SEMINAR ON:- VOCATIONAL TRAINING AT NCL (A MINI RATNA COMPANY)

PRESENTED BYALOK KUMAR5th SEM, MECHANICAL

BARKATULLAH UNIVERSITY INSTITUTE OF TECHNOLOGY BHOPAL

SUBMITTED TOMr. ABHISHEK JAIN

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Ncl is an environmental friendly company. it is an iso1400104dn certified company.ncl has been awarded 5th TERI AWARD for environmental excellent for the year 2005-06 by honorable president of INDIA. central workshop ,jayant is the part of ncl where I got the training of engine ,machine and welding shop.

introduction

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CONTENTS

• Engine shop• Machine shop• Welding shop

Description about engine shop

Engine shop containing four heavy movers engine of the world

Kamastu Caterpillar DDC Cummins

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Main parts of engine

1. MAIN BEARING2. BIG END BEARING3. CYLINDER TIMER4. PISTON 5. PISTON RING6. GADZET PIN7. SNAP RING8. CONNECTING ROD9. CYLINDER BLOCK10. CRANKSHAFT

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11. GEAR CASE COVER

12. GEAR ACCESSORIES

13. PISTON COOLING NOZZLE

14. FLYWHEEL HOUSING

15. VIBRATION DAMPER

16. FAN PULLEY

17. OIL PUMP

18. REGULATOR

19. SUCTION PIPE AND DELIVERY

PIPE

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Continue………..

20. OIL SUMP

21. INSPECTION PLATE

22. WATER PUMP

23. AIR COMPRESSOR

24. FILTER HEAD

25. OIL FILTER

26. P.T. PUMP

27. START MOTOR

28. CYLINDER HEAD

29. SPRING

30. VALVE GUIDE

31. INJECTOR

32. CROWN HEAD

33. ROCKER HOUSING

34. WATER MANIFOLD

35. CAM FOLLOWER

36. PUSH ROD / TUBE

37. TAPPET COVER

38. OIL COVER

39. INLET MANIFOLD

40. EXHAUST MANIFOLD

41. TURBOCHARGER

41.SUPER CHARGER

42.THERMOSTAT HOUSING

43.RADIATOR 44.AFTER COOLER 45.JUNCTION BOX 46. AIR SUPPLY PIPE

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I. C ENGINE [CUMMINS] NCL

WORKING OF ENGINE

• . IT mainly works on four principle :

1 Intake stroke [suction]

2 Compression stroke[ compression]

3 Power stroke [power]

4 Exhaust stroke [Exhaust]

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FIRING ORDER NCL

The firing order is the sequence of power delivery of each cylinder in a multi-cylinder reciprocating engine. This is achieved by sparking of the spark plugs in a gasoline engine in the correct order, or by the sequence of fuel injection in a Diesel engine.

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Assembling of Engine

1. AFTER WASHING :2. To Attach the liner3. To Measure the bore with bearing4. To Attach the Crank5. To Check the connecting rod by bend test bore6. Again check the bearing and connecting rod7 To connect piston and connecting rod8. To Assemble the piston in the cylinder block with piston ring.9. To Attach the cylinder head.10. To Attach the rocker housing above the cylinder head.11. To Attach the fuel injector above cross head.12. In Rocker housing , Attach the finger.13. In the lower portion of ENGINE, Oil sump and oil pump is attached.14. In front of engine, vibration damper is attached.15. In the back side of engine fly wheel is attached.

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8. To Assemble the piston in the cylinder block with piston ring.

9. To Attach the cylinder head.10. To Attach the rocker housing above the cylinder

head.11. To Attach the fuel injector above cross head.12. In Rocker housing , Attach the finger.13. In the lower portion of ENGINE, Oil sump and oil

pump is attached.14. In front of engine, vibration damper is attached.15. In the back side of engine fly wheel is attached.

Assembling of engine

SYSTEM OF ENGINE NCL

1.Air system

2.Fuel system

3.Cooling system

4.Lubricant system

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MACHINE SHOP

Types of machine subtraction machine addition machine no subtraction no addition machine

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types of milling machine

Horizontal milling machineGang milling machineVertical milling machine

Plano milling machineCNC milling machineSpecial milling machine

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Gear cutting in milling machine

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Types of indexing

Direct indexingSimple compound indexingDifferential indexingAngular indexing

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Submerged arc welding (SAW) is a common arc welding process. Originally devolved by the Linde - Union Carbide Company. It requires a continuously fed consumable solid or tubular (flux cored) electrode

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Gas metal arc welding

Gas metal arc welding (GMAW), sometimes referred to by its subtypes metal inert gas (MIG) welding or metal active gas (MAG) welding, is a semi-automatic or automatic arc welding process in which a continuous and consumable wire electrode and a shielding gas are fed through a welding gun. A constant voltage,direct current power source is most commonly used with GMAW, but constant current systems, as well as alternating current, can be used. There are four primary methods of metal transfer in GMAW, called globular, short-circuiting, spray, and pulsed-spray, each of which has distinct properties and corresponding advantages and limitations.

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COAL HANDING PLANT

receives coal of size of 10” and it has to be crushed to about 25”mm size and the coal is fed to the coal bunker of the coal mill.Overview of coal handling plant clear all doubts about the manufacturing of coal from the coal mines

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Overview of coal handling plant

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conclusion

Hence after training from NCL(central workshop, jayant ) we concludes that it is the very good company of manufacturing of four heavy movers engine of the world and about all parts of machine related to coal manufacturing like dumper ,shovel ,draglines as example heavy voltage motors, transformer ,heavy gears,And all form of transmission of power. one thing know about CWS jayant is the ISO certified company

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Overview of the workshop

Thank You For Your Thank You For Your Attention!Attention!

Questions?Questions?

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