What is the most advanced casting method?
5. greatly simplifies the sand processing system, sand can be used repeatedly, canceled sand preparation industry and waste sand preparation; 6. sand is extremely easy, greatly reducing the workload and labor intensity of sand; 7. castings without burr, make up The grinding workload is less than 50%; the riser 8. can be set reasonable shape in the ideal position, not restricted by the type, modulus and other traditional factors, reduce the internal defects of castings; 9. vacuum casting, more conducive to the filling of liquid metal and feeding, improves the casting microstructure density; 10. composite casting and many boxes, greatly improving the casting process of the export rate and production efficiency;
The disappearance of casting technological advantages are as follows: 1. dimensional shape accurate copy is good, has the characteristics of precision casting; the surface finish of the castings is high; 2. abolished the sand core and core ministry, eradicates the casting defects and waste system core, core caused; 3., do not take the box die, which greatly simplifies the modeling process, due to the elimination of the casting defects and waste from mold, caused by the box; 4. no binder, no water, no additives, dry sand molding, the eradication of the water, because of all kinds of additives and binder caused by the casting defects and waste;
EPC casting process is one of the world's most advanced, is known as a revolution in the history of the casting, twenty-first Century is "green intensive casting is the main way, will play an increasingly important role in foundry production, EPC casting or negative compaction (EPC). Is the use of expandable polystyrene (EPS) foam as raw materials, according to the volume of effective and reasonable combination of sand box model beam, special paint coating, after drying with water, binder and other additives in negative pressure dry sand sand box casting method, the casting metal liquid in proper vacuum tight microquake after the finish, prepared by the method of casting surface precision, has no burr etc..
