The automotive industry faces a multitude of challenges, ranging from consumer-driven price and reliability expectations to increasingly stringent environmental and efficiency requirements. Gauss continuously refines its existing product performance and innovates to meet new customer demands, serving this rapidly evolving industry. 
Engine and transmission systems involve a variety of critical, high-speed rotating components that operate in high-temperature corrosive environments. Toughness, surface wear resistance, and excellent fatigue strength are essential qualities. To guarantee quality, a high level of execution within the quality management system is crucial.
Automotive Industry
Carbon potential control based on the special process CQI-9 system
CQI-9, as one of the earliest heat treatment system assessment systems in the industry, has specific regulations on the control of controllable atmosphere carbon potential. Sections 3.7 and 3.8 of the third edition of CQI-9 clearly outline the requirements for carbon potential control, monitoring, recording, and calibration. 
Firstly, the carbon potential/dew point (CO2) of the atmosphere in the atmosphere generator (RX generator) and heat treatment furnace should be continuously monitored and automatically controlled, with records generated. The recorded carbon potential should be controlled within ±0.05 of the set value.
Secondly, there should also be backup methods for carbon potential/ (CO2) verification, such as hot wire resistance, portable gas analyzers, thin-film carbon determination, and carbon rods.
Finally, the carbon potential of the main furnace atmosphere should be verified daily through backup methods, i.e., carbon potential calibration. 
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