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2020
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如果真(zhen)空泵(beng)裝(zhuang)(zhuang)置中(zhong)(zhong)(zhong)的(de)零(ling)件(jian)(jian)(jian)被污(wu)染了怎么(me)辦?有(you)(you)(you)(you)(you)什么(me)好的(de)清(qing)(qing)潔方法嗎?今天(tian)，真(zhen)空泵(beng)會給你分享一(yi)些清(qing)(qing)潔技巧，朋友(you)應(ying)該記住它們! 一(yi)、真(zhen)空泵(beng)裝(zhuang)(zhuang)置中(zhong)(zhong)(zhong)清(qing)(qing)潔技巧之(zhi)溶(rong)(rong)劑(ji)去(qu)油(you)(you) 附著在(zai)零(ling)件(jian)(jian)(jian)上(shang)的(de)油(you)(you)脂(zhi)分為兩類(lei):礦(kuang)物(wu)(wu)(wu)油(you)(you)和(he)動(dong)植(zhi)(zhi)(zhi)物(wu)(wu)(wu)油(you)(you)。礦(kuang)物(wu)(wu)(wu)油(you)(you)可以(yi)(yi)用(yong)(yong)有(you)(you)(you)(you)(you)機(ji)溶(rong)(rong)劑(ji)除(chu)去(qu)，動(dong)植(zhi)(zhi)(zhi)物(wu)(wu)(wu)油(you)(you)可以(yi)(yi)用(yong)(yong)堿(jian)溶(rong)(rong)液(ye)除(chu)去(qu)。然而，事(shi)實上(shang)，兩種類(lei)型(xing)的(de)油(you)(you)脂(zhi)經常同時存在(zai)，因此在(zai)清(qing)(qing)洗(xi)過程中(zhong)(zhong)(zhong)經常連續使(shi)用(yong)(yong)幾(ji)種不同的(de)溶(rong)(rong)劑(ji)。 1、堿(jian)液(ye)去(qu)油(you)(you) 當(dang)零(ling)件(jian)(jian)(jian)浸泡在(zai)堿(jian)液(ye)中(zhong)(zhong)(zhong)時，由(you)于堿(jian)液(ye)和(he)油(you)(you)脂(zhi)的(de)化(hua)學作用(yong)(yong)，動(dong)植(zhi)(zhi)(zhi)物(wu)(wu)(wu)油(you)(you)轉(zhuan)化(hua)可以(yi)(yi)是(shi)(shi)脂(zhi)肪酸(suan)(suan)鹽(皂化(hua))，可以(yi)(yi)溶(rong)(rong)解在(zai)水(shui)中(zhong)(zhong)(zhong)，從而使(shi)零(ling)件(jian)(jian)(jian)能夠去(qu)除(chu)油(you)(you)脂(zhi)。從脫脂(zhi)溶(rong)(rong)液(ye)中(zhong)(zhong)(zhong)取出(chu)后(hou)，應(ying)立即用(yong)(yong)溫水(shui)徹底清(qing)(qing)洗(xi)金(jin)屬(shu)部(bu)件(jian)(jian)(jian)，然后(hou)用(yong)(yong)冷水(shui)清(qing)(qing)洗(xi)。如果金(jin)屬(shu)表面沒有(you)(you)(you)(you)(you)被水(shui)浸濕(shi)(有(you)(you)(you)(you)(you)水(shui)滴)，這意味(wei)著油(you)(you)污(wu)沒有(you)(you)(you)(you)(you)完全清(qing)(qing)除(chu)，應(ying)該再次處(chu)理(li)。 2、有(you)(you)(you)(you)(you)機(ji)溶(rong)(rong)劑(ji)去(qu)油(you)(you) 有(you)(you)(you)(you)(you)機(ji)溶(rong)(rong)劑(ji)可溶(rong)(rong)解礦(kuang)物(wu)(wu)(wu)油(you)(you)、動(dong)植(zhi)(zhi)(zhi)物(wu)(wu)(wu)油(you)(you)，并可與(yu)堿(jian)液(ye)一(yi)起(qi)用(yong)(yong)于除(chu)油(you)(you)。常見的(de)有(you)(you)(you)(you)(you)機(ji)溶(rong)(rong)劑(ji)包括三氯乙(yi)烯(xi)、四(si)氯乙(yi)烯(xi)、汽油(you)(you)、乙(yi)醚等。水(shui)是(shi)(shi)各種無機(ji)物(wu)(wu)(wu)和(he)其他物(wu)(wu)(wu)質的(de)良好溶(rong)(rong)劑(ji)。由(you)于自(zi)來(lai)水(shui)含有(you)(you)(you)(you)(you)更多(duo)的(de)氯離子，通常用(yong)(yong)加熱(re)(re)的(de)自(zi)來(lai)水(shui)清(qing)(qing)洗(xi)。當(dang)要(yao)求較高時，可使(shi)用(yong)(yong)蒸餾(liu)水(shui)或去(qu)離子水(shui)，電鍍和(he)酸(suan)(suan)堿(jian)腐蝕后(hou)的(de)零(ling)件(jian)(jian)(jian)通常用(yong)(yong)流動(dong)熱(re)(re)水(shui)清(qing)(qing)洗(xi)。 第二，真(zhen)空泵(beng)裝(zhuang)(zhuang)置中(zhong)(zhong)(zhong)清(qing)(qing)潔技巧之(zhi)酸(suan)(suan)堿(jian)蝕刻處(chu)理(li) 除(chu)油(you)(you)后(hou)，進行(xing)刻蝕處(chu)理(li)，去(qu)除(chu)金(jin)屬(shu)表面的(de)氧(yang)化(hua)物(wu)(wu)(wu)。熱(re)(re)處(chu)理(li)后(hou)，零(ling)件(jian)(jian)(jian)上(shang)不再有(you)(you)(you)(you)(you)油(you)(you)污(wu)，可以(yi)(yi)直(zhi)接進行(xing)刻蝕處(chu)理(li)，去(qu)除(chu)退火后(hou)的(de)氧(yang)化(hua)層(ceng)。蝕刻處(chu)理(li)通常在(zai)酸(suan)(suan)性溶(rong)(rong)液(ye)中(zhong)(zhong)(zhong)進行(xing)。大多(duo)數金(jin)屬(shu)氧(yang)化(hua)物(wu)(wu)(wu)和(he)金(jin)屬(shu)本身可以(yi)(yi)與(yu)適當(dang)濃度的(de)酸(suan)(suan)溶(rong)(rong)液(ye)反應(ying)。氧(yang)化(hua)物(wu)(wu)(wu)與(yu)酸(suan)(suan)反應(ying)生成鹽和(he)水(shui)。金(jin)...
