Muaj ob hom kev kho cua sov siv hauv cov hlab ntsha siab:
Tso lus
Muaj ob hom kev kho cua sov siv hauv cov hlab ntsha siab:
Ib qho yog kev kho cua sov los txhim kho cov khoom siv kho tshuab, thiab lwm qhov yog kev kho cua sov tom qab vuam (PWHT). Kev hais lus dav dav, kev kho cua sov tom qab vuam yog kev kho cua sov ntawm thaj chaw welded lossis welded tivthaiv tom qab lub workpiece yog welded. Cov ntsiab lus muaj xws li kev ntxhov siab annealing, ua kom tiav annealing, solid solution, normalizing, normalizing and tempering, tempering, low temperature stress relief, precipitation heat treatment, thiab lwm yam. yog, txhawm rau txhim kho kev ua haujlwm ntawm thaj chaw vuam thiab tshem tawm cov teeb meem cuam tshuam xws li vuam seem kev nyuaj siab, thiaj li ua kom muaj kev sib haum xeeb thiab tag nrho cov cua sov ntawm thaj chaw vuam thiab lwm yam hauv qab cov hlau hloov pauv kub 2, Thiab tom qab ntawd cov txheej txheem ntawm cov cua txias. . Hauv ntau qhov xwm txheej, kev kho cua sov tom qab tau sib tham yog qhov tseem ceeb tshaj plaws tom qab vuam kev ntxhov siab kho cua sov.
Qhov kev ntxhov siab tsim tawm hauv qhov vuam yuav tsum tau daws los ntawm kev kho cua sov
Tom qab lub vuam yog welded ntawm qhov kub thiab txias, kev ntxhov siab yuav raug tsim los ntawm kev sib koom ua ke. Rau cov kev hloov hauv cov qauv thiab kev ua tau zoo ntawm thaj chaw vuam tshwm sim los ntawm vuam, nws yuav ua rau muaj kev ntxhov siab nyob hauv cov vuam thiab kev tsim thiab kev loj hlob ntawm kev ntxhov siab corrosion tawg los ntawm qhov no, thiab annealing tshav kub kev kho mob yuav tsum tau. Yuav nrog. Thaum lub nkoj siab yog welded, thaum qhov kub thiab txias gradient nrog qhov sib txawv ntawm qhov kub siab tshaj 100 degrees tshwm sim nyob rau hauv qhov chaw nyob ib sab ntawm cov khoom siv hauv paus, nws yuav ua rau cov yas tsis sib xws hauv cov hlau ferritic lossis lwm yam khoom sib npaug, thiab tom qab txias. txheej txheem, A residual stress field nrog ib tug ncov kev nyuaj siab mus txog lub yield point yog generated.
Vim tias qhov tsis sib xws ntawm cov yas yas hauv kev tsim cov hlab ntsha uas ua rau cov khoom seem hauv cov khoom siv elastic, cov residual strain nyob rau hauv lub quenching rauv ceev ceev yuav ua tau txhua yam (feem ntau yog txias ua hauj lwm xws li txias dov, txias orthopedics, thiab lwm yam) thiab thermal (tsuas yog vuam txheej txheem). Tsim), los yog kev sib xyaw ntawm ob qho tib si, uas yog, vim li cas thermomechanical.
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