The self feeding mixer truck is an important equipment for producing concrete. Many people do not pay attention to maintenance when using it, and they find that the operating efficiency of the self feeding mixer truck decreases when using it, but they do not know what the reason is? The main reasons for the decrease in operating efficiency of self feeding mixer trucks are as follows:

1.濾芯與油液的相容性。自上料攪拌車中既包含有金屬過濾元件，也有占大多數(shù)的非金屬過濾元件．它們都存在著是否能與系統(tǒng)中油液相容的問題。其中包括化學(xué)變化與熱效應(yīng)變化的相容問題。尤其是在高溫條件下能否不受影響更為重要。因此，各種過濾元件都必須在高溫下進(jìn)行油液相容性試驗(yàn)。

1. Compatibility between filter element and oil. The self feeding mixer truck contains both metal filtration components and the majority of non-metallic filtration components, both of which have compatibility with the oil in the system. This includes the compatibility issue between chemical changes and thermal effects. Especially under high temperature conditions, it is more important to be unaffected. Therefore, various filtering elements must undergo oil compatibility tests at high temperatures.

2.低溫工作的影響。系統(tǒng)在低溫下工作也對自上料攪拌車有不利的影響。因?yàn)樵诘蜏貢r(shí)，過濾元件中有些非金屬材料會變得更脆弱；而且在低溫時(shí)，油液黏度的增大會引起壓力降升高，極易引起介質(zhì)材料產(chǎn)生裂縫。

2. The impact of low-temperature operation. The system's operation at low temperatures also has adverse effects on the self feeding mixer truck. Because at low temperatures, some non-metallic materials in the filter elements become more fragile; Moreover, at low temperatures, an increase in oil viscosity can cause an increase in pressure drop, which can easily cause cracks in the medium material.

3.油液的周期性流動(dòng)。系統(tǒng)中的油液流動(dòng)通常都是不穩(wěn)定的。在流量發(fā)生變化時(shí)，會引起濾芯的彎曲變形。在有周期性流動(dòng)的情況下，由于濾芯介質(zhì)材料的多次反復(fù)變形，會引起材料的疲勞破壞形成疲勞裂縫。使用自上料攪拌車時(shí)要養(yǎng)成良好的習(xí)慣，定期保養(yǎng)。

3. Periodic flow of oil. The oil flow in the system is usually unstable. When the flow rate changes, it can cause the filter element to bend and deform. In the case of periodic flow, the repeated deformation of the filter medium material can cause fatigue damage and form fatigue cracks. When using self feeding mixer trucks, it is important to develop good habits and maintain them regularly.

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