What are the effects of uneven wall thickness in capillary silicone tubes?

In the production and application of capillary silicone tubes, uneven wall thickness is a common quality issue. Even a slight deviation can cause significant problems in practical use.
Firstly, it directly leads to unstable fluid delivery. Due to the extremely small inner diameter of capillary silicone tubes, uneven wall thickness results in inconsistent channel dimensions inside the tube. This causes fluctuating flow rates and inaccurate volume delivery. In high-precision scenarios such as laboratory micro-sampling and medical infusion, such errors can directly compromise the accuracy of experimental data and even disrupt drug dosage administration, posing potential safety hazards.
Secondly, it significantly reduces the durability of the tube. Uneven wall thickness leads to uneven stress distribution. Thinner sections lack sufficient strength, making the tube prone to local fracture, bursting, or leakage during bending, stretching, or high-pressure fluid transportation. This not only damages equipment but may also cause contamination of reagents or liquid medicine, negatively impacting production efficiency and operational efficiency.
Additionally, uneven wall thickness leads to poor batch consistency. Deviations in dimensions between different batches of tubes require repeated equipment recalibration, increasing installation and maintenance costs. Furthermore, in high or low temperature environments, tubes with uneven wall thickness are susceptible to deformation or distortion, shortening their service life and affecting long-term operational stability.
For enterprises, the core solution to avoid these issues is to strictly control the production process. By adopting high-precision molds and implementing rigorous online inspection, manufacturers can maintain wall thickness tolerances within standard limits, ensuring the reliable performance of capillary silicone tubes in various applications.