Iikhoyili zentsimbi ezenziwe ngegalvanized zisetyenziswa kakhulu kulwakhiwo, kwiimoto, nakwimveliso yezixhobo zombane ngenxa yamandla azo kunye nokufikeleleka kwazo.
Iimveliso zethu zibonakalisa i-zinc coating efakwe kwi-hot-dip galvanizing, esebenza njengekhaka elikhuselayo kumswakama kunye nezinye izinto ezidliwayo. Nokuba isigqubuthelo sentsimbi sikrweleka, i-zinc iqala idle nomhlwa, ikhusela intsimbi engaphantsi kwayo. Usenokuzibuza, ngaba intsimbi ekhandisiweyo iyarusa? Impendulo nguewe, kodwa kwenzeka ngokuthe ngcembe. Ubomi bemibhinqo yentsimbi buxhomekeke kwizinto ezifana nokusingqongileyo, ubukhulu bokugquma, kunye nokugcinwa kwazo.
Ingcebiso: Soloko uhlola iikhoyili ezintsha zentsimbi ukuze ubone nawuphi na umonakalo. Ukhathalelo olufanelekileyo lwekhoyili yakho yentsimbi ayigcini nje ngokuyigcina ikhangeleka intle kodwa ikwandisa ukuqina kweeprojekthi zakho inkampani yethu.
Izinto eziphambili zokuThatha
Iicoyile zentsimbi azivuthi lula. Oku kungenxa yokuba bane-zinc coating. I-zinc isebenza njengekhaka kwaye igcina intsimbi ikhuselekile. I-zinc layer inqanda amanzi ukuba angachukumisi
intsimbi. Ukuba i-coating iyakrweleka, i-zinc isanceda ukunqanda umhlwa. Oku kwenza ikhoyili ihlale ixesha elide. Izinto ezifana nomoya onetyuwa, ungcoliseko, kunye nemozulu emanzi zenza umhlwa wenzeke ngokukhawuleza. Ke, apho usebenzisa izinto zetsimbi ukuba zihlala ixesha elingakanani. Ukucoca iikhoyili kudla ngokubanceda bahlale bebahle. Ukujonga umonakalo kunye nokuwulungisa ngokukhawuleza nako kuyanceda. Ukukhetha ubungakanani obufanelekileyo bokugquma kwe-zinc kubalulekile. Ukugcina iikhoyili ngendlela eyiyo kuzigcina zikhuselekile. Oku kubanceda bahlale ixesha elide.
Ngaba iRust yentsimbi eyiGalvanized Steel?
Ukuba ubuza ukuba intsimbi yentsimbi iyarusa, ufuna impendulo elula. Ikhoyili yentsimbi ekhandisiweyo ixhathisa umhlwa kakuhle, kodwa isenako ukurusa. I-zinc coating isebenza njengekhaka kwaye inciphisa umhlwa. Ngokuhamba kwexesha, izinto ezifana nemozulu kunye nomonakalo zinokusigqiba eli khaka. Kubalulekile ukwazi ukuba i-galvanizing iyeka njani umhlwa kunye nokuba ulindele ntoni kwikhoyili elungileyo yegalvanized kwiindawo ezahlukeneyo.
UKhuseleko lwe-Zinc Coating
Ukufakwa kwe-zinc kwi-coil eyenziwe nge-galvanized kwenza umqobo phakathi kwentsimbi kunye nomoya. Lo mqobo ugcina amanzi neoksijini engenamanzi, nto leyo ebangela umhlwa. Ukuba ukhetha intsimbi ene-zinc, iyama kwimvula, ukufuma kunye nongcoliseko. Iibhondi ezishushu ze-galvanizing zinc ukuya kwintsimbi, ngoko ke ukugquma kuhlala iminyaka emininzi.
