Benang Merah Industri Mineral (tambang), Industri Logam, dan Industri Manufaktur beberapa kasus

Transkripsi

1 Benang Merah Industri Mineral (tambang), Industri Logam, dan Industri Manufaktur beberapa kasus Henry Ako Tampubolon Department Engineering Design and Material (IPM) NTNU Scientific Meeting PPI Trondheim 1

2 Mechanical/Maintenance Engineer Jim Picknell Scientific Meeting PPI Trondheim 2

3 Latar Belakang Industri Tambang Industri Manufaktur Industri Logam Scientific Meeting PPI Trondheim 3

4 INDUSTRI TAMBANG Scientific Meeting PPI Trondheim 4

5 Krisis adalah akibat irrational exuberance Krisis Global adalah wake up call bagi kita semua. Tidak banyak yang menyadari bahwa kita telah lama mengalami irrational exuberance, a heightened state of speculative fervor. Robert Shiller, ekonom terkenal dari Yale mempopulerkan istilah irrational exuberance untuk menyebut pasar saham (tahun 2000) dan pasar rumah (tahun 2007) adalah bubble. Shiller adalah orang pertama yang meramalkan kejatuhan dotcom dan real estate bubble/subprime mortage. Rata-rata harga rumah 6-9 kali > dari rata-rata pendapatan. Harga rumah ketika disesuaikan inflasi hanya menghasilkan return > 1%/tahun Scientific Meeting PPI Trondheim 5

6 Harga Nikel Scientific Meeting PPI Trondheim 7

7 Peta Pertambangan PT Antam Scientific Meeting PPI Trondheim 10

8 Pengembangan Tambang PT Antam Tbk Sumber: PT Antam Tbk Scientific Meeting PPI Trondheim 11

9 Daerah Tambah INCO Scientific Meeting PPI Trondheim 12

10 Daerah Tambang 1 Scientific Meeting PPI Trondheim 13

11 Daerah Tambang 2 Scientific Meeting PPI Trondheim 14

12 Kondisi Geology Scientific Meeting PPI Trondheim 15

13 Schematic Flow-Sheet of PT INCO EB Mine Hi Recovery Low Olivine parent Dry Dust WB Mine Low Recovery High Olivine parent Separate Wet O re Stockpile LiquidSulphur Hot Calcine (700 C) HSFO Air HSFO Air West Block (Reject) Dryer Kiln Reduction Kiln Rock DKP Ea s t Bl ock (C rushe d) M.C ESP Dried Ore S torage Stack E.L E.L E.L Scrubber M.C ES P 500 T BIN 100 T BIN Slag to Disposal area (1500 C) Dry Dust Electric Furnace Furnace Matte (1350 C) THICKENER Slurry Pug mill Dust Silica Flux Scrap Air Fluid Bed Drier Oversize (Recycle to Converter) Recycle to Dryer Converter Matte Cast W a ter (Hi pressu re ) Granulated Matte Diesel Air Gr anulation Packing Market Scientific Meeting PPI Trondheim 16

14 Strategi Pengembangan Nikel Scientific Meeting PPI Trondheim 17

15 INDUSTRI LOGAM Scientific Meeting PPI Trondheim 18

16 Hydro Alumunium Norway Scientific Meeting PPI Trondheim 19

17 Apa projectnya si Henry Ako Tampubolon? Scientific Meeting PPI Trondheim 20

18 With rolling and extrusion as largest process routes, forming is vital to aluminium applications Rolling: break down tandem casting - homogenizing - hot rolling - cold rolling- annealing - forming Extrusion: Melt treatment Casting Homogenizing Billet preheating Extrusion Cooling Stretching Cutting Storing FORMING Ageing User Recycling Scientific Meeting PPI Trondheim 26

19 INDUSTRI MANUFAKTUR GM Fab. Plant Daimler-Chrysler General Motor HQ Scientific Meeting PPI Trondheim 28

20 Expected Use of High-Strength Steels C-Class of Mercedes-Benz Material Consumption 100 % 80 % 60 % 40 % 20 % 0 % 3 % 1 % 34 % 62 % Actual C-Class 9 % 29 % 36 % 24 % Future High-Strength Steels (more than 1000 MPa) High-Strength Steels ( MPa) High-Strength Steels ( MPa) Mild Steels (up to 300 MPa) Scientific Meeting PPI Trondheim 29

21 Industri Automotive Small deformation in large areas Typical deep drawn parts Large bending deformation Scientific Meeting PPI Trondheim 30

22 Bidang Riset Plasticity Scientific Meeting PPI Trondheim 35

23 Constitutive model Anisotropy/ texture Yield surface Disloc. density/ ageing Isotropic hardening dσ = C:dε Deform. induced anisotropy Kinematic hardening Flow rule Viscous stress Damage Plastic slip (Schmid s law) Rate effects/ PLC-effect Microvoids/ microcracks Scientific Meeting PPI Trondheim 36

24 Scientific Meeting PPI Trondheim 37

25 TERIMA KASIH Scientific Meeting PPI Trondheim 38