The porous titanium plate is a metal porous titanium plate made of titanium powder, which is sintered at a high temperature by a special molding process.
The plate is distributed with a large number of open pores with uniform structure, which is used as a filter element, with low filtration resistance and good permeability. With high temperature resistance, corrosion resistance, long service life, high mechanical strength, and easy regeneration, they are applicable to gas, liquid filtration. Metallic porous titanium plates can also be used as mechanical supports for electrolyte diaphragms with high differential pressure and solid polymer electrolytes.
The support of the diaphragm of the aqueous solution electrolyzer has very ideal application effect and has been widely used in industry.
At present, the processing of metal porous titanium plates mainly includes powder rolling method and isostatic pressing method.
Powder rolling method
The powder rolling method porous titanium plate, the manufacturing process is to use metal or alloy powder as raw material, feed them into the rolling mill to directly roll out the porous titanium plate, and then perform sintering, rolling and other processes to prepare a certain porosity. porous titanium plate. The thickness of the porous titanium plate prepared by the powder rolling method is generally greater than 1mm.
Isostatic pressing process
The isostatic pressing process is to place metal or alloy powder in a closed plate-shaped container, and apply equal pressure in all directions to the powder. Under the action of pressure, the powder is shaped to form a porous titanium plate, and then the powder particles are sintered to interact with each other. Welded to form a honeycomb structure with connected pores. The porous titanium plate prepared by the isostatic pressing process has the characteristics of high strength, uniform air permeability, and uniform pore size distribution.
