Ordinary silicone tube general temperature range is -40-200 ℃, resistant to special high temperature silicone tube temperature range up to -60-300 ℃.
Medical silicone tube for medical devices with high transparency, odorless, excellent aging resistance, high resistance to tearing, excellent resilience, permanent deformation, weak acid and alkali resistance, resistance to high and low temperatures and other characteristics, can be in the -50-250 degrees normal work, with excellent insulation and breathability. However, the medical silicone tube is generally semi-transparent with some foggy, not as transparent as the PVC hose, medical silicone tube parameters are resisting each other, because the color of the silicone rubber itself is semi-transparent, such as the production of its full transparency, will change the physical structure of the silicone rubber itself, thus making changes in the parameters, and ultimately affect the service life of the medical silicone tube.
1. Tensile test Pull the silicone tube by hand without obvious deformation or elongation, and 3 times back and forth after bending without cracks, silicone tube skin without any wrinkle phenomenon. 2. Flame retardant test Silicone tube in the open flame state after ignition, away from the natural extinction after 5S. 3. Joining force test The silicone tube to be tested shall be repeatedly folded at 180 degrees for 3-5 times, and then the pressure resistance test shall be carried out. 4. High temperature resistance test Take the silicone tube to be tested 1-2m over the tunnel furnace (120 ℃ for 45 minutes), the surface should not have yellowing, bubbles and other appearance of bad, and then the high temperature after the silicone tube pressure resistance test, and meet the pressure resistance requirements. 5. High-pressure resistance test Silicone tube to be tested for sampling, sampling (after high temperature, joint test, tensile test), and then the corresponding conductor (copper or iron rod) through the silicone tube, take the pressure gauge pressure bar end contact conductor, the other end of the conductor through the silicone tube to move back and forth, when the silicone tube is penetrated when the pressure gauge alarm sound is substandard, and vice versa, for the qualified products.