自上料搅拌车是生产混凝土重要的设备,好多人在使用时不注意保养,用着用着就发现自上料搅拌车运行效率降低,却不知道是什么原因?造成自上料搅拌车运行效率降低的主要原因有一下方面:
Self loading mixer truck is an important equipment for concrete production. Many people do not pay attention to maintenance when using it. When using it, they find that the operation efficiency of self loading mixer truck is reduced, but they don't know why? The main reasons for the reduction of the operation efficiency of the self loading mixer are as follows:
1.滤芯与油液的相容性。自上料搅拌车中既包含有金属过滤元件,也有占大多数的非金属过滤元件.它们都存在着是否能与系统中油液相容的问题。其中包括化学变化与热效应变化的相容问题。尤其是在高温条件下能否不受影响更为重要。因此,各种过滤元件都需要在高温下进行油液相容性试验。
1. Compatibility between filter element and oil. The self loading mixer contains both metal filter elements and most non-metallic filter elements. They all have the problem of compatibility with the oil in the system. This includes the compatibility between chemical changes and thermal effects. In particular, whether it can not be affected under high temperature conditions is more important. Therefore, all kinds of filter elements need to be tested for oil compatibility at high temperature.
2.低温工作的影响。系统在低温下工作也对自上料搅拌车有不利的影响。因为在低温时,过滤元件中有些非金属材料会变得更脆弱;而且在低温时,油液黏度的大会引起压力降升高非常容易引起介质材料产生裂缝。
2. Impact of low temperature operation. The operation of the system at low temperature also has an adverse impact on the self loading mixer. Because at low temperature, some non-metallic materials in the filter element will become more fragile; Moreover, at low temperature, the increase of pressure drop caused by the general assembly of oil viscosity is very easy to cause cracks in medium materials.
3.油液的周期性流动。系统中的油液流动通常都是不稳定的。在流量发生变化时,会引起滤芯的弯曲变形。在有周期性流动的情况下,由于滤芯介质材料的多次反复变形,会引起材料的疲劳破坏形成疲劳裂缝。使用自上料搅拌车时要养成良好的习惯,定期保养。
3. Periodic flow of oil. The oil flow in the system is usually unstable. When the flow rate changes, it will cause the bending deformation of the filter element. In the case of periodic flow, the repeated deformation of the medium material of the filter element will cause the fatigue failure of the material and form fatigue cracks. When using the self loading mixer, form a good habit and maintain it regularly.
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