Izifundo zibonisa ukuba iingubo ze-zinc ziba ngcono kunye nezongezo ezikhethekileyo. Ezi zongezo zenza i-coating yomelele kwaye ibe ngcono ekumiseni umhlwa. Ngokomzekelo, ukongeza i-ceria nanoparticles kunye ne-polyaniline inceda i-zinc ukukhusela insimbi kwi-corrosion. Olunye uphononongo lwavavanya ikhoyili yentsimbi efakwe amazingi ngaselwandle iminyaka emihlanu. Izinki ezityebileyo zalehlisa umngcipheko womhlwa obomvu kunye nokuxobuka kwepeyinti, ngakumbi emaphethelweni. I-zinc layer yenza iifilimu kwaye inqande ioksijini ekufikeleleni kwintsimbi.
Uyakwazi ukubona ukuba imo engqongileyo itshintsha njani ixesha elide lekhoyili yegalvanized kwitheyibhile engezantsi:
Okusingqongileyo |
Ixesha eliqhelekileyo lokuvela komhlwa |
Imiba engundoqo yokusiNgqongileyo |
Iingcebiso zoLondolozo |
Oqhelekileyo Ngaphandle |
Iminyaka engama-20 ukuya kwengama-50 |
Umoya omtsha, ungcoliseko oluphantsi |
Jonga ubukhulu bengubo rhoqo emva kweminyaka emi-5; i-lacquer ecacileyo yokuzikhethela |
Ummandla woNxweme |
5 ukuya kwi-15 iminyaka |
Isiqulatho setyuwa ephezulu emoyeni (isitshizi setyuwa) |
Hlola kabini ngonyaka (gqalisela kwii-welds/edges); coca ngekota |
Ungcoliseko lwemizi-mveliso |
Iminyaka eyi-10 okanye ngaphantsi |
Izinto ezingcolisayo zikhawulezisa ukunxiba kwe-zinc |
Ukuhlolwa rhoqo kunye nokucoca okucetyiswayo |
Qaphela: Ukucoca kunye nokujonga ikhoyili yakho enegalvanized kungayenza ihlale ixesha elide. Ukuba awuyikhathaleli, umhlwa uya kwenzeka ngokukhawuleza, ngakumbi kwiindawo ezinzima.
Ikhoyili yentsimbi enobumba inokuhlala iminyaka engama-20 ukuya kwengama-50 okanye ngaphezulu ngaphandle kweemeko eziqhelekileyo. Kwiindawo eziselunxwemeni okanye kwimizi-mveliso, ayihlali ixesha elide ngenxa yetyuwa nemichiza. Umgangatho kunye nobunzima bokugquma kubalulekile. Iingubo ze-zinc ezityebileyo zikhusela ngcono kwaye zihlala ixesha elide.
Kwiindawo ezipholileyo zangaphandle, intsimbi efakwe igalvanized ingahlala ngaphezulu kweminyaka engama-50 ngaphambi kokurusa.
Kwiindawo ezinzima ezifana nonxweme okanye iindawo zemizi-mveliso, inokuhlala iminyaka engama-20 okanye ngaphantsi.
Insimbi ene-galvanized ingahlala iminyaka engama-50-100 kwiindawo eziqhelekileyo.
Kwiindawo zaselwandle okanye zoshishino, zihlala iminyaka eyi-20-50 ngokunyamekela.
I-Zinc yokugqoka inika zombini umqobo kunye nokukhuselwa kwedini kwi-rust.
Iikhemikhali, amanzi, umonakalo, kunye nokufuma okuphezulu kwenza ukuba iguge ngokukhawuleza.
Intsimbi ekhuniweyo idla ngokuhlala iminyaka engama-25 ukuya kwengama-50.
Kwiindawo ezingenzima kangako, inokuhlala ukuya kutsho kwiminyaka engama-75.
Iingubo ezityebileyo ze-zinc zikhusela ixesha elide.
Ukugcinwa kunye neengubo ezongezelelweyo zinceda ukuhlala ixesha elide.
Iikhoyili ze-GI zinokuhlala iminyaka engama-20 ukuya kwengama-50 okanye ngaphezulu kwiindawo eziqhelekileyo, ezingenakonakala.
Ukunyamekela rhoqo kunye neengubo zenza ukuba zihlale ixesha elide.
