Dab tsi yog Malleable Iron Disadvantages?

Taw qhia

Malleable hlau yog ib hom cam khwb cia hlau uas tau dhau los ntawm kev kho cua sov kom muab nws cov khoom ntawm ductility thiab toughness. Nws muaj ntau yam kev siv hauv kev lag luam sib txawv, los ntawm kev ua liaj ua teb mus rau kev tsim kho mus rau tsheb. Txawm li cas los xij, zoo li lwm yam khoom siv, malleable hlau muaj nws tus kheej cov teeb meem uas yuav tsum tau txiav txim siab ua ntej siv nws hauv txhua daim ntawv thov.

Qhov tsis zoo ntawm Malleable Hlau **

1. ** Brittleness:
Txawm hais tias nws txhim kho ductility thiab toughness piv rau lwm hom cam khwb cia hlau, malleable hlau tseem muaj ib tug nyiam nkig. Qhov no txhais tau tias nws tuaj yeem tawg lossis tawg yooj yim, tshwj xeeb tshaj yog nyob rau hauv kev poob siab lossis cuam tshuam. Nyob rau hauv daim ntawv thov uas cov khoom yuav raug rau cov hom loads, malleable hlau yuav tsis yog qhov kev xaiv zoo tshaj plaws.

2. Tsawg corrosion kuj:
Malleable hlau yog raug rau corrosion, tshwj xeeb tshaj yog thaum raug hnyav ib puag ncig tej yam kev mob los yog corrosive tshuaj. Cov khoom yuav tsum tau coated nrog ib txheej tiv thaiv kom tsis txhob xeb lossis lwm yam corrosion.

3. Tsawg tensile zog:
Malleable hlau muaj lub zog tensile qis dua piv rau lwm cov ntaub ntawv xws li hlau lossis txhuas. Qhov no txhais tau hais tias nws yuav tsis tsim nyog rau cov ntawv thov uas cov khoom yuav raug kev nyuaj siab los yog nro loads.

4. Tsawg weldability:
Malleable hlau yog qhov nyuaj rau vuam piv rau lwm cov ntaub ntawv. Qhov no yog vim nws muaj cov ntsiab lus carbon siab, uas tuaj yeem ua rau tawg lossis lwm yam tsis xws luag hauv cov txheej txheem vuam. Vuam malleable hlau yuav tsum tau ceev faj tswj ntawm vuam tej yam kev mob thiab tej zaum yuav tsum tau preheating los yog tom qab-weld tshav kub kev kho mob kom tsis txhob tawg.

5. Tus nqi siab dua:
Malleable hlau yog kim dua lwm hom cam khwb cia hlau, thiab txawm tias qee hom hlau. Qhov no yog vim cov txheej txheem ntau lawm yuav tsum tau hloov cov khoom ntawm cam khwb cia hlau mus rau malleable hlau. Tus nqi nce no yuav yog qhov txwv rau qee daim ntawv thov.

6. Tsawg kub tsis kam:
Malleable hlau muaj qhov qis dua melting piv rau lwm cov ntaub ntawv xws li hlau lossis txhuas. Qhov no txhais tau hais tias nws yuav tsis haum rau cov ntawv thov uas muaj qhov kub thiab txias, lossis qhov twg cov khoom yuav raug thermal cycling.

Xaus

Malleable hlau muaj qhov zoo dua lwm hom cam khwb cia hlau, tab sis kuj muaj nws tus kheej cov teeb meem uas yuav tsum tau xav txog ua ntej siv nws hauv ib daim ntawv thov. Kev nkag siab txog cov kev txwv no tuaj yeem pab xyuas kom meej tias cov khoom siv tau siv tau zoo thiab nyab xeeb. Txawm hais tias nws cov kev txwv, cov hlau tsis muaj hlau tseem yog cov khoom tseem ceeb hauv ntau qhov kev lag luam sib txawv. Nws ua ke ntawm ductility thiab toughness ua rau nws xaiv zoo nyob rau hauv ntau daim ntawv thov uas lwm yam ntaub ntawv yuav nkig dhau los yog tsis muaj zog.