Cov yam ntxwv ntawm carbon steel yog dab tsi?
Cov pa roj carbon steel yog cov khoom siv dav siv hauv ntau qhov kev lag luam vim nws cov khoom tshwj xeeb thiab pheej yig. Nws yog tsim los ntawm cov hlau thiab cov pa roj carbon monoxide, nrog rau cov kab ntawm lwm cov ntsiab lus xws li manganese, phosphorus, sulfur, thiab silicon. Qhov feem pua ntawm cov pa roj carbon steel feem ntau yog li ntawm 0.05% mus rau 1.5%.
Mechanical Properties:
Ib qho ntawm cov yam ntxwv tseem ceeb tshaj plaws ntawm carbon steel yog nws cov khoom siv kho tshuab zoo heev. Cov pa roj carbon steel muaj lub zog tensile siab, ua rau nws zoo tagnrho rau kev siv cov qauv uas lub zog tseem ceeb heev. Lub zog meej ntawm carbon steel nyob ntawm seb cov pa roj carbon ntau npaum li cas thiab tuaj yeem txhim kho los ntawm kev kho cua sov.
Cov pa roj carbon steel kuj muaj qhov zoo hardness, uas yog hais txog nws lub peev xwm los tiv thaiv deformation thiab indentation. Cov cuab yeej no ua rau nws tsim nyog rau cov ntawv thov uas xav tau kev hnav hnyav, xws li cov cuab yeej txiav, riam, thiab cov hniav.
Tsis tas li ntawd, cov pa roj carbon steel nthuav tawm qhov nruab nrab mus rau qhov siab tshaj tawm lub zog, tso cai rau nws tiv taus ntau qhov kev ntxhov siab ua ntej deformation mus tas li. Nws kuj muaj qhov tsis tshua muaj ductility, txhais tau tias nws nyiam tawg es tsis yog deform nyob rau hauv kev ntxhov siab loj. Txawm li cas los xij, qhov no tuaj yeem txhim kho los ntawm kev ntxiv qee yam alloying ntsiab lus lossis hloov cov txheej txheem tsim khoom.
Corrosion Resistance:
Corrosion kuj yog ib qho tseem ceeb heev uas yuav tau xav txog thaum xaiv cov khoom siv rau ntau yam kev siv. Txawm hais tias carbon hlau tsis yog qhov muaj zog corrosion-resistant zoo li stainless hlau, nws tuaj yeem tiv thaiv los ntawm ntau yam kev kho deg lossis cov txheej txheem alloying.
Corrosion tuaj yeem tshwm sim hauv ob hom loj: **
1. ** General Corrosion:Hom kev xeb no tshwm sim thaum tag nrho qhov chaw ntawm cov pa roj carbon steel corrode uniformly. Nws tuaj yeem tiv thaiv tau los ntawm kev siv cov tshuaj tiv thaiv xws li cov xim lossis lwm cov tshuaj tiv thaiv corrosion.
2. Localized Corrosion:Daim ntawv no ntawm corrosion yog qhov txaus ntshai dua li nws tshwm sim hauv cov chaw tshwj xeeb ntawm cov pa roj carbon steel nto. Piv txwv li pitting corrosion thiab crevice corrosion. Localized corrosion tuaj yeem txo qis los ntawm alloying carbon steel nrog cov ntsiab lus xws li chromium lossis npib tsib xee, uas tsim cov txheej txheem oxide passive rau saum npoo, tiv thaiv corrosion ntxiv.
Machineability:
Cov pa roj carbon steel muaj qhov ua tau zoo heev, uas yog hais txog nws lub peev xwm los ua kom zoo li tus, txiav, thiab tsim rau hauv ntau qhov chaw thiab cov khoom. Nws tuaj yeem ua tau yooj yim machined siv cov txheej txheem xws li tig, milling, drilling, lossis sib tsoo. Lub xub ntiag ntawm carbon nyob rau hauv carbon steel txhim khu nws machinability vim yog tsim ntawm me me chips thaum lub sij hawm machining, uas pab txoj kev txiav.
Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias qee yam, xws li cov ntsiab lus carbon, alloying ntsiab, thiab hardness ntawm carbon steel, tuaj yeem cuam tshuam nws cov machinability. Cov ntsiab lus carbon siab thiab hardness tuaj yeem ua rau cov khoom nyuaj rau lub tshuab thiab xav tau cov cuab yeej tshwj xeeb thiab cov txheej txheem.
