Lub hauv paus ntsiab lus ntawm kev ntim khoom feem ntau yog nyob ntawm cov nyhuv labyrinth thiab cov nyhuv bearing.

Cov nyhuv maze: Lub microscopic qis ntawm tus ncej yog qhov tsis sib xws, thiab nws tuaj yeem tsuas yog ib feem haum nrog cov ntim, tab sis tsis nyob rau hauv kev sib cuag nrog lwm qhov chaw. Yog li ntawd, muaj qhov sib txawv me me ntawm cov ntim khoom thiab cov ncej, zoo li txoj kab tshawb nrhiav, thiab qhov nruab nrab ntawm lub siab yog nyob rau hauv qhov sib txawv. Nws yog throttled ob peb zaug kom ua tiav cov nyhuv sealing.

Cov nyhuv ntawm cov kabmob: yuav muaj cov kua nplaum nyias nyias ntawm cov ntim thiab cov ncej, uas ua rau cov khoom ntim thiab cov ncej zoo ib yam li zawv zawg bearings thiab plays cov nyhuv lubrication, yog li tsis txhob hnav ntau dhau ntawm cov ntim thiab cov ncej.

Cov khoom yuav tsum muaj: Vim qhov kub, siab, thiab PH ntawm qhov nruab nrab kaw, nrog rau cov kab nrawm, qhov roughness, coaxiality, radial runout, eccentricity thiab lwm yam ntawm axially. cais case twj tso kua mis, cov khoom ntim khoom yuav tsum muaj cov yam ntxwv hauv qab no:

1. Muaj ib qho kev kawm ntawm elasticity thiab plasticity

2. Tshuaj lom neeg ruaj khov

3. impermeability

4. Lubricating nws tus kheej

5. Kub tiv taus

6. Yooj yim rau disassemble thiab sib sau ua ke

7. Yooj yim los tsim thiab tsis tshua muaj nqi.

Cov khoom siv saum toj no cuam tshuam ncaj qha rau kev sib khi ua haujlwm thiab kev pabcuam lub neej ntawm cov ntim khoom, thiab muaj cov khoom siv tsawg heev uas tuaj yeem ua tau raws li tag nrho cov khoom saum toj no. Yog li ntawd, tau txais cov ntaub ntawv zoo sealing thiab txhim kho lawv cov khoom siv tau ib txwm yog qhov tseem ceeb ntawm kev tshawb fawb hauv kev sib khi.

Classification, muaj pes tsawg leeg thiab daim ntawv thov ntawm packing rau  axially split case twj .

Vim muaj kev ua haujlwm sib txawv, muaj ntau hom kev ntim khoom. Txhawm rau kom paub qhov txawv thiab xaiv cov ntim zoo dua, peb feem ntau faib cov ntim raws li cov khoom ntawm lub ntsiab sealing puag khoom ntawm packing:

1. Natural fiber packing. Natural fiber packing mas suav nrog ntuj paj rwb, linen, ntaub plaub, thiab lwm yam raws li sealing puag cov ntaub ntawv.

2. Mineral fiber ntau ntim. Mineral fiber packing mas suav nrog asbestos packing, thiab lwm yam.

3. Synthetic fiber packing. Synthetic fiber packing mas suav nrog: graphite packing, carbon fiber packing, PTFE packing, Kevlar packing, acrylic-clip silicone fiber packing, thiab lwm yam.

4. Ceramic thiab hlau fiber packing Ceramic thiab hlau fiber ntau packing mas muaj xws li: silicon carbide packing, boron carbide packing, nruab nrab-alkali iav fiber ntau packing, thiab lwm yam. Vim hais tias ib tug fiber ntau cov ntaub ntawv muaj ntau los yog tsawg dua ib co ntaub ntawv lawv tus kheej qhov tsis zoo yog tias ib leeg. fiber ntau yog siv los xaws lub ntim. Txij li thaum muaj qhov sib txawv ntawm cov ntim fibers, nws yog ib qho yooj yim los ua kom to. Nyob rau tib lub sijhawm, qee cov fibers muaj cov khoom tsis zoo rau nws tus kheej lubricating thiab muaj kev sib txhuam loj, yog li lawv yuav tsum tau impregnated nrog qee cov roj nplua nyeem thiab cov muab tub lim. thiab tshwj xeeb additives, thiab lwm yam. Txhawm rau txhim kho qhov ceev thiab lubricity ntawm cov muab tub lim, xws li: cov roj ntxhia lossis molybdenum disulfide grease tov nrog graphite hmoov, talc hmoov, mica, glycerin, zaub roj, thiab lwm yam, thiab impregnated polytetrafluoroethylene dispersion emulsion, thiab Hauv Ntxiv cov nqi tsim nyog ntawm surfactants thiab dispersants rau emulsion. Cov additives tshwj xeeb feem ntau suav nrog zinc particles, barrier agents, molybdenum-based corrosion inhibitors, thiab lwm yam.