意大利阿托斯電磁閥/ATOS換向閥

     意大(da)利(li)阿托斯(si)電(dian)磁換向(xiang)閥特性(xing)：電(dian)磁換向(xiang)閥起先導(dao)作用，它可(ke)以(yi)(yi)改(gai)變控(kong)制(zhi)液(ye)流(liu)的(de)方(fang)向(xiang)，從(cong)而改(gai)變液(ye)動換向(xiang)閥的(de)位置。由于操縱液(ye)動換向(xiang)閥的(de)液(ye)壓(ya)推力可(ke)以(yi)(yi)很大(da)，所以(yi)(yi)主閥可(ke)以(yi)(yi)做得(de)很大(da)，允許有(you)較(jiao)大(da)的(de)流(liu)量(liang)通過。這(zhe)樣用較(jiao)小的(de)電(dian)磁鐵就(jiu)能控(kong)制(zhi)較(jiao)大(da)的(de)液(ye)流(liu)。

意大利ATOS阿(a)托斯電(dian)磁換向閥(fa)在液(ye)壓(ya)傳動系統中廣泛采用的是滑閥(fa)式換向閥(fa)，在這里主(zhu)要介紹這種換向閥(fa)的幾種結構。
　　1.手(shou)動換向(xiang)閥(fa)：手(shou)動換向(xiang)閥(fa)是利用手(shou)動杠桿來改變閥(fa)芯(xin)位置(zhi)實現換向(xiang)的
　　2.機動(dong)換向(xiang)閥(fa)(fa)：又稱行程(cheng)(cheng)閥(fa)(fa),它主要用來(lai)控制(zhi)液(ye)壓(ya)機械運(yun)動(dong)部件的行程(cheng)(cheng)，它是(shi)(shi)借助于(yu)安裝(zhuang)在工作臺(tai)上的擋鐵或凸輪(lun)來(lai)迫使閥(fa)(fa)芯移動(dong)，從而控制(zhi)油液(ye)的流動(dong)方向(xiang)。機動(dong)換向(xiang)閥(fa)(fa)通(tong)(tong)常是(shi)(shi)二(er)位的,有二(er)通(tong)(tong)、三通(tong)(tong)、四通(tong)(tong)和(he)五(wu)通(tong)(tong)幾(ji)種,其中二(er)位二(er)三通(tong)(tong)機動(dong)閥(fa)(fa)又分(fen)常閉和(he)常開兩種。
　　3.電(dian)(dian)磁(ci)換(huan)向(xiang)閥：利用電(dian)(dian)磁(ci)鐵的通、斷電(dian)(dian)而直(zhi)接推動閥芯來控(kong)制油口的連通狀態。
　　4.液動換向閥
　　5.電液換向閥(fa)：由電磁換向閥(fa)和液動換向閥(fa)組合(he)而成(cheng)。
　　電(dian)磁換向閥(fa)起先導(dao)作用(yong)，它可以(yi)(yi)改(gai)變控制液流(liu)的(de)(de)(de)(de)方向，從(cong)而改(gai)變液動(dong)換向閥(fa)的(de)(de)(de)(de)位置。由于操縱液動(dong)換向閥(fa)的(de)(de)(de)(de)液壓(ya)推力可以(yi)(yi)很(hen)大(da)，所以(yi)(yi)主閥(fa)可以(yi)(yi)做得很(hen)大(da)，允許(xu)有較大(da)的(de)(de)(de)(de)流(liu)量通過。這樣用(yong)較小的(de)(de)(de)(de)電(dian)磁鐵就能控制較大(da)的(de)(de)(de)(de)液流(liu)。

意大利阿托斯電磁閥/ATOS換向閥

ATOS電(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)測(ce)的(de)(de)(de)流(liu)(liu)體類(lei)型主(zhu)要(yao)(yao)(yao)為氣體和液體及(ji)其溫度(du)，粘度(du)，濃度(du)，腐蝕性等(deng)等(deng)。流(liu)(liu)速是指(zhi)流(liu)(liu)體流(liu)(liu)過閥(fa)門(men)(men)(men)(men)的(de)(de)(de)速度(du)，是閥(fa)門(men)(men)(men)(men)主(zhu)要(yao)(yao)(yao)性能(neng)(neng)指(zhi)標。壓(ya)力(li)（差）是閥(fa)門(men)(men)(men)(men)關閉時(shi)要(yao)(yao)(yao)克(ke)服(fu)的(de)(de)(de)力(li)量，同(tong)樣也是閥(fa)門(men)(men)(men)(men)的(de)(de)(de)主(zhu)要(yao)(yao)(yao)指(zhi)標。密封性相對的(de)(de)(de)是閥(fa)門(men)(men)(men)(men)的(de)(de)(de)泄漏指(zhi)標，可(ke)以用單位(wei)(wei)時(shi)間(jian)(jian)內閥(fa)門(men)(men)(men)(men)的(de)(de)(de)泄漏量為單位(wei)(wei)，或者，有些情況下更適(shi)用于氣體，阿(a)托(tuo)斯ATOS電(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)用一個一定容積的(de)(de)(de)密封容器內氣體在一定時(shi)間(jian)(jian)內的(de)(de)(de)壓(ya)力(li)降來表示。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)就(jiu)會(hui)發熱，負(fu)載周期(qi)或者zui大通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)間(jian)(jian),以及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)的(de)(de)(de)功率和散(san)熱就(jiu)決定了(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)的(de)(de)(de)溫升。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)的(de)(de)(de)溫升和環境溫度(du)決定了(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)鐵材料需要(yao)(yao)(yao)的(de)(de)(de)絕緣溫度(du)等(deng)級。輸入阿(a)托(tuo)斯ATOS電(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)不同(tong)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)波形,就(jiu)會(hui)產生不同(tong)工作模式(shi)。實際(ji)應用中(zhong)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源類(lei)型可(ke)能(neng)(neng)有直(zhi)流(liu)(liu)/交流(liu)(liu),恒(heng)壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源,恒(heng)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源,電(dian)(dian)(dian)(dian)(dian)(dian)(dian)瓶,干電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池,直(zhi)流(liu)(liu)發動機,電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容,通(tong)過某種整(zheng)流(liu)(liu)濾波,電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)變化范圍,zui大可(ke)供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)等(deng)因素。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)驅動電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路中(zhong)控制(zhi)觸點的(de)(de)(de)保護(hu)阿(a)托(tuo)斯ATOS電(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)閥(fa)驅動控制(zhi)的(de)(de)(de)觸點可(ke)能(neng)(neng)會(hui)發火花(hua),磨損和產生噪音。

參考(kao)型(xing)號：

SDHI-0639/O-X 24DC,　
SDHI-0639/O-X，
SDHI-0671-X 24DC 23
SDHI-0710-00 23
SDHI-0710-X 00 23
SDHI-0710-X 00（SDHI-0715-X 00）
SDHI-0710-X 230/50/60AC 23
SDHI-0710-X 24DC 23
SDHI-0711-X
SDHI-0711-X 00 23
SDHI-0711-X 12DC 23,　
SDHI-0711-X 230/50/60AC 23
SDHI-0711-X 24DC
SDHI-0711-X 24DC 23
SDHI-0713-00 23
SDHI-0713P-X 24DC

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