Tus neeg sawv cev carburizing yog cov khoom tseem ceeb ntawm cov pa roj carbon, lub luag haujlwm yog carburize.
Hauv cov txheej txheem smelting ntawm cov hlau thiab cov khoom hlau, qhov poob ntawm cov pa roj carbon hauv cov hlau molten feem ntau nce ntxiv vim muaj cov yam ntxwv xws li lub sijhawm smelting thiab lub sijhawm ntev overheating, ua rau cov pa roj carbon hauv cov hlau molten tsis tuaj yeem ncav cuag tus nqi theoretical xav tau los ntawm kev ua kom zoo.
Yuav kom ua tau raws li qhov ntau ntawm cov pa roj carbon uas poob rau hauv cov txheej txheem smelting ntawm hlau thiab hlau, cov tshuaj uas muaj carbon ntxiv rau hu ua carburizer.
Cov neeg sawv cev roj av coking siv tau rau hauv kev casting grey cast iron, cov ntsiab lus carbon feem ntau yog 96 ~ 99%.
Muaj ntau hom carburizing agent raw khoom, cov txheej txheem tsim khoom ntawm cov chaw tsim khoom carburizing kuj txawv, muaj cov ntoo carbon, cov thee carbon, coke, graphite, thiab lwm yam.
Cov carburizer zoo feem ntau yog hais txog cov carburizer graphitized, nyob rau hauv qhov kub siab, qhov kev npaj ntawm cov pa roj carbon atoms qhia txog cov qauv me me ntawm graphite.
Kev siv graphitization tuaj yeem txo cov ntsiab lus ntawm cov khoom tsis huv hauv lub carburizer, ua rau cov ntsiab lus carbon ntawm lub carburizer nce ntxiv thiab txo cov ntsiab lus sulfur.
Muaj ntau hom carburizer, thiab qhov zoo ntawm carburizer yog sib xws. Hauv qab no yog txoj hauv kev los paub qhov zoo ntawm carburizer:
1. Cov dej ntsiab lus: Cov dej ntsiab lus ntawm carburizer yuav tsum tsawg li tsawg tau, thiab cov dej ntsiab lus yuav tsum tsawg dua 1%.
2. Cov ntsiab lus tshauv: Cov ntsiab lus tshauv ntawm lub carburizer yuav tsum qis li qis tau. Cov ntsiab lus tshauv ntawm cov roj av calcined coke carburizer qis dua, kwv yees li 0.5 ~ 1%.
3, volatilization: volatilization yog qhov tsis zoo ntawm lub carburizer, volatilization nyob ntawm qhov kub ntawm calcination lossis coke ntawm lub carburizer thiab cov txheej txheem kho, cov carburizer ua tiav volatilization qis dua 0.5%.
4. Cov pa roj carbon uas ruaj khov: Cov pa roj carbon uas ruaj khov ntawm lub carburizer yog qhov tseem ceeb ntawm lub carburizer, qhov siab dua ntawm cov pa roj carbon, qhov zoo dua.
Raws li tus nqi ntsuas carbon ruaj khov ntawm lub carburizer, lub carburizer tuaj yeem faib ua ntau qib, xws li 95%, 98.5%, 99%, thiab lwm yam.
5. Cov ntsiab lus sulfur: Cov ntsiab lus sulfur ntawm carburizer yog ib qho tseem ceeb uas ua rau muaj kev phom sij, thiab qhov qis dua tus nqi, qhov zoo dua. Cov ntsiab lus sulfur ntawm carburizer nyob ntawm cov ntsiab lus sulfur ntawm cov khoom siv raw carburizer thiab qhov kub calcining.
Lub sijhawm tshaj tawm: Lub Kaum Hli-16-2020