Covplaub-kem hydraulic xovxwmxa hydraulic roj rau lub valve thaiv nyob rau hauv qhov kev txiav txim ntawm cov roj twj tso kua mis.Lub kaw lus tswj tswj txhua lub valve kom cov roj hydraulic siab mus txog rau sab sauv thiab qis ntawm lub tog raj kheej hydraulic, ua rau cov xovxwm hydraulic txav mus.Hydraulic xovxwm yog ib qho khoom siv uas siv cov kua xa mus rau lub siab.
Hydraulic roj tseem ceeb heev rau plaub-kem hydraulic presses thiab yog ib qho ntawm cov kev ntsuas tseem ceeb los txo cov tshuab hnav.Xaiv cov roj hydraulic kom raug yog ncaj qha ntsig txog kev pabcuam lub neej ntawm lub tshuab hydraulic.
Thaum xaiv cov roj rau plaub-kem hydraulic xovxwm, koj yuav tsum xub xaiv qhov tsim nyog viscosity.Kev xaiv cov roj viscosity yuav tsum xav txog cov yam ntxwv ntawm cov qauv, ua haujlwm kub thiab ua haujlwm siab ntawm hydraulic system.Nyob rau hauv lub hydraulic kis tau tus mob, cov roj twj tso kua mis yog ib tug ntawm cov rhiab heev Cheebtsam rau kev hloov nyob rau hauv hydraulic roj viscosity.Ntau hom twj tso kua mis txhua tus muaj qhov tsawg kawg nkaus thiab siab tshaj qhov tso cai viscosity.Txhawm rau txo qis kev siv hluav taws xob, cov roj uas tsis muaj viscosity feem ntau yuav tsum tau siv ntau li ntau tau.Txawm li cas los xij, txhawm rau txhawm rau lubricate cov khoom tseem ceeb thiab tiv thaiv kom tsis txhob tawm, cov roj hydraulic ntawm cov viscosity tsim nyog yuav tsum tau xaiv.
| Pump hom | Viscosity (40 ℃) centistokes | Ntau yam | |
| 5-40 ℃ | 40-80 ℃ | ||
| Vane twj tso kua mis qis dua 7 Mpa | 30-50 | 40-75 : kuv | HL |
| Vane twj tso kua mis 7Mpa saum toj no | 50-70 | 55-90 : kuv | HM |
| Ntsia hlau twj | 30-50 | 40-80 : kuv | HL |
| iav twj tso kua mis | 30-70 Nws | 95-165 : kuv | HL lub HM |
| Radial piston twj tso kua mis | 30-50 | 65-240 : kuv | HL lub HM |
| Axial kem piston twj tso kua mis | 40 | 70-150 : kuv | HL or HY |
1. Hydraulic Oil Model Classification
Hydraulic roj qauv tau muab faib ua peb hom qauv hauv teb chaws: HL hom, HM hom, thiab HG hom.
(1) HL hom hydraulic roj yog tsim los ntawm cov roj refined, kuj muaj qhov tob nruab nrab hauv nruab nrab roj, ntxiv rau cov tshuaj tua kab mob thiab tshuaj tiv thaiv xeb.Raws li kev txav ntawm 40 degrees Celsius, viscosity tuaj yeem muab faib ua rau qib: 15, 22, 32, 46, 68, thiab 100.
(2) HM hom muaj xws li siab alkaline, alkaline tsawg zinc, nruab nrab siab zinc thiab ashless hom.Raws li kev txav ntawm 40 degrees Celsius, viscosity muab faib ua plaub qib: 22, 32, 46, thiab 68.
(3) HG hom muaj kev tiv thaiv xeb thiab tiv thaiv oxidation.Ntxiv mus, viscosity Performance index txhim kho yog ntxiv, uas muaj cov yam ntxwv zoo viscosity-kub.
2. Hydraulic roj qauv siv
(1) HL hydraulic roj yog siv rau lubrication nyob rau hauv bearing thawv thiab low-pressure circulation systems ntawm ntau yam tshuab cov cuab yeej uas tsis muaj tshwj xeeb yuav tsum tau rau cov roj thiab ambient kub yog siab tshaj xoom degrees Celsius.Cov khoom zoo li no feem ntau muaj kev sib khi zoo heev, thiab qhov siab tshaj plaws ua haujlwm kub tuaj yeem ncav cuag 80 degrees Celsius.
(2) HM hydraulic roj yog tsuas yog siv nyob rau hauv hydraulic systems ntawm hnyav-duty, nruab nrab-siab thiab high-pressure vane twj, plunger twj thiab iav twj tso kua mis.Tsis tas li ntawd, hom roj hydraulic no kuj tsim nyog rau nruab nrab-siab thiab high-pressure engineering khoom thiab tsheb hydraulic systems.
(3) HG hydraulic roj muaj cov khoom zoo los tiv thaiv xeb, tiv thaiv oxidation, tiv thaiv hnav, thiab tiv thaiv cov nplaum nplaum, yog li nws yog qhov tsim nyog rau lub tshuab lubrication uas siv cov cuab yeej siv tshuab hydraulic thiab cov lus qhia.
