Main advantages of lost foam casting

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  1. Lost foam castings have accurate size and shape, good repeatability and the characteristics of precision casting;
  2. The surface finish of lost foam castings is high;
  3. The sand core and core making department were cancelled, and the defects and wastes of lost foam casting caused by core making and lower core were eradicated;
  4. The molding process is greatly simplified and the defects and wastes of lost foam casting caused by mold taking and box closing are eliminated;
  5. Adopt dry sand molding without binder, moisture and any additives to eliminate various lost foam casting defects and wastes caused by moisture, additives and binder;
  6. The sand treatment system is greatly simplified, all molding sand can be reused, and the molding sand preparation department and waste sand treatment department are cancelled;
  7. Sand falling is extremely easy, which greatly reduces the workload and labor intensity of sand falling;
  8. Lost foam castings are free of flash and burr, which reduces the cleaning and grinding workload by more than 50%;
  9. The pouring and riser with reasonable shape can be set at the ideal position, which is not restricted by traditional factors such as parting and mold taking, so as to reduce the internal defects of lost foam castings;
  10. Negative pressure pouring is more conducive to the filling and feeding of liquid metal, and improves the tissue density of lost foam castings;
  11. Combined pouring, one box with many pieces, greatly improves the process yield and production efficiency of lost foam castings;
  12. Reduce the machining allowance and machining cost;
  13. It is easy to realize mechanized automatic assembly line production, and the production line is flexible. It can realize the production of lost foam castings of different alloys, shapes and sizes in one production line;
  14. Draft angle can be cancelled;
  15. The service life of the metal mold used can reach more than 100000 times, reducing the maintenance cost of the mold;
  16. Reduce dust, smoke and noise pollution, greatly improve the working environment of lost foam casting workers and reduce the labor intensity. The industry dominated by male workers can become an industry dominated by female workers;
  1. Simplify the process operation and greatly reduce the requirements for the technical proficiency of workers;
  2. The shape of the parts is not limited by the traditional lost foam casting process, which liberates the mechanical designers, so that they can freely design the most ideal shape of the lost foam casting according to the service performance of the parts;
  3. The weight of the casting can be reduced;
  4. Reduce the production cost;
  5. The factory design is simplified, the investment in fixed assets can be reduced by 30-40%, the floor area and building area can be reduced by 30-50%, and the power consumption can be reduced by 10-20%;
  6. Lost foam casting process is widely used, which is not only suitable for cast steel and cast iron, but also suitable for cast copper, cast aluminum, etc;
  7. Lost foam casting process is not only suitable for castings with simple geometry, but also suitable for castings with multiple open edges, multiple cores and complex geometry that are difficult to start in ordinary casting;
  8. Lost foam casting process can realize pouring under microseismic state, promote the formation of metallographic structure with special requirements, and improve the internal quality of lost foam castings;
  9. Combined pouring in dry sand, easy desanding and synchronous temperature, so waste heat can be used for heat treatment. In particular, the water edge treatment of high manganese steel castings and the solid solution treatment of heat-resistant steel castings have very ideal results, which can save a lot of energy and shorten the processing cycle;
  10. Using the lost foam casting process, castings of any size can be completed according to the melting capacity.
  11. Lost foam casting is suitable for group casting. It is easy to remove sand in dry sand buried mold. Waste heat treatment can also be carried out for lost foam castings of some materials according to their uses.
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