力士樂無彈簧復(fù)位帶定位換向閥4WE6HA6X/EG24N9K4

電磁閥（Electromagnetic valve）是用電磁控制的工業(yè)設(shè)備,是用來控制流體的自動化基礎(chǔ)元件,屬于執(zhí)行器,并不限于液壓,氣動。用在工業(yè)控制系統(tǒng)中調(diào)整介質(zhì)的方向,流量,速度和其他的參數(shù)。電磁閥可以配合不同的電路來實現(xiàn)預(yù)期的控制,而控制的精度和靈活性都能夠保證。電磁閥有很多種,不同的電磁閥在控制系統(tǒng)的不同位置發(fā)揮作用,最常用的是單向閥,安全閥,方向控制閥,速度調(diào)節(jié)閥等。

電磁閥故障與排除

　　一、電磁閥通電后不工作

　　檢查電源接線是否不良→重新接線和接插件的連接

　　檢查電源電壓是否在±工作范圍-→調(diào)致正常位置范圍

　　線圈是否脫焊→重新焊接

　　線圈短路→更換線圈

　　工作壓差是否不合適→調(diào)整壓差→或更換相稱的電磁閥

　　流體溫度過高→更換相稱的電磁閥

　　有雜質(zhì)使電磁閥的主閥芯和動鐵芯卡死→進(jìn)行清洗，如有密封損壞應(yīng)更換密封并安裝過濾器

　　液體粘度太大，頻率太高和壽命已到→更換產(chǎn)品

　　二、電磁閥不能關(guān)閉

　　主閥芯或鐵動芯的密封件已損壞→更換密封件

　　流體溫度、粘度是否過高→更換對口的電磁閥

　　有雜質(zhì)進(jìn)入電磁閥產(chǎn)閥芯或動鐵芯→進(jìn)行清洗

　　彈簧壽命已到或變形→更換

　　節(jié)流孔平衡孔堵塞→及時清洗

　　工作頻率太高或壽命已到→改選產(chǎn)品或更新產(chǎn)品

　　三、其它情況

　　內(nèi)泄漏→檢查密封件是否損壞，彈簧是否裝配不良

　　外泄漏→連接處松動或密封件已壞→緊螺絲或更換密封件

　　通電時有噪聲→頭子上堅固件松動，擰緊。電壓波動不在允許范圍內(nèi)，調(diào)整好電壓。鐵芯吸合面雜質(zhì)或不平，及時清洗或更換。

現(xiàn)場快速判斷電磁閥好壞方法

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比例方向閥：4WRA,4WRAE,4WRE,4WREE,4WREEM,4WRH,4WRZ,4WRZE,4WRKE,4WRBKE,4WS2EM

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柱塞泵：A4VSO,A10VSO,A2FO,定量馬達(dá)：A2FM,A4FM,A10FM/E, 齒輪泵：0510,AZPF,葉片泵：PV7

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