| abstract |
The invention relates to the technical field of slurry pumps, and discloses a silicon carbide composite ceramic pump which comprises a pump shell, a front guard plate, an impeller and a rear guard plate, wherein the pump shell, the front guard plate, the impeller and the rear guard plate respectively comprise a ceramic body part, a resin-silicon carbide combined bonding layer and a metal framework part, the resin-silicon carbide combined bonding layer is positioned between the ceramic body part and the metal framework part, and the volume density of the resin-silicon carbide combined bonding layer is 2.65-2.9g/cm 3 The outer surface of the metal framework part and the inner wall of the ceramic body part opposite to the metal framework part are both provided with alkali-resistant interface layers, and the alkali-resistant interface layers comprise the following components in parts by mass: 20-40 parts of silicon carbide powder below 200 meshes; 40-60 parts of epoxy resin; 20-40 parts of a diluent; 2-3 parts of a curing agent; 0.4-0.6 part of defoaming agent; 0.3-0.4 part of leveling agent; 1-2 parts of a coupling agent. The invention can be suitable for different working conditions. |