smc電磁閥
種類繁多，按照通口數有：
SMC三(san)(san)通(tong)(tong)電(dian)磁閥：SY300·500系列、VQZ100·200·300系列、VKF300系列、VT307、VT317、VT325系列電(dian)磁閥；SMC三(san)(san)通(tong)(tong)閥有一(yi)個(ge)進口(kou)(kou)(用P、IN或(huo)SUP表示）、一(yi)個(ge)出口(kou)(kou)（用A或(huo)OUT表示）和一(yi)個(ge)排氣口(kou)(kou)（用O、R或(huo)EXH表示）。SMC三(san)(san)通(tong)(tong)電(dian)磁閥也(ye)可(ke)以是一(yi)個(ge)進口(kou)(kou)和兩(liang)個(ge)出口(kou)(kou)，作為(wei)分(fen)配閥或(huo)者兩(liang)個(ge)進口(kou)(kou)（P1和P2表示）和一(yi)個(ge)出口(kou)(kou)，作為(wei)選擇(ze)閥。
SMC五(wu)(wu)通(tong)(tong)電(dian)磁閥(fa)(fa)：SY3000·5000·7000·9000系(xi)(xi)列(lie)(lie)(lie)、SV1000·2000·3000·4000系(xi)(xi)列(lie)(lie)(lie)、SQ1000·2000系(xi)(xi)列(lie)(lie)(lie)、VQ000·1000·2000系(xi)(xi)列(lie)(lie)(lie)、VQ4000、VQ5000系(xi)(xi)列(lie)(lie)(lie)、VQC1000·2000·4000系(xi)(xi)列(lie)(lie)(lie)、VQZ1000·2000·3000系(xi)(xi)列(lie)(lie)(lie)、VFS2000·3000·4000·5000·6000系(xi)(xi)列(lie)(lie)(lie)、VFR2000·3000·4000·5000·6000系(xi)(xi)列(lie)(lie)(lie)、VQ7-6、VQ7-8系(xi)(xi)列(lie)(lie)(lie)電(dian)磁閥(fa)(fa)；SM五(wu)(wu)通(tong)(tong)電(dian)磁閥(fa)(fa)有(you)一(yi)個進口(kou)(kou)、兩(liang)個出口(kou)(kou)和兩(liang)個排氣(qi)口(kou)(kou)，通(tong)(tong)路為P→A,B→O2（即A口(kou)(kou)進氣(qi)，B口(kou)(kou)排氣(qi)）或者P→B，A→O1。SMC五(wu)(wu)通(tong)(tong)電(dian)磁閥(fa)(fa)一(yi)般是用來(lai)控制雙作用氣(qi)缸(gang)往復運動方向。
SMC二通(tong)電磁閥(fa)：VCA、VCB、VCW、VCL系(xi)(xi)列(lie)(lie)(lie)(lie)、VNA、VNB、VNC、VND、VNH系(xi)(xi)列(lie)(lie)(lie)(lie)、VX21·22·33系(xi)(xi)列(lie)(lie)(lie)(lie)、VXD21·22·33系(xi)(xi)列(lie)(lie)(lie)(lie)、VXP21·22·33系(xi)(xi)列(lie)(lie)(lie)(lie)、VXR21·22·33系(xi)(xi)列(lie)(lie)(lie)(lie)、VXH、VXZ、VXF系(xi)(xi)列(lie)(lie)(lie)(lie)電磁閥(fa)。SMC二通(tong)電磁閥(fa)有一個(ge)進口和一個(ge)出口，控制氣體的通(tong)斷。
SMC電磁閥的(de)常通式和常閉式
2通(tong)(tong)(tong)和3通(tong)(tong)(tong)SMC電磁閥(fa)有常(chang)(chang)通(tong)(tong)(tong)式(shi)(shi)和常(chang)(chang)閉式(shi)(shi)之分。無控制信(xin)號時(shi)，P、A相同為(wei)(wei)常(chang)(chang)通(tong)(tong)(tong)式(shi)(shi)（一般用(yong)N.O.表(biao)示）；P、A斷開(kai)則為(wei)(wei)常(chang)(chang)斷式(shi)(shi)（一般用(yong)N.C.表(biao)示）。若通(tong)(tong)(tong)道內(nei)的流(liu)動方向不限定(ding)，則稱為(wei)(wei)通(tong)(tong)(tong)斷式(shi)(shi)閥(fa)。常(chang)(chang)通(tong)(tong)(tong)式(shi)(shi)和常(chang)(chang)斷式(shi)(shi)SMC電磁閥(fa)，不得逆(ni)向流(liu)動，因逆(ni)向壓力會造成單向型密封(feng)圈(quan)不密封(feng)或密封(feng)失效。
SMC電磁閥的使用(yong)電壓(ya)
電(dian)(dian)磁(ci)(ci)閥(fa)(fa)可使用的(de)電(dian)(dian)源電(dian)(dian)壓也比較(jiao)廣泛，常見的(de)有(you)(you)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)12V、24V；交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)110V、220V，還(huan)有(you)(you)100V、200V等，此(ci)外SMC還(huan)可定制電(dian)(dian)磁(ci)(ci)閥(fa)(fa)的(de)使用電(dian)(dian)壓。交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)磁(ci)(ci)閥(fa)(fa)有(you)(you)蜂鳴(ming)聲(sheng)，行(xing)程(cheng)(cheng)大(da)(da)，吸(xi)力大(da)(da)。直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)磁(ci)(ci)閥(fa)(fa)不存(cun)在蜂鳴(ming)聲(sheng)，行(xing)程(cheng)(cheng)大(da)(da)時(shi)，吸(xi)力很(hen)小(xiao)，即(ji)啟動(dong)力小(xiao)。交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)磁(ci)(ci)閥(fa)(fa)氣動(dong)電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)大(da)(da)，有(you)(you)時(shi)是保持(chi)電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)的(de)10倍以上，若(ruo)動(dong)鐵心(xin)被(bei)(bei)卡(ka)住(zhu)(zhu)，啟動(dong)電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)持(chi)續(xu)流(liu)(liu)(liu)(liu)(liu)(liu)過，線圈發熱厲害(hai)，甚(shen)至被(bei)(bei)燒毀。