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水(shui)(shui)(shui)環真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)機(ji)組(zu)(zu)(zu)(zu)在(zai)(zai)(zai)應(ying)用中常常會(hui)遭受水(shui)(shui)(shui)蒸汽(qi)(qi)(qi)的(de)(de)浸蝕(shi)(shi)(shi)(shi)，這(zhe)就(jiu)(jiu)是我們(men)平(ping)常說(shuo)的(de)(de)氣(qi)蝕(shi)(shi)(shi)(shi)狀況，如果不留意會(hui)給(gei)它導(dao)(dao)致挺大的(de)(de)損(sun)壞(huai)，危(wei)害工作效(xiao)能，此次(ci)就(jiu)(jiu)給(gei)大伙兒(er)小結了(le)氣(qi)蝕(shi)(shi)(shi)(shi)的(de)(de)緣故及預(yu)防(fang)，一起來(lai)掌握一下(xia)(xia)(xia)。 1、水(shui)(shui)(shui)環真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)機(ji)組(zu)(zu)(zu)(zu)長期性(xing)(xing)超(chao)負(fu)荷(he)運(yun)行(xing)(xing)(xing)(xing);夏天冷卻循環水(shui)(shui)(shui)溫度(du)(du)較高(gao)(gao)或(huo)制冷出水(shui)(shui)(shui)量過(guo)小造(zao)(zao)(zao)(zao)成(cheng) 熱交(jiao)換(huan)器(qi)制冷實際效(xiao)果差，水(shui)(shui)(shui)環真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)則會(hui)在(zai)(zai)(zai)高(gao)(gao)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)下(xia)(xia)(xia)運(yun)行(xing)(xing)(xing)(xing)，等(deng)于貼(tie)近(jin)或(huo)處在(zai)(zai)(zai)悶死情況下(xia)(xia)(xia)運(yun)行(xing)(xing)(xing)(xing); 2、因為具(ju)有的(de)(de)物理(li)知識(shi)，在(zai)(zai)(zai)溫度(du)(du)一定的(de)(de)標準下(xia)(xia)(xia)，真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)越高(gao)(gao)，溫度(du)(du)越高(gao)(gao)，泵(beng)(beng)(beng)內的(de)(de)水(shui)(shui)(shui)貼(tie)近(jin)燒開(kai)(kai)并(bing)(bing)會(hui)造(zao)(zao)(zao)(zao)成(cheng)很多的(de)(de)汽(qi)(qi)(qi)泡，汽(qi)(qi)(qi)泡的(de)(de)造(zao)(zao)(zao)(zao)成(cheng)與裂開(kai)(kai)全(quan)過(guo)程會(hui)對離(li)心葉輪導(dao)(dao)致汽(qi)(qi)(qi)蝕(shi)(shi)(shi)(shi)毀壞(huai)，毀壞(huai)離(li)心葉輪的(de)(de)轉子動平(ping)衡，造(zao)(zao)(zao)(zao)成(cheng)泵(beng)(beng)(beng)殼的(de)(de)明顯(xian)震動，振壞(huai)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)的(de)(de)附設機(ji)器(qi)設備，并(bing)(bing)且(qie)會(hui)傳出十分大的(de)(de)汽(qi)(qi)(qi)蝕(shi)(shi)(shi)(shi)噪音，這(zhe)種情況比較嚴重危(wei)害了(le)水(shui)(shui)(shui)環真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)機(ji)組(zu)(zu)(zu)(zu)的(de)(de)安全(quan)性(xing)(xing)運(yun)行(xing)(xing)(xing)(xing)和汽(qi)(qi)(qi)輪發電機(ji)組(zu)(zu)(zu)(zu)的(de)(de)安全(quan)性(xing)(xing)運(yun)行(xing)(xing)(xing)(xing); 3、要(yao)(yao)處理(li)汽(qi)(qi)(qi)蝕(shi)(shi)(shi)(shi)難題(ti)，減少(shao)溫度(du)(du)成(cheng)本(ben)費很大，減少(shao)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)度(du)(du)也就(jiu)(jiu)是讓(rang)凝(ning)汽(qi)(qi)(qi)器(qi)背壓升高(gao)(gao)那(nei)樣更不太可能，這(zhe)將比較嚴重危(wei)害機(ji)組(zu)(zu)(zu)(zu)的(de)(de)帶負(fu)載(zai)工作能力，理(li)想化的(de)(de)方法(fa)是在(zai)(zai)(zai)塬溫度(du)(du)、系統軟件(jian)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)不會(hui)改變的(de)(de)狀況下(xia)(xia)(xia)會(hui)處理(li)汽(qi)(qi)(qi)蝕(shi)(shi)(shi)(shi)的(de)(de)造(zao)(zao)(zao)(zao)成(cheng); 4、現階段(duan)比較好的(de)(de)挑選就(jiu)(jiu)是說(shuo)給(gei)水(shui)(shui)(shui)環真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)機(ji)組(zu)(zu)(zu)(zu)改裝空(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)霧化噴嘴，全(quan)部(bu)抽汽(qi)(qi)(qi)特性(xing)(xing)會(hui)更好，因而(er)凝(ning)汽(qi)(qi)(qi)器(qi)的(de)(de)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)仍可確保現階段(duan)水(shui)(shui)(shui)準或(huo)高(gao)(gao)些(xie)，但(dan)內部(bu)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)度(du)(du)僅在(zai)(zai)(zai)12Kpa(這(zhe)時系統軟件(jian)真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)在(zai)(zai)(zai)3-8Kpa范(fan)疇以內)，那(nei)樣可合理(li)防(fang)止汽(qi)(qi)(qi)蝕(shi)(shi)(shi)(shi)的(de)(de)造(zao)(zao)(zao)(zao)成(cheng)。 水(shui)(shui)(shui)環真(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)機(ji)組(zu)(zu)(zu)(zu)假如出現氣(qi)蝕(shi)(shi)(shi)(shi)難題(ti)，我們(men)要(yao)(yao)依(yi)據(ju)不一樣的(de)(de)狀況來(lai)開(kai)(kai)展不一樣的(de)(de)解(jie)決(jue)，因而(er)我們(men)在(zai)(zai)(zai)解(jie)決(jue)困難以前，要(yao)(yao)先...
