Cemented carbide (WC-Co) pitot probes are ideal for desert wind tunnel testing, where high dust concentrations accelerate wear, and their wear-resistant design ensures long-term reliability.Sensor Calibrationwelcome to click on the website to learn more!
WC-Co’s hardness (HV 1500-2000) makes it 5-10 times more wear-resistant than stainless steel, critical in flows with sand particles (50-200 μm diameter). A desert wind tunnel test showed WC-Co probes retained 95% of their original dimensions after 1000 hours, while stainless steel probes lost 0.2mm of material from the head, increasing measurement error by 3%.
The cobalt binder (5-10% in WC-Co) enhances toughness, preventing brittle fracture when struck by large particles. A controlled impact test with 100μm sand grains at 100m/s found WC-Co probes with 8% Co content had 80% fewer cracks than those with 3% Co.
Probe head design further reduces wear: a rounded, polished surface (Ra <0.1μm) minimizes particle adhesion and abrasive drag. In a dust-laden airflow test, polished WC-Co probes wore 30% slower than rough-surfaced ones.
For high-dust environments like desert wind tunnels, mining ventilation systems, or 沙尘暴模拟 facilities, WC-Co probes offer unmatched durability, reducing replacement frequency and ensuring consistent data quality.