Inkqubo yoKhuselo lwedini
Unokuzibuza ukuba kutheni ikhoyili enezinki ikhusela intsimbi kakuhle. Isizathu yindlela yokukhusela idini. I-Zinc ayinabunewunewu kunentsimbi, ngoko iyarusa kuqala. Ukuba i-zinc coating ikrweleka, amasuntswana e-zinc asebenza njenge-anodes yombingelelo. Banika ii-electron kwintsimbi kwaye banqande intsimbi ekuruseni. Oku kubizwa ngokuba lukhuselo lwe-cathodic.
Xa i-zinc irusi, yenza i-zinc oxide kunye neetyuwa ze-hydroxycarbonate. Ezi zenza ifilimu engqingqwa, yokuziphilisa phezu kwentsimbi. Le filimu ivimba amanzi kunye neoksijini, inika ukhuseleko ngakumbi. Ingubo ye-zinc ayikho nje umqobo. Kwakhona yenza ikhaka lemichiza elibamba izinto ezibangela umhlwa lize lithobe umhlwa.
Kwinqanaba elincinci, i-zinc oxide inceda ukuhambisa ii-electron kwi-zinc kunye nentsimbi. Oku kunceda iimpendulo ezigcina intsimbi ikhuselekile. Njengoko i-zinc layer iguga, ukhuseleko lutshintsha ukusuka kwi-cathodic ukuya kumqobo. Lo mxube wesenzo sedini kunye neziphumo zomqobo unika ikhoyili enezinki ukuxhathisa umhlwa kunye nobomi obude.
Icebiso: Khetha ikhoyili enezinki engqindilili, elinganayo neyinki ukuze uyikhusele. Jonga i-coil yakho rhoqo ukuze ubone imikrwelo okanye umonakalo ukuze ugcine ukhuseleko lwedini lusebenza.
Izinto ezibangela umhlwa kwiKhoyili yentsimbi
Imiba yokusingqongileyo
Xa usebenzisa ikhoyili yegalvanized ngaphandle, imozulu ibaluleke kakhulu. Ukuba umoya ufume kakhulu, amanzi anokuhlala kwikhoyili. La manzi anceda ukumila komhlwa ngokukhawuleza. Ityuwa elwandle okanye emanzini anetyuwa inokulimaza i-zinc layer. Oku kwenza ukuba umhlwa ubonakale ngokukhawuleza. Ungcoliseko olusemoyeni, olufana ne<em>sulphur dioxide nee<em>nitrogen oxides, luxutywa namanzi. Ezi zixube ukwenza iiasidi eziqhekeza i-zinc. Imvula eneasidi ezixekweni nayo iwonakalisa umaleko okhuselayo. I-Moss kunye ne-lichen inokukhula kwikhoyili. Zibamba amanzi kufutshane nentsimbi kwaye zenze iindawo ezincinci ezimanzi. La mabala anceda ukuqala komhlwa.
Nazi ezona zizathu zixhaphakileyo zomhlwa kwikhoyili enegalvanized:
Ukufuma okuphezulu (ngaphezulu kwe-60%)
Ityuwa emoyeni okanye emanzini (iindawo eziselunxwemeni)
Ukumanzisa rhoqo okanye ukumanzisa
Ungcoliseko lwesulphur dioxide
Ukubonakaliswa kwe-Hydrogen sulfide
Ukuqhagamshelana nealkalis eyomeleleyo (isamente, udaka)
Ukubaleka kwemvula eneasidi
Ukukhula kwe-moss kunye ne-lichen
Unobangela/Imeko |
Ingcaciso |
Iindawo ezifumileyo nezithintelweyo |
I-electrochemical corrosion, umhlwa omhlophe ngenxa yokufuma kunye nokungahambi kakuhle komoya |
Ukuchithwa kwe-zinc carbonate |
Ukufuma ixesha elide kuvumela izisombululo ezonakalisayo ukuba zenzekile |
Iindawo zomhlwa ezimhlophe |
I-Zinc layer idliwe, intsimbi ibonakaliswe |
Ukusabela kweekhemikhali |
Ukufuma, ioksijini, i-CO2, kunye nee-oksidi zenza izisombululo ezonakalisayo ze-electrolytic |
Icebiso: Ukuba uhlala kufuphi nolwandle okanye esixekweni, jonga ikhoyili yakho eyenziwe ngamalenki rhoqo. Ezi ndawo zenza ukuba umhlwa wenzeke ngokukhawuleza kwaye unciphise ubomi bekhoyili yakho.
