1. Batch size of castings: The larger the batch size, the more significant the economic benefits.
2. Cleaning out: there is no chemical binder in the molding sand, and the foam plastic is harmless to the environment at low temperature, and the recovery rate of used sand is more than 95%.
3. High casting accuracy: Cast iron parts are a new process with almost no allowance and forming, which does not require mold taking, parting surface, or sand core. Therefore, the castings have no flash, burrs, and draft angle, and reduce dimensional errors caused by core combinations.
4. The process of cast iron castings, like other forging processes, has its drawbacks and limitations. Not all castings are suitable for production using the lost foam process, and a detailed analysis is required.
5. Casting structure: The more complex the casting structure is, the better it reflects the superiority and economic benefits of the casting process. For situations where there are narrow internal channels and interlayers in the structure, it is necessary to improve the predecessors before adopting the lost foam casting process
6. Reduce investment and production costs, reduce the weight of casting blanks, and have a small machining allowance. Highly complex castings can be forged by combination of foam plastic dies.
7. Casting material: The order of good or bad applicability is roughly as follows: gray cast iron - non ferrous alloy - ordinary carbon steel - ductile iron - low-carbon steel and alloy steel; Make necessary preparations to avoid excessively long process experiments and debugging cycles.
8. Casting size: Mainly considering the range of use of the corresponding equipment (such as vibration table and sand box).