Advantages of using resin sand casting machine bed castings

1. Resin sand mold has good rigidity, and during the initial pouring stage, the sand mold utilizes the graphite expansion and shrinkage defects caused by the solidification process of cast iron to achieve low riser and no riser casting of gray cast iron and ductile iron parts.

In the production of solid casting, polystyrene foam is used for shaping with self hardening sand using epoxy resin. When the molten metal is poured into the mold, the foam plastic pattern will vaporize under the action of the high-temperature molten metal, burn and disappear, and the molten metal will replace the position occupied by the original foam plastic, and will be cooled and solidified into a full mold casting with the same shape as the pattern.

Relatively speaking, lost foam casting has great advantages over traditional sand molds for producing single or small batches of automotive coverings, machine tool beds, and other large molds. It not only saves expensive wood mold costs, but also is easy to operate, shortens production cycles, improves production efficiency, and has advantages such as small size, small machining allowance, and good surface quality.