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SMC5通先導(dǎo)式電磁閥現(xiàn)貨搶購(gòu)
點(diǎn)擊次數(shù)：433 發(fā)布時(shí)間：2013-12-16
日本SMC5通電磁閥和安全閥為一體，組成先導(dǎo)式壓力閥，該閥即是卸荷閥又是安全閥，有時(shí)又是溢流閥．卸荷時(shí)其控制油道貫穿各路換向閥，同前述卸荷油道．當(dāng)各路換向閥處于中立位置時(shí)，卸荷閥的控制油道（見(jiàn)圖1b和圖2）貫穿各路換向閥并與油箱連通．卸荷時(shí)，大部分油液卸荷，通道短，壓力損失低．任一路閥換向工作，便切斷控制油道，油源來(lái)油就從換向閥進(jìn)入執(zhí)行元件工作，其工作壓力大小由導(dǎo)閥控制．此時(shí)系統(tǒng)壓力為導(dǎo)閥調(diào)整壓力．該種卸荷方式，即使換向閥路數(shù)增加，只是控制油道增加，卸荷壓力增加不大，始終保持較低卸荷壓力，此種卸荷方式多用于手動(dòng)換向閥，卸荷可靠．
日本SMC5通電磁閥本身結(jié)構(gòu)簡(jiǎn)單，價(jià)格也低，比起調(diào)節(jié)閥等其它種類執(zhí)行器易于安裝維護(hù)。更顯著的是所組成的自控系統(tǒng)簡(jiǎn)單得多，價(jià)格要低得多。由于電磁閥是開(kāi)關(guān)信號(hào)控制，與工控計(jì)算機(jī)連接十分方便。在當(dāng)今電腦普及，價(jià)格大幅下降的時(shí)代，電磁閥的優(yōu)勢(shì)就更加明顯。3）動(dòng)作快遞，功率微小，外形輕巧。電磁閥響應(yīng)時(shí)間可以短至幾個(gè)毫秒，即使是先導(dǎo)式電磁閥也可以控制在幾十毫秒內(nèi)。由于自成回路，比之其它自控閥反應(yīng)更靈敏。設(shè)計(jì)得當(dāng)?shù)碾姶砰y線圈功率消耗很低，屬節(jié)能產(chǎn)品；還可做到只需觸發(fā)動(dòng)作，自動(dòng)保持閥位，平時(shí)一點(diǎn)也不耗電。電磁閥外形尺寸小，既節(jié)省空間，又輕巧美觀。
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