德國海隆先導(dǎo)式軟密封滑閥￥herion德國海隆
海隆Herion節(jié)流閥節(jié)流口堵塞原因：
1、油液中的機(jī)械雜質(zhì)或因氧朝析出的膠質(zhì)、瀝青、碳渣等污物堆積在節(jié)流縫隙處。
2、由于油液老化或受到擠壓后產(chǎn)生帶電的極化分子，而節(jié)流縫隙的金屬表面上存在電位差，故極化分子被吸附到縫隙表面，形成牢固的邊界吸附層，吸附層厚度一般為5~8微米，因而影響了節(jié)流縫隙的大小。以上堆積、吸附物增長到一定厚度時(shí)，會被液流沖刷掉，隨后又重新附在閥口上。這樣周而復(fù)始，就形成了流量的脈動。
3、閥口壓差較大時(shí)，因閥口溫度高，液體受擠壓的程度增強(qiáng)，金屬表面也更易受摩擦作用而形成電位差，因此壓差大時(shí)容易產(chǎn)生堵塞現(xiàn)象
：宋珍
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德國海隆先導(dǎo)式軟密封滑閥￥herion德國海隆
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