Study on the Effect of Ceramic Texture on Mud Wettability of Flume Coating Surface
Based on the micro-research object of mud coating in water tank of Polycrystalline Diamond Compact(PDC)bit,the surface of water tank coating was prepared by alumina texturing.Based on the contact Angle theory,the wetting state of mud droplets on the surface of the textured coating was analyzed,and the anti-mud adhesion effect of the textured coating was investigated through the dynamic mud wettability experiment.The results show that the droplets on the textured surface are in a compound wetting state,and the droplets in the Cassie-Baxter contact state tend to transition to the Wenzel contact state.The ceramic texturization treatment on the coated surface of the drill flume can significantly improve the mud adhesion resistance of the flume,thereby reducing the probability of mud retention.