Ukwenzakala Emzimbeni
Umonakalo obonakalayo sesinye isizathu esikhulu sokugqwala kwikhoyili enezinki. Imikrwelo, amanqaku, okanye ukuhamba rhabaxa kunokwaphula i-zinc coating. Ukuba ubona umkrwelo, intsimbi engaphantsi kwayo ivuleleke emoyeni nasemanzini. I-Zinc inokukhusela imikrwelo emincinci, kodwa hayi emikhulu. Ukuba kukho umkrwelo omkhulu okanye umonakalo kwindawo enzima, kufuneka uyilungise. Oku kugcina ikhoyili ingavuthwa ngokukhawuleza. Kufuneka ujonge umonakalo emva kokufaka ikhoyili kunye nangexesha lokutshekisha. Nokuba iitshiphusi ezincinci zinokuvumela amanzi ukuba angene kwaye aqale umhlwa.
Qaphela: Yiba mnene kwikhoyili yentsimbi xa uyihambisa okanye uyifake. Sebenzisa imitya ethambileyo kwaye musa ukurhuqa ikhoyili ukumisa imikrwelo.
Ukutyeba kokutyabeka
Ubukhulu bengubo ye-zinc bubaluleke kakhulu ekumiseni umhlwa. Iingubo ezityebileyo zenza ikhaka elinamandla kwaye lihlala ixesha elide kwiindawo eziqinileyo. Uphononongo lubonisa ukuba i-zinc layers inika i-zinc ion ezininzi. Ezi ion zinceda ukukhusela imiphetho eqingqiweyo kunye namabala abuthathaka. I-zinc isebenza njengekhaka kwaye inciphisa umhlwa kwintsimbi.
IBanga |
Kuthelekelelwa ukutyeba kweZinc zoKwaleka (μm) |
iNqanaba lokuchasa iCorrosion |
Imekobume yeSicelo esiSiseko |
G60 |
11.6 |
Phakathi |
Imekobume ezonakalise kancinci |
G90 |
16.8 |
Kulungile |
Uninzi lwesakhiwo kunye nophahla |
G180 |
60 |
Phezulu kakhulu |
Iimeko-bume ezonakalisa ngokugqithisileyo |
G275 |
35.6 |
Phezulu |
Iimeko ezingqongileyo ezirhabaxa |
Khetha ubukhulu be-zinc obuhambelana neprojekthi yakho kunye nalapho uyisebenzisa khona. Iingubo ezityebileyo zibiza ngaphezulu, kodwa zikhusela ngcono kwaye zihlala ixesha elide.
ULondolozo lweKhoyile eGalvanized
Ukukhathalela ikhoyili yakho yegalvanized yeyona ndlela ilungileyo yokuthintela intsimbi engathi ingavuthwa kwaye ugcine umgangatho wayo uphezulu. Amanyathelo alula afana nokucoca, ukuhlola, kunye nokulungisa anokukunceda ukuba ufumane okuninzi kutyalo-mali lwakho. Ulondolozo lwarhoqo lukwakongela imali ngokuphepha ukutshintshwa kwezinto ezinexabiso eliphezulu.
Ukucoca rhoqo
Kufuneka ucoce ikhoyili yakho yegalvanized kanye ngonyaka. Kwiindawo eziselunxwemeni okanye kwimizi-mveliso, coca rhoqo emva kweenyanga ezintathu. Ukucoca kususa ityuwa, uthuli, kunye nentsalela yemvula eneasidi enokuthi igubungele i-zinc coating. Qala ngeendlela ezithambileyo kwaye usebenzise kuphela izicoci ezinamandla ukuba ziyafuneka.
Sebenzisa ibrashi ethambileyo yeplastiki yokukhuhla. Gwema iibrashi zentsimbi, ezinokukrwela kwaye zikhuphe umbala we-zinc.
