Preparation method of silver and metal mixed powder

The invention particularly relates to a preparation method of silver and metal mixed powder, which innovatively combines a chemical method and a physical method to prepare the silver and metal mixed powder, combines a metal foil and silver into a silver-coated metal foil by utilizing the chemical method, and extends the silver-coated metal foil to the thickness of 10-20 microns by utilizing a rolling mill by utilizing the physical method. And then the foil strip impacts the powder through air jet pulverization, and silver and metal mixed powder meeting the particle size requirement is sorted out. Due to the fact that the thickness of a silver layer of the extended silver-coated metal foil is basically consistent, the thickness of a metal layer is also basically consistent, at the moment, each piece of crushed metal powder is provided with silver, the silver layer and metal are compounded to prepare silver and metal mixed powder, the silver and the metal can be effectively and evenly mixed, and batch productio