| 摘要 |
A drum for a mixer assembly is disclosed. The drum (1) comprises a drum body (2) for rotatable mounting on a support. The drum body (2) has a wall forming an internal surface (10) and defining an interior space within which a material to be mixed is received. A coating (15) comprising ceramic particles and a support material that bonds the particles into the coating (15) and bonds the coating (15) to the internal surface (10) of the drum body (2), is applied to the internal surface (10) of the drum body (2). The ceramic particles are regular in shape, for example spherical, and have a Rockwell hardness of at least 90. The support material is a polymeric material that has a tensile adhesive strength of about 13700 kPa. A mixer truck for mixing and transporting cementitious materials having the drum (1) is also disclosed. The drum has blades (11) and flights (12) and these are also coated with the same material (15) that coats the internal surface (10) of the drum (1). |