Hlamba ngesepha epholileyo okanye iimveliso zokuhlamba imoto kunye namanzi anoxinzelelo oluphantsi.
Ukufumana amabala athambileyo, sebenzisa izicoci ze-ammonia zasekhaya. Ukufumana i-rust stains okanye i-cement deposits, sebenzisa i-oxalic acid, uze uhlambulule kakuhle.
Susa ipeyinti ene-thinner kunye neplastiki okanye i-scraper yeplanga. Sebenzisa ii-strippers ezingeyo-alkaline kwipeyinti eqinile.
Njalo uhlambulule ikhoyili emva kokucoca ukususa nayiphi na intsalela yokucoca.
Ingcebiso: Vavanya nayiphi na indlela entsha yokucoca kwindawo encinci, efihliweyo kuqala. Oku kukunceda ukuba ugweme ukonakalisa i-zinc coating.
Ukucoca ikhoyili yakho yegalvanized rhoqo kunceda ukunqanda intsimbi yegalvanized ekurusini kwaye igcina umphezulu ukhangeleka uqaqambile. Ikwakhusela i-zinc layer, eyona nto iphambili kumgangatho wexesha elide.
Ukuhlolwa nokulungiswa
Kufuneka uhlole ikhoyili yakho yegalvanized kanye ngonyaka ubuncinane. Kwiindawo ezinzima, jonga rhoqo emva kweenyanga ezintandathu. Khangela iimpawu zokuqala zomhlwa okanye ukonakala kwengubo. Gxininisa kwezi ngongoma ziphambili:
Iindawo ezithe tyaba apho amanzi anokuqokelela khona.
Imiphetho kunye neewelds, ezinokuthi zigqwese.
Amabala aye achukunyiswa ngaphambili.
Iindawo ezinamabala amdaka okanye irusi emhlophe.
Iindawo ezingenanto apho i-zinc coating ilahlekile.
Imingxuma kunye neekona apho amanzi kunye nokungcola kunokwakhelana khona.
Iindawo apho ikhoyili ichukumisa ezinye iintsimbi.
Sebenzisa igeyiji yobukhulu bemagnethi ukujonga i-zinc coating. Ukuba ufumana imikrwelo okanye amabala amancinane omhlwa, zilungise ngoko nangoko:
Coca indawo ngesepha ephakathi kunye namanzi.
Susa umhlwa ngebrashi yocingo okanye i-sandpaper entle.
Faka ipeyinti etyebileyo nge-zinc okanye i-zinc-spray ebandayo ukubuyisela ukhuseleko.
Ukulungiswa okukhulu, sebenzisa i-urethane enomswakama okanye i-vinyl-based based paint.
Qaphela: Ukulungisa okukhawulezileyo kunqanda umhlwa ukuba usasazeke kwaye kukunceda ugcine umgangatho wekhoyili yakho yegalvanized.
Ukuphepha Imichiza Engqwabalala
Iikhemikhali ezithile zingonakalisa i-zinc yokugquma kwaye ikhawulezise umhlwa. Kufuneka uphephe:
Izichumisi kunye neekhemikhali zegadi, ezinokunciphisa ukukhuselwa kwe-zinc ukuya kuma-40%.
I-acids ezinamandla kunye nezicoci ze-alkaline, eziqhekeza i-zinc layer.
Amanzi anetyuwa kunye nokufuma okuphezulu, okwandisa izinga lokubola.
Imvula ene-asidi kunye nezingcolisi zemizi-mveliso, eziguga i-coating ngokukhawuleza.
Ukuqhagamshelana nobhedu okanye ezinye izinyithi, ezinokubangela ukubola kwegalvanic.
Gcina ikhoyili yakho enezinki kwindawo eyomileyo nengena umoya. Yigcine kude neekhemikhali kunye nezinye iintsimbi. Ukuba kufuneka usebenzise isicoci, khetha enye ekhuselekileyo yokwaleka kwe-zinc, njenge-acetone okanye iimveliso zorhwebo ezivavanyelwe intsimbi.
