DISAMATIC is an automatic production line used for fast manufacturing of sand molds for sand casting. This process is commonly used to mass manufacture of metal castings for the automotiveand machine industry.
The basic steps of the lost foam casting process are:
1. Pattern molding
Production of patterns in a precision tool with expendable polystyrene (EPS) beads (Heat expands and bonds the beads to produce a rigid pattern).
2. Cluster assembly
Assembly of the patterns onto a gating system.
3. Coating
Coating the pattern assembly with a refractory wash coat.
4. Sand fill and compaction
Forming the mold by compacting dry sand around the coated pattern in a one piece flask.
5. Casting four
Pouring the metal into the mold with vaporization of the EPS pattern.
6. Shakeout
Shakeout, cut off, finishing, and inspection of the casting.
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