19 Properties of the charcoals as materials to add carbon to melted pig iron for castings 1080041 20 3 21
1 3 2 4 2-1. 2-2. 2-3. 2-4. 2-5. 3 8 3-1. 3-2. 3-3. 3-4. 3-5. 4 19 2
1 CO2 10 3
2 2-1. 1cm Photo.1 Thermo Electron PASCAL 140 Photo.2 Photo.1 Photo.2 4
2-2. Photo.3 NOVA 1200 Photo.4 300 BET3 Photo.3 Photo.4 5
2-3. TG-DTA2000 Photo.5 10 /min 1000 3 10 /min 1000 1 Photo.5 6
2-4. 2-2 X ( X pert Pro Photo.6) Photo.6 X 2-5. 5mm 5mm SEM JEOL JSM5800LV Photo.7) Photo.7 7
3 3-1. Table 1 Table 1. g/cm3) 1.65 1.13 0.54 0.45 AD 1.40 Table 1 8
3-2. Table 2 Table 2. m 2 /g 3.62 12.86 7.15 16.21 0.83 Table 2 AD AD AD 3-3. - Table 3 Table 4 Table 3. Table 4. (%) (%) 6.18 8.81 26.43 19.29 AD 10.23 10.11 1.85 1.39 1.19 AD 7.41 9
Table 5. 466.7 377.9 324.3 255.2 AD 486.4 Table 3 Table 4 Table 5 10
3-4. X Fig.1 Fig.2 11
Fig.3 Fig.4 12
Fig.5 AD AD CaCO3 TG Fig.6 13
Fig.6 (TG ) 1000 CaCO3 750 850 CaCO3 CO2 CaO Fig.6 700 850 CaCO3 CO2 Table 5 CaCO3 14
3-5. SEM Photo 8. SEM Photo 9. AD SEM 15
Photo 10. SEM Photo 11. SEM 16
Photo 12. SEM AD X CaCO3 17
Photo 13. Photo 13. CaCO3 EDS( X JED-2140) Ca O Photo 14. EDS 18
EDS Ca O C CaCO3 19
4 CaCO3 CaCO3 CaCO3 C 20
1 21