Icebiso: Ugcino olululo kunye nokucoca ngononophelo ziindlela ezilula zokukhusela ikhoyili yakho yegalvanized kunye nokwandisa ubomi bayo.
Iindleko-uFaneko lwesondlo
Ukugcinwa rhoqo kubiza ngaphantsi kakhulu kunokutshintsha ikhoyili erulileyo. Ukucoca kunye nokulungiswa okuncinci kugcina i-zinc coating yomelele kwaye ithintele iingxaki ezinkulu. Ukuba utsiba ulungiso, umhlwa ungonakalisa ikhoyili kwaye ikunyanzele ukuba uthenge entsha. Ukutyala imali encinci kunye nemali ekuyigcineni ikunceda ukuba uphephe ukutshintshwa kwezinto ezibiza imali eninzi kwaye ugcine ikhoyili yakho yentsimbi ikwimeko ephezulu iminyaka.
Impembelelo yokusiNgqongileyo kwiKhoyili yeNsimbi eGalvanized
Ngaphandle vs. Imimandla yoNxweme
Indawo osebenzisa kuyo ikhoyili enesitayile ibaluleke kakhulu. Kwimimandla yasemaphandleni okanye yeedolophu, i-galvanized coil ihlala iminyaka emininzi. Usenokungaboni umhlwa ngaphezu kweminyaka engama-70 kwezi ndawo. Oku kwenzeka ngenxa yokuba umoya ucocekile kwaye kukho amanzi amancinci emoyeni.
Kodwa kufutshane nolwandle, izinto zahlukile. Ityuwa esemoyeni yenza ukuba umhlwa wenzeke ngokukhawuleza. Ukuba ikhoyili ijongene nomoya onetyuwa, umhlwa unokuvela kwiminyaka emi-5 ukuya kwesixhenxe. Ukuba ikhoyili ikhuselwe, ingahlala iminyaka eyi-15 ukuya kwengama-25 phambi kokuba kuqale umhlwa. Kufuneka ucoce kwaye ukhangele iikhoyili ezikufutshane nonxweme rhoqo. Zihlambe ngamanzi amatsha rhoqo emva kweenyanga ezimbalwa ukukhupha ityuwa. Sebenzisa iingubo ezongezelelweyo ukuba unako. Jonga umhlwa okanye umonakalo ubuncinane kabini ngonyaka.
Uhlobo lokusiNgqongileyo |
Ixesha eliqhelekileyo lokubonakala kokuQala komhlwa |
IiMeko eziPhambili kunye namaNqaku |
Unxweme (ngaphakathi kwemayile enye, >250 ft ukusuka elunxwemeni) |
I-5-7 iminyaka (uveliso oluthe ngqo) |
Ukubonakaliswa ngokuthe ngqo kwimimoya enetyuwa / ene-chloride; iindawo ezikhuselekileyo zihlala iminyaka eyi-15-25 ixesha elide |
Ngaphandle (emaphandleni, edolophini, elwandle olupholileyo) |
Iminyaka emininzi ukuya kwiminyaka engama-70 |
Kubandakanya imimandla yasemaphandleni kunye neendawo zasezidolophini ezinomoya ongcolisekileyo; iindawo ezipholileyo zaselwandle zibandakanyiwe |
Icebiso: Ukuba uhlala kufutshane nolwandle, coca kwaye ujonge ikhoyili yakho rhoqo. Oku kunceda ukuba ihlale ixesha elide.
Ungcoliseko lwemizi-mveliso
Iifektri kunye neendlela ezixakekileyo zenza izinto zibe nzima kwikhoyili eyenziwe ngamagalvanized. Bafaka iigesi ezinjengesulfure dioxide kunye neeoksidi zenitrogen emoyeni. Ezi gesi zixubana nemvula kwaye zenze imvula eneasidi. Imvula ene-asidi igulisa i-zinc coating. Kwezi ndawo, ikhoyili enezinki zihlala malunga nama-20 ukuya kuma-40 iminyaka ngaphambi kokuba kuvele umhlwa. Oku akukude kumoya ococekileyo.
