Determination of Hydroxyl Value Content in Rolling Oil by Fourier Transform Infrared Spectroscopy
Process lubrication is needed in aluminium alloy rolling production,and the hydroxyl value of rolling oil is an important in-dex to measure the lubrication performance.Timely detection of hydroxyl content change in rolling oil can provide basis for rolling production control.The determination of hydroxyl value is generally done by chemical method,but the determination time is long and the operation is complicated.The content of hydroxyl value in rolling oil can be determined quickly and accurately by Fourier transform infrared spectroscopy(FT-IR).The precision of this method is good,the relative standard deviation is 0.18%;the accuracy is high,and the relative error is less than±1%.Compared with the traditional chemical method,the technique has the characteristics of short analysis time,simple operation,good characteristics,no damage to the sample,etc.,which can meet the needs of timely guidance process and improve work efficiency.
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