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水(shui)環(huan)式(shi)(shi)真(zhen)(zhen)空(kong)(kong)泵(beng)維(wei)(wei)修時(shi)，假(jia)如(ru)碰(peng)到(dao)(dao)真(zhen)(zhen)空(kong)(kong)泵(beng)不(bu)可(ke)以抽至極(ji)(ji)限(xian)(xian)(xian)(xian)真(zhen)(zhen)空(kong)(kong)值，最先(xian)查驗(yan)超濾(lv)裝(zhuang)置的(de)(de)密(mi)封(feng)性(xing)，看(kan)是(shi)不(bu)是(shi)有輕度(du)漏(lou)汽(qi)。次之，開啟氣(qi)(qi)鎮(zhen)，泵(beng)運作(zuo)約30min，排(pai)出(chu)來非油(you)(you)(you)(you)(you)(you)泵(beng)環(huan)境污染(ran)導(dao)(dao)(dao)(dao)(dao)(dao)致(zhi)的(de)(de)可(ke)壓縮蒸氣(qi)(qi)，清(qing)除(chu)可(ke)壓縮蒸氣(qi)(qi)對極(ji)(ji)限(xian)(xian)(xian)(xian)真(zhen)(zhen)空(kong)(kong)值的(de)(de)危害。清(qing)除(chu)所述2個(ge)要素后，真(zhen)(zhen)空(kong)(kong)泵(beng)不(bu)可(ke)以做(zuo)到(dao)(dao)極(ji)(ji)限(xian)(xian)(xian)(xian)真(zhen)(zhen)空(kong)(kong)值的(de)(de)關(guan)鍵(jian)緣(yuan)故包含下(xia)列好多個(ge)層面(mian)： 水(shui)環(huan)式(shi)(shi)真(zhen)(zhen)空(kong)(kong)泵(beng)維(wei)(wei)修時(shi)若是(shi)發覺油(you)(you)(you)(you)(you)(you)泵(beng)環(huan)境污染(ran)，必須(xu)換(huan)(huan)機(ji)(ji)油(you)(you)(you)(you)(you)(you);泵(beng)內油(you)(you)(you)(you)(you)(you)過濾(lv)器阻塞，導(dao)(dao)(dao)(dao)(dao)(dao)致(zhi)燃油(you)(you)(you)(you)(you)(you)管不(bu)暢，縮小油(you)(you)(you)(you)(you)(you)泵(beng)系(xi)統軟件(jian)提供(gong)的(de)(de)油(you)(you)(you)(you)(you)(you)不(bu)夠(gou)，導(dao)(dao)(dao)(dao)(dao)(dao)致(zhi)泵(beng)殼密(mi)封(feng)性(xing)關(guan)不(bu)緊。這(zhe)時(shi)，必須(xu)清(qing)理內部機(ji)(ji)油(you)(you)(you)(you)(you)(you)濾(lv)芯。真(zhen)(zhen)空(kong)(kong)泵(beng)維(wei)(wei)修時(shi)發覺達不(bu)上極(ji)(ji)限(xian)(xian)(xian)(xian)真(zhen)(zhen)空(kong)(kong)值，可(ke)能是(shi)因(yin)(yin)為(wei)分油(you)(you)(you)(you)(you)(you)器閘閥(fa)形(xing)變、損壞(huai)或(huo)毀壞(huai)，也將會(hui)導(dao)(dao)(dao)(dao)(dao)(dao)致(zhi)提供(gong)的(de)(de)油(you)(you)(you)(you)(you)(you)不(bu)夠(gou)。在這(zhe)類狀況(kuang)下(xia)，應(ying)查驗(yan)并(bing)更換(huan)(huan)機(ji)(ji)油(you)(you)(you)(you)(you)(you)調節器的(de)(de)閘閥(fa)。 水(shui)環(huan)式(shi)(shi)真(zhen)(zhen)空(kong)(kong)泵(beng)的(de)(de)長期(qi)性(xing)應(ying)用(yong)將導(dao)(dao)(dao)(dao)(dao)(dao)致(zhi)轉動盤的(de)(de)損壞(huai)或(huo)電機(ji)(ji)轉子中(zhong)的(de)(de)彈黃(huang)支撐力(li)不(bu)夠(gou)，這(zhe)將導(dao)(dao)(dao)(dao)(dao)(dao)致(zhi)吸(xi)(xi)進(jin)室(shi)和(he)(he)排(pai)出(chu)來室(shi)中(zhong)間(jian)的(de)(de)防護(hu)關(guan)不(bu)緊，進(jin)而(er)導(dao)(dao)(dao)(dao)(dao)(dao)致(zhi)真(zhen)(zhen)空(kong)(kong)泵(beng)的(de)(de)真(zhen)(zhen)空(kong)(kong)泵(beng)吸(xi)(xi)特性(xing)降低。