The resulting solder build-up makes the parts resist ejection, contributing to part, core, and ejector pin damage. Corrosion and oxidation resistance. High thermal conductivity to dissipate heat from the interface quickly. Thermal properties compatible with the substrate to minimize interface stresses. Compatibility between the coating and substrate.
Low surface wear.
Then, we decided if a particular core pin was fit to use in production again. After completing coating performance evaluation during actual production, Brennan deduced some good general information about the coatings as tested against his application. Testing revealed that coatings not only decreased core breakage, they decreased the amount of polishing required to remove solder buildup. And, according to visual observations, the chrome carbide coated core performed the best with the least amount of visible soldering. As a company, we are looking into extending die life even further in the future using multi-layer coatings.