In modern industrial manufacturing, semiconductor cooling systems, and high-temperature fluid transfer processes, tubing is a critical component determining system stability. Traditional PVC or rubber tubes are prone to plasticizer leaching, cracking, or chemical degradation when exposed to high temperatures (>150°C) or corrosive fluids. Industrial-Grade Platinum-Cured Silicone Tubes are the preferred choice for extreme environments due to their exceptional thermodynamic stability and chemical inertness.
Physics and Chemistry: Platinum Curing and Hoop Stress The superior performance of silicone tubes originates from their unique siloxane backbone (Si-O-Si), which possesses a bond energy significantly higher than the C-C bonds in organic rubbers.
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Platinum Curing Mechanism: Unlike traditional peroxide curing, the platinum curing process utilized by Lixing yields no low-molecular-weight by-products. This ensures an ultra-smooth, high-purity inner wall, preventing cross-contamination during fluid transport, making it ideal for ultra-pure water (UPW) systems.
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Temperature Adaptability and Hoop Stress: Silicone has a very low glass transition temperature (Tg), remaining flexible at sub-zero temperatures. The hoop stress (σ) exerted on the tube wall by internal fluid pressure can be calculated using the thin-walled cylinder formula: σ = (P * r) / t (σ = Hoop Stress, P = Internal Pressure, r = Inner Radius, t = Wall Thickness) By precisely controlling dimensions and leveraging the high tear strength of platinum-cured silicone, the tubing can withstand higher operating pressures without bursting.
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Thermal Expansion and Heat Resistance: Silicone exhibits excellent oxidation resistance, allowing for continuous operation at 200°C. Its relatively low coefficient of thermal expansion reduces the risk of joint leakage caused by expansion and contraction during thermal cycling.
Industrial Applications: Chiller Systems and High-Temp Transfer
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Semiconductor Chiller Systems: Maintains excellent flexibility and aging resistance during alternating high/low-temperature coolant transfer without particle shedding.
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High-Temperature Steam and Thermal Fluids: Exceptional hydrolysis resistance ensures the tube wall does not become brittle in high-pressure steam environments.
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