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Ferix Orlando Gultom | 125090807111002 | Fisika | Universitas Brawijaya vii

LAPORAN KULIAH KERJA LAPANGAN

PT. KRAKATAU STEEL (PERSERO)

DIVISI COLD ROLLING MILL

DAFTAR GAMBAR

Gambar 2.1 Alur Proses Produksi Dari Setiap Unit ................................................... 12

Gambar 2.2 Proses Produksi di Pabrik Besi Spons ..................................................... 13

Gambar 2.3 Pellet dan Sponge Iron ............................................................................. 13

Gambar 2.4 Reaktor HYL1 dan HYL2 ....................................................................... 15

Gambar 2.5 Proses Produksi Pabrik Billet Baja ......................................................... 16

Gambar 2.6 Hasil Produksi ........................................................................................... 17

Gambar 2.7 Proses Produksi Pabrik Baja Slab .......................................................... 19

Gambar 2.8 Hasil Produksi Pabrik Baja Slab ............................................................ 19

Gambar 2.9 Proses Produksi Pabrik Baja Lembaran Panas .................................... 22

Gambar 2.10 Hasil Produksi Pabrik Baja Lembaran Panas ..................................... 22

Gambar 2.11 Proses Produksi Pabrik Baja Batang Kawat ....................................... 24

Gambar 2.12 Hasil Produksi Pabrik Baja Batang Kawat ......................................... 26

Gambar 2.13 Proses Produksi Pabrik Baja Lembaran Dingin ................................. 26

Gambar 2.14 Hasil Produksi Pabrik Baja Lembaran Dingin ................................... 27

Gambar 3.1 Pabrik Cold Rolling Mill Tampak Depan .............................................. 33

Gambar 3.1 Struktur Organisasi .................................................................................. 33

Gambar 3.3 Proses Produksi di Cold Rolling Mill ..................................................... 34

Gambar 3.4 Proses Continuous Pickling Line ............................................................ 36

Gambar 3.5 Proses Continuous Tandem Cold Mill .................................................... 37

Gambar 3.6 Proses Electrolytic Cleaning Line ........................................................... 38

Gambar 3.7 Proses Lap Seam Welding ....................................................................... 39

Gambar 3.8 Proses Continuous Annealing Line ......................................................... 42

Gambar 3. 9 Proses Batch Annealing Furnace ........................................................... 43

Gambar 3.10 Proses Temper Pass Mill ........................................................................ 44

Gambar 3.11 Proses Preparation Line ......................................................................... 45

Ferix Orlando Gultom | 125090807111002 | Fisika | Universitas Brawijaya viii




Gambar 3.12 Proses Recoiling Line ............................................................................. 46

Gambar 3.13 Proses Shearing Line .............................................................................. 47

Gambar 4.1 Relay Khusus Pada Bidang Industri ...................................................... 48

Gambar 4.2 Relay Dengan 2 Kontak NO dan NC ...................................................... 48

Gambar 4.3 Diagram Relay Logic ................................................................................ 49

Gambar 4.4 Blog Diagram Fungsi PLC ....................................................................... 50

Gambar 4.5 Input-Output PLC .................................................................................... 50

Gambar 4.6 Tahun 1968-1971 Sistem PLC Awal ....................................................... 51

Gambar 4.7 Tahun 1971-1974 Generasi Pertama Sistem PLC ................................. 52

Gambar 4.8 Tahun 1975-1979 Generasi Kedua (awal) Sistem PLC ......................... 52

Gambar 4.9 Tahun 1980-1984 Generasi Kedua Sistem PLC .................................... 53

Gambar 4.10 Tahun 1985-1989 Generasi Ketiga (awal) Sistem PLC ....................... 53

Gambar 4.11 Tahun 1990-1996 Generasi Ketiga Sistem PLC .................................. 54

Gambar 4.12 Tahun 1997-2005 Compact Sistem PLC ............................................... 54

Gambar 4.13 PLC seri CS ............................................................................................. 55

Gambar 4.14 Komponen-Komponen Dalam CPU ..................................................... 55

Gambar 4.15 Tabel Pengaturan Tombol DIP ............................................................. 57

Gambar 4.16 Kapabilitas CPU Seri CS ....................................................................... 59

Gambar 4.17 Komunikasi Data Pada CPU ................................................................. 59

Gambar 4.18 Rack CPU Seri CS .................................................................................. 60

Gambar 4.19 Input Unit Pada CPU Seri CS ............................................................... 60

Gambar 4.20 Output Unit Pada CPU Seri CS ............................................................ 61

Gambar 4.21 Console ..................................................................................................... 64

Gambar 4.22 Cara Menuliskan Program .................................................................... 67

Gambar 4.23 Aplikasi CX-Programmer ...................................................................... 67

Gambar 4.24 Tampilan Awal CX-Programmer ......................................................... 68

Ferix Orlando Gultom | 125090807111002 | Fisika | Universitas Brawijaya ix




Gambar 4.25 Untuk Memasukkan Jenis PLC Pada CX-Programmer .................... 69

Gambar 4.26 Lembar Kerja Untuk Menulis Program .............................................. 69

Gambar 4.27 SIMOREG DC Master ........................................................................... 71

Gambar 5.1 Backup Roll ............................................................................................... 72

Gambar 5.2 Work Roll .................................................................................................. 72

Gambar 5.3 Sketsa Roll Saat Proses Kerja ................................................................. 73

Gambar 5.4 Motor Carriage ......................................................................................... 74

Gambar 5.5 Motor Carriage ......................................................................................... 74

Gambar 5.6 Grinding Wheel ....................................................................................... 75

Gambar 5.7 Proses Cont. Dan End Indfeed ................................................................ 76

Gambar 5.8 Motor Indfeed ........................................................................................... 76

Gambar 5.9 Motor Crowning ....................................................................................... 77

Gambar 5.10 Motor Ways Oil Pump ........................................................................... 77

Gambar 5.11 Motor Spindle Oil Pump ........................................................................ 78

Gambar 5.12 Motor Headstock dan Footstock Quill ................................................. 79

Gambar 5.13 Motor Coolant Pump ............................................................................. 80

Gambar 5.14 Motor Magnet Separator ....................................................................... 80

Gambar 5.15 Motor Tracer Point ................................................................................ 81

Gambar 5.16 Motor Blower Spindle ............................................................................ 81

Gambar 5.17 Motor Wheel Probe ................................................................................ 82

Gambar 5.18 Alur Sistem Kendali ............................................................................... 83

Gambar 5.19 Blok Diagram PLC ................................................................................. 84

Gambar 5.20 Contoh Work Roll Pada Crowning ....................................................... 85

Gambar 5.21 Wiring Pada Simoreg DC Konverter ................................................... 92

Gambar 5.22 Modul Analog Output PLC ................................................................... 96

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