Weldability:
Cov pa roj carbon hlau muaj npe nrov rau nws qhov kev sib txuas, uas yog qhov yooj yim ntawm kev koom nrog ob lossis ntau daim ntawm cov khoom siv los ntawm cov txheej txheem vuam. Nws tuaj yeem ua tau yooj yim welded siv ntau yam txuj ci xws li arc vuam, tsis kam vuam, thiab oxyfuel gas vuam. Qhov no ua rau cov pa roj carbon steel yog qhov kev xaiv zoo tshaj plaws hauv kev tsim khoom thiab kev tsim kho, qhov uas yuav tsum tau siv vuam ntau zaus.
Lub weldability ntawm carbon steel nyob ntawm nws cov ntsiab lus carbon, nrog rau muaj lwm yam alloying ntsiab. Feem ntau, qis carbon steels (nyob ib ncig ntawm 0.20% carbon) pom zoo weldability piv rau cov pa roj carbon ntau dua. Txawm li cas los xij, preheating thiab tom qab vuam cov txheej txheem kev kho cua sov tuaj yeem ua haujlwm los txhim kho weldability ntawm cov pa roj carbon siab.
Kev kho cua sov:
Ib qho txiaj ntsig tseem ceeb ntawm carbon steel yog nws cov lus teb rau cov txheej txheem kho cua sov. Kev kho cua sov cuam tshuam nrog kev tswj cov cua sov thiab txias ntawm cov khoom los hloov nws cov khoom. Cov pa roj carbon steel tuaj yeem kho cua sov los txhim kho nws qhov hardness, lub zog, thiab toughness, ua rau nws muaj ntau yam rau ntau yam kev siv.
Cov txheej txheem kev kho cua sov feem ntau rau cov hlau muaj xws li annealing, normalizing, quenching, thiab tempering. Annealing txo hardness thiab txhim kho machinability, thaum normalizing txhim kho tag nrho cov khoom ntawm cov khoom. quenching thiab tempering txhim khu hardness, lub zog, thiab toughness ntawm carbon steel los ntawm nws mus rau ceev ceev txias thiab tom qab reheating.
Tus nqi:
Cov pa roj carbon steel yog tus nqi-zoo piv rau ntau lwm cov ntaub ntawv, ua rau nws siv dav hauv ntau yam lag luam. Kev nplua nuj ntawm cov hlau thiab carbon raws li cov ntaub ntawv raw, ua ke nrog cov txheej txheem ntau lawm, ua rau cov pa roj carbon steel yog qhov kev xaiv pheej yig rau cov tuam txhab thiab cov neeg siv khoom.
Daim ntawv thov:
Vim nws cov khoom siv zoo heev, carbon steel pom cov ntawv thov hauv ntau qhov kev lag luam. Qee qhov kev siv tseem ceeb ntawm carbon steel muaj xws li:
1. Kev tsim kho:Cov pa roj carbon steel yog siv dav hauv kev tsim kho kev lag luam rau cov qauv, kab teeb, thiab cov khoom siv ntxiv vim nws lub zog siab thiab kav ntev.
2. Automotive:Ntau yam khoom siv hauv tsheb, xws li chassis thav duab, ncua kev kaw lus, thiab lub cav qhov chaw, yog tsim los ntawm cov hlau vim nws lub zog siab thiab kev siv nyiaj.
3. Cov kav dej:Cov yeeb nkab carbon steel feem ntau yog siv los thauj cov kua thiab roj hauv cov kav dej vim lawv lub zog, weldability, thiab corrosion kuj thaum tsim nyog coated.
4. Tshuab:Cov pa roj carbon steel yog siv dav hauv kev tsim cov tshuab thiab cov cuab yeej siv vim nws cov machinability, weldability, thiab cov cuab yeej zoo heev.
5. Cov cuab yeej thiab Cutlery:Cov pa roj carbon steel yog siv los tsim ntau yam cuab yeej, riam, thiab cov khoom cutlery vim nws hardness, hnav tsis kam, thiab ntse ntug tuav.
** Hauv kev xaus, carbon steel yog ntau yam thiab siv cov khoom siv nrog cov khoom zoo kawg. Nws cov khoom siv zoo heev, kev tiv thaiv corrosion, machinability, weldability, tshav kub kho, thiab tus nqi-zoo ua rau nws tsim nyog rau ntau yam kev siv thoob plaws ntau yam lag luam. Kev nkag siab txog cov yam ntxwv ntawm cov pa roj carbon steel yog qhov tseem ceeb rau kev xaiv cov khoom tsim nyog rau lub hom phiaj tshwj xeeb thiab txhim kho nws cov kev ua tau zoo.
