Mining log rimsdais rov cuam tshuam, kev vibration thiab cyclic load nyob rau hauv qhib- qhov chaw. Kev txheeb xyuas ntxov ntawm cov teeb meem ntawm ntug yuav pab kom tsis txhob poob siab tam sim ntawd thiab tsis npaj lub tsheb thauj mus los. Anqiang teev cov cim pom tau uas qhia tias koj lub log tsheb mining xav tau hloov pauv.
1. Pom pom kev tawg ntawm ntug qauv
Txheeb xyuas cov kab lus, hais cov hauv paus hniav, qhov chaw sib txuas hub thiab ntug flange. Txhua qhov tawg uas pom ntawm cov haujlwm no txhais tau hais tias lub ntug tsis tuaj yeem ua haujlwm ntxiv. Cracks nthuav dav nyob rau hauv dynamic load. Txawm tias me me qhov tawg yuav loj hlob thaum lub sijhawm ua haujlwm thiab ua rau lub npoo tawg.
2. Permanent Deformation lossis dents
Dents, khoov los yog tawm- ntawm- puag ncig cov duab ntawm lub npoo flange los yog lub cev lub cev suav tias yog deformation mus tas li. Hom kev puas tsuaj no hloov kev sib cuag ntawm ntug thiab lub log tsheb. Nws tsim cov khoom thauj tsis sib xws thaum khiav, ua kom lub log tsheb hnyav thiab ua rau muaj kev ntxhov siab ntawm cov qauv rim. Thaum deformation tas mus li tshwm sim, yuav tsum tau hloov pauv.
3. Bolt Qhov Hnav thiab Elongation
Xyuas tag nrho cov bolt qhov. Thaum lub qhov ua elongated, oval los yog qhia hnyav hnav nyob ib ncig ntawm lub puab ntug, lub bolt kev twb kev txuas tsis tuaj yeem tuav ruaj khov clamping quab yuam. Kev sib txuas xoob tshwm sim yooj yim thaum lub sijhawm ua haujlwm. Torsion thiab vibration yuav hloov kev ntxhov siab ntxiv rau tag nrho cov ntug. Kev kho tsis tuaj yeem rov ua lub zog qub ntawm lub qhov ntsia hlau uas hnav.
4. Corrosion hnyav lossis khoom poob
Ntev -lub sij hawm raug rau cov dej noo, plua plav thiab tshuaj lom neeg ua rau corrosion. Sib sib zog nqus pitting thiab cov ntaub ntawv thinning ntawm ntug nto txo cov ntoo khaub lig zoo - seem ntawm cov qauv. Yog hais tias corrosion pits nkag mus tob los yog kis thoob plaws qhov tseem ceeb load-cov kabmob, cov npoo poob nws lub peev xwm thauj khoom.
5. Cov dej ntws tawm ntawm ntug thiab cov log tsheb sib cuag
Cov pa tawm los ntawm qhov chaw sib khi ntawm lub npoo flange thiab lub log tsheb tuaj yeem ua rau lub npoo npoo puas. Thaum khawb qhov chaw, qhov pits lossis deformation tsis tuaj yeem kho kom tsim tau lub foob kaw ntom nti, cov pa tawm yuav txuas ntxiv mus. Lub npoo yuav tsum tau hloov.
6. Kev kuaj pom tsis zoo los ntawm kev kuaj tsis zoo
Qee qhov teeb meem sab hauv tsis tuaj yeem pom los ntawm qhov muag liab qab. Kev tshuaj xyuas NDT tuaj yeem pom cov microcracks zais, cov kab noj hniav shrinkage lossis cov khoom tsis sib xws hauv lub cev ntug. Yog tias cov ntaub ntawv soj ntsuam pom muaj qhov tsis xws luag dhau qhov kev txwv, lub npoo yuav tsum raug muab tshem tawm ntawm kev pabcuam.
7. Kev puas tsuaj tom qab hnyav hnyav
Yog tias lub log tsoo pob zeb loj lossis raug kev sib tsoo hnyav, yuav tsum tau kuaj xyuas tag nrho. Txawm tias tsis pom kev puas tsuaj, sab hauv microcracks tuaj yeem tsim. Thaum NDT kuaj pom qhov tsis zoo tom qab kev cuam tshuam, hloov lub npoo.
Common Misjudgments
- Tsis quav ntsej cov kab nrib pleb me me thiab ua kom lub tsheb khiav
- Sim kho elongated bolt qhov los ntawm vuam
- Txuas ntxiv siv cov rims nrog tawm - ntawm - puag ncig deformation
- Kho cov pa me me li tsuas yog teeb meem log tsheb xwb
Cov neeg ua haujlwm yuav tsum tau ua qhov kev kuaj xyuas ntug tsis tu ncua. Cov kab nrib pleb, deformation mus tas li, elongated bolt qhov, sib sib zog nqus corrosion thiab NDT- lees paub qhov tsis xws luag sab hauv yog lub cim tseem ceeb rau kev hloov. Tsis txhob siv lub ntug tam sim ntawd thaum cov paib no tshwm sim. Anqiang cov khoom sivhnyav- lub luag haujlwm mining log rimsnrog cov ntaub ntawv soj ntsuam tiav.