The application of porous biotitanium powder metallurgy is expected to benefit mankind

Date：2018/08/20Type：Company News

Keywords：广东大宏新材,金属粉末注射成形,MIM技术,MIM新材料,粉末冶金,精密复杂零件,精密结构件,一次成形,脱脂烧结,MIM手机零件,MIM智能穿戴,MIM陶瓷应用,MIM汽车零件,MIM医疗器械，粉末冶金微型齿轮，粉末冶金小模数齿轮

Titanium is widely used in biological materials because of its good compatibility and affinity with human organs, as well as its light resistance to corrosion and harmlessness. The porous ni-ti shape memory alloy developed in recent years has opened up a new application prospect for ni-ti alloy in medical treatment. The material has accurate dynamic function and can return to the original design state accurately after being subjected to large plastic deformation and heat. If a small stent is inserted into the artery, the swelling of the stent pushes out the clogged artery lumen, and blood flow is restored. Many organs of the body can be unblocked by such stents, such as the esophagus, trachea, biliary system and urinary system. The super-elastic ti-ni alloy can also be used as the highly sensitive guide wire in the human organ implantation, which can be inserted into the human arterial system with good torsion, resilience and low oscillation.


The methods of preparing porous Ni-Ti alloy by powder metallurgy include pre - alloy powder method, self - propagating high temperature synthesis method, hot isostatic pressure method and elemental powder mixed sintering method. Among them, the elemental powder mixed sintering method USES metal powder as raw material, through mixing, molding, and then sintering to obtain various types of products required, which is an important method to prepare porous ni-ti shape memory alloy. The porous ni-ti shape memory alloy prepared by this sintering method has high porosity, good mechanical properties, shape memory properties and biocompatibility. Under the pressure of 140 mpa, 950 ℃ under solid phase sintering the preparation of Ni - Ti alloys, has given priority to with NiTi phase, appropriate porosity of the alloy.


For more information about powder injection molding technology, please click on guangdong da-hong metal powder injection molding MIM technology.


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