Countermeasures for surface roughness defects in lost-wax casting

Measures Against Surface Roughness Defects in Lost-Wax Casting
【What are the causes of surface roughness defects (Rough surface)?】
"Rough surface" (surface roughness defects) in lost-wax casting is a significant issue that negatively impacts product appearance and function.
Main causes:
- Roughness of the wax pattern surface or air bubble inclusion
- Uneven particle size of the investment slurry
- Adhesion of foreign matter or air bubbles to the mold surface
- Rapid temperature changes during dewaxing and firing
- Oxides and inclusions in the molten metal
【KOBAYASHI CASTING's Countermeasures and Post-processing Support】
At KOBAYASHI CASTING, we implement the following countermeasures against surface roughness defects in lost-wax casting:
- Optimizing temperature, pressure, and cooling control of the wax injection machine to form smooth-surfaced wax patterns
- Performing uniform coating with high-quality ceramic material and stable slurry viscosity
- Strict management of temperature profiles using automatic dewaxing equipment (autoclave) and electric firing furnaces
- Preventing contamination by foreign matter such as oxides, slag, ceramic fragments, and dust through stable melting using high-frequency and medium-frequency furnaces
- In-house surface finishing capabilities including shot blasting and machining (CNC cutting) after casting
【Reasons Why We Are Chosen】
- Integrated support for precision lost-wax casting and post-processing
- Strict process management to prevent surface defects
- Compliance with global standards through ISO9001 and PED certification
Integrated Support for High-Quality Lost-Wax Casting and Post-processing at Our Vietnam Factory
KOBAYASHI CASTING provides integrated support from lost-wax casting to surface treatment and CNC post-processing. We prevent surface defects and can handle mass production of medical and industrial components with stable quality.
Companies facing quality challenges in lost-wax casting are encouraged to consult with our Vietnam facility.