Metal foam is a kind of porous material with a large number of pores in the metal matrix. Its special structure determines that it has many special properties which are not found in high density metals. Features: low density, large pore size, diverse pore structure, large surface area, high porosity, strong impact absorption ability, high temperature resistance, fire resistance, corrosion resistance, sound insulation and noise reduction, high thermal conductivity, high electromagnetic shielding, strong weather resistance, strong filtering ability, convenient processing, convenient installation, high molding accuracy, the surface can be sprayed.
Metal foams can achieve the desired comprehensive properties by changing their density and pore structure. Metal foams have excellent physical and mechanical properties and can be used as structural and functional materials. It has both metallic and porous characteristics. This is the charm of this unique material, therefore, it is widely used in many fields.
The properties of metal foams mainly depend on the structural parameters such as porosity, pore size, through-hole ratio and density. The pore structure parameters of metal foams mainly depend on the preparation process.
The following is the introduction of our company’s metal foam preparation technology:
- The chemical plating The polyurethane sponge through the electroless plating process, so that the metal ions in the bath is reduced to metal, and deposited on the surface of the polyurethane sponge to get prefabricated parts.
- The electroplating Cut the preform, install the fixture, and put it into the plating tank for electroplating. During electroplating, the quality of the anode material, composition of the bath, temperature, current density, power time, impurities precipitation will affect the quality of the coating, need to be timely control.
- The sintering The semi-finished product after electroplating is sintered and reduced by sintering furnace to obtain metal foam.
