Upfu hwegrafiti hune hunhu hwakanaka kwazvo, saka hunoshandiswa zvakanyanya mukugadzira simbi, michina, magetsi, makemikari, machira, kudzivirira nyika nedzimwe nzvimbo dzemaindasitiri. Minda yekushandisa yeupfu hwegirafiti yechisikigo nehupfu hwegirafiti yekugadzira ine zvikamu zvakasiyana uye misiyano. Mupepeti wegirafiti weFuruite anotevera anotanga minda yekushandisa yeupfu hwegirafiti nehupfu hwegirafiti yekugadzira.
1. Indasitiri yesimbi
Muindasitiri yesimbi, upfu hwegirafiti yechisikigo hunogona kushandiswa kugadzira zvinhu zvinoramba kushanda zvakaita semagnesia-carbon zvidhinha uye zvidhinha zvearuminiyamu-carbon nekuda kwekusagadzikana kwayo mukugadzirwa kwesimbi. Upfu hwegirafiti yechisikigo hunogona kushandiswa seelectrode yekugadzira simbi, asi maerekitironi akagadzirwa nehupfu hwegirafiti yechisikigo akaoma kushandisa muzvitofu zvemagetsi zvinogadzira simbi zvine mamiriro ekushanda akaomarara.
2. Indasitiri yemichina
Muindasitiri yemichina, zvinhu zvegrafiti zvinowanzo shandiswa sezvinhu zvisingapfeki uye zvinozora mafuta. Chinhu chekutanga chekugadzira graphite inogona kuwedzerwa igrafiti ine kabhoni yakawanda, uye zvimwe zvinhu zvemakemikari zvakaita sesulfuric acid yakasanganiswa (inopfuura 98%), hydrogen peroxide (inopfuura 28%), potassium permanganate, nezvimwewo zvese zvinhu zveindasitiri. Matanho akajairika ekugadzirira ndeaya: patembiricha yakakodzera, huwandu hwakasiyana hwehydrogen peroxide solution, natural flake graphite uye concentrated sulfuric acid zvinowedzerwa munzira dzakasiyana, zvinogadziriswa kwenguva yakati pasi pekukurunga nguva dzose, zvozogezwa nemvura kusvika zvanyatsobuda, uye zvoiswa mukati memhepo. Mushure mekushaya mvura, yakaomeswa ne vacuum pa60 °C. Natural graphite powder ine mafuta akanaka uye inowanzoshandiswa sekuwedzera mafuta ekuzora. Midziyo yekutakura corrosive medium inoshandisa zvakanyanya mapiston rings, sealing rings uye bearingers akagadzirwa ne artificial graphite powder, uye haidi kuwedzera mafuta ekuzora panguva yekushanda. Upfu hwegirafiti yechisikigo uye zvinhu zvakasanganiswa zvepolymer resin zvinogona kushandiswawo muminda iri pamusoro apa, asi kuramba kupfeka hakuna kunaka seupfu hwegirafiti hwekugadzira.
3. Indasitiri yemakemikari
Upfu hwegrafiti hwekugadzira hune hunhu hwekudzivirira ngura, kufambisa zvakanaka kupisa uye kupinza kwakaderera. Hunoshandiswa zvakanyanya muindasitiri yemakemikari kugadzira zvinochinja-chinja kupisa, matangi ekuita reaction, nhare dzekunyudza, mafirita nezvimwe zvishandiso. Upfu hwegirafiti hwechisikigo uye polymer resin composite zvinhu zvinogonawo kushandiswa muminda yataurwa pamusoro apa, asi kufambisa kupisa uye kudzivirira ngura hazvina kunaka sehupfu hwegirafiti hwekugadzira.
Nekufambira mberi kwekuvandudzwa kwetekinoroji yekutsvagisa, mukana wekushandiswa kweupfu hwegrafiti hwekugadzira haugone kuyerwa. Parizvino, kugadzirwa kwezvigadzirwa zvegrafiti zvekugadzira zvine graphite yechisikigo sezvinhu zvakachekwa ndeimwe yenzira dzakakosha dzekuwedzera munda wekushandisa wegrafiti yechisikigo. Upfu hwegrafiti yechisikigo sezvinhu zvakachekwa zvekubatsira zvakashandiswa mukugadzira upfu hwegrafiti hwekugadzira, asi kugadzirwa kwezvigadzirwa zvegrafiti zvekugadzira zvine upfu hwegrafiti yechisikigo sezvinhu zvikuru hazvina kukwana. Ndiyo nzira yakanakisa yekuzadzisa chinangwa ichi nekunzwisisa zvizere uye kushandisa chimiro nehunhu hweupfu hwegrafiti yechisikigo, uye kushandisa maitiro akakodzera, nzira uye nzira dzekugadzira zvigadzirwa zvegrafiti zvekugadzira zvine chimiro chakakosha, hunhu uye mashandisirwo akakosha.
Nguva yekutumira: Chikunguru-20-2022