交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)磁(ci)(ci)閥(fa)(fa)不宜頻繁通斷(duan)。壽(shou)命不及直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)磁(ci)(ci)閥(fa)(fa)長。直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)磁(ci)(ci)閥(fa)(fa)的(de)電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)取(qu)決(jue)于線圈電(dian)(dian)阻(zu)，與行(xing)程(cheng)(cheng)大(da)(da)小(xiao)無(wu)關。故動(dong)鐵心(xin)卡(ka)住(zhu)(zhu)時(shi)不會燒毀線圈。直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)磁(ci)(ci)鐵可頻繁通斷(duan)，工作安全可靠。但錯節高電(dian)(dian)壓，流(liu)(liu)(liu)(liu)(liu)(liu)過電(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)過大(da)(da)時(shi)，仍(reng)會燒毀線圈。
SMC電磁閥的動作方式
電(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)按照動(dong)作(zuo)方式(shi)可以分為直(zhi)動(dong)式(shi)和(he)先(xian)(xian)(xian)(xian)導(dao)(dao)式(shi)。什么是直(zhi)動(dong)式(shi)電(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)呢？SMC直(zhi)動(dong)式(shi)電(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)直(zhi)接依靠(kao)電(dian)(dian)(dian)磁(ci)(ci)(ci)力使閥(fa)(fa)(fa)芯換(huan)向(xiang)。SMC直(zhi)動(dong)式(shi)電(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)通徑較(jiao)小，常用(yong)于(yu)小流量(liang)控制(zhi)或(huo)作(zuo)為先(xian)(xian)(xian)(xian)導(dao)(dao)式(shi)電(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)的(de)電(dian)(dian)(dian)磁(ci)(ci)(ci)先(xian)(xian)(xian)(xian)導(dao)(dao)閥(fa)(fa)(fa)。SMC先(xian)(xian)(xian)(xian)導(dao)(dao)式(shi)電(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)由先(xian)(xian)(xian)(xian)導(dao)(dao)閥(fa)(fa)(fa)和(he)主閥(fa)(fa)(fa)組成(cheng)。依靠(kao)先(xian)(xian)(xian)(xian)導(dao)(dao)閥(fa)(fa)(fa)輸出的(de)氣壓力，通過控制(zhi)活塞(sai)等(deng)推(tui)動(dong)主閥(fa)(fa)(fa)芯換(huan)向(xiang)。通徑大的(de)SMC電(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)大多為先(xian)(xian)(xian)(xian)導(dao)(dao)式(shi)電(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)。SMC先(xian)(xian)(xian)(xian)導(dao)(dao)式(shi)電(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)又分為內部先(xian)(xian)(xian)(xian)導(dao)(dao)式(shi)電(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)和(he)外部先(xian)(xian)(xian)(xian)導(dao)(dao)式(shi)電(dian)(dian)(dian)磁(ci)(ci)(ci)閥(fa)(fa)(fa)。
SMC電(dian)磁閥的接線(xian)方(fang)式(shi)
電磁閥接(jie)線(xian)(xian)方(fang)式(shi)(shi)多(duo)種多(duo)樣，有(you)直接(jie)出線(xian)(xian)方(fang)式(shi)(shi)，例如G、M、L；有(you)接(jie)線(xian)(xian)座(zuo)(zuo)出線(xian)(xian)式(shi)(shi)；有(you)導管接(jie)線(xian)(xian)座(zuo)(zuo)式(shi)(shi)；有(you)DIN形插座(zuo)(zuo)式(shi)(shi)；有(you)L形和M形插座(zuo)(zuo)式(shi)(shi)等(deng)。還(huan)有(you)幾(ji)種配(pei)線(xian)(xian)方(fang)式(shi)(shi)等(deng)等(deng)。
電(dian)(dian)磁(ci)(ci)閥(fa)在電(dian)(dian)磁(ci)(ci)線圈通電(dian)(dian)時，靜鐵心對動鐵心產生(sheng)電(dian)(dian)磁(ci)(ci)吸力(li)，利用電(dian)(dian)磁(ci)(ci)力(li)使閥(fa)芯切換，以改變氣體流動方向，從而實(shi)(shi)現(xian)通斷、換向等。SMC電(dian)(dian)磁(ci)(ci)閥(fa)易(yi)于實(shi)(shi)現(xian)電(dian)(dian)-氣聯合控(kong)制和復雜控(kong)制，能實(shi)(shi)現(xian)遠(yuan)距(ju)離操作(zuo)，故目前應(ying)用SMC電(dian)(dian)磁(ci)(ci)閥(fa)得(de)到越(yue)來越(yue)廣泛(fan)的應(ying)用。