I. Direct Observation: Visual Signs of Surface Wear
1. Ua kom Nto Roughness nce ntxiv
Ib tug ib txwm roller nto yog du. Kev hnav hnyav yuav ua rau pom tseeb khawb, qhov, lossis "txiv kab ntxwv tev" zoo nkauj.
Ib qho piv txwv ntawm qhov roughness sib piv tuaj yeem siv rau kev txiav txim ua ntej. Yog tias tus nqi Ra tshaj 6.3μm, nws qhia tias hnav ntau dhau.
2. Loj -Tej cheeb tsam xim zaj duab xis Peeling los yog Bubbling
Cov xim pleev xim rau ntawm cov menyuam nto tsis tsuas yog tiv thaiv xeb tab sis kuj qhia txog qhov xwm txheej ntawm lub substrate. Yog hais tias cov xim zaj duab xis adhesion txo qis thiab tev tawm hauv thaj ua rau thaj loj, nws yuav qhia tau tias lub substrate tau pib corrode los yog qaug zog tawg.
3. Localized dents lossis hnav tsis sib xws
Yog hais tias pom tseeb grooves tshwm nyob rau ntawm ob sab los yog nyob rau hauv nruab nrab ntawm cov menyuam, nws qhia tau hais tias tsis sib xws kev nyuaj siab, uas tej zaum yuav ua rau "vibration" thaum lub sij hawm compaction los yog uneven txoj kev nto.
II. Kev Ntsuam Xyuas Cov Qauv thiab Dimensional: Quantifying Degree of Wear
1. Phab ntsa Thickness ntsuas (Qhov taw qhia tseem ceeb)
Siv lub ntsuas ntsuas ultrasonic thickness los ntsuas phab ntsa thickness ntawm ntau qhov chaw ntawm cov menyuam (tshwj xeeb tshaj yog qhov siab -frequency contact area).
Yog hais tias lub thickness ntawm ib cheeb tsam txo los ntawm ntau tshaj 30% ntawm cov thawj tsim thickness, nws yog suav tias yog hnyav hnyav thiab ua rau muaj kev pheej hmoo ntawm kev ua hauj lwm tsis ua hauj lwm.
2. Radial Runout Detection
Nruab ib lub dial qhia thiab tig cov menyuam los ntsuas qhov runout.
Txais Cov Qauv: Radial runout Tsawg dua lossis sib npaug li 0.5mm; yog tias nws tshaj 1 hli, nws qhia tau hais tias cov menyuam yog deformed los yog lub eccentric block tsis sib npaug, thiab yuav tsum tau hloov.
3. Roundness thiab Straightness sib txawv
Siv lub tshuab ntsuas laser los yog ib qho kev sib tw ncaj + kev ntsuas qhov ntsuas kom pom.
Thaum lub roundness sib txawv tshaj 1.5 ‰ ntawm txoj kab uas hla, nws yuav cuam tshuam rau cov uniformity ntawm compaction, ua rau wavy qauv ntawm txoj kev nto.
III. Kev ua haujlwm txawv txav: Indirectly Reflecting hnyav hnav
1. Kev vibration tsis ruaj khov lossis pom tseeb "dhia"
Ib txwm vibration yuav tsum du thiab muaj zog. Yog hais tias lub tshuab lub cev co co hnyav thiab cov kev taw qhia yog ib qho nyuaj rau kev tswj thaum lub sij hawm ua hauj lwm, nws yuav yog vim tsis sib xws ntawm cov menyuam loj tis los yog bearing hnav.
2. Cov suab nrov txawv txav lossis cov suab sib txhuam hlau
Lub suab "clunking" lossis "rustling" kev sib txhuam thaum lub sijhawm ua haujlwm, tshwj xeeb tshaj yog thaum pib ntawm kev vibration, yuav qhia tau tias hnyav hnyav ntawm cov kabmob sab hauv, eccentric blocks, lossis seals.
3. Txo kev ua haujlwm kom tsawg
Yog hais tias lub compaction℃yog substandard nrog tib tus naj npawb ntawm passes, los yog yog hais tias rov compaction yuav tsum tau ua kom tiav cov kev xav tau, nws qhia tau hais tias cov menyuam nto yuav tsis zoo xa mus rau lub zog vibration.
