Lanthanated tungsten Alloy qws
Kev piav qhia
Lanthanated tungsten yog oxidized lanthanum doped tungsten alloy, categorized li oxidized tsawg lub ntiaj teb tungsten (W-REO).Thaum dispersed lanthanum oxide ntxiv, lanthanated tungsten qhia txog kev tiv thaiv tshav kub, thermal conductivity, creep resistance, thiab siab recrystallization kub.Cov khoom zoo no pab lanthanated tungsten electrodes ua tiav qhov kev ua tau zoo tshwj xeeb hauv arc pib muaj peev xwm, arc yaig tsis kam, thiab arc stability thiab controllability.
Cov khoom
Tsis tshua muaj ntiaj teb oxide doped tungsten electrodes, xws li W-La2O3 thiab W-CeO2, muaj ntau yam zoo dua vuam yam ntxwv.Tsis tshua muaj ntiaj teb oxide doped tungsten electrodes sawv cev rau cov khoom zoo tshaj plaws ntawm cov electrodes rau Gas Tungsten Arc Vuam (GTAW), uas tseem hu ua Tungsten Inert Gas (TIG) vuam thiab Plasma Arc Vuam (PAW).Cov oxides ntxiv rau tungsten nce qhov kub ntawm recrystallization thiab, nyob rau tib lub sij hawm, txhawb cov emission theem los ntawm kev txo cov electron ua hauj lwm ntawm lub tungsten.
| Oxide Rare Earth Properties Thiab Composition nyob rau hauv tungsten Alloy | ||||
| Hom oxides | THOJ 2 | lwj 2o3 | CeO 2 | y2o3 ua |
| Melting point oC | 3050 (Th: 1755) | 2217 (ib.: 920) | 2600 (Ceev: 798) | 2435 (Yeem: 1526) |
| Thaum tshav kub kub ntawm decomposition.Kj | 1227.6 ib | 1244.7 ib | (523.4) | 1 271.1 |
| Hom oxides tom qab sintering | THOJ 2 | lwj 2o3 | CeO2 (1690) oC | y2o3 ua |
| Cov tshuaj tiv thaiv nrog tungsten | Txo ntawm ThO2by W tshwm sim.forming ntshiab Th. | Tsim tungstate thiab oxytungstate | Tsim tungstate | Tsim tungstate |
| Stability ntawm oxides | Tsawg stability | Kev ruaj ntseg dua | Tsim nyog stability ntawm lub electrode edgebut qis stability ntawm lub ntsis | Siab ruaj khov |
| Oxide hnyav% | 0.5-3 | 1 - 3 | 1 - 3 | 1 - 3 |
Nta
Peb cov khoom lag luam lanthanated tungsten suav nrog WLa10 (La2O3 1-1.2 wt.%), WLa15 (La2O3 1.5-1.7 wt.%), thiab WLa20 (La2O3 2.0-2.3 wt.%).Our lanthanated tungsten rods thiab machined qhov chaw raws li ntau yam specifications cov qauv rau ntau yam kev siv.Peb muab lanthanated tungsten electrodes rau Tungsten Inert Gas (TIG) vuam, welding resistant, thiab plasma txau.Peb kuj muab cov kab loj loj WLa rods siv rau hauv cov khoom siv semiconductor thiab cov cua kub kub.
Daim ntawv thov
WLa TIG vuam electrodes tau yooj yim arc pib thiab ruaj khov heev.WLa plasma spray electrodes muaj qhov ua tau zoo heev rau ob qho tib si arc yaig thiab kub thiab muaj cov thermal conductivity zoo dua.WLa kuj welding electrodes muaj lub siab melting point thiab muab kev ua haujlwm ruaj khov.
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