Here are the key steps involved in the steel investment casting process:
Wax Pattern Creation:
Injection Molding: Create wax patterns by injecting molten wax into molds.
Pattern Assembly: Assemble wax patterns for the next casting stages.
Shell Building:
Coating: Apply ceramic coatings to the wax assembly.
Drying: Thoroughly dry the coated pattern.
Stuccoing: Reinforce the assembly with stucco material.
Dewaxing:
Autoclave: Subject the wax-coated assembly to high temperatures and pressure for dewaxing.
Flash Fire: Eliminate remaining wax residues through a flash fire process.
Pouring:
Melting: Melt selected steel in a furnace.
Pouring: Pour molten steel into the prepared shell, taking the shape of the wax pattern.
Cooling and Solidification:
Allow the poured steel to cool and solidify within the shell.
Shell Removal and Finishing:
Remove the ceramic shell after solidification.
Perform finishing processes on the raw casting for the final product.
Overall, the steel investment casting process is valued for producing intricate, precise metal parts with a smooth surface finish, particularly suitable for small to medium-sized production runs.