Failure Mechanism thiab Kev Nyab Xeeb Kev Nyab Xeeb ntawm Kev Ruaj Ntseg Qhov System
Dab tsi yog cov ntsiab lus tseem ceeb ntawm txoj kab hluav taws xob hluav taws xob?
Cov no muaj xws li rail rwb thaiv tsev pob qij txha, rwb thaiv tsev clamps, rwb thaiv tsev lub tes tsho, rwb thaiv tsev gaskets, gauge blocks, rwb thaiv tsev ntaub, bolt rwb thaiv tsev lub tes tsho, thiab turnout rwb thaiv tsev Cheebtsam. Kev puas tsuaj, kev laus, lossis kev ua haujlwm nyob rau hauv ib qho ntawm cov khoom no tuaj yeem ua rau luv luv, xau, thiab kev ua haujlwm tsis zoo hauv lub voj voog khiav.
Dab tsi yog cov ntaub ntawv tseem ceeb thiab ua rau lub rwb thaiv tsev tsis ua haujlwm?
Mechanical puas ntsoog: kev cuam tshuam ntawm kev teeb tsa, nyem, thiab dov ua rau tawg, chipping, thiab crushing ntawm rwb thaiv tsev. Kev laus tsis ua hauj lwm: Ntev- lub sij hawm raug rau ultraviolet hluav taws xob, kub thiab tsis kub, thiab dej immersion ua rau roj hmab, yas, thiab fiberglass cov ntaub ntawv ua nkig, pulverize, thiab nce conductivity. Dej thiab plua plav conductivity: Cov dej nag, av nkos, hlau hmoov, thiab hmoov av tsim ib txheej txheej ntawm rwb thaiv tsev, txo cov rwb thaiv tsev. Hlau bridging: Hlau filings, vuam slag, thiab gravel nkag mus rau hauv rwb thaiv tsev qhov khoob, tsim txoj kev conductive. Cov khoom siv tsis zoo: Tsis muaj purity txaus, impurities, thiab huab cua tsis zoo ntawm cov ntaub ntawv rwb thaiv tsev. Kev tsim muaj kuab paug: mortar, pob zeb, thiab cov roj stains npog cov rwb thaiv tsev, txo cov rwb thaiv tsev ua haujlwm.
Dab tsi yog qhov ntsuas ntsuas tseem ceeb rau kev ua haujlwm rwb thaiv tsev?
Rwb thaiv tsev tsis kam: Feem ntau yuav tsum tsis pub tsawg tshaj 10 MΩ nyob rau hauv ib txwm muaj mob, thiab yuav tsum tswj kom muaj qib siab txawm tias nyob rau hauv nag, daus, thiab qhov chaw ntub dej. Lub zog dielectric: Muaj peev xwm tiv taus qhov ntsuas hluav taws xob tsis muaj kev puas tsuaj. Huab cua tsis kam: ruaj khov hauv qhov loj thiab kev ua haujlwm tom qab siab thiab qis kub caij tsheb kauj vab thiab kev laus. Mechanical zog: Resistant compression, cuam tshuam, thiab shear, tsis yooj yim puas. Cov nplaim hluav taws kub hnyiab, ib puag ncig tus phooj ywg, thiab tsis yog - lom, ua tau raws li qhov yuav tsum tau muaj ntawm cov kab hauv av thiab cov kab hauv av.
Vim li cas cov kev cai rwb thaiv tsev rau ballastless khiav siab dua?
Ballastless khiav yog ua raws li cov pob zeb muaj zog, uas yog qhov ua tau zoo heev. Thaum cov rwb thaiv tsev xau, qhov tam sim no tau ncaj qha mus rau lub hauv paus qauv, ua rau rov qab nyuaj. Tsis tas li ntawd, tom qab lub ballastless khiav tau raug kho kom zoo, hloov cov khoom siv rwb thaiv tsev yog qhov nyuaj thiab kim. Yog li ntawd, ballastless fasteners feem ntau siv ntau lub rwb thaiv tsev, tag nrho - rwb thaiv tsev interface, thiab qib siab - cov ntaub ntawv rwb thaiv tsev, thiab tau txais kev ntsuam xyuas nruj heev thaum lub sij hawm tsim kho thiab kev ua haujlwm thiab kev saib xyuas.
Yuav ua li cas tiv thaiv thiab teeb meem rwb thaiv tsev faults thaum lub sij hawm ua hauj lwm thiab txij nkawm?
Tsis tu ncua xyuas cov rwb thaiv tsev tiv thaiv nrog megohmmeter, tsom rau lub caij los nag thiab khov - lub sijhawm thaw. Tam sim ntawd ntxuav lub txaj ntawm cov av nkos, hlau hmoov, thiab cov khib nyiab, thiab ua kom lub rwb thaiv tsev cuam tshuam kom qhuav thiab huv. Tsis txhob ntaus cov khoom siv hluav taws xob ncaj qha nrog cov cuab yeej hlau kom tsis txhob muaj kev puas tsuaj. Hloov cov khoom rwb thaiv tsev ib txhij thaum hloov cov fasteners; tsis txhob sib tov qhov tshiab thiab qub. Ua segmented soj ntsuam ntawm cov seem uas tsis zoo rwb thaiv tsev kom sai nrhiav qhov tsis ua hauj lwm point. Siv cov khoom siv txhawb zog, ua kom tag nrho, thiab huab cua- tiv thaiv cov khoom tiv thaiv hauv siab - feem pheej hmoo.