Cov nyhuv ntawm Cov Txheej Txheem Txias Rolling Rau Weld Lub Koom Haum Thiab Cov Khoom Ntawm Muaj Cov Ntshiab Titanium Phaj

Muaj cov ntshiab titanium muaj kev tiv thaiv zoo heev hauv oxidizing thiab nruab nrab xov xwm, thiab tau siv dav hauv ntau yam xws li petrochemical thiab ntsev ntau lawm. Nws tau raug tshaj tawm nyob rau hauv cov ntaub ntawv, muaj ntshiab titanium los ntawm argon arc vuam vuam yuav muaj nyob rau hauv lub melt pas dej ua ke cheeb tsam, tshav kub cuam tshuam cheeb tsam, ob cheeb tsam ntawm lub koom haum thiab cov niam txiv cov ntaub ntawv lub koom haum yog txawv heev, thaum lub melt pas dej ua ke cheeb tsam thiab cov Thaum tshav kub kub cuam tshuam cheeb tsam yuav tshwm sim nyob rau hauv qhov nyiam corrosion phenomenon. Cov plasma vuam muaj qhov zoo ntawm lub zog siab ceev, kab zog, kev ua haujlwm zoo thiab lwm yam, nrog rau txoj kev no ntawm vuam ntshiab titanium phaj, tuaj yeem kov yeej ib leeg dhau tungsten argon arc vuam vim tias cov tungsten electrode los ntawm lub pas dej molten los ze zog rau tungsten. electrode corrosion yuav tshwm sim, yog li ntawd cov weld seeps rau hauv tungsten inclusions thiab lwm yam ua tsis tau.
Lub tuam txhab daim ntawv thiab sawb cog coil ntau lawm kab siv cov ntawv vuam tshuab los tsim cov titanium coil, yog li yuav muaj ntau yam deformed welds nyob rau hauv cov khoom txias dov coil, cov deformed welds tuaj yeem siv nrog rau lwm qhov ntawm cov kauj ua ke nrog cov ib txwm siv ntawm lub kauj muaj qhov tseem ceeb ntawm kev siv lub kauj. Cov kws tshawb fawb ntawm thaj chaw weld ua thiab cov khoom siv hauv cheeb tsam lub koom haum, kev tshawb fawb kev ua haujlwm, tsom rau kev tsim cov welded coils rau kev tsim cov khoom siv siv.

Cov khoom siv sim yog 3.5mm tuab muaj ntshiab titanium phaj, qib TA1. siv Nertamatic 450 tsis siv neeg plasma vuam tshuab, ob lub xeev annealed ntshiab titanium phaj welded rau hauv ib daim ntawv ntawm txias dov slab nrog qhov ntev ntawm 3.5mm × 1350mm × 1520mm. XXH2005 X-ray flaw detector ntawm lub vuam tom qab vuam cov qauv phaj weld non-destructive flaw detection, thiab metallurgical microscope los soj ntsuam cov khoom hauv paus thiab weld microstructure. Tsim nyog los ntawm qhov tsis txaus ntseeg thiab tshuaj xyuas cov slab nyob rau hauv 1780mm txias dov zeb rau ob txheej txheem dov: thawj dov deformation ntawm 43%, phaj thickness txo rau 2 hli, dov 680 degree × 30min / AC annealing kho; qhov thib ob dov deformation ntawm 50%, kom tau lub thickness ntawm 1 hli ntawm cov khoom tiav phaj, dov 650 degree × 30min / AC annealing kev kho mob.
X-ray uas tsis yog-kev puas tsuaj rau kev kuaj xyuas ntawm cov phaj vuam ua haujlwm ntawm ob txoj kev dov; metallographic microstructure kev soj ntsuam ntawm ob txheej txheem dov ntawm lub xeev txias dov thiab lub xeev annealed ntawm cov qauv weld; ob txheej txheem dov ntawm lub xeev annealed ntawm cov qauv rau hardness thiab chav ntsuas kub txhua yam khoom kuaj; Kev siv Meters ETC1604 cupping tester rau lub xeev annealed ntawm lub phaj tiav rau kev kuaj cupping, tshuaj xyuas cov txheej txheem kev ua haujlwm; kev siv PASTAT-2273 electrochemical synthesis test. 2273 electrochemical integrated test system (reference electrode siv saturated calomel electrode, auxiliary electrode siv platinum electrode, corrosion solution is 3.5% NaCl aqueous solution), anodic polarization test on the annealed state of the tiav sheet to examine the corrosion resistance. Cov txiaj ntsig kuaj:
(1) Lub vuam zoo ntawm cov ntshiab titanium phaj tom qab plasma vuam thiab cov ntshiab titanium phaj tom qab ob zaug ntawm txias deformation thiab annealing ua tau raws li qhov yuav tsum tau ntawm JB / T 4730.2 tus qauv Ⅰ.
(2) Ob qhov txias deformation phaj annealed weld ua cheeb tsam grain loj me me me dua li cov khoom siv hauv paus, muaj zog plasticity me ntsis zoo dua, Vickers microhardness kuj me ntsis siab dua.
(3) Tom qab annealing los ntawm ob txoj kev dov txias deformation, elongation ntawm welded seam ua cheeb tsam ntawm lub phaj tsis ntau txawv ntawm cov khoom siv hauv paus, thiab tus nqi cupping zoo sib xws, uas muaj cov txheej txheem sib piv nrog cov hauv paus. khoom.
(4) Tus cwj pwm anodic polarization ntawm thaj chaw ua haujlwm vuam tsis txawv txav ntawm cov khoom siv niam txiv, thiab kev tiv thaiv corrosion ntawm ob hauv 3.5% NaCl aqueous tov yog qhov zoo ib yam.