuhluba i-coating ngokukhawuleza. Ngokufanayo, iinkuni ezithile eziphathwayo ziqulethe izilondolozo ezinoburharha ezisekelwe kubhedu. Ngalo lonke ixesha sebenzisa iinwebu zomqobo phakathi kwezi zinto zingahambelaniyo.
Iingozi ze-Welding: Ubushushu obuphezulu be-welding bunyusa i-coating yokukhusela. Le nkqubo ikhupha umsi onetyhefu yezinc oxide. Amaziko kufuneka agunyazise iiprothokholi ezikhethekileyo zokungenisa umoya kunye nezixhobo ezifanelekileyo zokuphefumla kubo bonke abaqhubi.
Uluhlu lokuThengwa kweeMpahla: Ukuvavanya uMgangatho kunye neZakhono zababoneleli
Ukukhetha umenzi kufuna inkuthalo efanelekileyo emazantsi efuneli. Awunakuvavanya umboneleli ngexabiso letoni nganye yedwa. Sebenzisa olu luhlu lokutshekisha ukuphicotha izibonelelo zababoneleli kunye nokuqinisekisa umgangatho wezinto eziphathekayo.
Ukuthotyelwa okusemgangathweni
Ungaze wamkele intsimbi engabhalwanga. Kufuneka uqinisekise ukubambelela ngokungqongqo kwimigangatho yamazwe ngamazwe. Cela izatifikethi zovavanyo oluhlaziyiweyo. Khangela i-ASTM A123 yeeprofayili ezenziweyo zolwakhiwo. Kwiimveliso zeshiti eziqhubekayo, funa ukuthotyelwa kwe-ASTM A653. Iimarike zaseYurophu zihlala zifuna imigangatho elinganayo ye-EN, ngelixa iimarike zaseAsia zisebenzisa iinkcukacha zeJIS.
Coating Ubunzima vs. Ukutyeba
Qinisekisa ukuba umboneleli wakho ubonelela ngemephu yedatha engafihliyo kumanqaku athile e-G. ENyakatho Melika, ukulinganisa kwe-G90 kuthetha ukuba isinyithi sithwala i-0.90 ounces ye-zinc ngonyawo lwesikwere (iphelele kumacala omabini). I-G60 ithwala ngaphantsi. Tshatisa ubunzima bokugquma ngokuthe ngqo kwi-exposure yakho efunekayo yokusingqongileyo. Iimeko ezingqongileyo eziselunxwemeni zifuna iingubo ezinzima, ngelixa ukutsalwa kwe-HVAC yangaphakathi kusinda ngokulula kwiigeyiji ezikhaphukhaphu.
Iikhrayitheriya zokuHlola okuBonekayo
Imveliso ekumgangatho ophezulu ibonakala icocekile. Kuya kufuneka ukwale ukuthunyelwa kwezinto ezibonisa iziphene ezinzima. Zihlole ngononophelo iimpahla ezihanjiswayo. Lumkela ukufakwa kwenkunkuma, okuvakala ngathi ngamaqhakuva abukhali, anesanti kumphezulu. Khangela iindawo ezingenanto apho i-zinc ihlulekile ukudibanisa. Ukwala izinto ezinobunzima obuguquguqukayo, njengoko oku kubonisa iiprothokholi ezingalunganga zokucoca kumzi-mveliso.
Ukuphonononga ixabiso leXesha Elide
Shisa ugxininiso lwakho lokuthenga kude kwiindleko zokufumana okokuqala. Bala izibonelelo zemali zexesha elide. Umba wokupheliswa ngokupheleleyo kolondolozo lwesiqhelo lwesakhiwo. Qwalasela ulondolozo lwemali olukhulu ekuthinteleni ixesha lokungasebenzi kwezixhobo. Oku kubonakala kubaluleke kakhulu kumoya okude, isola, kunye ne-telecom asethi. Okokugqibela, phendula ngokunqongophala kweemfuno zecandelo lesibini lokupeyinta ekufakeni.
