ʻO ka pahu tungsten molybdenum ke kīʻaha W ke kīʻaha Mo ke kīʻaha
Hōʻike Huahana
Ma ke ʻano he metala nonferrous, ʻoi aku ka ikaika a me ka paʻakikī o ka tungsten.Ma muli o kēia mau hiʻohiʻona 2.Main, ua hoʻohanaʻia ka tungsten carbide me ka paʻakikī kiʻekiʻe a me ke kū'ē kū'ē ikaika i kaʻokiʻana i nā mea hana a me nā mea hana mining ma kahi nui.
ʻO Tungsten ka metala refractory me ka helu hoʻoheheʻe kiʻekiʻe.ʻO nā metala maʻamau me kahi helu hoʻoheheʻe ʻoi aku ka kiʻekiʻe ma mua o 1650 ℃ a me kahi mālama a me kahi helu hoʻoheheʻe ʻoi aku ka kiʻekiʻe ma mua o ka helu heheʻe o zirconium (1852 ℃) i kapa ʻia he metala refractory.ʻO nā metala refractory maʻamau he tungsten, tantalum, molybdenum, niobium, hafnium, chromium, vanadium, zirconium, a me titanium.Ma ke ʻano he metala refractory, ʻo ka mea nui loa o ka tungsten ʻo ia ka ikaika kiʻekiʻe kiʻekiʻe a me ke kūpaʻa corrosion maikaʻi i nā metala alkali a me ka mahu.ʻIke wale ia ma luna o 1000 ℃.ʻO ka molybdenum a me ka tungsten he mau mea like loa, kahi paila koʻikoʻi a me ka conductivity uila, liʻiliʻi linear thermal expansion coefficient, a maʻalahi hoʻi e hana ma mua o ka tungsten.
ʻOi aku ka maikaʻi o ka hoʻoili ʻana o ka wela o ka metala molybdenum [135 watts / (m · open)] me ka wela kikoʻī [0.276 kJ / (kg · wehe)], e lilo ia i koho kūlohelohe e kūʻē i ka haʻalulu wela a me ka luhi wela.ʻO kona helu hoʻoheheʻe he 2620 ℃, ke kula kiʻekiʻe i ka tungsten a me ka tantalum, akā ʻoi aku ka haʻahaʻa o kona density, no laila ʻoi aku kona ikaika kūikawā (ikaika / density) ma mua o tungsten, tantalum a me nā metala ʻē aʻe, ʻoi aku ka maikaʻi o nā noi me nā koi koʻikoʻi koʻikoʻi.He kiʻekiʻe ka ikaika o ka Molybdenum ma 1,200 ℃.
Nā hiʻohiʻona nui
He kiʻekiʻe ka helu heheʻe o Tungsten, he haʻahaʻa haʻahaʻa haʻahaʻa, a he liʻiliʻi ka hoʻoheheʻe ʻana.Paʻa loa nā waiwai kemika o ka tungsten, ʻaʻole reactive me ka ea a me ka wai i ka mahana o ka lumi, hiki ʻole ke hoʻokaʻawale i ka waika hydrochloric, sulfuric acid, nitric acid a me ka hopena alkali.E hoʻoheheʻe i loko o ka wai aliʻi a me ka hui ʻana o ka waikawa nitric a me ka waika hydrofluoric.Ma ke kiʻekiʻe wela, hiki ke hui pū me ka chlorine, bromine, iodine, carbon, nitrogen, sulfur, akā ʻaʻole me ka hydrogenation.ʻO ka helu hoʻoheheʻe tungsten maʻemaʻe a hiki i 3410 ℃, aia nō ka ikaika kiʻekiʻe ma kahi o 1300 ℃, aʻo ka tungsten-based alloy he ikaika kiʻekiʻe ma kahi o 1800 ℃ a he kūpaʻa maikaʻi i ka hopena wela.
Hoʻohana Huahana
Ma muli o ke kiʻekiʻe kiʻekiʻe o ka tungsten, Paʻa paʻa kiʻekiʻe, No laila, ua lilo ia i mea kūpono no ka hana ʻana i nā alloys gravity kikoʻī kiʻekiʻe, ua māhele ʻia kēia mau ʻāpana gravity kiʻekiʻe i W-Ni-Fe, W-Ni-Cu, W-Co, ʻO W-WC-Cu, W-Ag a me nā moʻo nui ʻē aʻe, ʻO kēia ʻano huila ka2.Main Hiʻonas o ke kiʻekiʻe lākiō, kiʻekiʻe ikaika, ikaika absorption radiation hiki, nui thermal conductivity, liʻiliʻi thermal hoʻonui coefficient, maikaʻi uila conductivity, weldability a me ka maikaʻi processability, Ua hoʻohana nui 'ia i ka aerospace, mokulele, pūʻali koa, aila drilling, uila mea kani, laau lapaau a me na mea e ae. nā ʻoihana, e like me ka hana ʻana i nā mea kaua, ka wela wela, ka hāmare kaulike o ka rudder a me nā mea pili e like me ka pahi hoʻololi, circuit breaker, spot welding electrode, etc.
kahua uila
Loaʻa i ka tungsten ka plasticity ikaika, ka wikiwiki evaporation liʻiliʻi, ka helu hoʻoheheʻe kiʻekiʻe a me ka hiki ke hoʻokuʻu electron ikaika, no laila ua hoʻohana nui ʻia ka tungsten a me kāna mau alloys i ka ʻoihana uila a me ka mana lako.No ka laʻana, ʻo ka uea tungsten he kiʻekiʻe luminous a me ka lōʻihi o ka lawelawe ʻana, no laila ua hoʻohana nui ʻia i ka hana ʻana i nā filament puʻupuʻu like ʻole, e like me ke kukui incandescent, iodine tungsten kukui, hiki ke hoʻohana ʻia ka uea tungsten i ka hana ʻana i ka cathode wela pololei a ʻīpuka o ka paipu oscillator uila a me nā ʻano mea uila like ʻole ma ka ʻaoʻao thermal cathode heater.ʻO ka2.Main Hiʻonas o ka tungsten i kūpono no ka TIG welding a me nā mea electrode ʻē aʻe no ka hana like.
ʻOihana kemika
Hoʻohana pinepine ʻia nā pūhui Tungsten e like me nā catalysts a me nā kala inorganic, e like me ka tungsten disulfide i hoʻohana ʻia ma ke ʻano he lubricant a me ka catalyst i ka ʻaila synthetic, hoʻohana ʻia ke keleawe tungsten oxide i nā kiʻi pena, hoʻohana pinepine ʻia ka calcium a i ʻole ka magnesium tungsten i nā phosphors.
Nā wahi ʻē aʻe
No ka mea ua like ka tungsten me ke aniani boryl silicate, hoʻohana ʻia ia e hana i ke aniani a i ʻole nā sila metala.He haʻahaʻa ka naʻau o Tungsten a hoʻohana ʻia e hana i nā mea gula tungsten maʻemaʻe kiʻekiʻe.Eia kekahi, hoʻohana ʻia ka tungsten i ka lāʻau radioactive, a e hoʻohana pū kekahi mau mea kani i ka uea tungsten.
