tungsten sheet in the same working conditions

Depending on the circumstances, commonly used assessment methods are: 1) in the same working conditions (speed, load, temperature, etc.) tungsten sheet‍  friction surface mount and damage due severity; 2) friction occurs when occlusal load; 3 ) friction in the friction process, the friction torque (friction coefficient) mutated load; 4) based on the wear of friction and wear test surface morphology microscopic analysis. molybdenum disk‍ Tests mainly in dry friction or lack of lubrication conditions. These methods are the main problems is the state of the dry friction wear mechanism and cylinder - piston ring work is significantly different, the test results of simulations of the poor, lack of lubrication conditions are difficult to control, tungsten weights‍ poor reproducibility of test results.