Dab tsi yog hlau siv rau thoob?

Thaum nws los txog rau thoob, feem ntau cov hlau siv yog galvanized steel. Qhov no yog ib hom hlau uas tau coated nrog ib txheej zinc kom nws tiv taus corrosion thiab xeb. Cov txheej txheem galvanization tseem muab cov hlau ci ci, uas ua rau nws zoo tagnrho rau siv hauv cov thoob thiab lwm yam khoom siv hauv tsev.
Zinc yog ib qho tseem ceeb hauv cov txheej txheem galvanization, vim nws yog qhov muab kev tiv thaiv kev tiv thaiv uas ua rau cov hlau tsis xeb. Thaum cov hlau yog dipped rau hauv ib da dej ntawm molten zinc, zinc molecules daim ntawv cog lus nrog cov hlau molecules, tsim kom muaj zog thiab ruaj txheej. Cov txheej txheem no tuaj yeem ua tiav los ntawm kev siv cov txheej txheem kub-dip galvanization los yog txoj kev electro-galvanization, ob qho tib si uas ua rau muaj kev ua tiav zoo uas siv tau ntev.
Lwm cov hlau uas nrov siv rau cov thoob yog aluminium. Cov hlau no yog lub teeb yuag, ruaj, thiab tiv taus xeb thiab corrosion, ua rau nws zoo tagnrho rau siv sab nraum zoov. Aluminium thoob kuj muaj qhov zoo ntawm kev yooj yim los ntxuav thiab tswj, vim lawv tsis tas yuav muaj kev kho tshwj xeeb kom lawv saib lawv qhov zoo tshaj plaws.
Txawm li cas los xij, ib qho tsis zoo ntawm kev siv txhuas rau cov thoob yog tias nws tsis muaj zog npaum li cov hlau, thiab tej zaum yuav dent lossis deform thaum lub sij hawm siv hnyav. Tsis tas li ntawd, aluminium yog cov khoom siv kim dua li cov hlau, uas tuaj yeem ua rau nws tsis tshua muaj txiaj ntsig rau cov neeg siv nyiaj txiag.
Hauv kev xaus, galvanized steel thiab aluminium yog ob qho tib si hlau siv rau thoob. Txawm hais tias txhua yam khoom muaj nws qhov tshwj xeeb zoo thiab qhov tsis zoo, ob qho tib si muaj kev ruaj khov, siv tau ntev, thiab muaj peev xwm sawv ntawm qhov nruj ntawm kev siv txhua hnub. Thaum xaiv lub thoob rau koj cov kev xav tau, nws yog ib qho tseem ceeb uas yuav tau xav txog cov khoom uas yuav zoo tshaj plaws rau koj cov kev xav tau thiab cov peev nyiaj.