Nā Koʻokoʻo Alloy Copper Tungsten
wehewehe
Ua ʻike ʻia ʻo Copper tungsten (CuW, WCu) ma ke ʻano he conductive a me ka erasion resistant composite material i hoʻohana nui ʻia e like me ke keleawe tungsten electrodes i ka EDM machining a me nā noi kuʻi kūʻē, nā pilina uila i nā noi uila kiʻekiʻe, a me nā wela wela a me nā mea uila uila ʻē aʻe. i nā hana wela.
ʻO nā lakio tungsten / keleawe maʻamau ka WCu 70/30, WCu 75/25, a me WCu 80/20.ʻO nā haku mele ʻē aʻe he tungsten/copper 50/50, 60/40, a me 90/10.ʻO ka laulā o nā haku mele i loaʻa mai Cu 50 wt.% a i Cu 90 wt.%.ʻO kā mākou huahana keleawe tungsten me ke koʻokoʻo tungsten keleawe, ka foil, ka pepa, ka pā, ka paipu, ke koʻokoʻo keleawe tungsten, a me nā ʻāpana mīkini.
Waiwai
Huina | ʻO ka mānoanoa | Hoʻolima Uila | CTE | ʻO ka hoʻoili wela | ʻoʻoleʻa | Wela Kūikawā |
g/cm³ | IACS % Min. | 10-6K-1 | W/m · K-1 | HRB Min. | J/g · K | |
WCU 50/50 | 12.2 | 66.1 | 12.5 | 310 | 81 | 0.259 |
WCU 60/40 | 13.7 | 55.2 | 11.8 | 280 | 87 | 0.230 |
WCU 70/30 | 14.0 | 52.1 | 9.1 | 230 | 95 | 0.209 |
WCU 75/25 | 14.8 | 45.2 | 8.2 | 220 | 99 | 0.196 |
WCU 80/20 | 15.6 | 43 | 7.5 | 200 | 102 | 0.183 |
WCU 85/15 | 16.4 | 37.4 | 7.0 | 190 | 103 | 0.171 |
WCU 90/10 | 16.75 | 32.5 | 6.4 | 180 | 107 | 0.158 |
Nā hiʻohiʻona
I ka wā o ka hana ʻana o ke keleawe tungsten alloy, ua paʻi ʻia ka tungsten maʻemaʻe kiʻekiʻe, sintered a laila hoʻokomo ʻia e ke keleawe ʻole oxygen ma hope o nā ʻanuʻu hoʻohui.Hāʻawi ka hui keleawe tungsten i kahi microstructure homogeneous a me ka pae haʻahaʻa o ka porosity.ʻO ka hui pū ʻana o ka conductivity keleawe me ke kiʻekiʻe kiʻekiʻe o ka tungsten, paʻakikī, a me ka helu hoʻoheheʻe kiʻekiʻe e hana i kahi hui me nā waiwai koʻikoʻi o nā mea ʻelua.Hoʻohanohano ʻia ka tungsten copper-infiltrated i nā waiwai e like me ke kūpaʻa kiʻekiʻe i ka wela kiʻekiʻe a me ka arc-erosion, maikaʻi loa ka wela a me ka conductivity uila a me kahi CTE haʻahaʻa (coefficient of thermal).
ʻO ka waiwai kino a me ka mechanical a me ka helu heheʻe o ka mea keleawe tungsten e hoʻopili maikaʻi ʻia a i ʻole e hoʻololi i ka nui o ka tungsten keleawe i loko o ka composite.No ka laʻana, ʻoiai e piʻi mālie ana ka ʻike keleawe, ʻoi aku ka ikaika o ka uila a me ka wela a me ka hoʻonui ʻana i ka wela.Eia nō naʻe, e hoʻonāwaliwali ʻia ka mānoanoa, ka pale uila, ka paʻakikī a me ka ikaika ke hoʻokomo ʻia me ka liʻiliʻi o ke keleawe.No laila, ʻo kahi hoʻohui kemika kūpono ka mea nui loa i ka wā e noʻonoʻo ai i ke keleawe tungsten no ka pono noi kikoʻī.
Hoʻonui wela haʻahaʻa
Kiʻekiʻe wela a me ka uila conductivity
Kūʻē arc kiʻekiʻe
ʻai haʻahaʻa
Nā noi
Ua hoʻonui nui ʻia ka hoʻohana ʻana o Tungsten copper (W-Cu) i nā kula a me nā noi ma muli o kāna mau ʻano mechanical a me thermophysical.Hōʻike nā mea keleawe Tungsten i ka hana koʻikoʻi ma nā ʻano o ka paʻakikī, ka ikaika, ka conductivity, ka wela kiʻekiʻe, a me ke kūpaʻa ʻana o ke arc.Ua hoʻohana nui ʻia no ka hana ʻana i nā mea hoʻopili uila, nā mea hoʻoheheʻe wela a me nā mea hoʻolaha, nā electrodes EDM die-sinking a me nā nozzles injection.