Ngokubhekiselele kwimbonakalo yeshishini, kukho umdla ohlaziyiweyo kwintsimbi yemozulu. Intsimbi yemozulu, eyaziwa ngokuba yintsimbi yemozulu, inenkangeleko yemozulu yendalo kunye nomhlwa. Idala umdla kunye nokuthungwa ngelixa izalisekisa inkangeleko yeshishini okanye yobunjineli.

Njengazo naziphi na ezinye izinto zokwakha, i-weathering steel ineengenelo kunye nokungonakali. Kubaluleke kakhulu ukwazi ukuba yintoni insimbi yemozulu kunye neempawu zayo.

Yintoni imozulu yentsimbi?

I-Weathering steel, ngamanye amaxesha ibizwa ngokuba yi-weathering steel, luhlobo lwentsimbi yemozulu ekwazi ukumelana nokubola. Ngenxa yokukwazi ukwenza i-coating ekhuselayo kumhlwa, i-weathering steel lukhetho oludumileyo kwimifanekiso eqingqiweyo yangaphandle, i-landscaping, i-facade yesakhiwo kunye nezinye izicelo zangaphandle. Umaleko okhuselayo, obizwa ngokuba yiverdigris, wenza kwisithuba nje seenyanga ezintandathu zokuchanabeka kwioksijini nokufuma.
I-Verdigris, evelisa i-coating emnyama emnyama, ikhusela intsimbi ekuqhumeni okuqhubekayo kwimvula, ikhephu, inkungu, iqhwa, i-sleet kunye nezinye iimeko zemozulu. Ngamafutshane, i-rust yentsimbi, kunye ne-rust yenza i-coating yokukhusela. Olu luhlu lusebenza kakhulu xa luvunyelwe ukuzinza nokwakha ngexesha.

Ukuvelisa i-patina yokukhusela, insimbi kufuneka ibonakaliswe kumanzi kunye ne-oxygen. Xa intsimbi isesichengeni, lo maleko womhlwa okhuselayo uthabatha iinyanga nje ezimbalwa ukwakheka. Ingubo iguquguqukayo kwaye iyaqhubeka ihlaziywa phantsi kweemeko zemozulu ezahlukeneyo.

I-Cor-ten ligama lorhwebo eliphethwe yi-US Steel elichaza iingenelo ezimbini eziphambili ezinomtsalane zeNsimbi: ukuxhathisa ukudleka kunye namandla okuqina. Yaphuhliswa ekuqaleni ngeminyaka yoo-1930 ukunceda ukwakha iinqwelo zamalahle kumzila kaloliwe.

Uhambo lwenqwelo yamalahle lwaba yimpumelelo, kwaye intsimbi yeCor-Ten yaba yeyona nto ithandwayo yokukhethwa kwimifanekiso eqingqiweyo yobugcisa bangaphandle ngeminyaka yoo-1960.

Ukongeza kwi-corrosion resistance, i-weathering steel isusa imfuno yepeyinti okanye i-weatherproof eyongezelelweyo.

Kutheni imozulu ikhusela intsimbi?


I-patina eyenziwe kwintsimbi yemozulu inomaleko wangaphakathi nangaphandle. Umaleko wangaphandle uhlala uguquka kwaye uhlaziywa ngokutsha ngeemveliso ezintsha zokuthintela umhlwa ezingabambeleliyo. Umaleko wangaphakathi wenziwa ikakhulu ngamasuntswana acolekileyo apakishwe ngokuxineneyo.

Ekugqibeleni, umaleko wangaphandle uphelelwa ngamandla kwaye umaleko wangaphakathi uqala ukuvelela ngakumbi. Yile nto enika i-weathering steel inkangeleko yayo ekhethekileyo kunye nokuthungwa. Amaleko angaphandle aguquguquka, kwaye amaleko angaphakathi aye axinene.


Uluhlu lwangaphakathi luqulunqwe kakhulu yi-goethite engekho yesigaba, yingakho insimbi yemozulu ineempawu zokukhusela. Kutheni kunjalo? Ngenxa yokuba imveliso egsiweyo iba ngqindilili kangangokuba amanzi akakwazi ukugqwalisa intsimbi yangaphakathi.

Xa sele iphuhliswe kakuhle, umaleko wangaphandle wentsimbi yemozulu kufuneka ube mpuluswa kwaye uzive ngathi yingubo ekhuselayo.