挖掘機低(di)(di)凝(ning)(ning)液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)廠(chang)加多(duo)了有(you)甚么影響(xiang)？低(di)(di)凝(ning)(ning)液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)廠(chang)加多(duo)了大(da)概(gai)會(hui)(hui)對挖掘機造成(cheng)如下幾(ji)點(dian)影響(xiang)：1、低(di)(di)凝(ning)(ning)液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)廠(chang)加多(duo)會(hui)(hui)造成(cheng)挖掘機溫度降(jiang)低(di)(di)，致(zhi)使(shi)液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)體(ti)系(xi)(xi)高(gao)溫。2、低(di)(di)凝(ning)(ning)液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)廠(chang)過多(duo)會(hui)(hui)造成(cheng)低(di)(di)凝(ning)(ning)液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)廠(chang)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)力過大(da)，會(hui)(hui)致(zhi)使(shi)低(di)(di)凝(ning)(ning)液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)廠(chang)管0型圈及液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)部(bu)件密封件破壞。3、低(di)(di)凝(ning)(ning)液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)廠(chang)加多(duo)了會(hui)(hui)加大(da)液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)體(ti)系(xi)(xi)的阻力，事情空間變小，假如低(di)(di)凝(ning)(ning)液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)廠(chang)加注太多(duo)，大(da)概(gai)會(hui)(hui)將低(di)(di)凝(ning)(ning)液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)廠(chang)箱上的透氣濾（放氣閥(fa)）頂壞。咱們(men)要(yao)分明，低(di)(di)凝(ning)(ning)液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)油(you)(you)(you)廠(chang)是應用(yong)液(ye)體(ti)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)力能的液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)體(ti)系(xi)(xi)應用(yong)的液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)介(jie)質，在液(ye)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)體(ti)系(xi)(xi)中起著能量傳遞、抗磨、系(xi)(xi)統潤滑(hua)、防(fang)腐、防(fang)銹(xiu)、冷卻等作(zuo)用(yong)。

低(di)(di)(di)凝液壓(ya)(ya)(ya)油(you)(you)廠(chang)(chang)中存在顆(ke)粒(li)(li)物(wu)(wu)失常嗎？低(di)(di)(di)凝液壓(ya)(ya)(ya)油(you)(you)廠(chang)(chang)中混入過量(liang)的(de)(de)(de)顆(ke)粒(li)(li)物(wu)(wu)會阻塞油(you)(you)濾、擦傷密(mi)封件(jian)、阻塞或磨損元(yuan)件(jian)。但低(di)(di)(di)凝液壓(ya)(ya)(ya)油(you)(you)廠(chang)(chang)在出產進(jin)程及(ji)應用(yong)過程中不可(ke)能(neng)做到沒有顆(ke)粒(li)(li)物(wu)(wu)。