Casting
Sand Casting
Minimise sand use
Reduce sand to liquid metal ratios by:
- Using shaped boxes that follow casting contours more
closely
- Blocking in corners to reduce the amount of sand required to
fill a box.
Control sand mixing
Waste sand is the most significant waste from many foundries.
Control sand mixing by ensuring that mixer types/capacities equate
with mixed sand demand.
Reduce waste sand
Maximise reclamation using primary and secondary techniques.
Maximise the proportion of reclaimed sand in the sand mix and
ensure the hopper capacity is sufficient.
Die Casting
Control Casting Variability
Reducing variability of the casting weight will allow you to
improve quality and reduce average fill, thus improving metal
yield.
Standardise die design
If several dies are in use for the same design, then measure the
metal yield for each. If one is better, standardise on this for any
future dies.