Influence of injection moulding production processes on the transparency of cannulae trocar

Single-use trocars play a crucial role in medical-surgical instruments. Its core component, the cannula, not only requires sufficient strength and impact resistance, but also must maintain a high degree of transparency so that the surgeon can clearly observe the internal situation during the procedure.PC (polycarbonate), as a high-performance engineering plastic, has become the ideal material for manufacturing cannula components due to its excellent transparency, impact resistance and high thermal stability. The ideal material for the manufacture of cannula components. In the following, we will elaborate on how to ensure the transparency of PC cannula parts from various dimensions, such as raw material selection, processing technology, surface treatment and storage management.

Raw material selection

Firstly, the quality of the raw material is the cornerstone for determining the transparency of PC tubing. It is important to choose high purity polycarbonate raw materials, which can effectively reduce the impact of impurities on transparency. Ensuring that the polycarbonate resin used is lighter in colour and has fewer impurities is the first step in guaranteeing the transparency of the final product. Higher purity raw materials mean fewer scattering centres and higher light transmission, ensuring that casing components maintain excellent clarity during manufacture and use.

Process optimize

Precise control of process parameters during the injection moulding process is also critical to maintaining the transparency of PC sleeves. By adjusting parameters such as processing temperature, cooling rate and pressure, the formation of bubbles and defects can be reduced. Lower processing temperatures and slower cooling speeds help reduce bubble formation, as too fast cooling can lead to internal stress concentrations that affect transparency. Also, proper mould design and temperature control are key to ensuring uniform cooling of the product and avoiding internal stresses and deformation.

Surface Finishing

Surface scratches and particles are another major factor affecting transparency. Therefore, the use of polishing and fine surface treatment techniques, such as mirror polishing or chemical etching, can eliminate these defects and further enhance the optical transparency of the casing. In addition, anti-static treatment is also an important part of maintaining transparency, as static build-up attracts dust and tiny particles, which affects the visual effect.

Storage and Management

Avoiding exposure to contaminants and other factors that may affect transparency is equally important in the storage and processing of materials. pc materials should be stored in a dry, clean environment, avoiding prolonged exposure to high temperatures, humidity or direct sunlight. Before processing, raw materials should be subjected to strict quality checks to ensure that no impurities are mixed in. At the same time, a reasonable production plan should be made to avoid long time storage of semi-finished products in order to reduce the loss of transparency caused by environmental factors.

Conclusion

To sum up, Donho's efforts to ensure the transparency of PC casing components require comprehensive consideration in terms of raw material selection, processing optimize, surface treatment and storage management. By implementing these measures, we can not only ensure that the casing components maintain high transparency during the manufacturing process, but also improve their overall performance to meet the high standard of materials required for medical and surgical instruments. With the continuous progress of medical technology and the increasing demands on material properties, the continuous improve of the production process of PC cannula components will be a key direction for future research and development.