Ibisobanuro birambuye kuri Isostatic Pressing Graphite (1)

Isostatike ikanda grafiteni ubwoko bushya bwibikoresho bya grafite byakozwe mu myaka ya za 1960, bifite urukurikirane rwibintu byiza cyane.Kurugero, gukanda isostatike ikanda grafite ifite imbaraga zo kurwanya ubushyuhe.Mu kirere kitagira inert, imbaraga za mashini ntizigabanuka gusa no kwiyongera kwubushyuhe, ariko kandi ziriyongera, igera ku giciro cyayo cyo hejuru kuri 2500 ℃;Ugereranije na grafite isanzwe, imiterere yayo ni nziza kandi yuzuye, kandi uburinganire bwayo ni bwiza;Coefficient yo kwagura ubushyuhe ni mike cyane kandi ifite imbaraga zo guhangana nubushyuhe bwiza;Isotropic;Imiti ikomeye yo kurwanya ruswa, amashanyarazi meza n'amashanyarazi;Ifite imikorere myiza yo gutunganya imashini.

Nubusanzwe kubera imikorere myiza yacyo isitatike ikanda grafite ikoreshwa cyane mubice nka metallurgie, chimie, amashanyarazi, icyogajuru, ninganda za atome.Byongeye kandi, hamwe niterambere ryubumenyi nikoranabuhanga, imirima ikoreshwa ihora yaguka.

Ibikorwa byo gukora isostatike ikanda grafite

Igikorwa cyo gukora isostatike yo gukanda igishushanyo cyerekanwe ku gishushanyo cya 1. Biragaragara ko uburyo bwo gukora ibishushanyo mbonera bya isostatike butandukanye nubwa electrode ya grafite.

Gukanda isitatike ikanda bisaba ibikoresho byibanze bya isotropique, bigomba kuba mubutaka bwiza.Ubukonje bwa isostatike bukanda bugomba gukoreshwa, kandi kuzenguruka ni birebire cyane.Kugirango ugere ku ntego yintego, harasabwa inshuro nyinshi zo gutwika inda, kandi igishushanyo mbonera ni kirekire cyane kuruta icya grafite.

Ubundi buryo bwo gukora isostatike ikanda grafite ni ugukoresha mesofase karubone microsperes nkibikoresho fatizo.Ubwa mbere, microsperes ya karubone ya mesofase ikorerwa imiti igabanya ubukana bwa okiside ku bushyuhe bwo hejuru, igakurikirwa no gukanda isostatike, hagakurikiraho kubara no gushushanya.Ubu buryo ntabwo bwatangijwe muriyi ngingo.

1.1 Ibikoresho bibisi

The ibikoresho fatizo byo gukora isostatike ikanda grafite harimo igiteranyo hamwe na binders.Ubusanzwe igiteranyo gikozwe muri peteroli ya kokiya na kokiya ya asfalt, hamwe na kokiya ya asfalt.Kurugero, urukurikirane rwa AXF isostatic grafite yakozwe na POCO muri Reta zunzubumwe zamerika ikozwe muri asfalt yubutaka Gilsontecoke.

Kugirango uhindure imikorere yibicuruzwa ukurikije imikoreshereze itandukanye, karubone yumukara na artificiel nayo ikoreshwa nkinyongera.Muri rusange, kokiya ya peteroli na kokiya ya asifalt igomba kubarwa kuri 1200 ~ 1400 ℃ kugirango ikureho ubuhehere nibintu bihindagurika mbere yo kubikoresha.

Nyamara, kugirango tunonosore imiterere yubukanishi nubucucike bwibicuruzwa, hariho kandi umusaruro utaziguye wa isostatike ikanda grafite ukoresheje ibikoresho bibisi nka kokiya.Ikiranga kokiya ni uko irimo ibintu bihindagurika, ifite imiterere yo gucumura, kandi yaguka kandi igasezerana hamwe na boke coke.Ububiko busanzwe bukoresha ikibanza cyamakara, kandi ukurikije ibikoresho bitandukanye hamwe nibisabwa muri buri ruganda, aho koroshya ikibanza cyamakara yakoreshejwe kuva kuri 50 ℃ kugeza 250 ℃.

Imikorere ya isostatike ikanda grafite yibasiwe cyane nibikoresho fatizo, kandi guhitamo ibikoresho fatizo ni ihuriro ryingenzi mugutanga ibicuruzwa byanyuma bisabwa.Mbere yo kugaburira, ibiranga nuburinganire bwibikoresho fatizo bigomba kugenzurwa cyane.

1.2 Gusya

Ingano yubunini bwa isostatike ikanda grafite mubisanzwe isabwa kugera munsi ya 20um.Kugeza ubu, isitatike ikanda cyane ya grafite ifite igipimo ntarengwa cya diameter ya 1 μ m.Nibyoroshye.

Kugira ngo usya kokiya yose muri poro nziza, hakenewe igikonjo cyiza cyane.Gusya hamwe nuburinganire buringaniye bwa 10-20 μ Ifu ya m isaba gukoresha urusyo ruhagaritse, hamwe nimpuzandengo yikigereranyo kiri munsi ya 10 μ Ifu ya m isaba gukoresha urusyo rwumuyaga.

1.3 Kuvanga no gukata

Shira ifu yubutaka hamwe nigitereko cyamakara ugereranije mukuvanga ubushyuhe kugirango ubikate, kugirango igice cya asfalt gifatanye neza hejuru yubutaka bwa kokiya.Nyuma yo gukata, kura paste hanyuma ureke bikonje.