Advantages of stainless steel precision castings: surface roughness

Another major advantage of stainless steel precision castings is the high surface roughness.
In order to obtain higher surface roughness of stainless steel precision castings, the following joint points need to be controlled:
①Structural design and process flexible implementation of stainless steel precision castings;
②Processing and manufacturing of wax mold cavity profiling;
③Handle with care in the process of stainless steel precision castings;
④ Selection and quality control of surface refractory materials;
⑤ Optimized control of sand cleaning process.

For stainless steel precision castings with high surface requirements, when the investment mold is pressed for the first time in the manufacturing process, the profiling with higher cavity surface roughness is used.
The dewaxing mold cavity of precision castings of our company is processed by high-speed precision engraving machine tools and precision spark machine clear corner processing.
Mirror polishing ensures the roughness of the profile.
The second shell in the manufacturing process of stainless steel precision castings is hung on the investment mold with a refractory coating made of high temperature resistant special adhesives and refractory materials. The surface of the cavity in direct contact with the molten metal has a high roughness.
The company uses imported high-purity zirconium sand and pure powder to ensure the surface roughness of imported high-purity zirconium sand and pure castings.