The manufacturing of high-quality electrodes requires a good interaction between the dry aggregate and the binder. Analysis of the individual raw material properties only does not provide direct information regarding the wetting behavior of a specific granular carbon with a specific binder material.
The RDC-163 apparatus can be used for evaluating the Wettability of a coke (with use of a standard pitch) or the Wetting Power of a pitch binder (with use of a standard coke). For this purpose, a given mass of pitch is added to the top of the coke sample in a cylinder, firstly tapped for a given number of strokes in the bulk volumeter and then placed in a preheated air-forced cabinet for a given period of time. After cooling down, the weight of coke agglomerated with pitch is determined by calculating the Wettability or the Wetting Power [-].
Weighing scale with an accuracy of 0.01 g
Crusher ( < 1.5 mm)
Sieving machine (2, 1, 0.5 and 0.25 mm sieves)