Molding Tools

1. Rawhide mallet:

It is a mallet to loosen the pattern in the mould by striking slightly, so that it can be withdrawn without damaging the mould.

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2. Gate cutter:

It is a metal piece to the gate the opening that connects tee sprue with the mould cavity.

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3. Rapping plate (or) Lifting plate:

It is used to facilitate shaking and lifting large pattern from the mold.

01-lifting tool-rapping tool-shaking or lifting large pattern

4. Spirit level:

It is used to check that the sand bed, moulding box or table of moulding machine is horizontal.

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5. Clamps:

Clamps are used to hold the cope and drag of the complete mould together so that the cope may not float or rise when the molten metal is poured into the mould.

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6. Gaggers (or) Lifters:

These are iron rods bent at one or both ends. These are used to reinforce the moulding sand in the top portion of the moulding box and for supporting hanging sand.

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7. Moulding box:

Sand moulds are prepared specially constructed boxes called the moulding boxes or flasks. The function and construction of a molding box have already been described.

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8. Moulding flasks:

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1. Snap flask

2. Tapered slip flask

3. Box flask (or) Tight flask

4. Wooden flask

Moulding Tools

Moulding Tools:

1. Shovel:

It is just like rectangular pan fitted with a handle. It is used for mixing the moulding sand and for moving it from one place to the other.

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2. Riddle:

It is used for removing foreign materials like nails, shot metal splinters of wood etc from the moulding sand.

01-riddle-sieve

3. Rammer:

It is a wooden tool used for ramming or packing the sand in the mould. Rammers are made in different shapes.

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4. Strike-off bar:

It is a cast iron or wrought iron bar with a true straight edge. It is used to remove the surplus sand from the mould after the ramming has been completed.

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5. Vent wire:

It is a mild steel wire used for making vents or openings in the mould.

01-vent wire-molding tool

6. Lifter:

It is a metal piece used for patching deep section of the mould and removing loose sand from pockets of the mould.

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7. Slick:

Different types of slicks are used for repairing and finishing moulds.

8. Trowel:

It contains of a flat and thick metal sheet with upwards projected handle at one end. It is used for making joints and finishing flat surface of a mould.

9. Swab:

It is made of flax or hemp. It is used for applying water to the mould around the edge of the pattern.

10. Draw spike:

It is a metal rod with a pointed or screwed end. It is used for removing the pattern from the mould.

01-lifting plate-rapping plate