Determination of wear limit for construction machinery parts

工程机械零件 磨损 极限的确定方法

When the wear of the carbon brush reaches to the limit the wear limit alarm device can timely remind the user of replacing the carbon brush so the non-normal damage of the machine is avoided .

本实用新型在碳刷 磨损达到 极限时，可以及时提醒用户更换碳刷，避免了机器非正常损坏。

In order to increase reliability of anti-superheat operation and anti-gnawing wear that is to have higher limit axial capacity it is necessary that forming oil film which can carry load on contact areas .

为了提高抗过热运转和咬蚀 磨损的可靠性，即具有较高的 极限轴向承载能力，在接触点处形成具有承载能力的润滑油膜是必须的。

Research of wear limit of diesel engine cylinder

柴油机气缸套 磨损 极限的研究

Higher drilling temperature will not only exacerbate the wear rate of the tool then limit productivity but also affect the performance of the tool workpiece machinedsurface ' quality and reduce machining accuracy .

钻削温度过高时不仅会加剧刀具的 磨损速度， 限制生产率，还会影响刀具工件的性能、加工表面质量等，降低加工精度。

If friction is not minimized excessive heat and wear will severely limit the life and usefulness of machines .

过多的摩擦会产生过多的热量和 磨损，从而严重 限制机器的寿命和性能。

Based on this the theory of the safety limit wear angle was put forward ; and the safety limit wear angle was obtained .

提出了安全极限 磨损角理论，计算求出了安全 极限磨损角；

Wear limit of diesel engine cylinder can be measured by maximum permissible diameter increment and maximum permissible ovality . Maximum permissible diameter increment is the cheif wear .

气缸套的 磨损 极限是以最大容许直径增量和最大容许椭圆度来衡量的，最大容许直径增量是主要磨损。

Firstly according to standard wear limit original data were transformed into BOOL value .

首先依据各种分析方法的标准 磨损 界限 值，将原始数据进行了预处理，统一转换成故障征兆的布尔值；

Talking about wear limit standard of wooden processing jig

试论机加工夹具 磨损 极限标准

Passive 1 : N splitter in use will cause serious wear and tear ( for example the introduction of a 1:32 of the splitter insertion / split loss greater than 17dB ) and to limit the length of the connection can be achieved .

无源1：N分路器的使用会带来严重的 损耗（例如一个1：32的分路器引入插入／分割损耗大于17dB）并且 限制了可达到的连接长度。

The wear loading limit and sliding speed limit of PTFE composites were respectively one tenth 110 % and 160 % that of PTFE .

负荷 极限和滑行速度极限分别是纯PTFE的110%和 160%；

And there are front wheel wandering and abnormal front wheel tyre wear for those vehicles whose front wheel side skidding is within the required limit etc.

以及某些车辆前轮 侧滑量符合要求，却仍出现前轮方向发飘、轮胎异常 磨损等现象；

However during the long-term application process oxidation wear and wear debris accumulation easily lead to osteolysis and aseptic loosening which increase the suffering of patients and limit the longevity of artificial joints .

然而，在长期的应用过程中，氧化、磨损以及 磨屑积聚，易引起骨质溶解，发生无菌松动，从而加重了患者的痛苦， 降低了人工关节的使用寿命。

The Application of High Temperature Wear and Corrosion Protection Coating Technology in Thermocouple Cannula A method for dynamic measurement of thermocouples protected by metal tube is developed and by using it we can greatly raise the upper limit value of thermocouples .

高温 耐磨蚀涂层防护技术在热电偶保护套管上的应用本文提出了采用带保护管热电偶的一种动态测温方法，可大大提高普通热电偶的测温 上限。

However the poor wear resistance and mechanical properties of Magnesium alloys limit its application .

但镁合金也因其 耐磨性能和力学性能较差而 制约了其应用。

The experiments include wear test crystallinity test coefficient of thermal expansion test DSC test and PV limit test .

对 烧结试样进行了 摩擦 磨损实验、结晶度分析、热膨胀性能分析、DSC热物理性能分析和 极限PV 值测定。

Comparatively test-rig test will be economic and quick . It is easy to test the effects of each factor influencing wheel-rail wear . At the same time limit working condition can be reached on test-rig .

试验台试验经济快捷，便于单独测试各因素对轮轨 磨耗的影响，同时，试验可以达到各种 极限工况。

However their poor wear resistance low hardness and especially be oxidized at high temperatures which limit their applications .

然而，钛合金的一些突出弱点如硬度低， 耐磨性差，特别是高温下易氧化 限制了其应用范围。

However PTFE has poor wear resistance low strength poor thermal conductivity and ease to creep and other shortcomings so limit the application of PTFE in practice .

但是，同时具有不 耐磨、低强度、导热性差和易蠕变等缺点，这就 限制了PTFE在实际中的应用。

They propose instead that women wear sensible shoes with an inch heel limit in an attempt to avoid future foot and back pain as well as injuries .

他们建议女性 穿着高度合理的鞋子，鞋跟不要 超过一英寸，从而避免导致脚部和背部疼痛及损伤。