Qhov sib txawv tseem ceeb ntawm cov hlau me me thiab cov hlau galvanized yog tias cov hlau me me tau xeb yooj yim heev yog tias cov hlau tsis muaj txheej txheej zoo thaum galvanized hlau muaj kev tiv thaiv corrosion.
Cov hlau me me yog ib daim ntawv ntawm cov hlau uas yog cov hlau thiab cov pa roj carbon monoxide nrog rau qee yam kab. Galvanized hlau yog hlau lossis hlau uas muaj zinc txheej rau saum npoo. Lub tsho zinc no pab tiv thaiv corrosion.
Mild Steel yog dab tsi?
Mild steel yog ib daim ntawv ntawm carbon steel, uas yog ib tug alloy ntawm hlau thiab carbon. Cov hlau no muaj nyob ib ncig ntawm 0.05-0.25% carbon los ntawm qhov hnyav. Cov lus sib piv rau cov hlau me me muaj xws li cov hlau tsis tshua muaj carbon steel thiab cov hlau dawb-carbon. Tus nqi ntawm hom steel no yog tsawg. Ntxiv mus, nws muaj ntau yam khoom zoo rau ntau daim ntawv thov. Vim muaj cov ntsiab lus carbon tsawg, cov hlau me me yog softer dua li lwm hom carbon steels. Thiab tseem, lub zog ntawm cov hlau no tsawg. Cov khoom no muab cov hlau me me nrog qee qhov tshwj xeeb ntxiv xws li siab malleability thiab siab ductility.
Daim duab 01: Daim ntawv me me nrog xeb
Cov hlau me me muaj lub zog tensile tsawg. Txawm li cas los xij, nws yog pheej yig thiab yooj yim los tsim. Carburizing yog qhov tseem ceeb los ua kom lub ntsej muag hardness ntawm cov hlau. Nws yog cov txheej txheem kev kho cua sov uas cov hlau nqus cov pa roj carbon monoxide los ntawm ib puag ncig (cov pa roj carbon monoxide yuav tsum nyob rau hauv ib puag ncig) thaum cua sov cov hlau. Qhov siab ntawm cov hlau hauv cov hlau me me ua rau nws sib nqus. Txawm li cas los xij, yog tias cov hlau tsis muaj txheej txheej zoo, nws nkag mus rau xeb yooj yim heev.
Galvanized Iron yog dab tsi?
Galvanized hlau yog hlau lossis hlau uas muaj txheej tiv thaiv, zinc txheej rau saum npoo ntawm cov hlau, kom tsis txhob xeb. Lub tsho zinc no ua peb txoj hauv kev los tiv thaiv cov hlau lossis hlau;
- Zinc tsho tiv no tiv thaiv cov khoom corrosive los ntawm ncav cuag hlau lossis hlau nto.
- Nws ua raws li kev txi anode (txawm tias lub tsho zinc puas lawm, cov hlau raug puas tsuaj).
- Iron undergoes corrosion tom qab zinc
Daim duab 02: Galvanized Anchor Rods
Cov txheej txheem ntawm galvanizing yog kub-dip galvanizing; uas yog, dipping cov hlau ntawv nyob rau hauv ib tug molten zinc da dej. Tab sis nyob rau hauv tsheb, ib txheej nyias ntawm zin tsho yog siv los ntawm electro-galvanizing. Txawm li cas los xij, galvanized hlau los yog hlau tsis haum rau kev siv sab nraum zoov qhov twg cov hlau muaj kev cuam tshuam tas li rau dej, huab cua thiab acids. Hauv cov xwm txheej zoo li no, stainless hlau yog qhov zoo dua li cov hlau galvanized.
Qhov txawv ntawm Mild Steel thiab Galvanized Hlau yog dab tsi?
Mild Steel vs Galvanized Hlau |
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| Ib daim ntawv ntawm cov hlau uas yog cov hlau thiab carbon. | Ib Hlau lossis hlau uas muaj zinc txheej rau saum npoo los tiv thaiv xeb |
| Resistance to Corrosion | |
| Yooj yim nkag mus rau corrosion thaum raug ya raws thiab huab cua | Ntau lub tsho tiv thaiv zinc kom tsis txhob xeb. |
| Cov ntsiab lus carbon | |
| Muaj cov pa roj carbon me ntsis (ib puag ncig 0.05-0.25% los ntawm qhov hnyav) | Yuav ua tau cov hlau ntshiab uas tsis muaj cov pa roj carbon lossis hlau ua cov khoom siv. |
Summary – Mild Steel vs Galvanized Iron
Mild steel yog ib hom carbon steel. Carbon steels yog alloys ntawm hlau thiab carbon nrog rau lwm yam ntsiab. Galvanized hlau yog cov hlau ntshiab lossis hlau uas muaj cov txheej txheem tiv thaiv ntawm nws qhov chaw. Qhov sib txawv tseem ceeb ntawm cov hlau me me thiab cov hlau galvanized yog tias cov hlau me me tau xeb yooj yim heev yog tias cov hlau tsis muaj txheej txheej zoo thaum cov hlau galvanized muaj zinc txheej los tiv thaiv xeb.