當(dang)初我(wo)國(guo)國(guo)度規(gui)范對低(di)(di)(di)凝液壓(ya)(ya)(ya)油(you)(you)廠(chang)(chang)的(de)(de)(de)顆(ke)粒(li)(li)物(wu)(wu)因此“機器雜質”＜0.005％來(lai)操(cao)縱的(de)(de)(de)，外洋多用(yong)美國(guo)宇航局(ju)（NAS）和化構造（ISO）的(de)(de)(de)低(di)(di)(di)凝液壓(ya)(ya)(ya)油(you)(you)廠(chang)(chang)清(qing)潔度級(ji)別來(lai)恒(heng)量(liang)。其液壓(ya)(ya)(ya)控制(zhi)系(xi)統對油(you)(you)品清(qing)潔度的(de)(de)(de)要(yao)求進(jin)行(xing)如下：大(da)間隙低(di)(di)(di)壓(ya)(ya)(ya)液壓(ya)(ya)(ya)系(xi)統：NAS10-12（約(yue)(yue)(yue)ISO19/16-21/18，允(yun)許5粒(li)(li)/ml：約(yue)(yue)(yue)5000-20000粒(li)(li)；15：約(yue)(yue)(yue)640-2500）中高(gao)壓(ya)(ya)(ya)液壓(ya)(ya)(ya)系(xi)統：NAS7-9（>約(yue)(yue)(yue)。ISO16/13-18/15，允(yun)許的(de)(de)(de)顆(ke)粒(li)(li)數≥5μ/ml：約(yue)(yue)(yue)。640-2500；≥15μ：約(yue)(yue)(yue)。80-320）以及(ji)靈敏的(de)(de)(de)伺(si)服高(gao)壓(ya)(ya)(ya)液壓(ya)(ya)(ya)系(xi)統:NAS4-6(約(yue)(yue)(yue)相當(dang)于ISO13﹨﹨u002F10-15﹨﹨u002F12，允(yun)許≥5μ粒(li)(li)子數﹨﹨u002Fml:約(yue)(yue)(yue)80-320；≥15μ:約(yue)(yue)(yue)10—40)今朝我(wo)國(guo)一般(ban)工藝出產的(de)(de)(de)低(di)(di)(di)凝液壓(ya)(ya)(ya)油(you)(you)廠(chang)(chang)一般(ban)只能(neng)達到NAS8-10。

用(yong)油(you)(you)(you)(you)(you)(you)(you)清(qing)洗(xi)(xi)和(he)(he)更換(huan)設(she)(she)(she)(she)備(bei)時應考慮哪些因素？1.環(huan)境(jing)溫(wen)度(du)(du)和(he)(he)污染物(wu)如(ru)果(guo)我們所處的(de)(de)(de)(de)環(huan)境(jing)以及灰塵多(duo)，濕度(du)(du)、溫(wen)度(du)(du)高，將促成氧化(hua)或使(shi)油(you)(you)(you)(you)(you)(you)(you)降級(ji)企業使(shi)用(yong)，增(zeng)加了油(you)(you)(you)(you)(you)(you)(you)的(de)(de)(de)(de)黏度(du)(du)、殘(can)渣和(he)(he)酸性(xing)物(wu)質(zhi)，對設(she)(she)(she)(she)備(bei)可(ke)以產(chan)生影響腐蝕(shi)主要作(zuo)用(yong)。此時所定(ding)的(de)(de)(de)(de)設(she)(she)(she)(she)備(bei)進行清(qing)洗(xi)(xi)換(huan)油(you)(you)(you)(you)(you)(you)(you)的(de)(de)(de)(de)周(zhou)期(qi)(qi)(qi)時間(jian)(jian)(jian)較短(duan)。2.由(you)設(she)(she)(she)(she)備(bei)加工(gong)(gong)過(guo)的(de)(de)(de)(de)工(gong)(gong)作(zuo)部(bu)件(jian)的(de)(de)(de)(de)材(cai)料同一設(she)(she)(she)(she)備(bei)加工(gong)(gong)不同材(cai)料的(de)(de)(de)(de)工(gong)(gong)件(jian)，清(qing)洗(xi)(xi)和(he)(he)更換(huan)油(you)(you)(you)(you)(you)(you)(you)周(zhou)期(qi)(qi)(qi)不同。例如(ru)，鑄(zhu)鐵(tie)工(gong)(gong)件(jian)的(de)(de)(de)(de)頻繁加工(gong)(gong)比普(pu)通金屬(shu)材(cai)料的(de)(de)(de)(de)油(you)(you)(you)(you)(you)(you)(you)周(zhou)期(qi)(qi)(qi)短(duan)，因為(wei)被切斷的(de)(de)(de)(de)鑄(zhu)鐵(tie)粉末(mo)容(rong)易污染油(you)(you)(you)(you)(you)(you)(you)產(chan)品(pin)，并催化(hua)油(you)(you)(you)(you)(you)(you)(you)產(chan)品(pin)的(de)(de)(de)(de)老化(hua)和(he)(he)劣化(hua)。