Kev khiav hauj lwm kub ntawm hydraulic roj ntawm cov qib viscosity sib txawv raws li cov kev cai sib txawv yog raws li hauv qab no.
| Qib viscosity (40 ℃) centistokes | Qhov xav tau viscosity thaum pib yog 860 centistokes | Qhov xav tau viscosity thaum pib yog 110 centistokes | Qhov siab tshaj plaws viscosity xav tau thaum lub sijhawm ua haujlwm yog 54 centistokes | Qhov siab tshaj plaws viscosity xav tau thaum lub sijhawm ua haujlwm yog 13 centistokes |
| 32 | -12 ℃ | 6 ℃ | 27 ℃ | 62 ℃ |
| 46 | -6 ℃ | 12 ℃ | 34 ℃ | 71 ℃ |
| 68 | 0 ℃ | 19 ℃ | 42 ℃ | 81 ℃ |
Muaj ntau hom hydraulic roj nyob rau hauv kev ua lag luam, thiab tseem muaj ntau hom hydraulic tshuab.Txawm hais tias lub luag haujlwm ntawm cov roj hydraulic yog qhov zoo ib yam, nws tseem yuav tsum xaiv cov roj hydraulic sib txawv rau cov tshuab hydraulic sib txawv.Thaum xaiv cov roj hydraulic, cov neeg ua haujlwm yuav tsum nkag siab tias nws yog feem ntau hais kom ua, thiab tom qab ntawd xaiv cov roj hydraulic kom raug rau lub tshuab hydraulic.
Yuav Ua Li Cas Xaiv Cov Roj Hydraulic Zoo rau Hydraulic Xovxwm
Ob txoj kev feem ntau siv thaum xaiv cov roj hydraulic.Ib qho yog xaiv cov roj hydraulic raws li cov roj hom thiab cov lus qhia tshwj xeeb pom zoo los ntawm hydraulic xovxwm chaw tsim khoom cov qauv lossis cov lus qhia.Lwm qhov yog kom nkag siab txog kev xaiv cov roj hydraulic raws li cov xwm txheej tshwj xeeb ntawm lub tshuab hydraulic, xws li kev ua haujlwm siab, ua haujlwm kub, txav ceev, hom hydraulic Cheebtsam thiab lwm yam.
Thaum xaiv, lub luag haujlwm tseem ceeb yuav tsum tau ua yog: txiav txim siab qhov viscosity ntau ntawm cov roj hydraulic, xaiv cov roj hydraulic uas tsim nyog, thiab ua tau raws li qhov tshwj xeeb xav tau ntawm hydraulic system.
Feem ntau xaiv raws li cov hauv qab no:
(1) Raws li kev xaiv sib txawv ntawm hydraulic xovxwm ua haujlwm tshuab
Precision machinery thiab cov tshuab dav dav muaj qhov sib txawv viscosity.Txhawm rau kom tsis txhob deformation ntawm lub tshuab qhov chaw tshwm sim los ntawm qhov kub thiab txias thiab cuam tshuam rau kev ua haujlwm raug, cov tshuab precision yuav tsum siv cov roj hydraulic nrog qis viscosity.
(2) Xaiv raws li hom hydraulic twj tso kua mis
Lub twj tso kua mis hydraulic yog ib qho tseem ceeb ntawm cov xovxwm hydraulic.Nyob rau hauv hydraulic xovxwm, nws txav ceev, siab thiab kub nce siab, thiab nws lub sij hawm ua hauj lwm yog ntev, yog li qhov yuav tsum tau rau viscosity yog nruj dua.Yog li ntawd, hydraulic twj tso kua mis yuav tsum tau muab rau hauv kev txiav txim siab thaum xaiv cov viscosity.
(3) Xaiv raws li kev ua haujlwm siab ntawm hydraulic xovxwm
Thaum lub siab yog siab, cov roj uas muaj viscosity siab dua yuav tsum tau siv kom tsis txhob muaj cov kab mob ntau dhau thiab ua haujlwm tsawg.Thaum lub siab ua haujlwm qis, nws yog qhov zoo dua los siv cov roj nrog qis viscosity, uas tuaj yeem txo qhov poob siab.
(4) Xav txog qhov chaw ua haujlwm kub ntawm hydraulic xovxwm
Lub viscosity ntawm cov ntxhia roj hloov ntau heev vim qhov kub thiab txias.Txhawm rau kom ntseeg tau tias qhov viscosity tsim nyog ntawm qhov ua haujlwm kub, qhov cuam tshuam ntawm qhov ntsuas kub nyob ib puag ncig yuav tsum tau txiav txim siab.
(5) Xav txog kev txav ceev ntawm qhov chaw ua haujlwm ntawm hydraulic xovxwm
Thaum qhov txav ceev ntawm qhov chaw ua haujlwm hauv hydraulic system yog siab heev, cov roj ntws ntawm cov roj kuj tseem qis, hydraulic poob nce random, thiab cov xau kuj tseem txo qis, yog li nws yog qhov zoo dua los siv cov roj nrog qis viscosity.
(6) Xaiv hom roj hydraulic uas tsim nyog
Xaiv cov roj hydraulic los ntawm cov tuam txhab tsis tu ncua tuaj yeem txohydraulic xovxwm tshuabtsis ua haujlwm thiab txuas ntxiv lub neej ntawm lub tshuab xovxwm.
Post lub sij hawm: Nov-24-2023
