In the preparation process of sintered porous titanium plates, in order to achieve a balance between pore size and mechanical properties, the following factors need to be considered:
Selection of raw materials: Selecting appropriate raw materials can control the pore size and porosity of the titanium plate, thereby realizing the regulation of air permeability and mechanical properties. Generally speaking, raw materials with finer particle size can produce sintered porous titanium plate with smaller pore size, while raw material with coarser particle size can produce sintered porous titanium plate with larger pore size.
The type and amount of additives: Additives can change the sintering behavior of raw materials and affect the porosity and pore size of titanium plates. Generally speaking, adding an appropriate amount of flux can reduce the sintering temperature and promote the bonding between particles, so as to obtain a sintered porous titanium plate with smaller pore size and lower porosity, and improve the mechanical properties; while adding too much flux will The porosity is too high, which affects the mechanical properties of the titanium plate.
Sintering temperature and time: The sintering temperature and time directly affect the pore size and porosity of the titanium plate. Generally speaking, a higher sintering temperature and a longer sintering time can obtain a sintered porous titanium plate with a larger pore size and a higher porosity, but it will also lead to a decrease in the mechanical properties of the titanium plate. Therefore, the selection of sintering temperature and time needs to be weighed according to specific application requirements and performance requirements.
Pretreatment before sintering: Before sintering, the raw materials need to be pretreated, such as compressed into particles, cleaned, etc., to obtain uniform particle distribution and high compactness, thereby improving the mechanical properties of the sintered titanium plate.
In summary, when preparing sintered porous titanium plates, it is necessary to comprehensively consider the selection of raw materials, the type and amount of additives, the sintering temperature and time, and the pretreatment before sintering to achieve a balance between pore size and mechanical properties. At the same time, the appropriate pore size and porosity should be selected according to the specific application requirements and performance requirements to obtain the optimal balance of air permeability and mechanical properties, so as to meet the requirements of practical applications.