Ukuqukumbela
Inkqubo yokuvelisa imisela ezona mpawu zibalulekileyo zetsimbi yezinto zakho. Umgca wokudipha oqhubekayo ovelisa iikhoyili ezinkulu unceda iimfuno zobunjineli ezahlukeneyo ngokupheleleyo kunelayini ye-electroplating eyila iiphaneli zeemoto. Iimpawu ezikhethekileyo ze-anode zedini zeZinc zibonelela ngokhuseleko olungenakuthelekiswa nanto kwizinto ezinzima.
Iqela lakho lobunjineli kunye nelokuthenga kufuneka lihlale liphicotha izakhono zoncedo lwababoneleli. Jonga itekhnoloji yabo yesithando somlilo kwaye uqinisekise ukuchaneka kweemela zabo zomoya. Soloko utshatisa indlela ethile yokugalela ngokuthe ngqo kwiimfuno zokusingqongileyo kunye nolwakhiwo lwesiza sakho.
Musa ukushiya umsebenzi wezinto eziphathekayo uzenzekela. Cela isampulu yezinto eziphathekayo, cela ikhowuti eneenkcukacha, okanye ucwangcise ukubonisana nobugcisa kunye nomthengisi wakho namhlanje ukuze uqinisekise ukuba iprojekthi yakho elandelayo imela ixesha.
FAQ
Umbuzo: Ithatha ixesha elingakanani inkqubo yokugalela idiphu eshushu?
A: Ngelixa untywiliselo lwezinki olunyibilikisiweyo luthatha imizuzu emi-4–5 kuphela, umjikelo opheleleyo uthatha ixesha elide kakhulu. Ukucoca umphezulu ngokufanelekileyo, ukulungiswa kweasidi, ukuguquguquka, ukugquma, kunye nokupholisa kufuna ixesha. Iigalvanizers zorhwebo zifuna inguqu eqhelekileyo yeentsuku ezi-3 ukugqiba yonke inkqubo ngokufanelekileyo.
Q: Uthini umahluko phakathi kwekhoyili yentsimbi kunye neshiti?
A: Iikhoyili zikhulu, ziqengqeleka eziqhubekayo zentsimbi ephathwayo. Abavelisi bazithumela kubavelisi abalungele ukwenziwa komqulu ophezulu wevolumu eqhubekayo okanye isitampu esinzulu. Amashiti ziikhoyili ezithe zatyhilwa, zacandwa kusetyenziswa izileveli, kwaye zisikwe kubude obuthile bokwenziwa kwangoku, kwasekhaya.
UMBUZO: Kutheni intsimbi ekhangayo ngamanye amaxesha ibonakala imenyezela kwaye ngamanye amaxesha ibuthuntu?
A: Imbonakalo ebonakalayo, eyaziwa ngokuba yi-spangle, ixhomekeke ngokupheleleyo kwizinga lokupholisa kunye nekhemistry ethile yokuhlamba i-zinc. Abavelisi ngabom benza iingubo ezimnyama, ezingwevu ngenkqubo yegalvanealing. Olu kugqiba lubuthuntu lubonelela ngokuncamathela okungcono kwizicelo zepeyinti yesibini.
Umbuzo: Ngaba unako ukuwelda intsimbi?
IMPENDULO: Ewe, kodwa ifuna ukulungiswa ngocoselelo. Kuya kufuneka ucole ngoomatshini i-zinc yokwambathisa kwindawo ekudityaniswa kuyo ngokuthe ngqo ukuze uqinisekise ingqibelelo ye-weld ngokupheleleyo. Ukongeza, i-welding yenza i-zinc ibe ngumphunga, ikhuphe imisi enetyhefu. Iivenkile kufuneka zisebenzise iindlela zokukhupha umsi onzima ukukhusela abaqhubi.
