The pneumatic melt spinning tester, as a new type of spinning equipment, is sparking a wave of innovation in the field of materials science. With its unique working principle and outstanding performance, it provides researchers and enterprises with an efficient and convenient spinning solution.

I. Working Principle

The working principle of the pneumatic melt spinning tester is based on the driving force of high-pressure gas. The device introduces compressed gas (such as nitrogen) into the melting chamber, using the gas pressure to extrude the heated and melted polymer melt through the spinneret of the spinning assembly. During extrusion, the melt stream rapidly solidifies under the cooling effect of air, forming nascent fibers. This unique spinning method not only avoids the complex operations and cleaning challenges of traditional screw extrusion but also achieves more uniform spinning, improving fiber quality and production efficiency.

II. Equipment Structure

1. Melting System: Composed of a melting chamber, chamber cover, and sealing connectors, ensuring stable operation under high temperature and pressure while preventing melt leakage.

2. Spinning Assembly: Includes a spinneret housing, filter screen, distribution plate, and spinneret plate. The filter screen removes impurities, and the distribution plate evenly distributes the melt to each spinneret hole, ensuring uniform spinning.

3. Pneumatic Control System: Adjusts the gas pressure through the high-pressure gas inlet pipe to precisely control the extrusion pressure and speed of the melt, meeting the needs of different materials and processes.

4. Temperature Control System: Utilizes advanced heating technology to ensure uniform and stable temperature inside the melting chamber, with a temperature control accuracy of ±0.5°C, suitable for various temperature-sensitive polymer materials.

5. Fiber Collection System: Consists of a collection roller and winding device, allowing adjustable collection speed to achieve fully drawn yarn (FDY) and winding nascent fibers into neat rolls for subsequent processing.

III. Performance Advantages

1. Easy Operation: Equipped with a PLC touchscreen control, allowing users to set and display parameters such as heating temperature, collection speed, and gas pressure. The intuitive interface lowers the technical threshold for operators.

2. High Spinning Efficiency: Utilizes high-pressure gas for spinning, providing strong extrusion pressure and enabling multi-hole spinning, which improves spinning efficiency and meets small-batch production needs.

3. Strong Adaptability: Suitable for various polymer materials such as PP, PE, PA, and PET, and can be used to prepare micron/nanoscale polymer fibers. It is widely applied in filtration materials, biomedicine, energy, and other fields.

4. Compact Structure: The device is small in size, occupies minimal space, and is easy to install and maintain, making it particularly suitable for laboratories and small enterprises.

5. Safe and Reliable: Equipped with multiple safety protection devices, such as overpressure protection, overheating protection, and leakage protection, ensuring operator safety and stable equipment operation.

IV. Application Fields

1. Research Institutions: Used for the development and experimentation of new materials, helping researchers explore the preparation processes and properties of novel polymer fibers, providing strong support for advancements in materials science.

2. University Education: Serves as a teaching demonstration device, allowing students to intuitively understand the principles and processes of melt spinning, fostering practical skills and innovative thinking.

3. Enterprise R&D: Used for new product development and prototyping, quickly verifying product feasibility, shortening R&D cycles, and reducing costs.

4. Small-Scale Production: Suitable for small-batch, multi-variety production needs, enabling flexible adjustment of production processes to meet diverse market demands.

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