PWD00A-400現(xiàn)貨FDEA-LAN 武穴黎翔機電設(shè)備有限公司,詢價聯(lián)系人:彭先生
現(xiàn)象:如果液壓系統(tǒng)中滲入空氣,液體中的氣泡隨著液流運動到壓力較高的區(qū)域時,氣泡在較高壓力作用下將迅速破裂,從而引起局部液壓沖擊,造成噪聲和振動。另外,由于氣泡破壞了液流的連續(xù)性,降低了油管的通油能力,造成流量和壓力的波動,使液壓元件承受沖擊載荷,影響其使用壽命。
原因:液壓油中總含有一定量的水分,通常可溶解于油中,也可以氣泡的形式混合于油中。當壓力低于空氣分離壓力時,溶解于油中的空氣分離出來,形成氣泡;當壓力降至油液的飽和蒸氣壓力以下時,油液會沸騰而產(chǎn)生大量氣泡。這些氣泡混雜于油液中形成不連續(xù)狀態(tài),這種現(xiàn)象稱為空穴現(xiàn)象。
部位:吸油口及吸油管中低于大氣壓處,易產(chǎn)生氣穴;油液流經(jīng)節(jié)流口等狹小縫隙處時,由于速度的增加,使壓力下降,也會產(chǎn)生氣穴。
危害:氣泡隨油液運動到高壓區(qū),在高壓作用下迅速破裂,造成體積突然減小、周圍高壓油高速流過來補充,引起局部瞬間沖擊,壓力和溫度急劇升高并產(chǎn)生強烈的噪聲和振動。
措施:要正確設(shè)計液壓泵的結(jié)構(gòu)參數(shù)和泵的吸油管路,盡量避免油道狹窄和急彎,防止產(chǎn)生低壓區(qū);合理選用機件材料,增加機械強度、提高表面質(zhì)量、提高抗腐蝕能力。[4]
Parker 比例閥 D1FVE02BCVLW25
Parker 比例閥 D1FVE02BCVXW25
Parker 比例閥 D1FVE50BCVLB35
Parker 比例閥 D31FBE01CC1NF0010
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Parker 比例閥 D41FHB31F2NB0048
Parker 比例閥 D41FHB32C2NB0048
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Parker 比例閥 D41FHE01C2NB0048
Parker 比例閥 D41FHE01E1NE0048
Parker 比例閥 D41FHE01F1NE0048
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Parker 比例閥 D41FHE02C1NB0048
Parker 比例閥 D41FHE02C1NE0048
Parker 柱塞泵 PV016R1K1T1NMMC4545
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Parker 柱塞泵 PV140R1K1T1NMMC4445M4SD-088-3N00-B5M4
M4SD-088-3N00-B5M4
M4SD-088-SN00-B501
M4SD-088-SN00-B501
M4SD-088-SN00-B502
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M4SD-102-1N00-B501
M4SD-102-1N00-B501
M4SD-102-1N00-B502
M4SD-102-1N00-B502
M4SD-102-1N00-B504
M4SD-102-1N00-B504
M4SD-102-1N00-B504-M277330
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M4SD-102-1N00-B5M4
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M4SD-102-1N00-B5X2-M534686
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M4SD-102-3N00-B501
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M4SD-113-1N00-B501
M4SD-113-1N00-B502
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M4SD-113-1N00-B504
M4SD-113-1N00-B504-M277331
M4SD-113-1N00-B504-M277331
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M4SD-113-1N00-B5M4
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M4SD-113-1N00-B5X2-M534687
M4SD-113-3N00-B501力士樂Rexroth比例方向閥型號:
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4WRZ10E85-7X/6EG24N9K4/D3M
4WRZ10W6-85-7X/6EG24N9ETK4/D3M+Z4
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4WRZ16W6-150-7X/6EG24N9TK4/D3M
4WRZ16W8-150-7X/6EG24N9EK4/D3M
4WRZ16W8-150-70/6EG24N9ETK4/M
4WRZ16W8-150-70/6EG24N9ETK4/D3M
4WRZ25E1-325-70/6EG24N9K4/D3M
4WRZ25E2-325-7X/6EG24K4/D3M-728
4WRZ25EA220-70/6EG24N9K4/D3M
4WRZ25EA220-70/6EG24N9K4/D3M
4WRZ25E325-7X/6EG24N9ETK4/D3M
4WRZ25E325-7X/6EG24N9TK4/D3M
4WRZ25W8-220-7X/6EG24N9EK4/D3M
4WRZ25W8-325-70/6EG24N9K4/D3M
4WRZ25W8-325-7X/6EG24N9ETK4/D3V
4WRZ25W8-325-70/6EG24N9ETK4/D3M
4WRZE10E1-50-7X/6EG24EK31/A1D3M
4WRZE10W6-85-7X/6EG24ETK31/A1D3M
4WRZE10W8-50-7X/6EG24N9ETK4/F1D3M
4WRZE10W8-85-7X/6EG24N9ETK31/F1D3M
4WRZE16E-150-7X/6EG24N9ETK31/F1D3M
4WRZE16W6-150-7X/6EG24N9K31/F1D3M
4WRZE16W8-100-7X/6EG24N9ETK31/F1D3M
4WRZE16W8-100-7X/6EG24N9ETK31/FID3M
4WRZE16W8-150-7X/6EG24N9EK31/A1D3M
4WRZE16W8-150-7X/6EG24N9ETK31/F1D3M
4WRZE16W8-150-7X/6EG24N9ETK31/F1D3M
4WRZE25E-220-7X/6EG24N9ETK31/F1D3M
4WRZE25E-325-70/6EG24N9ETK31/A1D3V
4WRZE25W6-325-70/6EG24N9K31/A1D3M
4WRZE25W6-325-70/6EG24N9ETK31/A1D3M
4WRZE25W6-325-7X/6EG24ETK31/A1D3M
4WRZE25W8-220-70/6EG24N9K31/A1D3V
4WRZE25W8-220-70/6EG24N9K31/A1D3V
4WRZE32W6-520-70/6EG24N9K31/F1D3M
4WRZE32W8-520-7X/6EG24N9EK31/A1D3M
4WRZE32W8-520-7X/6EG24N9TK31/F1D3M
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R900618109 4WRH16W8-100-7X//M
R900616689 4WRH10W6-50-7X//M
R901119189 4WRH32E360-7X//M
R901118106 4WRH32E1-360-7X//M
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R901103677 4WRH25E325-7X/J/M
R901094954 4WRH16W100-7X/J/M
R901066568 4WRH32W6-360-7X//M
R901065504 4WRH10E1-25-7X//M
R901064032 4WRH25W8-220-7X//M
R901061841 4WRH16W9-150-7X//M