Preparation of Sintered Porous Metal material
Preparation of porous sintered metal material is generally through the following stages:
1) a porous sintered metal material structure design;
2) preparation of a porous sintered metal raw materials (high precision mesh weave bundle drawn metal fiber, high-grade metal powder preparation). Preparation of porous metal material, raw material requirements with good geometric properties, namely the metal fiber material requires the same wire diameter, length; raw material requirements of the metal powder has a very similar geometry dimensions;
3) prepare porous metal sintered composite material preparation technologies, including porous metal structure design;
4) prepare a porous sintered metal filter assembly forming material, wherein the welding involves forming medium.
Porous sintered metal filter structure generally comprises microporous support layer, operating layer (filter layer), a protective layer. In the filter filtering surface working layer generally use a reverse tapered pore structure design. This structure can be completed multi-stage filtering effect, so that foreign particles do not accumulate in too quickly to intercept surface filter, which will help improve the filter dust resistance, extended filter work cycle.