Uniform Structure Titanium Fiber Sintered Felt

The uniform structure titanium fiber sintered felt is a filter material made by pressing and sintering titanium fiber in a high-temperature sintering furnace. It is usually made of micron-sized titanium fibers through non-woven paving, stacking and high-temperature sintering process. This material has a multi-layer structure, and the layers of different pore sizes form a pore gradient, which can control extremely high filtration accuracy and large dirt holding capacity.

The porosity of the uniform structure titanium fiber sintered felt is usually between 50%-70%, which makes it excellent in the transmission of gas and liquid. Due to the use of non-woven paving technology, the structure of titanium fiber sintered felt is uniform, which helps to improve filtration efficiency and stability. The sintering process gives titanium fiber felt a high mechanical strength, enabling it to be used in a variety of industrial applications.

Characteristics of uniform structure titanium fiber sintered felt

The uniform structure titanium fiber sintered felt has a series of unique properties that make it very useful in a variety of applications:

1. High strength and light weight

Titanium material itself has a high strength-to-weight ratio, which allows titanium fiber sintered felt to provide good mechanical strength while remaining lightweight.

2. Corrosion resistance

Titanium material is highly resistant to many chemicals, including acidic and alkaline environments, so titanium fiber sintered felt can also maintain stable performance in harsh chemical environments.

3. High temperature stability

Titanium fiber sintered felt can work in high temperature environments without losing its structural integrity, which makes it very useful in high temperature filtration and thermal management applications.

4. Filtration accuracy

By adjusting the pore size and number of layers of the fiber felt, different filtration accuracies can be obtained to meet different filtration needs from coarse to fine.

5. Conductivity

In some applications, such as in fuel cells, the surface of titanium fiber sintered felt may be coated with a conductive material, such as platinum or iridium, to improve its conductivity.

Parameters

Application fields of uniform structure titanium fiber sintered felt

Due to its excellent performance, the uniform structure titanium fiber sintered felt is widely used in many fields:

1. Aerospace

In the aerospace field, titanium fiber sintered felt is used as a reinforcement material for aircraft structures, such as wings, fuselages and other parts.

2. Filter material

In the chemical, petroleum, pharmaceutical and other industries, titanium fiber sintered felt is used as a high-efficiency filter material for filtering gases and liquids.

3. Fuel cell

In proton exchange membrane fuel cells (PEMFC), titanium fiber sintered felt can be used as a gas diffusion layer to help the gas be evenly distributed on the electrode.

4. Electrolyzer

In hydrogen production electrolyzers, titanium fiber sintered felt can be used as an anode gas diffusion layer to improve electrolysis efficiency.

5. Other applications

Also includes automotive, military, industrial and other fields, such as thermal insulation materials at high temperatures, catalyst carriers, etc.

Preparation method

The preparation method of the uniform structure titanium fiber sintered felt mainly includes the following steps:

1. Fiber preparation

First, titanium fibers with a diameter of microns need to be prepared. These fibers can be prepared by melt spinning, rapid condensation or other methods.

2. Non-woven laying

The prepared titanium fibers are laid into a felt structure by non-woven technology. This step ensures the random distribution between the fibers, thus forming a highly porous structure.

3. Stacking

Fiber felts of different pore sizes are stacked together to form a pore gradient according to the required filtration accuracy.

4. High-temperature sintering

The stacked fiber felt is placed inside the sintering protection screen and then sintered at high temperature in a vacuum environment. Sintering temperature and time are adjusted according to the desired material properties.

5. Post-processing

After sintering, some post-processing steps may be required, such as surface treatment, cutting or shaping to meet the needs of specific applications.

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