Carbon fiberyakapfurwa nekupisa kwakanyanya sechinhu chakasimbiswa muma1950s uye yaishandiswa kugadzira zvishongedzo zvemissile.Mafibhi ekutanga anogadzirwa nekudziya kusvika aita rayon.Maitiro acho haashande, uye mafibhi anozobuda ane kabhoni ine chete 20 muzana yakaderera simba uye kuomarara.Mukutanga 1960s, kusimudzira uye kushandiswa kwepolyacrylonitrile seyakagadzirwa kabhoni fiber ine 55% kabhoni uye kuita zvirinani.Iyo yakakosha nzira yekushandura nzira ye polyacrylonitrile yakakurumidza kuve nzira yekutanga yekutanga kabhoni fiber kugadzirwa.
Mumakore ekuma1970, vamwe vanhu vakaedza kuchenesa nekugadzirisa carbon fiber kubva mupetroleum.Aya mafiber ane 85% kabhoni uye ane yakanakisa flexural simba.Nehurombo, vane mashoma ekumanikidza simba uye haagamuchirwe zvakanyanya.
Carbon fiber chikamu chakakosha chezvigadzirwa zvakawanda, uye kushandiswa kwekabhoni fiber kuri kukura nekukurumidza gore negore.
Graphite fiber inoreva rudzi rwe-ultra-high modulus fiber inogadzirwa nepetroleum pitch seyakagadzirwa.Aya mafiber ane hunhu hwetatu-dimensional crystal kurongeka kwechimiro chemukati uye imhando yakachena yekabhoni inonzi graphite.
raw material
Iyo mbishi inoshandiswa kugadziracarbon fiberinonzi precursor, uye ingangoita 90% yekabhoni fiber kugadzira mbishi zvinhu ndeye polyacrylonitrile.Iyo 10% yasara inogadzirwa nerayon uye petroleum pitch.
Zvese zvinhu izvi organic mapolima, anoratidzirwa nemamorekuru akasungwa pamwechete netambo refu dzekabhoni maatomu.
Mukugadzira, magasi akasiyana-siyana uye zvinwiwa zvinoshandiswa, zvimwe zvezvinhu izvi zvakagadzirirwa kuita nemafibhi kuti zviwane mhedzisiro chaiyo, zvimwe zvinhu zvinogadzirwa, kana kusaita kudzivirira kumwe kuita nefiber.Kurongeka chaiko kwezvizhinji zvezvishandiso mumaitiro aya kunoonekwawo sechakavanzika chekutengeserana.
kugadzira nzira
Muchikamu chemakemikari uye chemagetsi checarbon fiberkugadzirwa kwekugadzira, iyo precursor tambo kana faibha inodhonzwa muchoto uye yobva yapiswa kune yakanyanya tembiricha mukushaikwa kweokisijeni.Pasina oxygen, fiber haigoni kupisa.Pane kudaro, tembiricha yepamusoro inokonzera kuti maatomu efiber azungunuke zvine simba kusvika pakupedzisira maatomu asiri ecarbon abviswa.Iyi nzira, inodaidzwa kuti carbonization, ine masumbu marefu emafiber akavharirwa zvakasimba, achisiya mashoma maatomu asiri ecarbon.Uku ndiko kutevedzana kwemaitiro ekugadzira kabhoni fibers uchishandisa polyacrylonitrile.
1. Carbon fiber jira chinhu chinoitisa, uye chinofanira kuchengetedzwa kure nemidziyo yemagetsi nemasimba masimba uye matanho ekudzivirira akavimbika anofanira kutorwa panguva yekuiswa uye kuvaka.
2. Iko kukotama kwemucheka wekabhoni kunofanira kudziviswa panguva yekuchengetedza, kutakura uye kuvaka.
3. Iyo inotsigira resin yekabhoni fiber jira inofanira kuvharwa uye kuchengetwa kure nenzvimbo dzemoto, zuva rakananga uye nzvimbo dzine tembiricha yakakwira.
4. Nzvimbo iyo resin inogadzirirwa uye inoshandiswa inofanira kuchengetedzwa zvakanaka.
5. Vashandi vanoshanda panzvimbo vanofanira kutora matanho ekudzivirira anoenderana.
Nguva yekutumira: Nov-21-2022