Q1: Vim li cas thiaj tswj tau qhov zoo thaum lub sij hawm vuam ntau dua rau ERW kav?
A:Hauv ERW ntau lawm, vuam yog cov kauj ruam tseem ceeb tshaj plaws, ua rau ze li 25% ntawm cov teeb meem zoo. Nws yuav tsum muaj kev tswj xyuas meej ntawm qhov tsis zoo xws li cov khoom siv hluav taws xob thiab lub siab, thiab cov vuam seam feem ntau yuav tsum tau ua kom sov- kho kom zoo rau nws cov qauv thiab xyuas kom meej tias nws phim cov khoom ntawm lub hauv paus hlau-5.
Q2: Dab tsi tsis yog -kev kuaj kev puas tsuaj (NDT) txoj kev yog qhov tseem ceeb rau kev ua kom muaj kev ncaj ncees?
A:Cov txheej txheem NDT feem ntau suav nrog kev kuaj ultrasonic txhawm rau txhawm rau txhawm rau txhawm rau sab hauv, ntsuas qhov ntsuas tam sim no rau cov kab nrib pleb, thiab tshuaj xyuas hluav taws xob. Rau cov ntawv thov tseem ceeb, tag nrho - lub cev yeeb nkab kho cua sov thiab kuaj hydrostatic kuj yog cov txheej txheem los xyuas kom meej lub zog thiab xau nruj.
Q3: Hauv daim ntawv thov twg yog LSAW yeeb nkab qhov kev xaiv tshaj ERW?
A:LSAW yog qhov kev xaiv zoo tshaj plaws rau kev thov, loj - daim ntawv teev npe vim nws qhov siab siab - cov kabmob muaj peev xwm thiab lub zog. Qhov no suav nrog qhov ntev -nruab deb siab- cov roj thiab roj xa mus rau cov kav dej, cov kav dej tawm sab nrauv, thiab loj - txoj kab nruab nrab ntawm cov txheej txheem piling-2.
Q4: Qhov twg yog ERW kav feem ntau siv?
A:ERW cov kav dej tau siv dav hauv cov ntawv thov tsis tshua muaj kev cuam tshuam lossis cov uas cuam tshuam nrog qis qis, xws li dej thiab qis - cov pa xa hluav taws xob, cov kav dej, kev tsim kho (scaffolding), thiab ntau yam kev siv tshuab thiab tsheb-10.
Q5: Yuav ua li cas ERW thiab LSAW kav sib piv nyob rau hauv cov nqe lus ntawm corrosion kuj, thiab dab tsi yog cov tswv yim mitigation?
A:Qhov kev tiv thaiv corrosion ntawm ob qho tib si yog txiav txim siab los ntawm ib puag ncig thiab kev tiv thaiv txheej. Txawm li cas los xij, weld seam tuaj yeem yog qhov tsis muaj zog. Ib txoj kev tshawb fawb tsis ntev los no tau pom tias cov nqi xeb tuaj yeem sib txawv raws li cov pob zeb hauv av, nrog cov khoom siv hluav taws xob zoo li cov hlau nplaum ua rau cov nqi siab li 0.110 hli / xyoo-3. Cov tswv yim txo qis suav nrog kev siv cov txheej txheem sab nraud (FBE, 3LPE) thiab cov hauv ob sab hauv, lossis siv cov txheej txheem tiv thaiv cathodic.
