The Importance of Measuring Quinoline Insoluble Matter in Coke TestingIn carbon material industries, assessing the purity and structure of coke is essential for quality control and downstream processing. The Coking Solid Quinoline Insoluble Matter Tester from Changsha Friend Experimental Analysis In

Lubricating Oil Evaporation Loss Tester Understanding the Role of Lubricating Oil Evaporation Loss Testing in Industrial MaintenanceThe performance of lubricating oil directly affects the reliability and longevity of engines and machinery. Among the critical parameters to assess is the evaporation l

Fretting Wear Protection by Lubricating Greases Tester – Analysis and MaintenanceWear Scar EvaluationAfter testing, examine wear scars via optical or electron microscopy. Measure scar width and depth to calculate wear volume. Compare untreated and greased specimens to quantify protection factor.Debr

Fretting Wear Protection by Lubricating Greases Tester – Mechanisms and DesignOverview of Fretting WearFretting wear occurs under small oscillatory motion between contacting surfaces, often leading to surface fatigue and debris formation. Changsha Friend Experimental Analysis Instrument Co., Ltd’s F

Brake Fluid Anti-Rust Performance Tester – Data Analysis and MaintenanceData InterpretationCalculate corrosion rate in mg/cm²·day by dividing mass loss by coupon surface area and exposure time. A rate below 0.03 mg/cm²·day generally indicates acceptable performance for mineral-based fluids; syntheti