Vuandlalo byo pfalela bya tivalvu ta nsimbi ( .DC341X-16 Valve ya phaphatani ya eccentric leyi nga na ti flang timbirhi) hi ntolovelo yi endliwa hi ( .Valve ya TWS)ku welda ehenhla ka misava. Switirhisiwa leswi tirhisiwaka eka valve surfacing swi avanyisiwile hi 4 wa swiyenge leswikulu kuya hi muxaka wa alloy, kunga ti cobalt-based alloys, nickel-based alloys, iron-based alloys, na copper-based alloys. Switirhisiwa leswi swa alloy swi endliwa ti electrodes, ti wire to welda (ku katsa na ti wire ta flux-cored), ti fluxes (ku katsa na ti transition alloy fluxes) na ti alloy powders, na swin’wana, naswona swi endliwa ehenhla hi manual arc welding, oxyacetylene flame welding, tungsten argon arc welding, submerged arc automatic welding na plasma arc welding.
Ku hlawuriwa ka switirhisiwa swo pfalela valve swa le henhla swa le henhla (DC341X3-10Valve ya phaphatani ya eccentric leyi nga na ti flang timbirhiring yo pfalela miri) hi ntolovelo yi sekeriwe eka mahiselo ya ku tirhisiwa, ntshikelelo wa ntirho na ku bola ka valve, kumbe muxaka wa valve, xivumbeko xa vuandlalo byo pfalela, ntshikelelo wo karhi wa ku pfala na ntshikelelo wo karhi lowu pfumeleriwaka, kumbe swiyimo swa vuhumelerisi na vumaki bya bindzu, vuswikoti byo lulamisa switirhisiwa na vuswikoti bya xithekiniki bya ku endla ehenhla na swilaveko swa vatirhisi. Dizayini leyi antswisiweke na yona yifanele ku amukeriwa, naswona switirhisiwa swale henhla swo pfalela leswingana nxavo wale hansi, endlelo ro olova ra vuhumelerisi na vukorhokeri byale henhla bya vuhumelerisi swifanele ku hlawuriwa ehansi ka xiyimo xo enerisa matirhelo ya (D341X3-16 Valv ya phaphatani leri nga exikarhi ka matlhelo mambirhie )valve ya xirhendzevutani.
Swin’wana swa switirhisiwa leswi tirhisiwaka ku endla surfacing ya valve sealing surfaces swina xivumbeko xin’we ntsena, kumbe electrode kumbe welding wire kumbe alloy powder, hikokwalaho kunga tirhisiwa ndlela yin’we ntsena ya surfacing. Tin’wana ti endliwa ti welda tinhonga, tintambhu to welda kumbe ti powder ta alloy hi swivumbeko swo hambana, ku fana na stellite l 6 alloy, tinhonga to welda hi vumbirhi bya tona (D802), tintambhu to welda (HS111) na ti powder ta alloy (PT2102), kutani manual arc welding, oxy2acetylene flame welding, tungsten argon arc welding, wire feeding plasma arc welding na powder plasma arc welding na tindlela tin’wana tinga tirhisiwa eka surfacing welding. Loko hi hlawula switirhisiwa swa le henhla swa vuandlalo byo pfalela bya valve, hi fanele ku tekela enhlokweni ku hlawuriwa ka ndlela yo pfalela ehenhla hi thekinoloji leyi vupfeke, endlelo ro olova na vukorhokeri bya le henhla bya vuhumelerisi bya bindzu, leswaku hi tiyisisa ku hetiseka ka matirhelo ya rona eka vumaki bya le henhla bya vuandlalo byo pfalela.
Vuandlalo byo pfalela i xiphemu xa nkoka xa valve (D371X-10 Valava ya phaphatani ra wafer), naswona khwalithi ya yona yi khumba vutomi bya ntirho wa valve hi ku kongoma. Ku hlawuriwa loku ringaneleke ka swilo swa vuandlalo byo pfalela valve i yin’wana ya tindlela ta nkoka to antswisa vutomi bya vutirheli bya valve. Ku nga twisisani swifanele ku papalatiwa eka ku hlawuriwa ka switirhisiwa swale henhla leswi pfalaka valve.
Mavunwa 1: Ku tiya ka valve ( .D371X3-16C) sealing surface material yi le henhla, naswona ku tiya ka yona ku onhaka i swinene.
Swikambelo swikombisa leswaku ku tiya ka ku onhaka ka valve sealing surface material swikumiwa hi microstructure ya switirhisiwa swa nsimbi. Switirhisiwa swin’wana swa nsimbi leswingana austenite tani hi matrix xikan’we na xivumbeko lexintsongo xa hard phase aswi tiya swinene, kambe ku tiya ka swona ka ku onhaka swikahle swinene. Vuandlalo byo pfalela bya valve byina ku tiya lokukulu kokarhi ku papalata kuvaviseka naku khwaxa hi swilo swo tiya eka medium. Swilo hinkwaswo swi tekeriwa enhlokweni, ntikelo wa ku tiya HRC35 ~ 45 wu fanerile.
Mavunwa ya 2: Ntsengo wa swilo leswi pfalaka valve swa le henhla wu le henhla, naswona matirhelo ya wona i ya kahle.
Ntsengo wa nchumu i xihlawulekisi xa wona xa nhundzu, kasi matirhelo ya nchumu i xihlawulekisi xa wona xa xiviri, naswona a ku na vuxaka lebyi lavekaka exikarhi ka leswimbirhi. Nsimbi ya cobalt eka ti cobalt-based alloys yihuma eka swilo leswi humaka ematikweni mambe, naswona nxavo wule henhla, hikokwalaho nxavo wa switirhisiwa swa cobalt-based alloy wule henhla. Ti alloys leti endliweke hi cobalt titiveka hiku tiya kahle eka mahiselo yale henhla, kasi loko titirhisiwa eka swiyimo swa ntolovelo na mahiselo yale xikarhi, nxavo/matirhelo yale henhla swinene. Eka ku hlawuriwa ka switirhisiwa swa valve sealing surface, switirhisiwa leswingana nxavo wale hansi/matirhelo swifanele ku hlawuriwa.
Mavunwa ya 3: Loko xitirhisiwa xale henhla xo pfalela xa valve xiri na ku tiya ka kahle eka ku bola eka xitirhisiwa xo tiya xa ku bola, xifanele ku pfumelelana na switirhisiwa swin’wana swo bola.
Ku tiya ka swilo swa nsimbi swina endlelo ra swona ro rharhangana, nchumu wuna ku tiya ka kahle eka corrosion eka xitirhisiwa xo tiya xa corrosive, naswona swiyimo swa cinca nyana, kufana na mahiselo kumbe nhlayo yale xikarhi, ku tiya ka corrosion swa cinciwa. Eka xitirhisiwa xin’wana xa corrosive, ku tiya ka corrosion swa hambana swinene. Ku tiya ka ku bola ka switirhisiwa swa nsimbi swinga tiviwa ntsena hiku ringeta, naswona swiyimo leswi faneleke swifanele ku twisisiwa kuva swikomberiwa kusuka eka switirhisiwa leswi faneleke, naswona aswifanelanga ku lomba hi mahlo.
Nkarhi wa poso: Mar-01-2025
