Nhoroondo pfupi ye tungsten

Tungsten ine nhoroondo yakarebesa kubva kuMiddle Ages, apo vanochera marata kuGermany vaishuma kutsvaga chicherwa chinogumbura chaiwanzouya pamwe chete nesimbi uye kuderedza goho remarata panguva yekunyungudutswa. Vacheri vakapa zita remadunhurirwa remineral wolfram nekuda kwemaitiro ayo e "kudya" tini "semhumhi."
Tungsten yakatanga kuzivikanwa sechinhu muna 1781, nemugadziri wemakemikari weSweden Carl Wilhelm Scheele, akawana kuti asidi itsva, yaakadana kuti tungstic acid, yaigona kugadzirwa kubva muminerari yava kunzi scheelite. Scheele naTorbern Bergman, purofesa wokuUppsala, Sweden, vakatanga pfungwa yokushandisa kuderedza marasha easidhi iyoyo kuti vawane simbi.

Tungsten sezvatinoiziva nhasi yakazoparadzaniswa sesimbi muna 1783 nevaviri vekemisitiri vekuSpain, mukoma Juan Jose naFausto Elhuyar, mumasampuli emaminerari anonzi wolframite, aive akafanana netungstic acid uye anotipa tungsten chiratidzo chemakemikari (W) . Mumakumi ekutanga emakumi emakore mushure mekuwanikwa masayendisiti akaongorora zvakasiyana-siyana zvinogoneka mashandisirwo echinhu uye makomisheni ayo, asi mutengo wakakwirisa we tungsten wakaita kuti zvisashande mukushandiswa kwemaindasitiri.
Muna 1847, injiniya anonzi Robert Oxland akapiwa mvumo yekugadzirira, kuumba, uye kuderedza tungsten kune chimiro chayo chesimbi, zvichiita kuti kushandiswa kwemaindasitiri kuve nemutengo unodhura uye naizvozvo, zvinokwanisika. Simbi dzine tungsten dzakatanga kupihwa patent muna 1858, zvichiita kuti pave nesimbi dzekutanga dzekuzviomesa muna 1868. Zvimiro zvitsva zvesimbi zvine tungsten inosvika 20% zvakaratidzwa paWorld Exhibition muna 1900 muParis, France, uye zvakabatsira kuwedzera simbi. maindasitiri ebasa nekuvaka; aya masimbi alloys achiri kushandiswa zvakanyanya muzvitoro zvemichina uye kuvaka nhasi.

Muna 1904, magirobhu ekutanga etungsten filament aive patented, achitora nzvimbo yemarambi ecarbon filament aive asina kunyatso shanda uye akatsva nekukurumidza. Mafilamende anoshandiswa mumagirobhu emwenje akagadzirwa kubva ku tungsten kubvira ipapo, zvichiita kuti ive yakakosha pakukura nekuwanda kwemwenje wemazuva ano wekugadzira.
Muindasitiri yezvishandiso, kudiwa kwekudhirowa kunofa nekuomarara kwakafanana nedhaimani uye kusimba kwakanyanya kwakafambisa kuvandudzwa kwecemented tungsten carbides muma1920s. Nekukura kwehupfumi uye maindasitiri mushure meHondo Yenyika II, musika wemasimende carbides anoshandiswa kumidziyo yemidziyo uye canst「iction zvikamu zvakakurawo. Nhasi, tungsten ndiyo inonyanya kushandiswa kwesimbi dzinoramba, uye ichiri kutorwa zvakanyanya kubva muwolframite uye imwe mineral, scheelite, vachishandisa nzira imwecheteyo yakagadziridzwa nehama dzeElhuyar.

Tungsten inowanzo sanganiswa nesimbi kuti igadzire simbi dzakaomarara dzakagadzikana pakupisa kwakanyanya uye dzinoshandiswa kugadzira zvigadzirwa senge maturusi ekumhanya kwazvo ekucheka maturusi uye roketi injini nozzles, pamwe nehombe vhoriyamu yekushandiswa kweferro-tungsten semafambiro engarava, kunyanya mazaya echando. Metallic tungsten uye tungsten alloy chigayo zvigadzirwa zviri kudiwa maapplication ayo akakwira-density zvinhu (19.3 g/cm3) senge kinetic simba rinopinda, counterweights, flywheels, uye magavhuna Mamwe maapplication anosanganisira nhovo dzemwaranzi uye x-ray zvinangwa. .
Tungsten inoumbawo makomisheni - semuenzaniso, ine calcium uye magnesium, inogadzira phosphorescent zvimiro zvinobatsira mu fluorescent magirobhu. Tungsten carbide musanganiswa wakaoma zvakanyanyisa unobata 65% ye tungsten kushandiswa uye inoshandiswa mukushandisa senge matipi ezvibooro, maturusi ekucheka anomhanya kwazvo, uye muchina wemigodhi Tungsten carbide ine mukurumbira nekusapfeka kwayo; chokwadi, inogona kutemwa chete uchishandisa maturusi edhaimani. Tungsten carbide inoratidzawo magetsi uye kupisa conductivity, uye kugadzikana kwepamusoro. Nekudaro, iyo brittleness inyaya mune yakasimbiswa zvakanyanya masisitimu mashandisirwo uye yakatungamira mukugadzirwa kwesimbi-yakasungwa kombuta, sekuwedzera kwecobalt kugadzira simende carbide.
Mukutengesa, tungsten uye zvigadzirwa zvayo zvakaumbwa - senge zvinorema alloys, tungsten yemhangura, uye maelectrodes - anogadzirwa kuburikidza nekutsikirira uye kunyura mupedyo net shape. Kune zvigadzirwa zvakagadzirwa newaya netsvimbo, tungsten inotsikirirwa uye kunyungudutswa, ichiteverwa nekukwenya uye kudzokororwa kudhirowa uye kudhirowa, kugadzira hunhu hwakareba hwezviyo hunotakura muzvigadzirwa zvakapedzwa kubva pamatanda makuru kusvika kune waya dzakatetepa.


Nguva yekutumira: Jul-05-2019