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(1)油中進(jìn)入空氣或水分，當(dāng)自動(dòng)上料攪拌車的液壓泵把油液轉(zhuǎn)變?yōu)閴毫τ蜁r(shí)，空氣和水分就會(huì)助長(zhǎng)熱的增加而引起過(guò)熱;

(1) Air or moisture enters the oil. When the hydraulic pump of the automatic feeding mixer converts the oil into pressure oil, the air and moisture will contribute to the increase of heat and cause overheating;

(2)容器內(nèi)的油平面過(guò)高，油液被強(qiáng)烈攪動(dòng)，從而引起過(guò)熱;

(2) The oil level in the container is too high, and the oil is stirred strongly, resulting in overheating;

(3)質(zhì)量差的油可能變稀，使外來(lái)物質(zhì)懸浮著，或與水有親合力，這也會(huì)引起生熱;

(3) Poor quality oil may become thin, causing foreign substances to suspend, or have affinity with water, which will also cause heat generation;

(4)工作時(shí)超過(guò)了額定工作能力，因而產(chǎn)生熱;

(4) When working, it exceeds the rated working capacity, thus generating heat;

(5)回油閥調(diào)整不當(dāng)，或未及時(shí)更換已損零件，有時(shí)也會(huì)產(chǎn)生熱。

(5) The oil return valve is improperly adjusted, or the damaged parts are not replaced in time, sometimes heat will be generated.

進(jìn)入空氣油液中進(jìn)入空氣的原因有下列幾種：

There are several reasons for air entering the air oil:

(1)加油時(shí)不適當(dāng)?shù)叵蛳聝A倒，致使有氣泡混入油內(nèi)而帶入管路中;

(1) Improper downward dumping during refueling, resulting in bubbles mixed into the oil and brought into the pipeline;

(2)接頭松了或油封損壞了，空氣被吸入;

(2) The joint is loose or the oil seal is damaged, and the air is sucked in;

(3)吸油管路被磨穿、擦破或腐蝕，因而空氣進(jìn)入。

(3) The oil suction line is worn through, scratched or corroded, so air enters.

空氣進(jìn)入油中除引起過(guò)熱外，也會(huì)有相當(dāng)數(shù)量空氣在壓力下被溶于油內(nèi)。如果被壓縮的體積大約有10%是屬于被溶的空氣，則壓力下降時(shí)便會(huì)形成泡沫。

In addition to overheating caused by air entering the oil, a considerable amount of air will be dissolved in the oil under pressure. If about 10% of the compressed volume belongs to dissolved air, foam will be formed when the pressure drops.

而自動(dòng)上料攪拌車的工作液壓缸在減壓回油時(shí)，帶泡沫的油液就會(huì)形成“海綿”的性質(zhì)。此外，油中含有許多泡沫會(huì)增加總體積，將造成油箱或儲(chǔ)油器的溢油現(xiàn)象。

When the working hydraulic cylinder of the automatic feeding mixer returns oil under reduced pressure, the oil with foam will form a "sponge" property. In addition, the oil contains a lot of foam, which will increase the total volume and cause the oil tank or oil reservoir to overflow.

含有空氣的工作油，在傳遞動(dòng)力時(shí)會(huì)產(chǎn)生急跳的痙攣現(xiàn)象，使動(dòng)力傳遞不均勻，由此產(chǎn)生的壓力波動(dòng)和應(yīng)力，將會(huì)使零部件損壞，嚴(yán)重時(shí)會(huì)導(dǎo)致整個(gè)系統(tǒng)損壞。含有空氣的工作油，還會(huì)造成液壓泵發(fā)生氣穴的危險(xiǎn)，由此而產(chǎn)生更大的吸力，會(huì)把更多的空氣連同其他雜質(zhì)都吸入系統(tǒng)內(nèi)。因油中進(jìn)入空氣而產(chǎn)生過(guò)熱，空氣進(jìn)入的同時(shí)也會(huì)帶進(jìn)灰塵，這些情況會(huì)使油很快變質(zhì)。

The working oil containing air will produce jerky spasm when transmitting power, making the power transmission uneven. The resulting pressure fluctuation and stress will damage the parts and components, and in serious cases, the whole system. The working oil containing air will also cause the risk of cavitation of the hydraulic pump, which will generate greater suction and suck more air and other impurities into the system. The oil will overheat due to the air entering the oil, and the air will also bring in dust at the same time, which will quickly deteriorate the oil.

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