氧探头在可控气氛加热炉碳势控制系统的作用机理及其应用

着重介绍了碳势控制原理，并在此原理基础上阐述了氧探头的作用机理，运用氧探头精确控制碳势对A、B、C三种试样进行试验，结果表明，A试样硬化层大大超标，B、C试样效果很好，实践证明，在渗碳淬火工艺中，运用氧探头碳势控制系统，提高了渗碳质量，缩短了工艺时间。

THE MECHANISM AND APPLICATION OF CARBON PROBE IN THE CARBON POTENTIAL CONTROL SYSTEM IN CONTROLLED ATMOSPHERE HEATING FURNACE

We mainly introduce the principles of carbon potential control system. The function mechanism of oxygen probe was illustrated based on the principles. An experiment was conducted on three samples A, B and C with the use of Oxygen probe. Results show that the hardened layer of sample A greatly exceeds the standard, sample B and sample C work very well. The experiment proves that in carburizing and quenching process the application of carbon potential control system has the advantages of better carbonization and shorter process time.