ʻO ke koʻokoʻo tungsten Alloy Lanthanated
wehewehe
ʻO ka Lanthanated tungsten he lanthanum doped tungsten alloy, i hoʻokaʻawale ʻia e like me ka oxidized rare earth tungsten (W-REO).Ke hoʻohui ʻia ka lanthanum oxide i hoʻopuehu ʻia, hōʻike ka tungsten lanthanated i ka hoʻoikaika ʻana i ka wela, ka conductivity thermal, ke kū ʻana o nā kolo, a me kahi mahana recrystallization kiʻekiʻe.ʻO kēia mau waiwai koʻikoʻi e kōkua i nā electrodes tungsten lanthanated e hoʻokō i ka hana ʻokoʻa i ka hiki ke hoʻomaka arc, arc erosion resistance, arc stability and controllability.
Waiwai
Loaʻa nā hiʻohiʻona hoʻoheheʻe ʻoi aku ka maikaʻi o ka honua oxide doped tungsten electrodes, e like me W-La2O3 a me W-CeO2.ʻO nā electrodes tungsten oxide doped nā mea maikaʻi loa ma waena o nā electrodes no Gas Tungsten Arc Welding (GTAW), ʻo ia hoʻi i ʻike ʻia ʻo Tungsten Inert Gas (TIG) welding a me Plasma Arc Welding (PAW).ʻO nā oxides i hoʻohui ʻia i ka tungsten ua hoʻonui i ka mahana recrystallization a, i ka manawa like, hoʻonui i ka pae hoʻokuʻu ma ka hoʻohaʻahaʻa ʻana i ka hana hana electron o ka tungsten.
| Oxide Rare Earth Properties a me ka hoʻohui ʻana i ka Tungsten Alloy | ||||
| Ke ʻano o nā oxides | ThO2 | La2O3 | CeO2 | Y2O3 |
| Lae hehee oC | 3050(Th: 1755) | 2217(La: 920) | 2600(Ce: 798) | 2435(Y: 1526) |
| Ka wela o ka palaho.Kj | 1227.6 | 1244.7 | (523.4) | 1271.1 |
| Ke ʻano o nā oxides ma hope o ka sintering | ThO2 | La2O3 | CeO2(1690)oC | Y2O3 |
| ʻO ka pane me ka tungsten | Hoʻemi ʻia ka ThO2by W. | Hoʻokumu i ka tungstate a me ka oxytungstate | Ka hana ʻana i ka tungstate | Ka hana ʻana i ka tungstate |
| Paʻa o nā oxides | Paʻa haʻahaʻa | Paʻa kiʻekiʻe | Paʻa kūpono ma ka ʻaoʻao electrode akā paʻa haʻahaʻa ma ka piko | Paʻa kiʻekiʻe |
| ʻO ke kaumaha oxide % | 0.5 - 3 | 1 - 3 | 1 - 3 | 1 - 3 |
Nā hiʻohiʻona
ʻO kā mākou mau huahana tungsten lanthanated WLa10 (La2O3 1-1.2 wt.%), WLa15 (La2O3 1.5-1.7 wt.%), a me WLa20 (La2O3 2.0-2.3 wt.%).ʻO kā mākou lanthanated tungsten koʻokoʻo a me nā ʻāpana mīkini e hālāwai me nā kikoʻī like ʻole nā kūlana no kahi ākea o nā noi.Hāʻawi mākou i nā electrodes tungsten lanthanated no ka hoʻoheheʻe ʻana o Tungsten Inert Gas (TIG), ka hoʻoheheʻe kūʻokoʻa, a me ka pīpī plasma.Hāʻawi pū mākou i nā koʻokoʻo WLa anawaena nui no ka hoʻohana ʻana i nā ʻāpana semiconductor a me nā umu wela wela.
Nā noi
ʻO WLa TIG welding electrodes he maʻalahi ka hoʻomaka ʻana a paʻa loa.Hōʻike ka WLa plasma spray electrodes i ke kūpaʻa maikaʻi loa i ka arc erosion a me ka wela kiʻekiʻe a loaʻa iā ia ka conductivity wela.He wahi hoʻoheheʻe kiʻekiʻe ka WLa resistance welding electrodes a hāʻawi i ke kūpaʻa hana koʻikoʻi.
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