April 29, 2025

Material choice for flange shims affects sealing performance, corrosion resistance, and durability. Stainless steel (e.g., 316 SS) offers high strength and withstands temperatures up to 800°F, while PTFE provides chemical resistance. Proper selection ensures compliance with standards like ASTM F916 and prevents leaks or equipment failure. Metal vs Plastic Showdown Last year, the Zhongxing 9B […]

Waveguide bandpass filters allow frequencies within a specific range, typically 1-10% bandwidth, to pass while rejecting others by over 40 dB. They use resonant cavities spaced at half-wavelength intervals, tuned by adjusting cavity size and coupling for optimal performance. Bandpass Filter Principle Last year, the X-band transponder of APSTAR-6 satellite suddenly experienced carrier leakage, and