Kufuneka ujonge ikhoyili enezinki kwiindawo zasefektri rhoqo. Jonga umhlwa omhlophe, umhlwa obomvu, imikrwelo, kunye neengubo ezigugileyo. Coca ikhoyili rhoqo kwiinyanga ezintathu ukuya kwezintandathu. Nika ingqalelo kumalungu, iiwelds, kunye neendawo ezifumana ukusetyenziswa kakhulu. Sebenzisa iingubo ezongezelelweyo ukuba unako. Khetha i-zinc etyebileyo yokugquma ukuze ukhuseleke ngcono kwiindawo ezinzima.
Qwalasela iileyile zomphezulu rhoqo emva kweenyanga ezintathu.
Jonga amalunga nyanga zonke ukuze ufumane umhlwa.
Jonga iindawo ezisetyenziswa kakhulu rhoqo emva kweenyanga ezimbini.
Coca kwaye ulungise umonakalo ngokukhawuleza xa uyibona.
Qaphela: Ukujonga rhoqo kunye nokusebenzisa i-zinc coatings engqindilili kunceda icoil yakho ilwe nongcoliseko kwaye ihlale ixesha elide.
Thintela Umhlwa oMhlophe kwiKhoyili yeGalvanized
Yintoni Umhlwa omhlophe?
Ngamanye amaxesha ubona umaleko omhlophe, ogqabhukileyo kwikhoyili yentsimbi. Oku kubizwa ngokuba ngumhlwa omhlophe. Kwenzeka xa ikhoyili ihleli kwiindawo ezifumileyo ezinomoya omncinci. Umhlwa omhlophe ukhangeleka njengomgubo okanye u-chalky, kungekhona njenge-rust ebomvu. Yenziwe ngeemveliso ze-zinc corrosion. Ezi ziquka i-zinc hydroxide, i-zinc oxide, kunye ne-zinc carbonates. Ukufuma kusabela kunye ne-zinc yokugquma ukwenza ezi khompawundi. Oku kwenzeka ngakumbi ukuba umoya awukwazi ukujikeleza ikhoyili. Abantu bakwayibiza ngokuba 'ibala lokugcina' okanye 'ibala lokugcina elimanzi.'
Umhlwa omhlophe uhlala uhleli phezu komhlaba kwaye awulonzakalisanga ukhuseleko lwezinki. Ngokuhamba kwexesha, i-zinc hydroxide iyatshintsha ibe yizinc oxide kunye ne-zinc carbonate. Ukuba ushiya ikhoyili ngaphandle, umhlwa omhlophe uhlala uphela njengoko ujika ube yimichiza ezinzileyo.
Qaphela: Umhlwa omhlophe uthetha ukuba ukufuma kubambeke kwi-zinc coating. Luphawu lokujonga indlela oyigcina ngayo kwaye uyiphathe njani ikhoyili yakho.
Iindlela Zokuthintela
Unokumisa umhlwa omhlophe ngokwenza izinto ezimbalwa ezilula. Ngalo lonke ixesha gcina iikhoyili zentsimbi kwindawo ezomileyo ezinomoya olungileyo. Musa ukuzibeka phantsi. Sebenzisa izikhewu ukuze umoya uhambe phakathi kweekhoyili. Musa ukupakisha iikhoyili ezisondelelene kakhulu. Oku kubamba ukufuma kwaye kunceda ukuvela komhlwa omhlophe.
Xa uhambisa iikhoyili, zibophe ngeekhava ezingenamanzi kwaye ukhusele imiphetho. Ukuba ubona iikhoyili ezimanzi, zomise ngokukhawuleza. Yahlula amashiti amanzi ukuze umoya ufikelele kuwo.
Jonga iikhoyili rhoqo ukufumana umhlwa omhlophe kwangoko. Ukuba uyayibona, coca indawo ngesepha epholileyo kunye namanzi. Kwiindawo ezinzima, sebenzisa isisombululo se-asidi esibuthathaka kwaye uhlambulule kakuhle.
Nxiba iingubo ezikhuselayo njengepeyinti etyebileyo ngezinc, i-epoxy, okanye i-powder coatings ukuze ukhuseleke ngakumbi. Ukuba ubona imikrwelo okanye iindawo ezingenanto, zilungise nge-zinc-spray-spray okanye iingubo ezityebileyo ze-zinc. Sebenzisa igeyiji ukujonga umaleko we-zinc kwaye uqinisekise ukuba isakhusela kakuhle.