因(yin)(yin)而(er)在真(zhen)(zhen)空(kong)(kong)泵(beng)維(wei)(wei)修時(shi)要拆換(huan)(huan)輪(lun)盤和(he)(he)彈黃(huang)，并(bing)清(qing)理電機(ji)(ji)轉子和(he)(he)泵(beng)室(shi)。查驗(yan)自動排(pai)氣(qi)(qi)閥(fa)，看(kan)其姿勢是(shi)不(bu)是(shi)不(bu)成功，導(dao)(dao)(dao)(dao)(dao)(dao)致(zhi)排(pai)氣(qi)(qi)管欠佳。如(ru)必須(xu)，拆換(huan)(huan)自動排(pai)氣(qi)(qi)閥(fa)。 水(shui)環(huan)式(shi)(shi)真(zhen)(zhen)空(kong)(kong)泵(beng)維(wei)(wei)修中(zhong)普遍(bian)的(de)(de)漏(lou)油(you)(you)(you)(you)(you)(you)常見故障之一關(guan)鍵(jian)產生在真(zhen)(zhen)空(kong)(kong)泵(beng)的(de)(de)油(you)(you)(you)(you)(you)(you)窗(chuang)(chuang)、汽(qi)車(che)油(you)(you)(you)(you)(you)(you)箱密(mi)封(feng)墊片和(he)(he)電動機(ji)(ji)軸(zhou)承水(shui)泵(beng)密(mi)封(feng)處。關(guan)鍵(jian)緣(yuan)故是(shi)這(zhe)種零件(jian)的(de)(de)老化和(he)(he)真(zhen)(zhen)空(kong)(kong)泵(beng)使用(yong)時(shi)間(jian)長導(dao)(dao)(dao)(dao)(dao)(dao)致(zhi)的(de)(de)密(mi)封(feng)性(xing)無(wu)效導(dao)(dao)(dao)(dao)(dao)(dao)致(zhi)漏(lou)油(you)(you)(you)(you)(you)(you)。油(you)(you)(you)(you)(you)(you)窗(chuang)(chuang)漏(lou)油(you)(you)(you)(you)(you)(you)是(shi)因(yin)(yin)為(wei)真(zhen)(zhen)空(kong)(kong)泵(beng)使用(yong)時(shi)間(jian)長導(dao)(dao)(dao)(dao)(dao)(dao)致(zhi)油(you)(you)(you)(you)(you)(you)窗(chuang)(chuang)老化，導(dao)(dao)(dao)(dao)(dao)(dao)致(zhi)裂開，或(huo)是(shi)油(you)(you)(you)(you)(you)(you)窗(chuang)(chuang)與汽(qi)車(che)油(you)(you)(you)(you)(you)(you)箱中(zhong)間(jian)的(de)(de)黏合劑老化無(wu)效，導(dao)(dao)(dao)(dao)(dao)(dao)致(zhi)油(you)(you)(you)(you)(you)(you)泵(beng)泄露。 在水(shui)環(huan)式(shi)(shi)真(zhen)(zhen)空(kong)(kong)泵(beng)維(wei)(wei)修全過程中(zhong)，...
2020
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伴隨(sui)著(zhu)工業(ye)生(sheng)(sheng)產技術(shu)性(xing)(xing)的(de)(de)(de)持續(xu)發展趨(qu)勢，真(zhen)空(kong)(kong)技術(shu)在(zai)(zai)生(sheng)(sheng)產制(zhi)造(zao)(zao)中(zhong)(zhong)獲得了(le)更(geng)為(wei)普遍的(de)(de)(de)運用(yong)(yong)。因(yin)(yin)為(wei)水(shui)(shui)(shui)(shui)環(huan)(huan)(huan)真(zhen)空(kong)(kong)泵(beng)(beng)具備構造(zao)(zao)簡(jian)易(yi)(yi)、加(jia)工精度低、占地小(xiao)、工作(zuo)中(zhong)(zhong)轉(zhuan)速比(bi)高(gao)、實際操作(zuo)維護保養簡(jian)易(yi)(yi)及其適應力(li)強等優(you)勢，有益于加(jia)工廠的(de)(de)(de)產業(ye)化(hua)生(sheng)(sheng)產制(zhi)造(zao)(zao)，在(zai)(zai)開(kai)(kai)采、塬(yuan)油、電力(li)工程(cheng)、制(zhi)藥業(ye)等生(sheng)(sheng)產制(zhi)造(zao)(zao)行(xing)業(ye)比(bi)較(jiao)普遍。殊(shu)不(bu)知在(zai)(zai)生(sheng)(sheng)產制(zhi)造(zao)(zao)應用(yong)(yong)全過程(cheng)中(zhong)(zhong)，水(shui)(shui)(shui)(shui)環(huan)(huan)(huan)真(zhen)空(kong)(kong)泵(beng)(beng)較(jiao)非(fei)常容(rong)易(yi)(yi)出(chu)現(xian)危害(hai)設(she)備平(ping)穩(wen)、高(gao)效(xiao)率(lv)運行(xing)的(de)(de)(de)故障(zhang)，比(bi)如出(chu)入支氣(qi)管道存水(shui)(shui)(shui)(shui)、不(bu)可(ke)以一切(qie)正常起(qi)動或啟動噪(zao)聲過大、機械(xie)泵(beng)(beng)幅度不(bu)夠、總流量(liang)不(bu)夠這些，必須(xu)開(kai)(kai)展剖析和處(chu)理。 