流体污染控制：需要了解的内容

超过 70% 的系统故障是由流体中的污染物引起的。即使没有立即出现明显的故障，也可能会出现高污染水平，并在眨眼间急剧降低液压控制。

污染被定义为制造设备中的任何异物并损害其性能。

污染可能以以下形式存在：

• 固体

• 液体（例如水）

• 气态（例如空气）

• 凝胶状（即像清漆一样的油降解）

Over 70% of all system failures are caused by contaminants in the fluid. Even when no immediate failures are apparent, high contamination levels can be present and sharply decrease hydraulic controls in the blink of an eye.

Contamination is defined as any substance foreign to the manufacturing equipment and damaging to its performance.

Contamination can exist as:

• solid

• liquid (i.e. water)

• gaseous (i.e. air)

• gel-like (i.e. oil degradation like varnish)

Watch on Tencent “Fluid Contamination Control: What You Need To Know”.

固体污染会导致密封表面和表面磨损，从而导致外部空气和湿气进入泄漏点，还可能导致摩擦引起的局部热降解。

固体污染物通常称为颗粒污染物，有各种尺寸和形状，通常会磨损液压系统中的主要部件。

在这种磨料质量下，高污染物水平会加速部件磨损并缩短液压供给和使用寿命。

磨损的部件反过来会导致：

• 液压机械运行效率低下

• 液压部件卡死（如液压泵、液压缸、液压马达）

• 更高的流体温度

• 泄漏

• 失控

Solid contamination can lead to worn sealing surfaces and surfaces that cause leaking points for external air and moisture ingression and can also lead to friction-induced localized thermal degradation.

Solid contamination, generally referred to as particulate contamination, comes in all sizes and shapes and is normally abrasive to major components in the hydraulic system.

With this abrasive quality, a high contaminant level accelerates component wear and decreases the hydraulic supply and service life.

Worn components, in turn, contribute to:

• Inefficient hydraulic machine operation

• Seizure of hydraulic parts (such as hydraulic pumps, cylinders, and hydraulic motors)

• Higher fluid temperatures

• Leakage

• Loss of control

所有这些现象都是污染物和机器部件之间直接机械作用的结果。

除固体污染外，还有三 (3) 种其他类型的污染物会造成流体污染。分别是：

• 液体污染会加速液体老化过程和漆膜的生成，或导致金属部件出现腐蚀点蚀，从而在内部产生固体金属颗粒污染。

• 气体污染会引起空化和柴油效应，从而可能导致颗粒污染和局部热降解。

• 凝胶状污染可能是加速老化、润滑性能改变和不足导致颗粒生成增加以及化学反应形成水的根本原因。

污染物还可以充当催化剂，加速流体的氧化并刺激其成分的化学分解。

All these phenomena are a result of direct mechanical action between contaminants and machine components.

Aside from solid contamination, there are three (3) other types of contaminates responsible for fluid contamination. They are:

• Liquid contamination can accelerate the fluid aging process and generation of varnish or cause corrosive pitting of metallic components and therefore internally generate solid metallic particle contamination.

• Gaseous contamination can cause cavitation and dieseling effects which may lead to particle contamination and local thermal degradation.

• Gel-like contamination can be a root cause of accelerated aging, increased particle generation via changing and inadequate lubrication properties, as well as the formation of water from chemical reactions.

Contamination can also act as a catalyst to accelerate oxidation of the fluid and spur the chemical breakdown of its constituents.

什么是液压和润滑油过滤？

What is Hydraulic and Lube Filtration?

液压和润滑油过滤是解决污染物问题的优质选择。

Hydraulic and Lube Filtration is the perfect candidate for combatting issues with contaminates.

通过对工作液采用过滤技术，它将去除上述许多污染物并延长系统组件（也在上面提到）的使用寿命。

过滤组的作用是确保油品保持性能。

过滤过程有助于去除油系统中的污染物并持续调节流体。它还确保油的粘度特性在所需的温度范围内保持恒定。

By utilizing filter technology for your operating fluid, it will remove many of the contaminates mentioned above and extend the life of the system components (also mentioned above).

Filtration groups, such as the ones shown in the photo located at the top of this page, do the job of making sure oil properties remain at their best.

The filtration process helps remove contamination from oil systems and conditions the fluid on a continuous basis. It also ensures the oil viscosity properties remain constant per the desired temperature ranges.

Watch on Tencent “The 7 Steps to Choosing the Correct Filtration”.