Because components are all affected by the presence of particles suspended in the fluid, you need to reduce wear and tear of components. IFTS has all necessary test benches for measuring wear in all type of active components: pumps, valves regulators,distributors…  Some of the test benches are the unique facilities in Europe. We are the expert you can rely on for defining the maximum level of contamination acceptable for your components.

 
  由于零部件时刻会受到分布在液体中的杂质颗粒的影响,你需要减少杂质对于零部件的磨损。 IFTS拥有所有必须的试验设备,可用于测试各种活动零部件的磨损,如:泵、调节阀、分配器等… 其中一些在欧洲是独一无二的。IFTS 能为您的系统部件定义最大可接受的杂质水平,我们是这方面的专家,是您值得信赖的合作伙伴。
 
Wear Tear Test Samples   Wear Tear Test Facilities
 
These kind of wear and tear tests are aim at defining both the maximum concentration and the maximum particle size of contaminants that are acceptable in the fluid flowing through the component in given operating conditions to guarantee its proper functions. This post will summarize the principles. IFTS act as a fully independent lab with 30 years experiences, we will be glad to provide our test services to worldwide customers with our world recognized expertise and excellent facilities.
 
  这类磨损试验的目的是在于定于出零部件在给定的操作工况下所能够接受的最大的杂质浓度和最大杂质颗粒尺寸,以保证发挥其本身应有的功能。IFTS作为一家有着30年经验的完全独立的第三方实验室,我们很乐意用我们世界公认的经验和优良的设施为全球客户提供优质的测试服务。本文将对磨损测试的方法做个简单概述。
 
The principles can be summarised as follows:
磨损测试的基本原理可以总结如下:
 
  1. Run the component with clean fluid and measure its operational characteristics. These may be a consumed power at a given flow rate and downstream pressure, a downstream flow rate and pressure at a given rotational speed, a current intensity or a yield with a given fluid at a given viscosity and temperature or any other mechanical characteristic defined by the customer and representative of the operation of the component. By measuring them with clean fluid, we quantify the “baseline” of the component without contamination.

    使被测零部件在清洁的流体环境下运行并测量其工作性能参数。可以是在给定的流量和下游压力下的功耗,在给定的转速下的下游流量和压力,在给定的液体粘度和温度下的电流强度或电流量,或者其他由客户所定义的能代表被测零部件特性的机械性能参数。通过在清洁的操作环境下测量这些参数,我们将其定义为被测零部件在不含杂质工况下的“基线”。
     
  2. Then we run the same tests in the same conditions but with particles of increasing size and/or increasing concentration for a given number of hours or number of cycles. During the test we continuously record all operating conditions and functional characteristics of the component to see any evolution with time.

    然后我们在相同的环境下进行相同的测试,但是会在定义好的小时数和循环数内增加杂质浓度和杂质颗粒。在试验的过程中, 我们持续地记录所有操作环境参数和被测零部件的功能性参数,并评估其随时间的推移所发生的变化。
     
  3. After the test in known “dirty conditions”, we can perform a test with clean fluid to quantify any variation of the parameters measured initially.

    进行了“脏环境”下的测试后,我们可以再使用清洁的液体,让样品在干净环境里进行测试,看看与最初测得的参数相比是否发生了变化。
     
  4. Experience shows that for all components we have tested, it can be defined a maximum concentration and/or particle size for which nothing detectable happen (no change of values, yield, leakage, flow decay, energy consumption increase…); a range of values (size/concentration) for which a quantifiable change occurred and a set of values over which a strong damage (breakdown, blockage, …) occurred.

    经验表明,所有我们测试过的零部件,都可以定义出一个其所能接受的最大浓度 和/或 最大颗粒尺寸(不改变其性能数值,产量,泄漏量,流量衰减,能源消耗增加等…)、一系列能带来可量化的改变发生的数值范围(杂质颗粒尺寸/浓度)以及一组能使得样品造成强烈损坏(断裂,堵塞等…)的数值。
     
  5. The results obtained in lab conditions can be extrapolated to real life by calculating the number of particles of given sizes passed through the component before a given failure occurred.

    在实验室环境下得到的结果可以用来通过计算给定大小的杂质通过被测样品的数目来推测在真实环境下被测样品的寿命。
     
  6. The conclusions are the definition of a minimum requirement on the rating of a protection (last chance) filter or of a maximum ISO 4406 or NAS 1638 or ISO 11218 contamination level or class acceptable for the component tested or for the system it is installed on.

    这样测试的结论可以用来定义对于用于保护(最后一道)的过滤器的过滤精度的最低要求,或依据ISO 4406或NAS 1638或ISO 11218标准来评估该零部件将被安装到系统所能接受的最大的杂质水平或等级。

 

For these kind of tests, which are long term tests since we have to simulate the life of a component (thousands of hours in real life shortened to hundred of hours in the lab by multiplying the particle concentration by the same ration of (real life/lab simulation) hours), our customers are component manufacturers or fluid system manufacturers of automotive and aerospace sectors (TURBOMECA, PSA, ROLLS ROYCE, SNECMA, BOSCH, GRUNDFOSS, …)

对于这样的测试,由于我们必须要模拟零部件的全寿命,因此会是一个长时间的测试(将数千小时的真实寿命通过增加杂质浓度来缩减为数百小时的实验室寿命)。我们的客户包括汽车工业和航空航天工业方面的零部件生产商或液压动力系统制造商。(TURBOMECA, PSA, ROLLS ROYCE, SNECMA, BOSCH, GRUNDFOSS, 等等……)

In some case, the number of parameters to follow up and analyse is so large or complex, that the customer installs its own acquisition system on IFTS test bench. We have been able to perform tests on automotive fuel feed pumps over 2800 hours or aircraft land gear system over 380 hours with more than 25 parameters recorded at the same time.

在有些案例中,需要跟踪和分析的参数的数量非常多或者非常复杂,有些客户会选择将他们自己的数据采集系统安装到IFTS的试验设备上。我们已经能够为一些汽车燃油泵进行超过2800小时的测试或者航天器着陆齿轮传动系统进行超过380小时的测试,试验过程中我们同时记录超过25个参数。

 

Remarks: IFTS has created most of the international standards for the measurement, expression and management of cleanliness in components and fluid systems for industries, including: Automotive (ISO 16232); Aeronautical (ISO 11218, NFL 41 102); Hydraulic (ISO 18413, ISO TS 10686)

备注:IFTS 负责起草并建立了大部分清洁度方面的国际测量标准,广泛应用于各种工业零部件及燃油系统清洁度检测方面,包括:汽车方面(ISO 16232);航空航天方面(ISO 11218、NFL 41 102);液压方面(ISO 18413, ISO TS 10686)。

Download the leaflet about the Wear and Tear of Component Tests: English Version, Chinese Version;

下载零部件磨损试验相关的介绍资料:英文版中文版