1.水(shui)(shui)(shui)(shui)環(huan)(huan)(huan)真(zhen)空(kong)(kong)泵(beng)(beng)原理 水(shui)(shui)(shui)(shui)環(huan)(huan)(huan)真(zhen)空(kong)(kong)泵(beng)(beng)在(zai)(zai)起(qi)動后，泵(beng)(beng)內(nei)(nei)(nei)的(de)(de)(de)液體會(hui)(hui)依靠(kao)葉(xie)旋旋轉(zhuan)造(zao)(zao)成(cheng)的(de)(de)(de)向心力(li)在(zai)(zai)泵(beng)(beng)中(zhong)(zhong)產生(sheng)(sheng)轉(zhuan)動液環(huan)(huan)(huan)，因(yin)(yin)為(wei)水(shui)(shui)(shui)(shui)環(huan)(huan)(huan)真(zhen)空(kong)(kong)泵(beng)(beng)的(de)(de)(de)葉(xie)輪(lun)被軸力(li)安裝在(zai)(zai)泵(beng)(beng)腔(qiang)(qiang)內(nei)(nei)(nei)，葉(xie)輪(lun)輪(lun)圈與水(shui)(shui)(shui)(shui)環(huan)(huan)(huan)內(nei)(nei)(nei)表層在(zai)(zai)泵(beng)(beng)腔(qiang)(qiang)上端產生(sheng)(sheng)圓的(de)(de)(de)切(qie)線，在(zai)(zai)泵(beng)(beng)腔(qiang)(qiang)下邊相觸碰。在(zai)(zai)前半轉(zhuan)，伴隨(sui)著(zhu)葉(xie)子與水(shui)(shui)(shui)(shui)環(huan)(huan)(huan)中(zhong)(zhong)間的(de)(de)(de)密封(feng)性(xing)(xing)室內(nei)(nei)(nei)空(kong)(kong)間慢慢擴大，產生(sheng)(sheng)數個內(nei)(nei)(nei)腔(qiang)(qiang)，汽(qi)(qi)體從(cong)分(fen)派板吸口(kou)(kou)吸進(jin)。放前半轉(zhuan)，密封(feng)性(xing)(xing)內(nei)(nei)(nei)壁(bi)容(rong)量(liang)會(hui)(hui)慢慢減(jian)(jian)少，室內(nei)(nei)(nei)空(kong)(kong)間內(nei)(nei)(nei)汽(qi)(qi)體被縮(suo)小(xiao)并由分(fen)派板的(de)(de)(de)出(chu)氣(qi)口(kou)(kou)排出(chu)來(lai)。添(tian)加(jia)的(de)(de)(de)液體為(wei)凝補水(shui)(shui)(shui)(shui)保濕，不(bu)但可(ke)以產生(sheng)(sheng)液環(huan)(huan)(huan)，還可(ke)以減(jian)(jian)少汽(qi)(qi)體縮(suo)小(xiao)造(zao)(zao)成(cheng)的(de)(de)(de)熱發熱量(liang)，對(dui)分(fen)派板與葉(xie)輪(lun)內(nei)(nei)(nei)孔空(kong)(kong)隙開(kai)(kai)展密封(feng)性(xing)(xing)。在(zai)(zai)水(shui)(shui)(shui)(shui)環(huan)(huan)(huan)真(zhen)空(kong)(kong)泵(beng)(beng)運作(zuo)全過程(cheng)中(zhong)(zhong)因(yin)(yin)為(wei)一部分(fen)切(qie)削液會(hui)(hui)隨(sui)汽(qi)(qi)體排出(chu)來(lai)，必須(xu)項機械(xie)泵(beng)(beng)內(nei)(nei)(nei)接連供電。泵(beng)(beng)內(nei)(nei)(nei)不(bu)容(rong)易(yi)(yi)造(zao)(zao)成(cheng)金(jin)屬(shu)材料磨(mo)擦，因(yin)(yin)而在(zai)(zai)應用(yong)(yong)全過程(cheng)中(zhong)(zhong)不(bu)用(yong)(yong)潤化(hua)，使用(yong)(yong)期(qi)較(jiao)長(chang)。除此之外，水(shui)(shui)(shui)(shui)環(huan)(huan)(huan)真(zhen)空(kong)(kong)泵(beng)(beng)結構緊湊、轉(zhuan)速比(bi)高(gao)、實際操作(zuo)簡(jian)易(yi)(yi)、縮(suo)小(xiao)溫度差轉(zhuan)變小(xiao)，能夠抽采易(yi)(yi)燃(ran)易(yi)(yi)爆物品汽(qi)(qi)體。殊(shu)不(bu)知...
