PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
Company Dynamics
26-03
PFA Bellows and PFA Straight Pipes
In high-purity applications such as semiconductors and photovoltaics, the smooth inner wall of PFA straight tubing ensures zero contamination; in industries like chemicals and automotive, bellows are an essential choice thanks to their flexibility and vibration-damping properties—key selection criteria: opt for straight tubing in cleanroom environments, and choose bellows for dynamic applications.
26-03
What are the common specifications and dimensions of electronic-grade PFA tubing, and what are its primary application areas?
Electronic-grade PFA tubing is the “golden artery” of semiconductor manufacturing, capable of conveying highly corrosive media such as hydrofluoric acid under extreme conditions ranging from −80°C to 260°C, with metal ion leaching below 0.1 ppb. Its mirror-polished inner wall (Ra ≤ 0.2 μm) and Class 1,000 cleanroom production environment ensure the ultra-high purity required for 5-nm chip fabrication, accelerating breakthroughs in domestic substitution.
26-03
What is a Teflon Venturi tube? Structure and operating principle of the Venturi tube
The Venturi tube is a critical device for measuring fluid pressure differentials and is widely used for large-diameter flow measurement in industries such as steelmaking and thermoelectric power generation. The PTFE Venturi tube, designed as an accessory for spray guns, undergoes precision CNC machining to ensure high accuracy and durability. Its unique structure, based on Bernoulli’s principle, enables efficient separation of gas components, providing reliable data support for applications in aerospace, chemical processing, and other fields.
26-03
What factors influence the coefficient of thermal expansion of PFA tubing? What are the key considerations for applying the coefficient of thermal expansion of PFA tubing?
The coefficient of thermal expansion of PFA tubing is 7 to 10 times that of metals; a 1-meter length of pipe will expand by 10.4 mm when the temperature rises by 80°C. When selecting PFA tubing, it is essential to consider the material grade, operating temperature range, and installation compensation. Semiconductor-grade modified PFA can significantly reduce thermal expansion—DanKai Fluoroplastics experts advise that, under high-temperature service conditions, sufficient expansion allowance must be provided to prevent rigid connections.
24-06
What material is F46 short for, what is the chemical composition, and what is the sintering process?
F46 is a copolymer of tetrafluoroethylene and hexafluoropropylene. The content of hexafluoropropylene is about 15%, and it is a modified material of polytetrafluoroethylene. The Chinese full name of F46 is polyethylene glycol propylene, referred to as F46, English full name is Fluorinated ethylene propylene, English referred to as FEP.
24-06
What are the characteristics and applications of industrial grade Teflon tubes?
Industrial-grade Teflon pipe, as a high-performance pipe, has been widely used and recognized in various industries around the world, especially in the industrial field, by virtue of its unique chemical stability and excellent physical properties.
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