小型混凝土攪拌車(chē)液壓系統的發(fā)熱，直接影響攪拌車(chē)的正常工作，發(fā)熱現象所造成的危害，主要有以下幾點(diǎn)：

The heating of the hydraulic system of the small concrete mixer directly affects the normal operation of the mixer. The main hazards caused by the heating phenomenon are as follows:

(1)工作液體的溫度升高后，使工作液體的黏度下降，泵的泄漏增加，泵的實(shí)際流量有所下降;

(1) When the temperature of the working liquid increases, the viscosity of the working liquid decreases, the leakage of the pump increases, and the actual flow of the pump decreases;

(2)液壓系統及元件的密封件在高溫下變質(zhì)，彈性變性能力降低，使密封性能降低，甚密封失效，使泄漏增加;

(2) The seals of the hydraulic system and components deteriorate under high temperature, and the elastic denaturation ability is reduced, which reduces the sealing performance, even the sealing failure, and increases the leakage;

(3)當液壓閥件的閥芯、閥體材料不同、熱膨脹系數不同時(shí)，閥芯、閥體之間因熱膨脹而出現閥芯卡死現象，致使小型混凝土攪拌車(chē)不能工作;

(3) When the material of valve core and valve body of hydraulic valve is different, and the coefficient of thermal expansion is different, the valve core and valve body are stuck due to thermal expansion, resulting in the small concrete mixer can not work;

(4)工作液體的黏度下降時(shí)，使工作液體的潤滑性能降低，液壓元件的磨損加快，加速了元件的磨損失效，縮短了元件的使用壽命。

(4) When the viscosity of the working fluid decreases, the lubricating performance of the working fluid decreases, the wear of the hydraulic components accelerates, the wear failure of the components is accelerated, and the service life of the components is shortened.

為了盡量避免上述現象的發(fā)生，有些小型混凝土攪拌車(chē)在使用一定時(shí)間后，不得不停下來(lái)，使系統降溫，從而降低了小型混凝土攪拌車(chē)的開(kāi)機率，影響了施工進(jìn)度。因此，應針對系統發(fā)熱原因，采取相應措施，控制液壓系統的溫度，保證混凝土攪拌車(chē)的正常使用。更多相關(guān)內容就來(lái)我們網(wǎng)站http://www.jqeq.cn咨詢(xún)吧！

In order to avoid the above phenomena as much as possible, some small concrete mixers have to stop after a certain period of use to cool the system, thus reducing the start-up rate of small concrete mixers and affecting the construction progress. Therefore, corresponding measures should be taken to control the temperature of the hydraulic system and ensure the normal use of the concrete mixer truck according to the heating causes of the system. Come to our website for more relevant content http://www.jqeq.cn Ask!