Oxygen (O2)

Zosintha zaukadaulo

Oxygenndi mpweya wopanda mtundu komanso wopanda fungo. Ndilo gawo lodziwika bwino la oxygen. Pankhani yaukadaulo, mpweya umachotsedwa munjira yotulutsa mpweya, ndipo mpweya mumlengalenga umakhala pafupifupi 21%. Oxygen ndi mpweya wopanda mtundu komanso wopanda fungo wokhala ndi chilinganizo chamankhwala O2, womwe ndi mtundu wodziwika bwino wa okosijeni. Malo osungunuka ndi -218.4 ° C, ndipo malo owira ndi -183 ° C. Simasungunuka mosavuta m'madzi. Pafupifupi 30mL ya okosijeni imasungunuka mu 1L yamadzi, ndipo mpweya wamadzimadzi umakhala wabuluu kumwamba. The mankhwala zimatha mpweya ndi yogwira. Kupatulapo mipweya yosowa ndi zinthu zachitsulo zomwe zimakhala zochepa monga golide, platinamu, ndi siliva, zinthu zambiri zimatha kuchita ndi mpweya. Izi zimatchedwa ma oxidation reaction. Zochita za redox zimatanthawuza machitidwe omwe ma elekitironi amasamutsidwa kapena kusamutsidwa. Oxygen ili ndi mphamvu zothandizira kuyaka komanso okosijeni. Mpweya wamankhwala umagwira ntchito yofunika kwambiri pa chithandizo chamankhwala ndi chisamaliro chachipatala, monga kutsitsimula, opaleshoni, ndi chithandizo chamankhwala osiyanasiyana. Oxygen itha kugwiritsidwanso ntchito ngati mpweya wopumira podumphira pambuyo posakanizidwa ndi nayitrogeni kapena helium. Mpweya wa okosijeni wamalonda ukhoza kupezedwa mwa kukhetsa ndi kusungunula mpweya m'malo olekanitsa mpweya. . Ntchito yaikulu ya mafakitale ya oxygen ndiyo kuyaka. Zida zambiri zomwe nthawi zambiri sizimayaka mumpweya zimatha kuyaka mu mpweya, kotero kusakaniza mpweya ndi mpweya kumathandizira kwambiri kuyaka bwino m'mafakitale achitsulo, zitsulo zopanda chitsulo, magalasi ndi konkriti. Akasakanizidwa ndi gasi wamafuta, amagwiritsidwa ntchito kwambiri podula, kuwotcherera, kuwotcherera ndi kuwomba magalasi kuti apereke kutentha kwakukulu kuposa kuyaka kwa mpweya, potero kumapangitsa kuti ntchito zitheke. Kusamala posungira: Sungani m'nyumba yosungiramo zinthu zoziziritsa kukhosi komanso mpweya wabwino. Khalani kutali ndi gwero la moto ndi kutentha. Kutentha kosungirako sikuyenera kupitirira 30°C. Iyenera kusungidwa mosiyana ndi zinthu zoyaka moto, yogwira zitsulo ufa, etc., ndi kupewa kusungirako osakaniza. Malo osungiramo zinthu ayenera kukhala ndi zida zothandizira zadzidzidzi zomwe zatuluka.

Ntchito:

① Kugwiritsa Ntchito Mafakitale:

Kupanga zitsulo, kusungunula zitsulo zopanda ferrous.Kudula zitsulo.

②Kagwiritsidwe Pachipatala:

Popereka chithandizo choyamba chadzidzidzi monga kukomoka ndi matenda a mtima, pochiza odwala omwe ali ndi vuto la kupuma komanso opaleshoni.

③Kupanga Semiconductor:

Chemical vapor deposition of silicon dioxide, thermal oxide kukula, plasma etching, plasma stripping of photoresist and carrier gas in some deposition/diffusion operations.

Phukusi labwinobwino:

Ubwino:

①Kupitilira zaka khumi pamsika;

② ISO wopanga satifiketi;

③Kutumiza mwachangu;

④Stable zopangira gwero;

⑤Dongosolo lowunikira pa intaneti pakuwongolera kwamtundu uliwonse;

⑥Kufunika kwakukulu komanso kusamala pogwira silinda musanadzaze;