Dab tsi yog steel?
Lub ntsiab lus thiab keeb kwm ntawm Steel
Kev tsim cov txheej txheem steel
Classification ntawm Steel
Daim ntawv thov teb ntawm steel
1, Cov Lus Txhais thiab Keeb Kwm ntawm Hlau
Hlau yog cov khoom siv hlau uas muaj cov ntsiab lus xws li hlau thiab carbon. Nws cov yam ntxwv muaj xws li siab hardness, hnav tsis kam, corrosion kuj, zoo plasticity, thiab siab zog. Cov keeb kwm ntawm cov hlau tuaj yeem taug qab mus rau ib puag ncig 1500 BC, thaum hlau tau tshawb pom thaum lub sijhawm ua cov tooj liab smelting. Tom qab lub sijhawm ntev ntawm txoj kev loj hlob, steel tau dhau los ua ib qho ntawm cov khoom siv hlau siv los ntawm tib neeg.
2, Kev faib tawm ntawm cov hlau
Raws li cov ntsiab lus ntawm cov ntsiab lus carbon thiab cov txheej txheem tsim khoom sib txawv ntawm cov hlau, cov hlau tuaj yeem muab faib ua ntau hom, xws li cov pa roj carbon tsawg, nruab nrab carbon steel, alloy steel, lub zog steel, stainless hlau, thiab lwm yam. Txhua hom hlau muaj qhov sib txawv thiab siv tau.
3, Kev tsim cov txheej txheem steel
Muaj ntau txoj hauv kev rau kev tsim cov hlau, tab sis cov txheej txheem yooj yim suav nrog cov kauj ruam xws li kev ua hlau, steelmaking, thiab dov. Hauv cov txheej txheem ntawm kev tsim cov hlau, cov hlau ore tau dhau los ua cov txheej txheem xws li txo qhov kub thiab txias, melting, thiab refining los tsim cov hlau tsis huv. Hauv cov txheej txheem steelmaking, cov khoom sib txawv xws li carbon, manganese, chromium, cobalt, thiab lwm yam yog ntxiv rau cov hlau nyoos kom tshem tawm cov impurities thiab tau txais ntau hom hlau nrog cov tshuaj sib txawv.
4, Daim ntawv thov teb ntawm steel
Vim nws lub zog siab, hnav tsis kam, corrosion kuj, zoo plasticity, thiab siab zog, steel muaj ntau yam kev siv hauv ntau qhov chaw. Hlau tuaj yeem siv los tsim cov tsev, nkoj, tsheb, tsheb ciav hlau, txoj kev, txuas hniav, tshuab, khoom siv hluav taws xob, thiab lwm yam. Tsis tas li ntawd, steel kuj yog ib qho tseem ceeb raw khoom rau kev tsim riam phom, txiav cov cuab yeej, steel tuav, steel kav, thiab lwm yam ntaub ntawv.
Hauv kev xaus, steel plays lub luag haujlwm tseem ceeb hauv kev tsim khoom niaj hnub no. Nws cov txheej txheem tsim khoom thiab daim ntawv thov kev lag luam muaj kev paub ntau thiab kev paub dhau los, thiab tuaj yeem hais tau tias yog ib qho tseem ceeb ntawm tib neeg txoj kev vam meej.
