Automatic feeding mixer is widely used in construction sites, which belongs to a kind of special vehicle. With the development of society, self feeding mixer is more and more widely used. When many big cars start in winter, they first let the engine ring for a while, and then start driving. This is called hot car. Why do self feeding mixer need hot car?

一般情況下，專(zhuān)用車(chē)的發(fā)動(dòng)機(jī)的正常使用溫度在85℃-95℃之間，當(dāng)發(fā)動(dòng)機(jī)在這個(gè)溫度的時(shí)候，其它各部分的配合間隙正好在設(shè)計(jì)的范圍內(nèi)，燃燒室內(nèi)的燃燒狀態(tài)好，發(fā)動(dòng)機(jī)的熱效率和各方面性能處于好狀態(tài)，如果低于這個(gè)溫度，那屬于發(fā)動(dòng)機(jī)過(guò)冷，這會(huì)對(duì)發(fā)動(dòng)機(jī)的使用壽命造成很大的影響的。

In general, the normal operating temperature of the engine of a special vehicle is between 85 ℃ and 95 ℃. When the engine is at this temperature, the fit clearance of other parts is just within the design range. The combustion state in the combustion chamber is good, and the thermal efficiency and all aspects of performance of the engine are in a good state. If it is lower than this temperature, it belongs to the engine supercooling, which will affect the performance of the engine Service life has a great impact.

經(jīng)研究表明，發(fā)動(dòng)機(jī)的磨損在80%是發(fā)生在冷啟動(dòng)的一瞬間，發(fā)動(dòng)機(jī)在低溫時(shí)的磨損是正常工作溫度的6倍；發(fā)動(dòng)機(jī)在40℃-50℃時(shí)，發(fā)動(dòng)機(jī)的磨損增加60%-80%，功率降低25%，油耗增加8%-10%，機(jī)油的性能衰減也更快，如果是在氣溫比較低的北方，自動(dòng)上料攪拌機(jī)的熱車(chē)時(shí)間將會(huì)更長(zhǎng)。

The research shows that 80% of the engine wear occurs at the moment of cold start, and the engine wear at low temperature is 6 times of the normal working temperature; when the engine is at 40 ℃ - 50 ℃, the engine wear increases by 60% - 80%, the power decreases by 25%, the fuel consumption increases by 8% - 10%, and the performance of the engine oil decays faster. If it is in the north where the air temperature is relatively low, the warm-up time of the automatic feeding mixer is shorter It will be longer.
             

自拌混凝土攪拌機(jī)，低溫除了影響發(fā)動(dòng)機(jī)外，還會(huì)對(duì)其它方面的性能造成影響，比如低溫會(huì)導(dǎo)致電瓶容量大幅度下降，車(chē)輛啟動(dòng)困難；還可能會(huì)導(dǎo)致輪胎變硬、變脆，與地面的附著力降低，車(chē)輛的操控性下降，減震器的油液粘度增加，緩沖吸振的能力會(huì)下降，車(chē)輛就會(huì)發(fā)生異響，乘坐的舒服性就會(huì)下降；變速箱的油的粘度變大，造成換擋困難。

For self mixing concrete mixer, low temperature not only affects the engine, but also affects the performance of other aspects. For example, low temperature will lead to a substantial decline in battery capacity and difficulty in starting the vehicle; it may also lead to hardening and embrittlement of tires, reduction of adhesion to the ground, reduction of vehicle handling, increase of oil viscosity of shock absorber, reduction of shock absorption capacity and reduction of vehicle stability There will be abnormal noise, and the ride comfort will be reduced; the viscosity of the oil in the gearbox will become larger, which will make it difficult to shift.

現(xiàn)在的很多的混凝土攪拌運(yùn)輸車(chē)會(huì)安裝節(jié)溫器、使用風(fēng)扇離合器或者電子風(fēng)扇、自動(dòng)調(diào)節(jié)開(kāi)度的百葉窗、內(nèi)置式排氣管等等，來(lái)緩解低溫對(duì)發(fā)動(dòng)機(jī)造成傷害。但是在低溫狀態(tài)下熱車(chē)還是非常有必要的，熱車(chē)的時(shí)間也要適當(dāng)，一般在一分鐘左右就差不多了。

Now many concrete mixer trucks will install thermostat, use fan clutch or electronic fan, automatically adjust the opening of the shutter, built-in exhaust pipe and so on, to alleviate the low temperature damage to the engine. However, it is necessary to heat up the car at low temperature. The time of heating up the car should be appropriate, generally about one minute.

感謝您的閱讀，希望以上內(nèi)容對(duì)您有所幫助，如想了解更多資訊內(nèi)容請(qǐng)點(diǎn)擊：自動(dòng)上料攪拌機(jī)http://www.wishnailspa.com

Thank you for reading, hope the above content is helpful to you, for more information, please click: automatic feeding mixer http://www.wishnailspa.com