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,，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,，因閥口溫度高,，液體受擠壓的程度增強，金屬表面也更易受摩擦作用而形成電位差,，因此壓差大時容易產(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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