JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objective

This lab course is mainly designed to provide hands on practice on the

various foundry testing methods for evaluation of moulding sand properties

Course Outcome

Upon successful completion of this course, the student will be able to:

• 1. Determine moulding sand dry, hot and green strength
• 2. Understand the preparation of moulding sand
• 3. Determine moulding sand properties by varying additives
• 4. Understand the Melting of Al alloys

LIST OF EXPERIMENTS

• 1. Preparation of gating system using green moulding sand.
• 2. Study of particle size distribution of the sand.
• 3. Study of the variation of permeability of the green sand with clay and water.
• 4. Determination of the variation of sand properties like green hardness, green compact strength with additives in sands.
• 5. Determination of the variation of hot compact hardness and hot shear strength with additives in sands.
• 6. Determination of clay content in sand.
• 7. Determination of the shatter index of green sand.
• 8. Melting of Al alloys in a pit furnace and casting into light components.
• 9. Study of Charge calculations and melting practice of cast iron in cupola.
• 10. Preparation of a shell-by-shell moulding process.
• 11. Study of Non-destructive testing of few components. EQUIPMENT
• 1. Mould Boxes, Patterns, Core
• 2. Rotap Sieve Shaker with Sieves Boxes, Tool Boxes.
• 4. Universal Sand Testing Machine
• 3. Permeability Apparatus. with Accessories.
• 5. Sand Hardness tester. 6. Clay Content Apparatus
• 8. For Melting; Pit Furnace; Electric
• 7. Shatter Index test. Furnace
• 9. Shell Moulding Machine 10. Centrifugal Casting Machine
• 12. Ladles, Crucibles and other
• 11. Ultra Sonic Tester Accessories
• 13. Muffle Furnace 10000C R16 B.TECH METALLURGY AND MATERIALS ENGG.