Dab tsi yog qhov feem ntau steel phaj?
Hlau daim hlau yog dav siv nyob rau hauv ntau yam lag luam, nrog rau kev tsim kho, kev tsim, kev thauj mus los, thiab lub zog. Cov phaj no yog qhov tseem ceeb rau kev muab lub zog, ruaj khov, thiab ruaj khov hauv ntau daim ntawv thov. Tab sis dab tsi raws nraim yog feem ntau steel phaj? Nyob rau hauv tsab xov xwm no, peb yuav tshawb txog ntau hom steel phaj thiab txheeb xyuas qhov uas sawv tawm raws li feem ntau siv.
Ua ntej dhia mus rau hauv qhov tshwj xeeb, nws yog ib qho tseem ceeb kom nkag siab tias cov hlau phaj yog dab tsi thiab lawv tsim tau li cas. Cov ntawv hlau yog cov ntawv tiaj tus hlau uas tau tsim los ntawm cov txheej txheem hu ua kub dov. Cov txheej txheem no suav nrog cua sov cov hlau slab rau qhov kub thiab txias, feem ntau siab dua 1700 degrees Fahrenheit, thiab tom qab ntawd dhau los ntawm cov txheej txheem ntawm cov chais kom txo nws cov tuab thiab ua tiav qhov ntev xav tau.
Cov phaj hlau tuaj yeem raug cais raws li lawv cov tshuaj muaj pes tsawg leeg thiab cov khoom siv kho tshuab. Cov feem ntau muaj xws li carbon steel daim hlau, alloy steel daim hlau, thiab stainless hlau daim hlau. Txhua hom muaj nws cov yam ntxwv tshwj xeeb thiab tsim nyog rau cov ntawv thov tshwj xeeb.
Carbon Steel Phaj
Cov pa roj carbon steel feem ntau yog tsim los ntawm cov hlau thiab carbon, nrog me me ntawm lwm cov ntsiab lus xws li manganese, phosphorus, sulfur, thiab silicon. Cov ntsiab lus carbon hauv cov phaj no tuaj yeem nyob ntawm {{0}}.05% mus rau 2.0%. Cov pa roj carbon steel yog paub txog lawv lub zog siab thiab zoo weldability. Lawv tau dav siv nyob rau hauv kev tsim kho kev lag luam rau cov tsev, txuas hniav, thiab infrastructure tej yaam num. Tsis tas li ntawd, cov pa roj carbon steel feem ntau yog siv rau hauv tshuab, tsheb, thiab kev siv nkoj tsim.
Alloy Steel Phaj
Alloy steel phaj yog tsim los ntawm kev ntxiv ntau yam alloying ntsiab rau carbon steel. Cov ntsiab lus no tuaj yeem suav nrog manganese, nickel, chromium, molybdenum, thiab vanadium, thiab lwm yam. Los ntawm kev hloov cov khoom sib xyaw ntawm cov hlau, cov hlau phaj tuaj yeem muab cov khoom zoo tshaj plaws xws li muaj zog, hardness, thiab corrosion kuj. Alloy steel daim hlau pom cov ntawv thov hauv ntau qhov kev lag luam, suav nrog aerospace, roj thiab roj, tsim hluav taws xob, thiab cov tshuab hnyav.
Stainless Hlau Phaj
Stainless hlau phaj yog tsim los ntawm hlau thiab chromium, nrog rau kev sib ntxiv ntawm lwm yam xws li npib tsib xee, molybdenum, thiab titanium. Cov ntsiab lus chromium siab nyob rau hauv cov phiaj no muab kev tiv thaiv corrosion zoo heev, ua rau lawv tsim nyog rau kev siv hauv qhov chaw nruj heev. Stainless hlau phaj yog dav siv nyob rau hauv kev lag luam khoom noj khoom haus, tshuaj nroj tsuag, khoom siv kho mob manufacturing, thiab architecture. Lawv qhov kev thov kom zoo nkauj, nrog rau lawv cov kev tiv thaiv corrosion, ua rau lawv muaj kev xaiv nrov rau kev kho kom zoo nkauj thiab.
Feem ntau Cov Hlau Phaj
Tam sim no peb tau npog peb hom loj ntawm cov hlau phaj, nws yog lub sijhawm los txheeb xyuas qhov feem ntau. Tom qab ua tib zoo xav, nws tuaj yeem sib cav tias cov pa roj carbon steel phaj yog hom siv ntau tshaj plaws nyob rau hauv ntau yam kev lag luam. Yog vim li cas rau lawv muaj koob meej yog manifold.
Ua ntej, cov pa roj carbon steel phaj kuj pheej yig dua piv rau cov hlau alloy thiab stainless hlau daim hlau. Qhov no ua rau lawv xaiv qhov kev xaiv zoo tshaj plaws rau cov nqi-rhiab heev yam tsis muaj kev cuam tshuam rau lub zog thiab kev ntseeg siab.
Thib ob, cov pa roj carbon steel phaj muaj kev sib txuas zoo heev, tso cai rau kev tsim khoom yooj yim thiab sib dhos. Cov yam ntxwv no tshwj xeeb tshaj yog muaj txiaj ntsig zoo hauv kev tsim kho thiab kev tsim khoom lag luam uas cov khoom sib txawv yuav tsum tau koom ua ke.
Thib peb, cov pa roj carbon steel phaj muaj ntau yam ntawm cov qib thiab thicknesses muaj, muab kev yooj yim hauv kev tsim thiab siv. Txawm hais tias nws yog cov qauv hnyav hnyav lossis cov khoom sib sib zog nqus, cov pa roj carbon steel tuaj yeem raug kho kom tau raws li cov kev xav tau tshwj xeeb.
Tsis tas li ntawd, kev nplua nuj ntawm cov khoom siv carbon steel thiab tsim cov txheej txheem tsim ua rau nws siv dav. Steel mills thoob ntiaj teb tsim ib qho tseem ceeb ntawm cov pa roj carbon steel daim hlau, ua kom muaj kev ruaj khov rau ntau yam kev lag luam.
Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias kev xaiv ntawm cov phaj steel feem ntau yuav txawv nyob ntawm seb qhov kev lag luam tshwj xeeb thiab daim ntawv thov. Piv txwv li, stainless hlau daim hlau tej zaum yuav muaj ntau dua nyob rau hauv cov khoom noj khoom haus kev lag luam vim lawv corrosion kuj thiab tu cev.
Hauv kev xaus, steel phaj ua lub luag haujlwm tseem ceeb hauv kev tsim kho, tsim khoom, thiab kev thauj mus los. Thaum muaj ntau hom hlau phaj muaj, cov pa roj carbon steel phaj sawv tawm raws li feem ntau siv vim lawv pheej yig, weldability, thiab ntau qib. Nws yog ib qho tseem ceeb los txiav txim siab txog cov kev cai tshwj xeeb thiab cov qauv kev lag luam thaum xaiv cov phaj hlau tsim nyog rau txhua daim ntawv thov.
