He try to use every traditional mixer machine, but its couldn’t mix heavy iron powders and light carbon powders very well: 1. Every traditional mixer machine have using more than 50 years, there are not new innovation mixer machine come out. 2. Every traditional mixing machine have its’ design defect, the uniformity is not good. This principle make the vessel running, and the powders is mixed by gravity diffusion without dead angle In the same time, the inside blade is two times faster running than the outside vessel. It forced mix the powder and make higher efficient mixing Created by himself Has national invention patent Combine two mixing principle Improve the mixing uniformity and mixing efficiency 0 Gravity Diffusion Type Mixing Principle: Repeatedly raise the center of gravity of the powder, use the power of gravity to force the powder flow, diffuse, hedge, so as to achieve the purpose of uniformity. Representative Mixers: V-type mixer 3D mixer Advantages: Macro-uniformity,no dead corners. Disadvantages: Micro-uniformity is not good. Forced shear mixing Principle: Using blades to shear powders repeated.Microscopic powders are fully displaced,thus achieve the purpose of uniformity. Representative Mixer: Ribbon mixer Advantages: High efficiency,Micro-uniformity. Disadvantages: Dead corners in the mixing barrel,Overall diffusion is slow. Double movement mixing is: Forced shearing mixing on the basis of gravity diffusion mixing. Principle: Use gravity diffusion mixing and forced shearing mixing at the same time,thus achieve the purpose of high uniformity and high efficiency. Advantages:Macro-uniformity and Micro-uniformity,high efficiency,less energy consumption etc. Disadvantages:None