Raw Khoom Pretreatment
Core Function: Tshem tawm cov teeb meem tsis zoo xws li sulfur thiab phosphorus los ntawm cov hlau molten, muab cov hlau molten tsim nyog rau kev tsim steel tom ntej. Nws kuj tswj cov khoom siv thiab kev xav tau sib npaug ntawm lub tshuab hluav taws xob tawg thiab hloov pauv, ua kom ruaj khov ntau lawm.
Cov ntsiab lus tseem ceeb ua haujlwm: tshem tawm slag yuav tsum ua kom tiav. Molten hlau yuav tsum tau muab khaws cia, sib tov nyob rau hauv muaj pes tsawg leeg, thiab homogenized nyob rau hauv qhov kub thiab txias kom ntseeg tau ruaj khov tom qab cov tshuaj tiv thaiv.
Hloov Smelting (Core Process)
Core Function: Los ntawm tshuab hauv siab - siab oxygen, cov pa roj carbon ntau thiab impurities hauv cov hlau molten raug oxidized thiab tshem tawm. Qhov no yog ib kauj ruam tseem ceeb hauv kev tswj cov txheej txheem ntawm cov hlau molten.
Cov ntsiab lus tseem ceeb ntawm Kev Ua Haujlwm: Kev tswj hwm nruj ntawm oxygen kom muaj nuj nqis thiab cov roj muaj pes tsawg leeg yuav tsum zam kom tsis txhob dhau -oxidation lossis qis dua - oxidation. Nyob rau tib lub sijhawm, kev tiv thaiv lub tshuab hluav taws xob zoo yog qhov tseem ceeb rau kev siv cov cuab yeej siv tau ntev.
Ladle Refining
Core Function: Txuas ntxiv txhim kho steel zoo, tshem tawm cov pa phem thiab cov khoom siv, thiab ua kom zoo -tunes muaj pes tsawg leeg thiab kub kom ua tau raws li qhov yuav tsum tau ua ntawm qib siab -kawg steel. Tam sim no, lub hauv paus refining furnaces yog LF thiab RH: RH excels ntawm tshem impurities thiab sib sib zog nqus decarburization, thaum LF tuaj yeem ua tiav cua sov, desulfurization, deoxidation, thiab alloying.
Cov kauj ruam ua haujlwm tseem ceeb: Stirring kom ntseeg tau tias muaj pes tsawg leeg thiab qhov kub thiab txias, txhim kho cov tshuaj tiv thaiv kev ua haujlwm thiab txo qis desulfurization thiab lub sijhawm tshem tawm impurity.
Nruam Casting
Core Function: Nruam nruam nruam refined molten steel rau hauv cov hlau hlau uas tsim nyog, cuam tshuam ncaj qha rau cov txheej txheem dov tom ntej thiab qhov kawg steel zoo.
Cov kauj ruam ua haujlwm tseem ceeb: Kev tswj cov cua txias thiab kev ua kom muaj zog kom ntseeg tau tias cov khoom sib txawv ntawm cov billet. Tom qab straightening thiab txiav, deg tsis xws luag yuav tsum tau hais los tiv thaiv lawv los ntawm kev nqa mus rau hauv cov txheej txheem tom ntej.
