How do changes in the coefficient of friction affect the service life of copper bushing?

The change of friction coefficient has the following important effects on the service life of copper bushings:

First, Wear aspects

Increased wear:

When the coefficient of friction increases, the friction between the copper bushing and the mating parts increases accordingly. In the process of relative motion, greater friction will lead to increased wear on the surface of the copper bushing.

Wear may manifest itself in the form of surface scratches, deepened grooves, and material removal. As wear accumulates, the size and shape of the bushing will change and the fit precision will be reduced, thus affecting the normal operation of the equipment.

For example, if the coefficient of friction increases from the normal 0.15 to 0.25, the wear rate of the bushing may increase several times. Copper bushings that may last for years may need to be replaced in a relatively short period of time due to excessive wear.

Reduced wear:

Conversely, when the coefficient of friction is lowered, the friction is reduced and the wear of the copper bushing is reduced accordingly. This helps to extend the service life of the copper bushing.

For example, when the coefficient of friction is reduced by optimizing the lubrication conditions or by using special surface treatment techniques, the wear of the copper bushing is significantly slowed down and the service life is extended.

Second, heat generation

Temperature rise accelerates aging:

Changes in the coefficient of friction will affect the heat generated by the copper bushing in the working process. When the coefficient of friction increases, the friction increases, more mechanical energy is converted into heat, resulting in increased temperature of the copper bushing.

High temperature will accelerate the aging of the copper bushing material, so that its hardness, strength and other properties decline, but also affect the performance of the lubricant, further aggravate the wear.

For example, the coefficient of friction increases, resulting in the temperature of the copper bushing from the normal operating temperature of 50 ℃ to 80 ℃, high temperature will make the hardness of the copper bushing material to reduce the wear and tear, shorten the service life.

Temperature stabilization is conducive to life:

When the coefficient of friction is reduced, the heat generated is reduced and the temperature of the copper bushing is relatively stable. This helps to maintain the performance of the copper bushing material and the lubrication effect of the lubricant, thus extending the service life of the copper bushing.

For example, after reducing the coefficient of friction by improving the lubrication conditions, the temperature of the copper bushing is kept at a low level, the material performance is stable, and the service life can be extended.

Third, vibration and noise

Increase vibration and noise to shorten the life:

Changes in the coefficient of friction will also affect the vibration and noise level of the equipment. When the coefficient of friction is unstable or increased, the friction fluctuation between the copper bushing and the mating parts increases, easily causing vibration and noise of the equipment.

Strong vibration and noise will not only affect the working environment of the equipment and the health of the operator, but also cause additional stress on the copper bushing and other components, accelerating fatigue damage and shortening the service life of the copper bushing.

For example, the increase in friction coefficient leads to a significant increase in equipment vibration and noise, the copper bushing is easy to fatigue cracks under the action of vibration, the service life is greatly shortened.

Reduce vibration and noise to extend life:

On the contrary, when the coefficient of friction is stable and low, the vibration and noise level of the equipment is lower. This helps to reduce the stress on the copper bushing and other components and extends the service life of the bushing.

For example, after reducing the coefficient of friction by optimizing the design and selecting suitable materials, the equipment runs smoothly with less vibration and noise, and the service life of the copper bushing is extended.

In summary, the change of friction coefficient has a significant impact on the service life of copper bushing. In practical application, the friction coefficient should be controlled within a reasonable range as far as possible to extend the service life of the copper bushing and improve the reliability and stability of the equipment.