Coating specialist Balzers Ltd has introduced a coating which it claims meets the seemingly contradictory automotive demands of higher performance, lower emissions and better fuel economy.
The BALlNITC coating is said to improve the efficiency of engines by minimising friction and increasing the load-bearing capacity and wear resistance of components. BALINITC is an amorphous carbon coating (WC/C) applied in a physical vapour deposition (PVD) process at temperatures around 200°C. Since the coating process takes place in a high vacuum, the properties of the coating are substantially better than those attainable by other methods.
The coating enhances the performance of small engine components such as gudgeon pins to improve the overall economic efficiency of the engine. Gudgeon pins have traditionally been used in conjunction with bronze bushing.
Unfortunately, the greater surface contact pressure created by modern engine ignitions often deforms these bushes. Gudgeon pins protected with BALINITC can operate without bushings as the coating eliminates replacement of deformed bushings and improves the system’s load-bearing capacity by adding stability whilst reducing weight.
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