EPC has the following economic advantages:

Improve casting quality and reduce scrap rate

1. The casting has accurate size and shape, good repeatability, and has the characteristics of precision casting;

2. High surface finish of castings;

3. The sand core and core making department were canceled, and the casting defects and waste products caused by core making and core lowering were eradicated;

4. The molding process is greatly simplified and the casting defects and waste products caused by mold taking and box closing are eliminated;

5. Adopt dry sand molding without binder, moisture, and any additives to eradicate various casting defects and wastes caused by moisture, additives, and adhesives;

6. 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 making, and reduces the internal defects of castings;

7. Negative pressure pouring is more conducive to the filling and feeding of liquid metal, and improves the tissue density of castings;

8. It is easy to realize mechanized automatic assembly line production, and the production line is flexible, which can realize the production of castings of different alloys, shapes, and sizes in one production line;

9. Draft angle can be canceled;

Reduce production costs

1. It can reduce the weight of castings;

2. Reduce the production cost;

3. EPC process can realize pouring under a microseismic state, promote the formation of a metallographic structure with special requirements, and improve the internal quality of castings;

4. Combined pouring in dry sand, desanding is easy and the temperature is synchronous, 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;

Reduce resource costs

1. Sanding is extremely easy, which greatly reduces the workload and labor intensity of sanding;

2. The casting has no flash and burr, which reduces the cleaning and grinding workload by more than 50%;

3. Combined pouring, more than one box, greatly improving the process yield and production efficiency of castings;

4. The service life of the metal mold used can reach more than 100000 times, reducing the maintenance cost of the mold;

5. Reduce dust, smoke, and noise pollution, greatly improve the working environment of foundry workers, reduce labor intensity, and the industry dominated by male workers can become an industry dominated by female workers;

6. Simplify the process operation and greatly reduce the requirements for workers' technical proficiency;

Widely used

1. The shape of the parts is not limited by the traditional casting process, which liberates the mechanical designers so that they can freely design the most ideal casting shape according to the service performance of the parts;

2. The lost foam casting process is widely used, not only for cast steel and cast iron but also for cast copper, cast aluminum, etc;

3. The lost foam casting process is not only suitable for castings with simple geometry but also suitable for castings with multiple edges, cores, and complex geometry that are difficult to be used in ordinary casting;

4. Using the lost foam casting process, castings of any size can be completed according to the melting capacity; 5. Lost foam casting is suitable for group casting, and dry sand is easy to decide in the buried mold. In some castings, waste heat treatment can also be carried out according to the purpose.

Shortcomings

It should be noted that nothing is perfect, and EPC also has shortcomings. The main problem is that the foaming slag is not easy to be discharged during the production of thick castings, resulting in the use of interrupted cracks and other phenomena; The production of low carbon alloy steel castings is easy to increase carbon, which brings trouble to smelting and heat treatment.

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