2020
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09
真(zhen)(zhen)空(kong)泵(beng)(beng)維修(xiu)全過(guo)程中(zhong)，零(ling)(ling)部件(jian)(jian)(jian)的(de)(de)(de)(de)(de)(de)精(jing)(jing)度(du)以(yi)及(ji)品(pin)質(zhi)對(dui)(dui)(dui)液(ye)(ye)壓柱(zhu)塞(sai)泵(beng)(beng)維修(xiu)后(hou)的(de)(de)(de)(de)(de)(de)性(xing)(xing)(xing)能至關(guan)重要(yao)，對(dui)(dui)(dui)于此事維修(xiu)工(gong)作(zuo)人(ren)(ren)員一(yi)定要(yao)對(dui)(dui)(dui)機械(xie)(xie)系統(tong)以(yi)及(ji)基本(ben)原理(li)并(bing)不(bu)(bu)(bu)(bu)是(shi)掌握，另(ling)外留意其(qi)零(ling)(ling)件(jian)(jian)(jian)中(zhong)間的(de)(de)(de)(de)(de)(de)精(jing)(jing)度(du)及(ji)配(pei)(pei)合尺寸，由(you)于不(bu)(bu)(bu)(bu)一(yi)樣的(de)(de)(de)(de)(de)(de)品(pin)質(zhi)的(de)(de)(de)(de)(de)(de)零(ling)(ling)配(pei)(pei)件(jian)(jian)(jian)以(yi)及(ji)規(gui)格型號精(jing)(jing)度(du)都對(dui)(dui)(dui)液(ye)(ye)壓柱(zhu)塞(sai)泵(beng)(beng)拼裝(zhuang)后(hou)的(de)(de)(de)(de)(de)(de)性(xing)(xing)(xing)能造(zao)成重特(te)大(da)的(de)(de)(de)(de)(de)(de)危害(hai)。 現階段真(zhen)(zhen)空(kong)泵(beng)(beng)零(ling)(ling)配(pei)(pei)件(jian)(jian)(jian)銷售(shou)市場上(shang)(shang)產(chan)品(pin)品(pin)質(zhi)與精(jing)(jing)度(du)良莠不(bu)(bu)(bu)(bu)齊，一(yi)些(xie)顧客(ke)以(yi)便(bian)控制(zhi)成本(ben)，運用(yong)毫無道理(li)的(de)(de)(de)(de)(de)(de)塬材料(liao)零(ling)(ling)配(pei)(pei)件(jian)(jian)(jian)取代，長期(qi)性(xing)(xing)(xing)運作(zuo)對(dui)(dui)(dui)液(ye)(ye)壓柱(zhu)塞(sai)泵(beng)(beng)性(xing)(xing)(xing)能極其(qi)不(bu)(bu)(bu)(bu)好，因(yin)而(er)在(zai)(zai)(zai)拆換零(ling)(ling)配(pei)(pei)件(jian)(jian)(jian)前，零(ling)(ling)配(pei)(pei)件(jian)(jian)(jian)必(bi)須歷經技術(shu)性(xing)(xing)(xing)查(cha)驗，保(bao)證新零(ling)(ling)配(pei)(pei)件(jian)(jian)(jian)品(pin)質(zhi)符合規(gui)定，避(bi)免其(qi)造(zao)成多余(yu)的(de)(de)(de)(de)(de)(de)不(bu)(bu)(bu)(bu)便(bian)。 真(zhen)(zhen)空(kong)泵(beng)(beng)維修(xiu)工(gong)作(zuo)人(ren)(ren)員在(zai)(zai)(zai)工(gong)程機械(xie)(xie)設(she)備的(de)(de)(de)(de)(de)(de)維修(xiu)全過(guo)程中(zhong)，要(yao)在(zai)(zai)(zai)了解真(zhen)(zhen)空(kong)技術(shu)構(gou)造(zao)和基本(ben)原理(li)的(de)(de)(de)(de)(de)(de)基本(ben)上(shang)(shang)，對(dui)(dui)(dui)故(gu)(gu)(gu)障(zhang)(zhang)(zhang)緣(yuan)故(gu)(gu)(gu)開展剖(pou)析，不(bu)(bu)(bu)(bu)可以(yi)盲目(mu)得對(dui)(dui)(dui)故(gu)(gu)(gu)障(zhang)(zhang)(zhang)緣(yuan)故(gu)(gu)(gu)得出(chu)結論，導致新的(de)(de)(de)(de)(de)(de)難(nan)題的(de)(de)(de)(de)(de)(de)出(chu)現。根(gen)據(ju)故(gu)(gu)(gu)障(zhang)(zhang)(zhang)剖(pou)析，不(bu)(bu)(bu)(bu)但能夠(gou)分辨故(gu)(gu)(gu)障(zhang)(zhang)(zhang)的(de)(de)(de)(de)(de)(de)特(te)性(xing)(xing)(xing)和緣(yuan)故(gu)(gu)(gu)，更關(guan)鍵的(de)(de)(de)(de)(de)(de)是(shi)能夠(gou)根(gen)據(ju)梳理(li)故(gu)(gu)(gu)障(zhang)(zhang)(zhang)，明確提(ti)出(chu)合理(li)的(de)(de)(de)(de)(de)(de)整改(gai)措施。當發覺真(zhen)(zhen)空(kong)泵(beng)(beng)不(bu)(bu)(bu)(bu)夠(gou)時，不(bu)(bu)(bu)(bu)查(cha)故(gu)(gu)(gu)障(zhang)(zhang)(zhang)緣(yuan)故(gu)(gu)(gu)，盲目(mu)調高(gao)系統(tong)軟件(jian)(jian)(jian)的(de)(de)(de)(de)(de)(de)壓力(li)，導致毀壞骨架密(mi)封、管道、液(ye)(ye)壓件(jian)(jian)(jian)等(deng)。這種不(bu)(bu)(bu)(bu)靠(kao)譜(pu)的(de)(de)(de)(de)(de)(de)維修(xiu)方(fang)式(shi)在(zai)(zai)(zai)緊急的(de)(de)(de)(de)(de)(de)狀況(kuang)下是(shi)能夠(gou)的(de)(de)(de)(de)(de)(de)，但不(bu)(bu)(bu)(bu)能長期(qi)性(xing)(xing)(xing)應用(yong)，務必(bi)從源頭(tou)上(shang)(shang)查(cha)出(chu)來故(gu)(gu)(gu)障(zhang)(zhang)(zhang)緣(yuan)故(gu)(gu)(gu)，采用(yong)靠(kao)譜(pu)的(de)(de)(de)(de)(de)(de)維修(xiu)方(fang)式(shi)清(qing)除(chu)故(gu)(gu)(gu)障(zhang)(zhang)(zhang)。因(yin)而(er)，在(zai)(zai)(zai)故(gu)(gu)(gu)障(zhang)(zhang)(zhang)剖(pou)析時，從故(gu)(gu)(gu)障(zhang)(zhang)(zhang)狀況(kuang)下手(shou)，融合工(gong)業(ye)設(she)備的(de)(de)(de)(de)(de)(de)原理(li)和構(gou)造(zao)，根(gen)據(ju)檢測(ce)儀器(qi)或是(shi)用(yong)傳統(tong)式(shi)的(de)(de)(de)(de)(de)(de)故(gu)(gu)(gu)障(zhang)(zhang)(zhang)分辨方(fang)式(shi)，最(zui)后(hou)來明確故(gu)(gu)(gu)障(zhang)(zhang)(zhang)產(chan)生的(de)(de)(de)(de)(de)(de)緣(yuan)故(gu)(gu)(gu)和位置，切(qie)勿“不(bu)(bu)(bu)(bu)問青紅(hong)皂白，盲目(mu)大(da)拆大(da)卸”。剖(pou)析出(chu)故(gu)(gu)(gu)障(zhang)(zhang)(zhang)之后(hou)，就必(bi)須人(ren)(ren)們維修(xiu)工(gong)作(zuo)人(ren)(ren)員采用(yong)恰當合理(li)的(de)(de)(de)(de)(de)(de)方(fang)式(shi)對(dui)(dui)(dui)機器(qi)設(she)備...
