How should the wear resistance of tungsten alloy screws be evaluated? Mainly through wear rate, friction coefficient, and hardness-related tests. First, Taber abrasion test: Calculate mass loss, low wear rate <0.01g/1000 cycles. Second, friction coefficient measurement: Pin-on-disk test, coefficient 0.2-0.4. Third, hardness correlation: HRC 25-35 ensuring scratch resistance. Fourth, practical simulation: Thread wear testing. Fifth, microstructural analysis: SEM observing wear mechanisms. These evaluations optimize applications.
