Introduction to lost foam castings

1. Castings are accurate in size and shape, with good repeatability, and have the characteristics of precision casting;

2. The surface finish of the casting is high;

3. Lost foam eliminates the sand mold and core making department, and eliminates casting defects and waste products caused by core making and core setting;

4. The out-of-box and no mold-taking greatly simplifies the molding process, and reduces casting defects and waste products caused by mold-taking and closing;

5. The lost foam adopts dry sand modeling with no binder, no moisture, and no additives to eliminate various casting defects and waste products caused by moisture, additives and binders;

6. The lost foam greatly simplifies the sand processing system, the molding sand can be all reused, and the molding sand preparation department and waste sand treatment department are eliminated;

7. Shaving sand is extremely easy, greatly reducing the workload and labor intensity of sand falling;

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

9. The pouring riser of reasonable shape can be set in the ideal position, which is not restricted by traditional factors such as parting and mold taking, and reduces the internal defects of the casting;

10. Lost foam negative pressure pouring is more conducive to filling and feeding of liquid metal, and improves the density of the structure of the casting;

11. Combined pouring, multiple pieces in one box, greatly improving the process yield and production efficiency of castings;

12. Reduce machining allowance and reduce machining cost;