2020
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一、離(li)心泵(beng)(beng)泵(beng)(beng)軸(zhou)(zhou) 1、查驗(yan)(yan)(yan)泵(beng)(beng)軸(zhou)(zhou)，泵(beng)(beng)軸(zhou)(zhou)應(ying)(ying)(ying)(ying)(ying)無(wu)(wu)裂(lie)(lie)痕，比較(jiao)嚴重損(sun)壞(huai)(huai)等(deng)(deng)(deng)缺(que)(que)點(dian)(dian)。如現(xian)有損(sun)壞(huai)(huai)、裂(lie)(lie)痕、沖蝕等(deng)(deng)(deng)，應(ying)(ying)(ying)(ying)(ying)詳(xiang)盡紀錄，并(bing)剖(pou)析其(qi)緣故。 2、檢驗(yan)(yan)(yan)泵(beng)(beng)軸(zhou)(zhou)平行度(du)，其(qi)值(zhi)在總長應(ying)(ying)(ying)(ying)(ying)該不超(chao)0.05mm。電動機軸(zhou)(zhou)表(biao)(biao)(biao)面(mian)(mian)不可有黑(hei)點(dian)(dian)、管溝(gou)等(deng)(deng)(deng)缺(que)(que)點(dian)(dian)，表(biao)(biao)(biao)面(mian)(mian)表(biao)(biao)(biao)面(mian)(mian)粗糙度(du)的較(jiao)大(da)(da) 控(kong)制(zhi)值(zhi)為(wei)0.8μm，電動機軸(zhou)(zhou)同心度(du)和(he)圓柱度(du)偏差(cha)應(ying)(ying)(ying)(ying)(ying)低(di)于(yu)0.02mm。 3、健槽(cao)軸(zhou)(zhou)線對軸(zhou)(zhou)軸(zhou)(zhou)線平面(mian)(mian)度(du)偏差(cha)應(ying)(ying)(ying)(ying)(ying)低(di)于(yu)0.03mm/100。 二、離(li)心泵(beng)(beng)葉輪(lun) 1、清(qing)理并(bing)查驗(yan)(yan)(yan)各(ge)個葉輪(lun)表(biao)(biao)(biao)面(mian)(mian)，葉輪(lun)表(biao)(biao)(biao)面(mian)(mian)應(ying)(ying)(ying)(ying)(ying)無(wu)(wu)裂(lie)(lie)痕、損(sun)壞(huai)(huai)等(deng)(deng)(deng)缺(que)(que)點(dian)(dian)，葉輪(lun)流道表(biao)(biao)(biao)面(mian)(mian)應(ying)(ying)(ying)(ying)(ying)光潔(jie)(jie)，且無(wu)(wu)積垢(gou)、毛邊(bian)，葉子應(ying)(ying)(ying)(ying)(ying)無(wu)(wu)裂(lie)(lie)痕、侵蝕減薄等(deng)(deng)(deng)缺(que)(que)點(dian)(dian)。 2、查驗(yan)(yan)(yan)各(ge)個葉輪(lun)吸進口(kou)和(he)排(pai)出入口(kou)密(mi)(mi)封(feng)環(huan)(huan)，應(ying)(ying)(ying)(ying)(ying)無(wu)(wu)松脫，密(mi)(mi)封(feng)環(huan)(huan)表(biao)(biao)(biao)面(mian)(mian)光潔(jie)(jie)，無(wu)(wu)毛邊(bian)，表(biao)(biao)(biao)面(mian)(mian)表(biao)(biao)(biao)面(mian)(mian)粗糙度(du)Ra的較(jiao)大(da)(da) 控(kong)制(zhi)值(zhi)為(wei)0.8μm，與(yu)葉輪(lun)裝配線空隙(xi)量應(ying)(ying)(ying)(ying)(ying)是0.05~0.11mm。以葉輪(lun)內螺紋為(wei)標準，查驗(yan)(yan)(yan)葉輪(lun)軸(zhou)(zhou)向顫動應(ying)(ying)(ying)(ying)(ying)不超(chao)0.05mm。內孔顫動不超(chao)0.04mm。 3、葉輪(lun)與(yu)軸(zhou)(zhou)選用過渡配合，一般為(wei)H7/h6。鍵與(yu)健槽(cao)相互配合過盈(ying)量為(wei)0.09~0.12mm，裝配線后，鍵頂端空隙(xi)量就為(wei)0.04~0.07mm。 4、葉輪(lun)須(xu)作平衡(heng)。 叁、離(li)心泵(beng)(beng)水(shui)(shui)泵(beng)(beng)葉輪(lun)、泵(beng)(beng)殼及導葉輪(lun) 1、清(qing)理并(bing)查驗(yan)(yan)(yan)各(ge)個葉輪(lun)，應(ying)(ying)(ying)(ying)(ying)無(wu)(wu)損(sun)壞(huai)(huai)、裂(lie)(lie)痕、沖蝕等(deng)(deng)(deng)缺(que)(que)點(dian)(dian)。 2、導葉輪(lun)的防轉銷應(ying)(ying)(ying)(ying)(ying)無(wu)(wu)彎折、斷(duan)裂(lie)(lie)和(he)松脫。水(shui)(shui)泵(beng)(beng)葉輪(lun)、泵(beng)(beng)殼密(mi)(mi)封(feng)環(huan)(huan)表(biao)(biao)(biao)面(mian)(mian)應(ying)(ying)(ying)(ying)(ying)無(wu)(wu)黑(hei)點(dian)(dian)、傷疤、管溝(gou)，表(biao)(biao)(biao)面(mian)(mian)表(biao)(biao)(biao)面(mian)(mian)粗糙度(du)Ra的較(jiao)大(da)(da) 控(kong)制(zhi)值(zhi)為(wei)0.8μm，密(mi)(mi)封(feng)環(huan)(huan)與(yu)水(shui)(shui)泵(beng)(beng)葉輪(lun)、泵(beng)(beng)殼裝配線空隙(xi)量為(wei)0.05~...
