Yuav ua li cas ua ua yam tsis pom kev ntsuas ntawm hauv - kev pab p122?
Nondestructive Testing (NDT) nyob rau hauv - Kev Pab Pipe Pipe, xws li Creepicium, tawg, thiab suav nrog; Sib nqus Partle kuaj (MT) lossis kev sim ntsuas (PT) rau kev kuaj pom saum npoo thiab ze} npoo qhib tsis xws luag; Macroscopic tshuaj xyuas thiab ntaus nrig kev soj ntsuam: xws li soj ntsuam micrivitation theem hloov thiab kev puas tsuaj los ntawm lub tshuab tsom iav ua yeeb yam; thiab ntsuas cov raj xa dej uas nthuav tawm, txoj kev ncaj qha rau kev soj ntsuam kev sojntsuam tsis zoo.
Dab tsi yog Metalographic Replica thev naus laus zis ua haujlwm, thiab vim li cas nws tseem ceeb?
Metallographic cov thev naus laus zis luam tawm yog ib txoj kev rau kev tsim ib qho "luam" ntawm cov raj xa hluav taws xob yam tsis muaj kev soj ntsuam offline. Cov txheej txheem cuam tshuam nrog thawj polishing saum npoo ntawm cov raj xa khoom siv, tom qab ntawd tsim ib daim qauv ntawm cov npoo micrubtructure siv cov khoom xws li cellulose acetate zaj duab xis. Cov zaj duab xis hloov yog tom qab tshuaj xyuas hauv qab lub tsom duab hauv chav kuaj. Cov thev naus laus zis no tseem ceeb heev vim tias nws tuaj yeem ntsuas ncaj qha rau cov khoom siv tsis zoo, xws li cov pa roj carbide, nag lossis daus, thiab quav ntsej muag. Nws yog qhov taw qhia tseem ceeb kom kwv yees lub neej seem thiab ntsuas cov khoom siv.
Dab tsi yog thawj qhov tsis ua tiav hom ntawm P122 Cov kav hlau nyob rau hauv ntev {}}}}} kub kev pab?
Thawj qhov tsis ua tiav hom P122 hauv qab ntev -}} kev pabcuam kub yog creep tsis ua hauj lwm. Creep yog qhov qeeb yas deformation ntawm cov khoom dhau lub sijhawm nyob hauv qab kub thiab muaj kev ntxhov siab. Tom qab kaum tawm txhiab teev ntawm kev ua haujlwm, 'microstructure dav hnub, thiab me me creep voids daim ntawv ntawm cov ciaj ciam av. Cov voids me me txuas thiab loj hlob mus rau hauv microcacks, thaum kawg ua rau macrocacks thiab cov yeeb nkab tawg. Thermal kev qaug zog tawg (vim tias canclic thermal kev ntxhov siab tsim los ntawm pib thiab kaw) thiab oxidation thinning tseem muaj peev xwm ua tsis tiav.
Yuav ua li cas soj ntsuam lub neej seem ntawm - Kev Pab P122 Cov Kav Pipe?
Kev tshuaj ntsuam lub neej nyob ntawm - Kev Pab P122 Cov Kav Pipe yog cov haujlwm ua haujlwm ua haujlwm. Cov qauv tseem ceeb muaj: Kev ntsuas kev sim ua kom puas tsuaj (tsis tshua muaj kev ntsuas ntawm cov kab mob mic-}} Matin} Miller Intraction despication) Kev nkag siab ntawm kev ua haujlwm tsis zoo los ntawm kev hloov hardness. Kev tshuaj xyuas niaj hnub no feem ntau muab cov qauv kev twv ua ntej, uas tau tshuaj xyuas cov khoom tsis tu ncua thiab mob siab rau lub sijhawm ua haujlwm nyab xeeb.
Vim li cas cov ntu tshuaj xyuas yuav tsum muaj rau P122 Pipelines?
Qhov tsim tsa ntawm Seem Soj Ntsuam Xyuas (feem ntau yog ntu luv ntawm cov khoom siv kub, nruab nrab ntawm qhov chaw muaj kev txhawj xeeb kub) yog kev coj ua zoo tshaj plaws hauv kev tswj hwm lub neej. Nquag txiav cov hnoos qeev me me los ntawm kev soj ntsuam seem rau kev ntsuas kev ua haujlwm zoo thiab microstradation tsis txhob kaw qhov tseem ceeb raj. Qhov no muab cov ntaub ntawv qhia ncaj qha thiab muaj kev ntseeg tau rau kev twv xyuas lub neej tseem ceeb thiab yog qhov kev ua haujlwm tseem ceeb rau kev ua haujlwm muaj kev nyab xeeb thiab kev lag luam muaj zog.
