Teknologi Besi Baja

Teknologi Besi BajaMateri ke 2 TBB semester genap 2014-2015Proses Pembuatan Baja Blast Furnace

Teknologi Besi BajaTeknologi ConverterPneumatic process : Bassemer Process, Thomas Process.Oxygen Blown Process :Basic Oxygen Process (BOF), Stora Kaldo Process, Rotor ProcessDimiliki : Thyssen Stahl, Nippon Steel Corp, NKK, Posco Korea, dllTeknologi Electric Arc Furnace (EAF)Conventional EAFAdvanced EAF ( EAF yang dikembangkan spt DanaArc)Dimiliki : PT.Krakatau Steel, Posco Korea, Hylsa dll.Teknologi Pemurnian Sekunder1. Rinsing Stand Process 2 .Laddle Furnace3. RH-Vacuum Degasser4. AOD (Argon Oxygen Decarburization Process) 5.VOD (Vacuum Oxigen Decarburization )Teknologi Besi BajaJenis TeknologiBessemerThomasLaddle BOFRotor KaldoEAF dan sejenisnya1.Bentuk DapurConverter tegakConverter TegakConverter TegakConverter miring/rebahEAF2. Jenis Proses dan RefraktoriesAsamBasaBasaBasabasa3.Jenis OksidatorUdaraUdaraOksigenOksigenOksigen4. Bahan Baku UtamaCairCairCairCairPadat5. EnergiAutogeneousAutogeneousAutogeneousAutogeneousListrik6. Defosforisasi dan DesulfurisasiTidak bisaBisaBisaBisaRelatif BisaSPESIFIKASI PRODUK BAJA PT KRAKATAU STEEL

Blast Furnace

Blast Furnace

Blast Furnace

PROSES UTAMA PEMBUATAN BESI BAJA :PROSES KONVENSIONAL & NON KONVENSIONAL

Bagan Alir Proses Produksi PT Krakatau Steel Proses Non Konvensional : Reduksi Langsung- EAF- RollingBIJI BESIBESI SPONSGAS ALAMREDUKSI BESISLABBESI TUABAJA CAIRBILLETPELEBURAN & PENGECORANPENGEROLANDAPUR LISTRIKMESIN TUANG KONTINYUREAKTORMESIN ROLMESIN ROLPELATCOIL HOT ROLLEDBATANG KAWAT SteamReformerMESIN ROLCOIL COLD ROLLEDPRODUCTION LINES OVERVIEW

Direct ReductionSteel makingHot RollingPipe maker

11This slide illustrates our production line.PT Krakatau Steel is the only integrated steel company in Indonesia. The production fasilities in the upstream processes are based on the usage of origin iron ore pellets which is reduced through the Direct Reduction plant.it guarantees the high quality steel products. The annual capacity is 2,6 million ton crude steel.

ALIRAN PRODUK PT KRAKATAU STEELHot Strip CoilBillet SteelWire RodCold Roll C/SHot Strip Sheet

Slab Steel

Steel MakingSpongePellet

PABRIK BESI SPONS HYL-I

DIVISI PABRIK BESI SPONSPT. KRAKATAU STEEL

PROSES REDUKSI LANGSUNG HYL III

CO2 REMOVAL

PABRIK BESI SPONS HYL III PT KRAKATAU STEEL CILEGONINCOMING FEED CONVEYOR2 SHAFT REACTOR HYL IIIGAS HEATERCO2 ABSORBERDIRECT REDUCTION PLANT HYL III PT KS

PROSES REDUKSI LANGSUNG DI PABRIK BESI SPONS HYL III PT KRAKATAU STEEL CILEGON

2 SHAFT REACTOR HYL IIIGAS HEATERCOOLING TOWERCO2 ABSORBER

HOME HYL-I PLUSDIAGRAM KESETIMBANGAN KIMIA REDUKSI BIJIH BESI DENGAN CO

STCMTEMP.SENSORsTRANSPORTASI IRON ORE PELLET DARI PELABUHAN CIGADING KE STOCK YARD MELALUI BELT CONVEYOR

STOCK YARD

MATERIAL HANDLING PRODUK DRI

Diagram Fasa Besi Baja

PROSES PEMBUATAN BAJA NON KONVENSIONAL - EAF

STEEL SLAB PLANT II PT KS

GAMBARAN KONDISI JENIS SCRAP SAAT INI

Light scrapSkullPig IronLoading scrap di Bucket di scrap yard BSPHome scrap28

PROSES PELEBURAN BAJA NON KONVENSIONAL - EAF

SLAB CASTERMachine type: curve mouldLadle Capacity: 130 tonTundish Capacity: 16 tonMachine Radius: 9.8 mMachine Length: 19.2 mMould length: 700 mmSlab thickness: 200 mmSlab width: 940 2080 mmMould level control: Radioactive level control

PROSES PELEBURAN BAJA NON KONVENSIONAL : SUMBER LISTRIK AC &DC AC-EAF & DC- EAF

PROSES HOT ROLLING MILL

SPESIFIKASI PRODUK BAJA PT KRAKATAU STEEL

SPESIFIKASI PRODUK BAJA PT KRAKATAU STEEL

APLIKASI PRODUK HRC UNTUK PIPA GAS,PIPA AIR

APLIKASI HRC UTK TABUNG GAS, BOILER, PRESSURE VESSEL

APLIKASI HRC UNTUK AUTOMOTIVE DAN KONSTRUKSI KAPAL

APLIKASI PRODUK COLD ROLLED STEEL

APLIKASI COLD ROLLED STEEL UNTUK ENAMEL &AUTOMOTIVE

APLIKASI PRODUK WIRE ROD UNTUK BOLTS, NUT,PAKU

Bagan137097400935008072.2472.432641260355150

Bagan497370934008050072.472.2464326012553501

TEMPERATUR 0C% H2DIAGRAM KESETIMBANGAN KIMIA REDUKSI BIJIH BESI DENGAN H2

Bagan4 (2)422404540050505543642871187610785

TEMPERATUR 0C% CODIAGRAM KESETIMBANGAN KIMIA PRODUKSI BIJIH BESI DENGAN CO

Lembar19837037085400400785005007357057020037097400400936005008080057072.472.24100080064321200100060121400120055316001400501240424004552550506005543800642810007118120076101400785

Lembar2

Lembar3

Bagan137097400935008072.2472.432641260355150

Bagan497370934008050072.472.2464326012553501

TEMPERATUR 0C% H2DIAGRAM KESETIMBANGAN KIMIA PRODUKSI BIJIH BESI DENGAN H2

Bagan4 (2)422404540050505543642871187610785

TEMPERATUR 0C% CO

Lembar19837037085400400785005007357057020037097400400936005008080057072.472.24100080064321200100060121400120055316001400501240424004552550506005543800642810007118120076101400785

Lembar2

Lembar3

ASIZE & APPLICATIONPRODUCTSIZE SPECIFICATIONMAJOR APPLICATIONHRC/PThickness 1.8 to 25 mmAutomotiveShip BuildWidth 600 to 2080 mmConstr. & Fab.ContainersPipe & TubeCRC/SThickness 0.18 to 3.0 mmApplianceTin PlateWidth 500 to 1250 mmAutomotiveEnamelDrumPipeGalvalumWire RodDiameter 5.5 to 20 mmNailElectrodaBendradBold & NutWiremeshSpring BedShafting Bar