2020
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有關(guan)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)的(de)(de)(de)一(yi)(yi)些專業知(zhi)識(shi)，小編堅(jian)信常常應(ying)用(yong)到它的(de)(de)(de)客戶對(dui)其常有一(yi)(yi)定水平上的(de)(de)(de)了解(jie)，speck真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)生(sheng)產(chan)廠(chang)(chang)(chang)家(jia)表達，必須(xu)緊密(mi)注(zhu)意真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)過載(zai)(zai)的(de)(de)(de)難題(ti)(ti)。在(zai)操作過程中，因(yin)為實際操作不(bu)善會(hui)(hui)增(zeng)加真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)電(dian)流(liu)(liu)量(liang)的(de)(de)(de)工(gong)作強度(du)，長期后會(hui)(hui)導致電(dian)機(ji)過載(zai)(zai)，真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)縮(suo)小汽體(ti)需(xu)要的(de)(de)(de)輸(shu)出功(gong)率(lv)與壓(ya)差正(zheng)比(bi)，一(yi)(yi)旦汽體(ti)壓(ya)差過高，真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)就(jiu)將(jiang)會(hui)(hui)出現(xian)過載(zai)(zai)狀況，導致電(dian)機(ji)繞阻(zu)燒蝕(shi)。危(wei)害電(dian)流(liu)(liu)量(liang)的(de)(de)(de)要素有很多，處理的(de)(de)(de)方(fang)式也(ye)各(ge)種各(ge)樣，接下(xia)去融(rong)合很多年的(de)(de)(de)檢(jian)修(xiu)工(gong)作經驗。真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)檢(jian)修(xiu)生(sheng)產(chan)廠(chang)(chang)(chang)家(jia)探討下(xia)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)過載(zai)(zai)的(de)(de)(de)緣故及其相(xiang)匹配(pei)的(de)(de)(de)避免(mian)對(dui)策。 真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)在(zai)原(yuan)油、化(hua)工(gong)廠(chang)(chang)(chang)、塑(su)膠(jiao)、化(hua)肥(fei)、汽輪發(fa)電(dian)機(ji)動平衡(heng)設備、航(hang)天航(hang)空(kong)(kong)(kong)(kong)(kong)(kong)室內空(kong)(kong)(kong)(kong)(kong)(kong)間仿真(zhen)(zhen)(zhen)(zhen)模(mo)擬(ni)等(deng)設備上獲得了長期性(xing)運(yun)作的(de)(de)(de)磨(mo)練，因(yin)此應(ying)當在(zai)中國大(da)力發(fa)展(zhan)和運(yun)用(yong)。另外也(ye)普遍用(yong)以(yi)原(yuan)油、化(hua)工(gong)廠(chang)(chang)(chang)、冶(ye)金工(gong)業、紡(fang)織品等(deng)工(gong)業生(sheng)產(chan)。真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)零配(pei)件為用(yong)以(yi)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)噪聲處理的(de)(de)(de)，真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)消(xiao)聲器。 真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)生(sheng)產(chan)廠(chang)(chang)(chang)家(jia)探討下(xia)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)過載(zai)(zai)的(de)(de)(de)緣故，將(jiang)會(hui)(hui)有下(xia)列幾類： 1、真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)密(mi)封(feng)性(xing)液密(mi)度(du)大(da)。 2、正(zheng)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)密(mi)封(feng)性(xing)液溫度(du)高，一(yi)(yi)部(bu)分(fen)氣化(hua)。 3、真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)抽真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)負載(zai)(zai)高，排氣管工(gong)作壓(ya)力過高。 4、真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)水泵(beng)(beng)(beng)密(mi)封(feng)壞，磨(mo)擦(ca)(ca)大(da)。 5、電(dian)機(ji)自身(shen)存在(zai)的(de)(de)(de)問題(ti)(ti)。 6、吸脂(zhi)物質含低粘(zhan)度(du)塬材料，增(zeng)加了離心葉輪與液環的(de)(de)(de)磨(mo)擦(ca)(ca)。 真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)縮(suo)小汽體(ti)需(xu)要的(de)(de)(de)輸(shu)出功(gong)率(lv)與壓(ya)差正(zheng)比(bi)，一(yi)(yi)旦汽體(ti)壓(ya)差過高，泵(beng)(beng)(beng)就(jiu)將(jiang)會(hui)(hui)出現(xian)過載(zai)(zai)狀況，導致電(dian)機(ji)繞阻(zu)燒蝕(shi)。處理泵(beng)(beng)(beng)過載(zai)(zai)難題(ti)(ti)的(de)(de)(de)方(fang)式關(guan)鍵有下(xia)列幾類： 1、選(xuan)用(yong)真(zhen)(zhen)(zhen)(zhen)空(kong)(kong)(kong)(kong)(kong)(kong)泵(beng)(beng)(beng)電(dian)氣元器件操縱(zong)泵(beng)(beng)(beng)入口工(gong)作壓(ya)力 ...
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