Ob leeg hlau thiab cam khwb cia hlau yog cov hlau nrov, tab sis lawv feem ntau siv sib txawv.Qhov tseem ceeb ntawm qhov txawv ntawm ib qho ntawm lwm tus yog cov pa roj carbon ntau npaum li cas, thiab tsawg dua, ntau npaum li cas silicon.Txawm hais tias qhov no yuav zoo li qhov sib txawv me ntsis, nws muaj qhov cuam tshuam loj rau cov khoom thiab siv cov cam khwb cia hlau thiab hlau.
Cam khwb cia hlau: Cov txiaj ntsig thiab siv
Zoo li cov hlau, cam khwb cia hlau yog hlau-raws li alloy.Txawm li cas los xij, yuav tsum tau txiav txim siab cam khwb cia hlau, cov hlau yuav tsum muaj 2-4% carbon cov ntsiab lus thiab 1-3% silicon cov ntsiab lus los ntawm qhov hnyav.Qhov no chemistry imparts cam khwb cia hlau nrog ib tug xov tooj ntawm pab tau zog:
Cam khwb cia hlau tuaj yeem ua tau ntxiv rau hauv cov hlau grey, hlau dawb, hlau hlau, thiab malleable hlau.Txhua hom tsom rau kev txhim kho qee yam khoom rau ib daim ntawv thov tshwj xeeb, xws li hardness siab dua hauv cov hlau cam dawb.
Kev siv cov cam khwb cia hlau yog qhov dav, tab sis ntawm no yog ob peb daim ntawv thov tseem ceeb:
Cam khwb cia hlau frying lauj kaub thiab lwm yam cookware
Automotive cav thaiv, nres disks, thiab ntau qhov chaw
Cov laj kab vaj tsev nyob, cov teeb pom kev zoo nkauj, cov khoom siv hluav taws xob, thiab lwm yam khoom siv
Valves, fittings, thiab manhole npog hauv dej thiab dej phwj siv
Chains, gears, shafts, linkages, and moreSteel: Benefits and Uses
Hlau: Cov txiaj ntsig thiab siv
Zoo ib yam li cam khwb cia hlau, steels yog hlau-raws li alloys nrog ob peb pawg sib txawv.Txhua cov hlau muaj qee cov ntsiab lus carbon txog li 2% ntawm qhov hnyav thiab tuaj yeem muab faib ua carbon steel lossis hlau alloy.
Lawv tuaj yeem muab faib ua cov pa roj carbon tsawg, cov hlau tsis muaj steel, cov cuab yeej steel, microalloyed steels, thiab lwm yam.Thaum cov no tuaj yeem muab ntau yam txiaj ntsig ntxiv, xws li lub zog siab thiab kev tiv thaiv corrosion los ntawm stainless hlau, tsab xov xwm no yuav tsom rau cov hlau cam khwb cia zoo li cov uas tau hais los ntawm ASTM A148.
Txij li cov hlau cam khwb cia yog kim dua li cov hlau cam khwb cia, nws cov txiaj ntsig tseem ceeb tshaj cam khwb cia hlau yog:
Tensile Strength - Nyob ntawm cov alloy siv, cam khwb cia hlau tuaj yeem muaj zog tensile ntau dua li cov hlau cam khwb cia.
Toughness / Ductility - Nyob rau hauv kev ntxhov siab, hlau tuaj yeem deform (ib ntus lossis tas mus li) yam tsis muaj kev tawg.Txawm hais tias qhov no yuav txhais tau tias tsis tshua muaj zog nyob rau hauv qee yam kev siv, nws txo qhov kev pheej hmoo ntawm kev tawg thiab txhais tau tias muaj kev cuam tshuam zoo dua.
Weldability - Nyob ntawm cov alloy siv, steel muaj qhov zoo weldability, whereas cam khwb cia hlau yog nyuaj rau weld yam tsis ua rau tawg.
Thaum forging, dov, thiab casting yog txhua yam ua tau rau cov khoom siv hlau, qee qhov kev siv tseem ceeb tsom rau cov hlau cam yog:
Rail tsheb log, ncej, thiab bolsters
Mining machinery, cov khoom siv tsim kho, thiab cov tsheb thauj khoom hnyav
Heavy lub twj tso kua mis, li qub, thiab fittings
Turbochargers, cav thaiv, thiab lwm yam khoom siv tsheb
Turbines thiab lwm yam khoom siv hauv cov chaw nres tsheb fais fab
Machined cam khwb cia hlau thiab steel khoom:
cam khwb cia hlau yeej yooj yim dua thiab pheej yig dua rau tshuab dua cam khwb cia hlau, tab sis machinability sib txawv heev ntawm alloys.Yog li, yog tias koj tab tom tsim cov khoom lag luam uas xav tau kev ua haujlwm ntev, nws yuav tsim nyog los tshuaj xyuas cov khoom siv uas muaj los nrhiav ib qho uas muaj kev ua haujlwm zoo dua.
Tab sis txawm hais tias koj tsuas yog txwv rau cov ntaub ntawv nyuaj dua, kev paub txog, lub khw muag khoom hauv ntiaj teb tuaj yeem txo lub sijhawm ua haujlwm kom txuag tau tus nqi machining.Cia peb muab kev pabcuam machining ceev, txhim khu kev qha rau koj lub tuam txhab ntau yam ntaub ntawv thiab cov khoom lag luam.
Post lub sij hawm: Feb-06-2023