Baoji Fairy Titanium Industry Co., Ltd. is one of the leading manufacturers and suppliers of porous titanium plate in China. Welcome to wholesale bulk high quality customized products made in China here from our factory. Good service and low price are available.
1. Porous titanium plate is a kind of material with excellent filtration performance. It is usually made by the metal powder rolling method. Powder rolling is a process of directly rolling metal with metal powder as raw material. Firstly, it is rolled into a strip blank on a powder rolling mill and then sintered, cold-rolled (or hot rolled), and annealed to make a dense or porous finished plate and strip.
2. Size and parameters
Sintered porous titanium plate filtering accuracy 1-80 ㎛
Maximum size 1.0x400x1000, d: 0.5-3mm
Porosity 30% - 40%
Compressive failure strength ≥ 0.3MPa / ㎠
3. Characteristics
The porous titanium plate made of titanium metal powder has the excellent corrosion resistance of titanium, can resist the erosion of various concentrations of nitric acid and most acid-base solutions, and is non-toxic, has high-temperature resistance, high strength, and high porosity, It has the advantages of uniform ventilation and easy cleaning.
Porous titanium sheet has a uniform structure, high porosity, and good compressive strength. It is generally used under 300 ℃. With good corrosion resistance and biocompatibility, it is widely used in hydrogen production from new energy, hydrogen fuel cell electrode plate, environmental protection, hydrogen-oxygen ventilator, food purifier, fine chemical industry, Medical Pharmacy, and other industries, precision filtration, gas distribution, decarbonization treatment, and biological implants.
4. What are the applications of porous titanium sheets?
Ozone treatment of drinking water and industrial wastewater is a rapidly developing technology at home and abroad in recent years. This method is: ozone is evenly put into the sewage through a porous plate, and a chemical reaction occurs with the sewage, so as to achieve the purpose of disinfection, decolorization, and purification.
Therefore, the porous plate is required to be resistant to the corrosion of industrial sewage and ozone and has high porosity and gas rate, evenly distributed pore diameter, and certain strength. In the past, some units in China that used the ozone method to treat sewage used PVC perforated plates, ceramic perforated plates, glass perforated plates, and other materials, but they could not meet the requirements due to poor corrosion resistance and low strength. A porous titanium sheet solved this big problem.
At present, porous titanium sheet has been used as ozone diffusion plate in the sewage treatment of developing and printing film, organic dye, oil refining, and hospital and rocket engine test run. In the treatment of film processing wastewater, the service life of PVC perforated plate was only 350 hours. After replacing it with a porous titanium sheet, the service life was increased to 3 years. In the ozone treatment of refinery wastewater, PVC perforated plate was originally used, but the ozone absorption rate was only 65%, which wasted a lot of ozone and increased the cost of wastewater treatment. After using a Porous Titanium Sintered, the ozone absorption rate was increased to 85%, which greatly improved the treatment effect.
5. Characteristics and preparation methods of porous titanium and titanium alloy materials
Porous titanium and titanium alloys combine the properties of titanium alloys and porous materials to reduce the weight of the material without weakening its strength while maintaining high toughness and corrosion resistance. Therefore, porous titanium and its alloys have important application value in some special fields, especially in the biomedical industry, because porous titanium has both high biocompatibility and excellent mechanical properties, so the advantages are very obvious. Compared with the overall porous titanium material, the titanium material that is only porous on the surface has higher mechanical strength and can withstand greater physiological loads, thus showing a broader application prospect in the medical field.
Porous materials have an open porous structure that allows the ingrowth of new bone cells and body fluids, and Young's modulus of porous materials can be adjusted to match the porosity of natural bone and improve its biomechanical compatibility. Porous titanium has attracted extensive attention in the medical community due to its excellent biocompatibility and good corrosion resistance. Porous titanium plate provides a new option for clinical treatment of early femoral head necrosis, slows down the progression of the disease and delays the time of joint replacement, and is an effective method for orthopedic treatment of early femoral head necrosis. Modern medicine believes that the treatment for femoral head necrosis is surgery. Experts at home and abroad advocate palliative surgery for early necrosis, such as core decompression, vascularized bone grafting, vascular implantation, and bone stenting. Late unavoidable artificial joint replacement surgery and so on. However, in general, surgical therapy is not accepted by many patients because of its great pain, high cost, long recovery period, wide limitations, and unsatisfactory long-term effects. Therefore, using effective methods to prevent the occurrence and development of femoral head necrosis and promote the regeneration of new bone in the necrotic area has become the focus of orthopedic physicians.
At present, the methods for preparing Porous Titanium Sintered materials are as follows:
1. Metal deposition method: Metal deposition methods mainly include vacuum evaporation method, electrodeposition method, plasma spraying, and reactive deposition method, among which the most common deposition method is the plasma spraying method. In general, plasma spraying has unique advantages in preparing thin films or coatings, and the method can also be used to process porous metals.
2. Solid-state sintering method: This method mainly includes the metal accumulation sintering method, pore-forming agent addition method, slurry foaming sintering method, template method, combustion synthesis method, etc.
a. The metal stacking sintering method is a method of sintering the stacked hollow spheres or powders at high temperature and forming metallurgical bonds through high-temperature diffusion to prepare porous metals. In addition, the wire winding method can also be used to form a blank and then sinter to prepare a porous material.
b. The method is to uniformly mix the pore-forming agent and the titanium powder in a certain proportion, and then remove the pore-forming agent by heating or dissolving before or after sintering to obtain a porous structure. The method has wide applicability, a simple preparation process, and uniform pore distribution.
c. The slurry foaming method uses metal powder as raw material and is prepared into slurry by adding a foaming agent, etc., and then adding it to the mold for heating. Due to the action of the additive and the foaming agent, the gas starts to expand, and after sintering, the Porous metals can be obtained.
d. The template method can also be used to prepare porous titanium. Generally, the sponge is used as a template, titanium slurry is immersed in the template, and after drying, the template is removed by heating, and finally porous titanium and its alloy are obtained by high-temperature sintering.
3. Liquid solidification method: According to different heating sources, it can be divided into electron beam heating forming method and laser engineering net forming method.
a. Electron beam processing. Electron beam processing is a special processing method that uses the thermal energy generated when an electron beam with high power density impacts a workpiece to melt and vaporize materials. This method is also one of the commonly used methods in rapid prototyping technology.
b. Laser engineering net shape method. The laser engineering net shaping method is also a kind of rapid prototyping technology. This technology uses computer-aided design and rapid prototyping technology to convert the three-dimensional solid model into plane information and then generates the CNC machining code, which is finally transmitted to the control center and heats the laser. The molten raw materials are stacked layer by layer to produce solid parts.
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