On Checking Grinding Wheels by Means of Measuring the Back Scattering of β-ray

The present paper deals with the experiments that the back scattering of grinding wheel change considerably by the different kinds of wheels and conditions of wheel surface.The results obtained are as follows:(1) The back scattering of β-ray changes corresponds to the respective grade of the five factors of the grinding wheel, leading to the possibility for checking the wheel by measuring the back scattering.(2) If the abrasive grain, bond and pore are distributed irregularly in the test wheel, the values of back scattering at the different places of the wheel surface, deviate remarkably from the mean value, but in the case of the uniform wheel, the values of back scattering are stable, therefore this measuring method can detect the rejected wheel.