Feem ntau ntawm O-ring fractures tshwm sim nyob rau hauv overlapped seals.O-rings yog ib hom roj hmab foob nrog ib puag ncig cross-section, cross-section yog O-puab, yog li nws yog hu ua O-ring, lub foob dav siv hauv hydraulic thiab pneumatic sealing tshuab.Thaum cov khoom ntawm lub foob yog nkig, txawm li cas los xij, tsis muaj kev ua raws li cov kev qhia tshwj xeeb thiab kev kho cua sov, kev ntxhov siab tuaj yeem tshwm sim tau yooj yim.Los yog kev xaiv cov khoom siv tsis raug thiab cov qauv qauv tsis tsim los ua kom tau raws li qhov system kub thiab siab tuaj yeem ua rau tawg phenomena.Thaum siv, lub sealing nto kuj tseem ua rau tawg phenomena xws li hydrogen embrittlement.
Yog li O-ring puas tseem tuaj yeem kho tau?Cov lus teb meej yog yog, ua ntej ntawm tag nrho cov, peb yuav tsum ua tib zoo tshem tawm cov kab nrib pleb, txawm me ntsis tawg yuav tsum meej thiab huv si, ncaj pom lub cev gloss, tsis muaj qhov tsis xws luag kom deb li deb.Cov khoom siv plua plav ntau dhau yuav tsum tau muab tshem tawm, primed nrog ib tug zoo plasticity vuam pas nrig thiab ces txiav mus rau hauv ib tug heap los tiv thaiv nws.Yog hais tias lub stacked weld cracking nyiam ntawm cov khoom seem, stacked weld hauv qab txheej siv ib txheej zoo plasticity ntawm kev hloov txheej, tuaj yeem tiv thaiv txheej txheej ntawm kev tawg.Lub vuam yuav tsum yog luv li sai tau kom txo tau qhov kub ntawm qhov chaw cuam tshuam thiab tiv thaiv qhov deformation ntawm sealing nto ntawm lub sealing (seal).Ua ntej cladding weld rau preheat, tom qab vuam rwb thaiv tsev qeeb cua txias, tiv thaiv kom tsis txhob cua hauv chav, los tiv thaiv qhov welded sealing nto.Tom qab qeeb txias, ces ua thiab sib sau.
Ammonia yog ib qho kev tiv thaiv roj uas tsis yog nqus los ntawm cov hlau thiab cov hlau, thiab cov hlau thiab cov hlau tsis huv hauv cov hlau tsis raug tshem tawm.Lub tshav kub cuam tshuam cheeb tsam yog me me thiab tsis ua rau slag thiab porosity nyob rau hauv lub overlay txheej, thiab deformation yog me me.Vuam nozzle thiab sealing nto kom tswj tau lub kaum sab xis loj dua los yog ntsug, kom cov kev daws teeb meem ib txwm muab tso rau hauv kev tiv thaiv ntawm cov roj gram, cov phom vuam los ua ib qho viav vias, cov hlau pub yuav tsum zoo ib yam.Thaum kawg ntawm lub surfacing muab tub lim, me ntsis ntxiv vuam hlau yuav tsum tau ntxiv.Tom qab ntawd maj mam rub tawm thiab tiv thaiv rab phom thaum nqa, tom qab lub pas dej molten txias me ntsis, tso tseg cov pa roj kom tiav kev kho.
Post lub sij hawm: Mar-28-2023
