Tungsten ali ndi mbiri yakale komanso yodziwika bwino kuyambira ku Middle Ages, pomwe ochita migodi ku Germany amafotokoza kuti apeza mchere wokhumudwitsa womwe nthawi zambiri umabwera ndi malata ndikuchepetsa zokolola za malata panthawi yosungunula. Ogwira ntchito mumgodiwo adatcha mineral wolfram chifukwa cha chizolowezi chake "chakudya" malata "ngati nkhandwe."
Tungsten adadziwika koyamba ngati chinthu mu 1781, ndi katswiri wamankhwala waku Sweden Carl Wilhelm Scheele, yemwe adapeza kuti asidi watsopano, yemwe adawatcha kuti tungstic acid, amatha kupangidwa kuchokera ku mchere womwe tsopano umadziwika kuti scheelite. Scheele ndi Torbern Bergman, pulofesa wa ku Uppsala, Sweden, anayambitsa lingaliro la kugwiritsa ntchito kuchepetsa makala a asidiwo kuti apeze chitsulo.
Tungsten, monga tikudziwira lero, adasiyanitsidwa ngati chitsulo mu 1783 ndi akatswiri awiri azamankhwala aku Spain, abale Juan Jose ndi Fausto Elhuyar, mu zitsanzo za mchere wotchedwa wolframite, womwe unali wofanana ndi tungstic acid ndipo umatipatsa chizindikiro cha tungsten (W) . M'zaka makumi oyambirira atatulukira, asayansi adafufuza njira zosiyanasiyana zogwiritsira ntchito chinthucho ndi mankhwala ake, koma kukwera mtengo kwa tungsten kunapangitsa kuti ikhale yosatheka kugwiritsidwa ntchito m'mafakitale.
Mu 1847, injiniya wina dzina lake Robert Oxland anapatsidwa chilolezo chokonzekera, kupanga, ndi kuchepetsa tungsten kukhala mawonekedwe ake achitsulo, zomwe zimapangitsa kuti ntchito zamafakitale zikhale zotsika mtengo ndipo motero, zotheka. Zitsulo zomwe zili ndi tungsten zinayamba kukhala zovomerezeka mu 1858, zomwe zinayambitsa zitsulo zoyamba zodzilimbitsa mu 1868. Mitundu yatsopano yazitsulo yokhala ndi 20% tungsten inasonyezedwa pa Chiwonetsero Chadziko Lonse cha 1900 ku Paris, France, ndipo chinathandizira kukulitsa zitsulo. ntchito ndi zomangamanga; zitsulo zazitsulozi zimagwiritsidwabe ntchito kwambiri m'masitolo ogulitsa makina ndi zomangamanga lero.
Mu 1904, mababu oyamba a tungsten filament anali ovomerezeka, omwe adatenga malo a nyali za carbon filament zomwe sizinali zogwira ntchito komanso zimayaka mofulumira. Mafilanti omwe amagwiritsidwa ntchito mu mababu a incandescent amapangidwa kuchokera ku tungsten kuyambira nthawi imeneyo, zomwe zimapangitsa kuti zikhale zofunikira pakukula ndi kufalikira kwa kuunikira kwamakono kwamakono.
M'makampani opangira zida, kufunikira kojambula kumafa ndi kulimba ngati diamondi komanso kulimba kopitilira muyeso kunayendetsa chitukuko cha ma tungsten carbides opangidwa ndi simenti m'ma 1920s. Ndi kukula kwachuma ndi mafakitale pambuyo pa Nkhondo Yachiwiri Yapadziko Lonse, msika wama carbides opangidwa ndi simenti omwe amagwiritsidwa ntchito pazida ndi zitini「zigawo zogulitsira zidakulanso. Masiku ano, tungsten ndi yomwe imagwiritsidwa ntchito kwambiri pazitsulo zokanira, ndipo imatengedwabe makamaka ku wolframite ndi mchere wina, scheelite, pogwiritsa ntchito njira yofanana yopangidwa ndi abale a Elhuyar.
Tungsten nthawi zambiri amathiridwa ndi chitsulo kuti apange zitsulo zolimba zomwe zimakhala zokhazikika pakutentha kwambiri ndipo zimagwiritsidwa ntchito popanga zinthu monga zida zodula kwambiri komanso ma nozzles a injini ya rocket, komanso kugwiritsa ntchito voliyumu yayikulu ya ferro-tungsten ngati zombo zam'madzi, makamaka zophulitsa ayezi. Zopangira zitsulo zazitsulo za tungsten ndi tungsten alloy zikufunika kuti zigwiritsidwe ntchito momwe zimafunikira zolemera kwambiri (19.3 g/cm3), monga zolowera mphamvu za kinetic, ma counterweights, ma flywheels, ndi ma governor. .
Tungsten imapanganso mankhwala - mwachitsanzo, ndi calcium ndi magnesium, kupanga zinthu za phosphorescent zomwe zimakhala zothandiza mu nyali za fulorosenti. Tungsten carbide ndi gulu lolimba kwambiri lomwe limagwiritsa ntchito pafupifupi 65% ya mowa wa tungsten ndipo amagwiritsidwa ntchito ngati nsonga za kubowola, zida zodula kwambiri, ndi makina amigodi Tungsten carbide ndi yotchuka chifukwa cha kukana kwake; kwenikweni, zikhoza kudulidwa pogwiritsa ntchito zida za diamondi. Tungsten carbide imawonetsanso mphamvu zamagetsi ndi matenthedwe, komanso kukhazikika kwakukulu. Komabe, brittleness ndi nkhani yomwe imakhudzidwa kwambiri ndi mapangidwe ake ndipo inachititsa kuti pakhale zida zomangira zitsulo, monga zowonjezera za cobalt kupanga carbide yopangidwa ndi simenti.
Pazamalonda, tungsten ndi zopangira zake zooneka ngati ma aloyi olemera, ma tungsten amkuwa, ndi maelekitirodi - amapangidwa kudzera kukanikiza ndi kuyika pafupi ndi ukonde. Pazinthu zopangidwa ndi mawaya ndi ndodo, tungsten imakanikizidwa ndikuyimitsidwa, ndikutsatiridwa ndi kugwedezeka ndikujambula mobwerezabwereza ndi kulumikiza, kuti apange mawonekedwe owoneka bwino a tirigu omwe amapitilira muzinthu zomalizidwa kuyambira ndodo zazikulu mpaka mawaya oonda kwambiri.
Nthawi yotumiza: Jul-05-2019