KeleaweʻO ia kekahi o nā metala mua loa i ʻike ʻia a hoʻohana ʻia e nā kānaka, poni-ʻulaʻula, ke kaumaha kikoʻī 8.89, kiko heheʻe 1083.4 ℃. Hoʻohana nui ʻia ke keleawe a me kāna mau mea hoʻohuihui ma muli o ko lākou conductivity uila maikaʻi a me ka conductivity thermal, kūpaʻa ikaika i ka corrosion, maʻalahi ka hana ʻana, ikaika tensile maikaʻi a me ka ikaika luhi, ʻo ka lua wale nō i ke kila a me ka alumini i ka hoʻohana ʻana i nā mea metala, a ua lilo i mau mea kumu pono ʻole a me nā mea hoʻolālā i ka hoʻokele waiwai aupuni a me ka nohona o ka poʻe, nā papahana pale aupuni a me nā kahua ʻenehana kiʻekiʻe. Hoʻohana nui ʻia ia i ka ʻoihana uila, ka ʻoihana mīkini, ka ʻoihana kemika, ka ʻoihana pale aupuni a me nā keʻena ʻē aʻe. ʻO ka pauka maikaʻi keleawe kahi concentrate i hana ʻia me ka ore maka keleawe haʻahaʻa i hiki i kahi helu kūlana maikaʻi ma o ke kaʻina hana beneficiation a hiki ke hāʻawi pololei ʻia i nā mea hoʻoheheʻe no ka hoʻoheheʻe keleawe.
He metala kaumaha ke keleawe, ʻo kona kiko heheʻe he 1083 degere Celsius, ʻo kona kiko paila he 2310 degere, he poni-ʻulaʻula ke keleawe maʻemaʻe. He maikaʻi ka hoʻokele uila a me ka wela o ke metala keleawe, a ʻo kona hoʻokele uila ka lua o nā metala āpau, ʻo ka lua wale nō i ke kālā. ʻO kona hoʻokele wela ka lua o ke kālā a me ke gula. He maʻalahi loa ke keleawe maʻemaʻe, ʻo ka nui o kahi kulu wai, hiki ke huki ʻia i loko o kahi filament 2,000 mika ka lōʻihi, a i ʻole e ʻōwili ʻia i loko o kahi pepa kini aniani ʻoi aku ka laulā ma mua o ka ʻili o ka moena.
ʻO ke ʻano o ka "uhi keleawe phosphor keʻokeʻo" ʻo ia hoʻi "keleawe phosphor me ka uhi keʻokeʻo ma luna o ka ʻili". Pono e hoʻomaopopo ʻokoʻa ʻia ka "uhi keʻokeʻo" a me ke "keleawe phosphor".
Papa keʻokeʻo -- He keʻokeʻo ke kala o ke ʻano o ka uhi. He ʻokoʻa ka mea uhi a i ʻole he ʻokoʻa ka ʻili passivation, he ʻokoʻa nō hoʻi ke kala o ke ʻano o ka uhi. He keʻokeʻo ka phosphor copper tinning no nā mīkini uila me ka ʻole o ka passivation.
Keleawe phosphorus - keleawe i loaʻa ka phosphorus. He maʻalahi ke kūʻai ʻia ke keleawe phosphorus a he elasticity maikaʻi kona, a hoʻohana nui ʻia i nā mīkini uila.
Keleawe ʻulaʻulahe keleawe. Loaʻa kona inoa mai kona kala poni. E ʻike i ke keleawe no nā waiwai like ʻole.
He keleawe maʻemaʻe ʻoihana ke keleawe ʻulaʻula, ʻo kona kiko heheʻe he 1083 °C, ʻaʻohe hoʻololi isomerism, a ʻo kona density pili he 8.9, ʻelima manawa o ka magnesium. Ma kahi o 15% ke kaumaha ma mua o ke kila maʻamau. Ua ʻulaʻula a poni ma hope o ka hoʻokumu ʻia ʻana o ka ʻili oxide ma luna o ka ʻili, no laila ua kapa ʻia ʻo ia he keleawe. He keleawe ia e loaʻa ana kahi nui o ka oxygen, no laila ua kapa ʻia hoʻi he keleawe e loaʻa ana ka oxygen.
Ua kapa ʻia ke keleawe ʻulaʻula no kona kala ʻulaʻula poni. ʻAʻole pono ia he keleawe maʻemaʻe, a i kekahi manawa ua hoʻohui ʻia kahi liʻiliʻi o nā mea deoxidation a i ʻole nā mea ʻē aʻe e hoʻomaikaʻi i ka mea a me ka hana, no laila ua hoʻokaʻawale ʻia hoʻi he metala keleawe. Hiki ke hoʻokaʻawale ʻia nā mea hana keleawe Kina i ʻehā mau ʻāpana e like me ke ʻano: keleawe maʻamau (T1, T2, T3, T4), keleawe ʻole oxygen (TU1, TU2 a me ke keleawe maʻemaʻe kiʻekiʻe, vacuum oxygen-free), keleawe deoxidized (TUP, TUMn), a me ke keleawe kūikawā (keleawe arsenic, keleawe tellurium, keleawe kālā) me kahi liʻiliʻi o nā mea hoʻohuihui. ʻO ka conductivity uila a me ka thermal o ke keleawe ka lua o ke kālā, a hoʻohana nui ʻia ia i ka hana ʻana i nā lako conductive a me ka thermal. ʻO ke keleawe i ka lewa, ka wai kai a me kekahi mau waikawa non-oxidizing (hydrochloric acid, dilute sulfuric acid), alkali, solution salt a me nā ʻano waikawa organik (acetic acid, citric acid), he kūpaʻa maikaʻi i ka corrosion, hoʻohana ʻia i ka ʻoihana kemika. Eia kekahi, he maikaʻi ka weldability o ke keleawe a hiki ke hana ʻia i nā huahana semi-finished like ʻole a me nā huahana i hoʻopau ʻia ma o ka hana anu a me ka thermoplastic. I nā makahiki 1970, ua ʻoi aku ka hana ʻana o ke keleawe ʻulaʻula ma mua o ka hana holoʻokoʻa o nā mea hoʻohui keleawe ʻē aʻe.
Ka manawa hoʻouna: Sep-05-2023
