1. Ultrasonic kuaj (ut) rau lamination nrhiav kom tau nyob rau hauv daim hlau
Kev ntsuas tshuab ultrasonic kuaj (tim)
Shear-yoj siv txhim kho rhiab rhiab rau ze-cov lamints ua ntej txiav lossis vuam.
Acceptance criteria per LR Rules: Laminations >50 hli nyob rau hauv ntev los yog clustered tsis xws luag yuav tsum tsis lees txais.
Pre-Fille kev tshuaj ntsuam xyuas kom meej meej tsuas yog cov paib pub dawb ua rau kev tsim kho.
Txheej Txheem Txhim Kho:
Cov hlau steel los ntawm LR-pom zoo Mills nrog nruj nruj dov thiab txias tswj.
Ua raws li kev txheeb xyuas ua ntej ntau ntau rau cov kev pheej hmoo tuab (25-50mm).
2. RadioGraphic Xeem (RT) rau Weld Kev Tiv Thaiv Tsis Raug
Vuam lr qib E Hlau muaj kev pheej hmoo hydrogen-inducts cracking (hic) thiab tsis muaj qhov tsis zoo. RT ua kom sawv khov Weld ncaj ncees:
Xoo faiv fab / gamma rt tshuaj xyuas pob tw welds rau slag inclusions, porosity, thiab nrib pleb.
Digital RadioBraphy (Dr) muab cov kev daws teeb meem nrawm rau cov kab tuab.
LR-xav tau RT kev pab: Feem ntau 10-20% ntawm cov nqaws, nrog 100% rau cov pob qij txha tseem ceeb.
Txheej Txheem Txhim Kho:
Siv cov hluav taws xob tsawg-hydrogen) (AWS E7018) thiab preheat (100-150 degree) los tiv thaiv kom tsis txhob muaj hic.
Thov kev kho kom sov-weld
3. Cov txheej txheem tswj kom tsis txhob muaj hydrogen embrittlement
LR Qib E Hlau yog raug rau hydrogen nrib pleb thaum lub sij hawm vuam lossis ua haujlwm txias. Kev sib txuas lus kev kawm suav nrog:
Diffusible hydrogen kuaj ntawm weld consumables (<5ml/100g per LR standards).
Preheat siv thermocouples kom ntseeg tau qhov kev kub ntxhov.
Ci hluav taws xob ntawm 250-350℃ua ntej siv kom tshem tawm noo noo.
NDT thaub qab:
Phased-array rau ut post-vuam los ntes micro-tawg tsis pom ntawm RT.
4. Opves txiav & kev sib sau los txo kev ntxhov siab ntau
Thermal txiav (Ntshav / Oxy-roj) thiab txias dabtsi yog tsim tau qhov tsis xws luag:
Laser-ut cov tshev txiav txiav rau micro-kab nrib pleb ua ntej vuam.
Kev tswj hwm txoj kev tswj hwm tiv thaiv cov nqi los tiv thaiv ntau dhau ntawm cov ntu nkhaus.
Txheej Txheem Txhim Kho:
Siv waterjet txiav rau cov paib tuab kom tsis txhob muaj qhov kub-cuam tshuam cheeb tsam (haz) tawg.
Kev Nyuaj Siab-nyem annealing tom qab txias tsim rau cov khoom tseem ceeb.
5. Cov tshuaj soj ntsuam weld & ndt kev sib xyaw
Txhawm rau txo qis tib neeg yuam kev hauv phau ntawv tshuaj xyuas:
Tiag tiag-lub sij hawm weld saib xyuas cov tswv yim tshav kub, ceev, thiab signment.
Caw kaw lus rau cov neeg nkag mus kuaj ntev seams xwm yeem.
Cov ntaub ntawv kev sib xyaw ua ke ua ke ua ke ua ke, RT, thiab kuaj pom rau kev ntseeg siab dua.
LR ua raws cai:
Weld Cov Txheej Txheem Weld tsim nyog (WPQR) yuav tsum ua kom pom cov txiaj ntsig tau ua kom muaj qhov muaj lr kev saib xyuas.
