Technology / product information

Challenges and Causes of Contamination
Foreign material contamination in lost-wax casting is a major cause of defects and issues in post-processing. It happens when unwanted particles or residue get trapped inside or on the surface of the cast part.

Main causes include:
- Impurities introduced during metal melting
- Residual matter inside the mold
- Incomplete removal of wax or investment material

KOBAYASHI CASTING’s Countermeasures and Process Management
KOBAYASHI CASTING addresses foreign matter inclusion through the following technologies and processes:
- Complete removal of wax residues using automatic dewaxing equipment (autoclaves)
- Stable melting with medium and high-frequency induction furnaces to suppress impurity formation
- Thorough elimination of moisture and foreign matter residues via strict mold drying and heating management
- Verification of material purity in every lot using metal composition analyzers
- A quality management system compliant with ISO9001:2015 and PED certification

Benefits: Improved Quality and Reliability
These measures enable KOBAYASHI CASTING to provide high-quality lost-wax casting products trusted for medical, mechanical, and semiconductor applications. By reducing rework and scrap loss caused by contamination, and improving yield in downstream processes, we significantly cut quality-related costs for our clients.

Why Choose Us
- End-to-end system specializing in lost-wax casting
- Analytical equipment and expertise ensuring material purity
- Proven mass production capacity: 300 tons annually, with 90% for export
KOBAYASHI CASTING takes contamination issues in lost-wax casting seriously, optimizing equipment, processes, and quality management in an integrated manner.
Our Vietnam factory is equipped with the latest dewaxing systems and composition analyzers, and is certified under ISO9001 and PED. With stable quality, we have earned the trust of Japanese and Western clients alike.

If your company faces contamination challenges in lost-wax casting, please consult with us.