Kev nyab xeeb siab tempered lub tsev iav tshav kub soaked tempered iav

Self-detonation ntawm tempered iav
Tempered iavmuaj qhov tsis xws luag ntawm "tus kheej-detonation" - tempered iav nyob rau hauv qhov tsis muaj qhov ncaj qha sab nraud ua thiab txiav qhov tshwm sim tawg. Nyob rau hauv cov txheej txheem ntawm tempering ua, cia, tsheb thauj mus los, installation, siv, thiab lwm yam., tempering iav nws tus kheej tawg tuaj yeem tshwm sim. Niaj hnubntab iavCov txheej txheem tsim khoom tsis tuaj yeem tshem tawm tag nrho cov muaj nickel sulfide (NiS) impurities, yog li lub tempering self-detonation yog inevitable, uas yog ib tug inherent yam ntxwv ntawm tempered iav. Tam sim no, tsis muaj tus qauv ntawm ib lub teb chaws hauv ntiaj teb los txwv qhov kev tso tawm tus kheej ntawm cov iav toughened. Raws li kev paub dhau los ntawm Tuam Tshoj txoj kev lag luam iav, tus kheej-detonation tus nqi ntawm cov iav toughened zoo tib yam yog li 3 ~ 5‰. Txhawm rau kom tsis txhob muaj qhov tshwm sim ntawm tus kheej tawg ntawm cov iav toughened siv nyob rau hauv cov haujlwm tseem ceeb thiab qhov chaw tseem ceeb, kev ntsuas kub kom sov tuaj yeem ua ntej.

Thaum tshav kub kub so test kuj tseem hu ua homogeneous kev kho mob, feem ntau hu ua "detonation".Cov iav tau hu uakub dip iav. Kev ntsuas kub kom sov yog kom sov lubiav temperedmus rau 290 ℃ ± 10 ℃ nyob rau hauv "homogenizing rauv", thiab tuav nws rau ib lub sij hawm, kom cov npib tsib xee sulfide (NiS) nyob rau hauv lub tempered iav sai sai ua kom tiav cov siv lead ua theem transformation kom ceev nws expansion txheej txheem, thiaj li hais tias tus thawj siv. Tom qab cov iav tempered tuaj yeem tawg ua ntej ua ntej hauv lub Hoobkas "homogenizing furnace", Yog li txo kev siv cov iav tempered tom qab kev teeb tsa tus kheej-detonation, nce kev nyab xeeb. Tom qab ntsuas sov so, qhov ntsuas tus kheej ntawm cov iav tempered tuaj yeem raug txo kom txog li ib ntawm 10,000, tab sis qhov ntsuas kub ntsuas kub tsis tuaj yeem lav tias lub iav tempered kiag li tsis tshwm sim nws tus kheej detonation, tab sis tsuas yog txo qhov tshwm sim ntawm tus kheej detonation. , thiab ua tau daws qhov teeb meem ntawm tus kheej-detonation uas tau plagued tag nrho cov tog hauv qhov project. Yog li ntawd, kev ntsuas cua sov yog txoj hauv kev zoo tshaj plaws los daws qhov teeb meem ntawm tus kheej-detonation raws li cov txheej txheem tam sim no tau lees paub hauv ntiaj teb.