德國賀德克濾芯比普通液壓油濾芯壽命長(zhǎng)的原因，濾芯的損耗過程，主要是污染物對(duì)濾芯的堵塞?！∥廴疚锛虞d一個(gè)濾芯污染物加載過程就是堵塞濾芯通孔的過程。當(dāng)濾芯被污染顆粒堵住時(shí)，能夠通過液流的孔減少，要保證通過濾材的流量，壓差就要增大。在初始階段，由于濾材上有許多孔，通過濾芯的壓差增長(zhǎng)很慢，堵塞的孔對(duì)整個(gè)壓力損失影響很小?？墒?，當(dāng)堵塞孔達(dá)到一個(gè)值時(shí)，堵塞非常迅速，在這一點(diǎn)，通過濾芯的壓差上升非?？臁Ｒ粋€(gè)濾芯濾材孔的數(shù)量、尺寸、形狀和分布表明了為何一個(gè)濾芯比另一個(gè)濾芯壽命長(zhǎng)的原因。

　　對(duì)于一給定厚度和過濾精度的濾材，濾紙比玻纖濾材的孔少，因此，濾紙材料的濾芯就比玻纖濾材的濾芯堵塞快。多層玻纖濾材的濾芯能夠容納更多的污染物，當(dāng)液流通過濾芯是，各個(gè)濾層濾除不同尺寸的顆粒，后層濾材中小的孔不會(huì)被大的顆粒堵塞，這些后層濾材的小孔仍然過濾流體中大量的小顆粒。0480D003BN/HC 0480D005BN/HC 0480D010BN/HC 0480D020BN/HC 0480D003BN3HC 0480D005BN3HC 0480D010BN3HC0480D020BN3HC 0480D003BN4HC 0480D005BN4HC 0480D010BN4HC 0480D020BN4HC 0480D020P 0480D020W

0500D003BN/HC 0500D005BN/HC 0500D010BN/HC 0500D020BN/HC 0500D003BN3HC 0500D005BN3HC 0500D010BN3HC0500D020BN3HC 0500D003BN4HC 0500D005BN4HC 0500D010BN4HC 0500D020BN4HC 0500D020P 0500D020W

0660D003BN/HC 0660D005BN/HC 0660D010BN/HC 0660D020BN/HC 0660D003BN3HC 0660D005BN3HC 0660D010BN3HC0660D020BN3HC 0660D003BN4HC 0660D005BN4HC 0660D010BN4HC 0660D020BN4HC 0660D020P 0660D020W

0990D003BN/HC 0990D005BN/HC 0990D010BN/HC 0990D020BN/HC 0990D003BN3HC 0990D005BN3HC 0990D010BN3HC0990D020BN3HC 0990D003BN4HC 0990D005BN4HC 0990D010BN4HC 0990D020BN4HC 0990D020P 0990D020W

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