Isostatic kudzvanya graphiterudzi rutsva rwezvinhu zvegraphite zvakagadziridzwa muma1960, zvine nhevedzano yezvivakwa zvakanakisa.Semuenzaniso, isostatic kudzvanya graphite ine yakanaka kupisa kupisa.Mumhepo inert, simba rayo remagetsi haringodziki nekuwedzera kwekushisa, asi rinowedzerawo, richisvika pakukosha kwayo kwepamusoro pe2500 ℃;Kana ichienzaniswa neyakajairika graphite, chimiro chayo chakanaka uye chakakora, uye kufanana kwayo kwakanaka;Iyo coefficient yekuwedzera kwemafuta yakadzika kwazvo uye ine yakanakisa kupisa kutyisa kupikisa;Isotropic;Kuramba kwakasimba kwemakemikari ekuora, yakanaka yekupisa uye magetsi conductivity;Iine yakanakisa mechanic process performance.
Izvo chaizvo nekuda kwekuita kwayo kwakanakisa kuti isostatic yekutsikirira graphite inoshandiswa zvakanyanya muminda yakadai sesimbi, chemistry, magetsi, aerospace, uye atomic simba indasitiri.Uyezve, nekuvandudzwa kwesainzi uye tekinoroji, minda yekushandisa iri kuramba ichiwedzera.
Kugadzira maitiro e isostatic kudzvanya graphite
Nzira yekugadzira isostatic pressing graphite inoratidzwa muMufananidzo 1. Zviri pachena kuti nzira yekugadzira isostatic pressing graphite yakasiyana neye graphite electrodes.
Isostatic pressing graphite inoda structually isotropic raw materials, inoda kukuyiwa kuita hupfu hwakatsetseka.Cold isostatic yekudzvanya yekugadzira tekinoroji inoda kuiswa, uye kutenderera kutenderera kwakareba.Kuti uwane huwandu hwakanangwa, kutenderera kwakawanda kwekugocha kunodiwa, uye kutenderera kwegraphitization kwakareba kupfuura kweyakajairika graphite.
Imwe nzira yekugadzira isostatic kudzvanya graphite ndeye kushandisa mesophase kabhoni microspheres seyakagadzirwa zvinhu.Chekutanga, iyo mesophase kabhoni microspheres inoiswa kune oxidation kudzikamisa kurapwa pane yakakwirira tembiricha, inoteverwa neisostatic kudzvanya, ichiteverwa nekumwe kuverenga uye graphitization.Iyi nzira haina kuunzwa muchinyorwa chino.
1.1 Raw zvinhu
The zvigadzirwa zvekugadzira isostatic kudzvanya graphite zvinosanganisira aggregates uye mabhainda.Aggregates anowanzo kugadzirwa kubva petroleum coke uye asphalt coke, pamwe nepasi asphalt coke.Semuenzaniso, iyo AXF yakatevedzana isostatic graphite inogadzirwa nePOCO muUnited States inogadzirwa kubva pasi asphalt coke Gilsontecoke.
Kuti ugadzirise kushanda kwechigadzirwa maererano nekushandiswa kwakasiyana, kabhoni dema uye yekugadzira graphite inoshandiswawo sekuwedzera.Kazhinji, petroleum coke uye asphalt coke inoda kuverengerwa pa 1200 ~ 1400 ℃ kubvisa hunyoro uye zvinhu zvinoputika zvisati zvashandiswa.
Nekudaro, kuitira kuti uvandudze zvivakwa zvemuchina uye density yezvigadzirwa, kune zvakare yakananga kugadzirwa kweisostatic kudzvanya graphite uchishandisa mbishi zvinhu senge coke.Hunhu hwekubika ndehwekuti ine zvinhu zvinoshanduka, ine self sintering zvivakwa, uye inowedzera uye inobvumira zvibvumirano zvakafanana nebinder coke.Iyo binder inowanzo shandisa marasha tar pitch, uye zvinoenderana neyakasiyana midziyo mamiriro uye maitiro ezvinodiwa zvebhizinesi rega rega, nzvimbo yekupfavisa yemarasha tar pitch inoshandiswa kubva pa50 ℃ kusvika 250 ℃.
Kuita kweisostatic kudzvanya graphite kunokanganiswa zvakanyanya neiyo mbishi, uye kusarudzwa kwezvakagadzirwa chinhu chakakosha chinongedzo mukugadzira chinodiwa chekupedzisira chigadzirwa.Usati wadyisa, maitiro uye kufanana kwezvakagadzirwa zvinofanira kunyatsoongororwa.
1.2 Kukuya
Iyo yakaunganidzwa saizi ye isostatic kudzvanya graphite inowanzodikanwa kusvika pazasi 20um.Parizvino, iyo yakanyanya kucheneswa isostatic kudzvanya graphite ine yakakura particle dhayamita ye1 μ m.Itete zvikuru.
Kukuya aggregate coke kuita hupfu hwakatsetseka kudaro, inodiwa ultra-fine crusher.Kukuya neavhareji ye particle size ye 10-20 μ Upfu hwe m hunoda kushandiswa kwe vertical roller mill, ine chiyero chepakati chepakati pasi pe 10 μ Upfu hwe m hunoda kushandiswa kwemhepo inoyerera grinder.
1.3 Kusanganisa nekukanya
Isa hupfu hwevhu nemarasha tar pitch binder zvakaenzana mumuvhenganisi wekupisa wekukanya, kuitira kuti asphalt inonamirwa zvakaenzana pamusoro pehupfu hwecoke particles.Mushure mekukanya, bvisa paste uye uite kuti itonhore.
Nguva yekutumira: Sep-27-2023