Thaum lub hau ntswj raug cov dej noo thiab oxygen, nws yuav raug oxidation, yog li corroding. Yuav ua li cas raws nraim zinc tiv thaiv screws los ntawm corrosion? Zoo, zinc tseem tuaj yeem corrode, tab sis nws corrodes ntawm tus nqi qeeb qeeb dua li lwm cov hlau thiab alloys.
Ntev npaum li cas zinc plated screws nyob sab nraud?
(Cov ntsia hlau no muaj los ntawm McFeeley's.) Ob leeg ntawm cov xeb-tiv taus cov ntsia hlau no tau ntsuas los tiv thaiv qhov chaw ntub dej (hauv chav dej noo nrog 5% ntsev tsuag tshuaj) tsawg kawg 500 teev. Los ntawm kev sib piv, zoo tib yam zinc-plated screws raug ntsuas kom kawg kwv yees 100 teev ua ntej thawj xim liab tshwm.
Puas zinc plated screws OK rau siv sab nraum zoov?
Zinc-plated (electroplated galvanized screws) yog coated nyob rau hauv zinc hmoov. Qhov tshwm sim yog qhov ci ntsa iab uas yogxeb tiv taus tab sis tsis yog siv sab nraum zoov tooj dag-plated thiab tooj liab-plated screws yuav tsis xeb, uas ua rau lawv xaiv zoo rau cov haujlwm sab nraum zoov, tab sis lawv tsis yog. muaj zog li steel.
Puas yog zinc screws corrosion resistant?
Galvanized screws muaj zinc txheej uas ua rau lawv tiv taus corrosion Lawv yog qhov tshwj xeeb tshaj yog siv rau cov ntoo kho, vim tias cov tshuaj siv los kho cov ntoo tuaj yeem muaj kev cuam tshuam corrosive rau steel screws. Cov ntsia hlau sab nraum zoov no yog coated hauv zinc los ntawm ib qho ntawm ob txoj kev: electro-plating, lossis kub-dipping.
Zib plawg puas yuav xeb?
Zoo li txhua yam hlau, zinc corrodes thaum raug huab cua thiab ya raws. Txawm li cas los xij,lub caij no tsis xeb zoo li feem ntau lwm cov hlau… Thaum cov txheej txheem carbonate muaj cov khoom tiv thaiv, zinc yog cov hlau reactive thiab yuav maj mam erode vim corrosion dhau sij hawm. Txawm li cas los xij, tus nqi ntawm corrosion ntawm zinc yog 1/30 ntawm cov hlau.