3.設(she)(she)(she)(she)備(bei)的(de)(de)(de)(de)密(mi)封性(xing)密(mi)封性(xing)差，空(kong)(kong)氣(qi)污染物(wu)多(duo)，加工(gong)(gong)過(guo)的(de)(de)(de)(de)金屬(shu)碎片和(he)(he)乳化(hua)液(ye)等容(rong)易進入系統，加速設(she)(she)(she)(she)備(bei)的(de)(de)(de)(de)磨損，為(wei)油(you)(you)(you)(you)(you)(you)(you)短(duan)周(zhou)期(qi)(qi)(qi)。4.設(she)(she)(she)(she)備(bei)運(yun)轉(zhuan)時間(jian)(jian)(jian)如(ru)果(guo)流水線三(san)班倒(dao)，運(yun)行時間(jian)(jian)(jian)長(chang)，清(qing)洗(xi)(xi)換(huan)油(you)(you)(you)(you)(you)(you)(you)時間(jian)(jian)(jian)短(duan)。如(ru)果(guo)開了單(dan)或者使(shi)用(yong)效率不高，清(qing)洗(xi)(xi)換(huan)油(you)(you)(you)(you)(you)(you)(you)周(zhou)期(qi)(qi)(qi)長(chang)。5.油(you)(you)(you)(you)(you)(you)(you)箱注油(you)(you)(you)(you)(you)(you)(you)量空(kong)(kong)中設(she)(she)(she)(she)置裝備(bei)擺設(she)(she)(she)(she)的(de)(de)(de)(de)蕩(dang)滌換(huan)油(you)(you)(you)(you)(you)(you)(you)期(qi)(qi)(qi)，視油(you)(you)(you)(you)(you)(you)(you)箱注油(you)(you)(you)(you)(you)(you)(you)量的(de)(de)(de)(de)幾何而(er)作(zuo)分歧的(de)(de)(de)(de)規定(ding)，因為(wei)注油(you)(you)(you)(you)(you)(you)(you)量越(yue)少(shao)，低凝液(ye)壓(ya)油(you)(you)(you)(you)(you)(you)(you)廠循環(huan)速度(du)(du)越(yue)高，在油(you)(you)(you)(you)(you)(you)(you)箱中停(ting)留時間(jian)(jian)(jian)短(duan)，散熱條件(jian)差，油(you)(you)(you)(you)(you)(you)(you)溫(wen)高。6.大(da)修后的(de)(de)(de)(de)新(xin)(xin)設(she)(she)(she)(she)備(bei)由(you)于(yu)新(xin)(xin)加工(gong)(gong)表面(mian)與新(xin)(xin)零(ling)點匹配的(de)(de)(de)(de)摩擦表面(mian)具有一定(ding)的(de)(de)(de)(de)粗糙(cao)度(du)(du)，因此在開始操作(zuo)期(qi)(qi)(qi)間(jian)(jian)(jian)，實際接觸(chu)面(mian)積小，每(mei)單(dan)位接觸(chu)面(mian)積的(de)(de)(de)(de)壓(ya)力大(da)，并且磨損速度(du)(du)和(he)(he)磨損量大(da)。因此，運(yun)行3個月后，油(you)(you)(you)(you)(you)(you)(you)應改(gai)為(wei)油(you)(you)(you)(you)(you)(you)(you)，然后按(an)正常規定(ding)將油(you)(you)(you)(you)(you)(you)(you)改(gai)為(wei)油(you)(you)(you)(you)(you)(you)(you)。7.油(you)(you)(you)(you)(you)(you)(you)品(pin)質(zhi)量油(you)(you)(you)(you)(you)(you)(you)品(pin)質(zhi)優良，使(shi)用(yong)壽命長(chang)，清(qing)洗(xi)(xi)周(zhou)期(qi)(qi)(qi)長(chang)。低凝液(ye)壓(ya)油(you)(you)(you)(you)(you)(you)(you)廠改(gai)換(huan)時候周(zhou)期(qi)(qi)(qi)一般為(wei)9~12個月。

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