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FOUNDRY WORK (2)

V. Ryan © 2003 - 2009

 

The drag is then packed with more casting sand. It is a good idea to sieve all the sand being placed above the pattern and then ram it down firmly using a ramming tool. The tool has two ends, one is cylindrical and is used for general packing down of the sand. The other end is quite pointed and this can be used for packing sand close up to the pattern.

When the drag is packed fully it is levelled off (called ‘strickled off’) using a straight steel bar.

 

   

 

   
The entire drag and its contents are then turned over so that the base of the pattern can be seen.

   

A top box called a ‘cope’ is then placed on top of the drag and locating pins are put in position so that the casting boxes cannot move sideways.

   

   
 
   

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