Rob Koltz naDave Meyer vanokurukura nezve ferritic (magnetic) uye austenitic (isina magineti) maitiro emawelded stainless steels.Getty Images
Mubvunzo: Ndiri welding tangi yakagadzirwa ne316 stainless steel, iyo isiri-magnetic.Ndakatanga kupinza matangi emvura newaya yeER316L uye ndakaona kuti welds imagnetic. Pane zvandiri kuita here?
A: Iwe zvimwe hauna chekunetsekana nazvo.Zvakajairika kuti mawelds akagadzirwa neER316L akwezve magineti, uye zvinowanzoitika kune akakungurutswa 316 mashiti nemashiti kuti asakwezve magineti.
Iron alloys iripo muzvikamu zvakasiyana-siyana zvichienderana netembiricha uye alloying pamwero, izvo zvinoreva kuti maatomu ari musimbi akarongwa zvakasiyana.Zvikamu zviviri zvakajairika ndezve austenite uye ferrite.Austenite isiri-magnetic nepo ferrite iine magineti.
Mune yakajairwa kabhoni simbi, austenite chikamu chinowanikwa chete pakudziya kwakanyanya, uye sezvo simbi inotonhora, austenite inoshanduka kuita ferrite.
Magiredhi akati wandei esimbi isina tsvina, anosanganisira 304 uye 316, anonzi austenitic simbi isina tsvina nekuti chikamu chavo chikuru chiri austenite pakamuri tembiricha.Idzi simbi dzisina tsvina dzinosimba kuita ferrite uye dzinoshanduka kuita austenite kana dzatonhora.
Pakati pezana remakore rechi20, zvakaonekwa kuti kana welding austenitic stainless steels, kuvapo kweimwe ferrite mu weld simbi kunodzivirira microcracking (kutsemuka) inogona kuitika kana simbi yekuzadza iri zvachose austenitic.Kudzivirira microcracking, simbi dzakawanda dzekuzadza kwe austenitic stainless steels dzakagadzirirwa kuva ne 3% kusvika ku20% inokwezva magineti. Stainless simbi welds inogonawo kuyera mwero wemagnetic kukwezva.
316 ine mamwe maapplication apo kuderedza magineti eiyo weld kwakakosha, asi izvi hazviwanzo kudiwa mumatangi.Ndinovimba unogona kuenderera mberi nekutengesa pasina kunetsekana.
WELDER, yaichimbova Practical Welding Nhasi, inoratidza vanhu chaivo vanogadzira zvigadzirwa zvatinoshandisa uye kushanda nazvo zuva nezuva. Magazini ino yakashandira nharaunda yewelding muNorth America kwemakore anopfuura 20.
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