1. Physical method The physical method mainly combines two or more materials together to form composite powder through the action of mechanical force or external physical force, and no chemical changes occur in the process
2.1 Chemical plating method The chemical plating method adds a certain reducing agent to the metal salt solution containing the coating components. An oxidation-reduction reaction occurs. The generated metal fine particles are deposited around the pre-added dispersed particles to obtain a coating. Covered metal matrix composite powder. It is an important method for preparing coating powder and has the advantages of simple equipment, easy operation, and good coating effect.