Gcina iikhoyili kude nobhedu, ubhedu, okanye ezinye iintsimbi ezibangela ukuhlwa kwegalvanic. Qinisekisa ukuba indawo yokugcina ihlala ngaphantsi kwe-60% yokufuma. Ukuba kufuneka ugcine iikhoyili ngaphandle, zigqume ngeetarp ezingangeni manzi kwaye uphakamise elinye icala lokukhupha amanzi.
Icebiso: Ukugcina iikhoyili kakuhle kunye nokusebenza ngokukhawuleza zezona ndlela zilungileyo zokumisa umhlwa omhlophe kwaye ugcine ikhoyili yakho yentsimbi yomelele.
Iicoyile zentsimbi azivuthi lula. Ingubo ye-zinc ikhusela intsimbi engaphantsi. Kodwa akukho khoyili inokunqanda umhlwa ngonaphakade. Kufuneka ucoce ikhoyili yakho rhoqo. Lungisa nawuphi na umonakalo ngokukhawuleza ukunceda i-zinc ixesha elide. Ukuba uyayinyamekela, ikhoyili yakho ingahlala iminyaka engama-20 ukuya kuma-50. Xa ukhetha intsimbi, cinga ngezi zinto:
Okusingqongileyo: Iindawo ezikufuphi nolwandle okanye iifektri zifuna ukhuseleko olongezelelweyo.
Ubukhulu be-zinc yokwambathisa: Iingubo ezityebileyo ezivela kwi-galvanizing yediphu eshushu zihlala ixesha elide.
Ugcino: Coca kwaye ujonge iikhoyili zakho zentsimbi rhoqo.
Ukuba wenza ukhetho olufanelekileyo kwaye ukhathalele ikhoyili yakho, inokuhlala iminyaka emininzi.
FAQ
Ihlala ixesha elingakanani ikhoyili yentsimbi ngaphandle?
Unokulindela ukuba ikhoyili yentsimbi ihlale iminyaka engama-20 ukuya kuma-50 ngaphandle. Ingubo ye-zinc evela kwi-hot-dip galvanizing ikhusela intsimbi. Kwiindawo ezipholileyo, ihlala ixesha elide. Kwiindawo eziselunxwemeni okanye kwimizi-mveliso, unokubona umhlwa ngokukhawuleza.
Ngaba unokupeyinta phezu kwekhoyili yentsimbi?
Ewe, unokupeyinta ngaphezulu kwekhoyili yentsimbi. Coca umphezulu kuqala. Sebenzisa i-primer eyenzelwe ukugquma i-zinc. Ipeyinti inceda ukukhusela ikhoyili kwaye inokuphucula ukubonakala kwayo.
Yintoni ebangela umhlwa omhlophe kwikhoyili yentsimbi?
Umhlwa omhlophe wenzeka xa ukufuma kuvaleleke kwi-zinc coating. Oku kwenzeka rhoqo ngexesha lokugcina. Unokuyithintela ngokugcina ikhoyili yentsimbi yomile kwaye uvumele umoya ukuba ujikeleze.
Uyilungisa njani imikrwelo kwikhoyili yentsimbi?
Coca umkrwelo ngesepha ephakathi kunye namanzi. Yomisa indawo. Qaba ipeyinti etyebileyo ngezinc okanye isitshizi esibandayo se-galvanizing. Oku kubuyisela i-zinc coating kwaye ikhusela intsimbi engaphantsi.
Ngaba ikhoyili yentsimbi ekhandisiweyo ikhuselekile kwiinkqubo zamanzi okusela?
Ungasebenzisa i-coil yentsimbi ye-galvanized kwezinye iinkqubo zamanzi. I-zinc yokugquma ixhathisa ukubola. Nangona kunjalo, hlala ujonga iikhowudi zendawo kunye nemigangatho ngaphambi kokuba uyisebenzisele amanzi okusela.
