As an important part in the automation industry, linear guide rail is required to be waterproof and dustproof in many cases. Can linear guide rail be?

直線導軌是可以在有水的環境中使用的，因為在使用直線導軌時，無可避免地要和水接觸（空氣中也有水蒸氣），加工、車床等，通常都需要用到水，那么直線導軌上添加的導軌油遇水會分解，油會流到切削液，直線導軌切削液會被污染，這時候解決直線導軌分水性能是非常重要的，常用的方法就是在直線導軌上面加防水護罩，但是在不必要的情況下，我們通常不建議在水多的環境中使用直線導軌。

The linear guide rail can be used in the environment with water, because when using the linear guide rail, it is inevitable to contact with water (there is also water vapor in the air). Water is usually required for machining centers and lathes, so the guide rail oil added on the linear guide rail will decompose in case of water, the oil will flow to the cutting fluid, and the linear guide rail cutting fluid will be polluted, At this time, it is very important to solve the water separation performance of the linear guide rail. The common method is to add a waterproof shield on the linear guide rail. However, under unnecessary circumstances, we usually do not recommend using the linear guide rail in a watery environment.

使用直線導軌要考慮到的問題主要有以下幾種：

The following problems should be considered when using linear guide rail:

是直線導軌的生銹，不純水有腐蝕性，雖然有不銹鋼直線導軌，但是不銹鋼也不能完全做到防銹蝕，再加上直線導軌經常做摩擦運動，滾動體和導軌肯定有磨損，直線導軌磨損的地方更容易生銹。

The first is the rust of the linear guide rail. Impure water is corrosive. Although there is a stainless steel linear guide rail, the stainless steel can not completely prevent rust. In addition, the linear guide rail often makes friction movement, the rolling element and guide rail must be worn, and the worn parts of the linear guide rail are more likely to rust.

其次，直線導軌在使用時添加潤滑劑，直線導軌要想保證滑塊速度、精度、使用壽命，要按時按量添加直線導軌專用潤滑劑，當直線導軌滑塊在水中浸潤運動時，水會進入直線導軌滑塊內部，導致直線導軌滑塊膨脹，此外，直線導軌滾動體旋轉速度快，也很容易造成直線導軌滑塊損壞的問題。

Secondly, add lubricant when using the linear guide. In order to ensure the speed, accuracy and service life of the slider, add special lubricant for the linear guide on time and in quantity. When the linear guide slider soaks in the water, the water will enter the linear guide slider, causing the linear guide slider to expand. In addition, the rolling body of the linear guide rotates fast, It is also easy to cause damage to the sliding block of the linear guide rail.

直線導軌滑塊浸入水中會受到水的阻力、沖擊力，所以在安裝直線導軌之前要考慮并計算好水對直線導軌運動速度的影響以及水沖擊和障礙物引起的振動也要考慮。

The sliding block of linear guide rail will be subject to the resistance and impact force of water when immersed in water, so the influence of water on the moving speed of linear guide rail and the vibration caused by water impact and obstacles should be considered and calculated before installing linear guide rail.

綜上所述，從直線導軌使用材料來說，無論是不銹鋼直線導軌還是軸承鋼直線導軌都不能完全做到防生銹，可以通過添加防水護罩的方式來保護直線導軌延遲直線導軌的生銹；一般如果不是必要，我們不建議在水多的環境中使用直線導軌。

To sum up, in terms of the materials used for the linear guide, neither the stainless steel linear guide nor the bearing steel linear guide can completely prevent rust. The linear guide can be protected by adding a waterproof shield to delay the rust of the linear guide; Generally, if it is not necessary, we do not recommend the use of linear guide rail in water environment.