Moulding Procedure

Moulding Procedure Points : Moulding Procedure, Give brief description of all the steps, involved in hand moulding

1. Assemble pattern and place cope over the drag.
2. Withdraw pattern, clean mould cavity and put gate in the drag.
3. Reassemble and clamp mould to make it ready for pouring.
4. Three box moulding. If the pattern is of flanged type it will be inconvenient to prepare the mould in two boxes.
5. Place core in position.
6. Keep spree-pin and riser pin in position, fill sand in the cope and ram.
7. Roll over drag on the board.
8. Place drag and pattern on the moulding board and ram sand in drag.
9. Vent mould, remove sprue and riser pins and part off mould.