Tsananguro yeChigadzirwa: graphite
Upfu hwegrafiti hwakapfava, grey dema, hune mafuta uye hunogona kusvibisa bepa. Kuoma kwahwo kuri 1-2, uye hunowedzera kusvika 3-5 nekuwedzera kwetsvina munzira yakatwasuka. Huremu hwacho hwakasiyana ndi1.9-2.3. Kana oxygen isolation yayo iri pamusoro pe3000 ℃, inova imwe yeminerals dzinodzivirira kupisa zvakanyanya. Pakupisa kwemumba, hunhu hwemakemikari hwegrafiti upfu hwakagadzikana, hahunyungudike mumvura, hunoderedza acid, hunoderedza alkali uye organic solvents; chinhu ichi chine simba rekudzivirira kupisa uye conductivity, uye chinogona kushandiswa sechinhu chinodzivisa kupisa, chinofambisa mvura, chinodzivirira kupera simba uye chinozora mafuta.
Nekuda kwechimiro chayo chakakosha, graphite ine hunhu hunotevera: 1. Kudzivirira kupisa kwakanyanya: nzvimbo yekunyunguduka kwegraphite i3850 ± 50 ℃, uye nzvimbo yekufashaira i4250 ℃. Kureva kuti, mwero wekurasikirwa nehuremu uye coefficient yekuwedzera kwekupisa kudiki kwazvo kana uchishandisa ultra-high temperature arc sintering, uye simba regraphite rinowedzera nekuwedzera kwekupisa. Pa2000 ℃, simba regraphite rinopetwa kaviri. 2. Kunyorova: kunyorova kwegraphite kunoenderana nehukuru hwegraphite. Kana chikero chikuru chiripo, kunyorova kwefriction kudiki, uye kushanda kwemafuta kunowedzera zviri nani. 3. Kugadzikana kwemakemikari: graphite ine kugadzikana kwakanaka kwemakemikari patembiricha yemumba, inodzivirira acid, alkali uye organic solvent corrosion. 4. Plasticity: graphite ine kusimba kwakanaka uye inogona kudzvanywa kuita machira matete. 5. Kudzivirira kupisa: kana graphite ikashandiswa patembiricha yemumba, inogona kumira shanduko huru yetembiricha pasina kukuvara. Kana tembiricha ikangoerekana yakwira, huwandu hwegirafiti hahuzoshanduki zvakanyanya uye hapazovi nekutsemuka.
Mashandisirwo:
1. Sezvinhu zvinoramba kushanda: girafiti nezvigadzirwa zvayo zvine hunhu hwekudzivirira kupisa kwakanyanya uye simba rakawanda. Zvinonyanya kushandiswa pakugadzirachipfuro chegrafitimuindasitiri yesimbi, uye dzinowanzo shandiswa senzira yekudzivirira simbi inongot uye simbi inopinza furnace.
2. Sezvinhu zvinozora zvisingapfeki: graphite inowanzoshandiswa semafuta muindasitiri yemichina. Mafuta ekuzora haawanzo kukodzera kumhanya kwakanyanya, kupisa kwakanyanya uye kumanikidzwa kwakanyanya.
3. Graphite ine kugadzikana kwakanaka kwemakemikari. Inoshandiswa zvakanyanya muindasitiri yemafuta, hydrometallurgy, kugadzira acid-base, synthetic fiber, kugadzira mapepa nedzimwe nzvimbo dzemaindasitiri, izvo zvinogona kuchengetedza zvinhu zvakawanda zvesimbi.
4. Graphite inogona kushandiswa sepenzura lead, pigment uye polishing agent. Mushure mekugadzirisa kwakakosha, graphite inogona kugadzirwa kuita zvinhu zvakasiyana-siyana zvakakosha kuti zvishandiswe nemadhipatimendi akakodzera emaindasitiri.
Nguva yekutumira: Kurume-26-2021