Kugadzira nzira ye graphite kudziyisa tsvimbo muvacuum furnace

Kugadzira nzira ye graphite kudziyisa tsvimbo muvacuum furnace

Vacuum chotographite tsvimboinonziwo vacuum furnace graphite heat rod. Mumazuva ekutanga, vanhu vakashandura graphite kuita kabhoni, saka inodanwakabhoni tsvimbo. Iyo mbishi ye graphite kabhoni tsvimbo igraphite, iyo inonzi inonamira molding. Inogona kugadzirwa kuita zvigadzirwa zvegraphite zvemhando dzakasiyana, kusanganisira graphite round rod. Nekuda kwehunhu hwegraphite, ine yakasarudzika yakanaka hunhu sengeconductivity, lubrication, kukwirira kwekushisa kwepamusorozvichingoenda zvakadaro. Naizvozvo, iyo graphite kabhoni tsvimbo inewoyakanaka conductivity, kupisa conduction, lubrication,kukwirira kwekushisa kwepamusoronezvimwe zvinhu. Mamiriro emangwana ndeokuti zvinhu zvegraphite hazvina kuchinjwa. Nokudaro, kugadzirwa uye kugovera girafu matanda akasiyana, uye maitiro ekushanda emagirafu anogadzirwa achave akasiyana. Saka sei kusiyanisa? Zvigadzirwa zvegraphite zvinogadzirwa zvakanangana negraphite poda uye yekunamira, kana kutanga kugadzirwa muhombe masikweya zvinhu, izvo zvinogadziriswa nemuchina zvinoenderana nekudhirowa kana chimiro chechigadzirwa.
Pane misiyano mikuru uye hunhu pakati pegirafu raundi rodhi rakagadzirwa nenzira yekutanga uye girafu raundi rodhi rakagadzirwa neyechipiri nzira. Nekuda kwekusakwana kudzvanywa panguva yeextrusion, iyoyakawedzera graphite tsvimboine graphite poda uye inonamira ichave yakapfava kwazvo, ine hurombo density uye hombe mhepo yakasungwa (mapores makuru). Guruva rinodonha muchimiro chechisikigo, uye rinopararira kana rakanyorova nedoro. Panguva imwecheteyo, nekuda kwehuwandu hwakawanda hwekunamatira, conductivity, kupisa kupisa uye lubrication ye graphite tsvimbo ichaderedzwa zvikuru, Chikonzero chiri nyore kwazvo. Graphite chinhu chinoitisa uye chinonamira chinhuinsulating zvinhu, iyo inosungirwa kuderedza zvakanyanya conductivity ye graphite rod. Zita rakajairwa reiyi graphite kabhoni tsvimbo icarbon arc air gouging carbon rod. Inoshandiswa kucheka mune foundry. Nzvimbo yacho inoda kuputirwa nemhangura kudzivirira hunyoro uye kuitisa magetsi. Naizvozvo, rudzi urwu rwekabhoni tsvimbo inewo chinhu chekuti dhayamita ichave isingasviki 0.1-0.2mm yamaka, nekuti iyo nzvimbo inongosvika padhayamita yakatarwa kana yakaputirwa nesimbi 10%.
Kunyange zvazvo nzira yechipiri yakagadzirwawo negraphite powder uye inonamatira, pane kusimbiswa kukuru pakuita kwayo. Chekutanga, graphite poda uye anonamira zvinoshandiswa kugadzira hombegraphite zvinhupasi pekumanikidzwa kwakanyanya, uye ipapokupiwa pamuvirinekupisa kwepamusoro-kupisa (evaporation uye volatilization yeadhesive). Nenzira iyi, pane inenge isina kunamatira mugraphite mushure mekudzokororwa impregnation kugocha. Iyi impregnation yekugocha maitiro ndiyo yakakosha. Iyo yakaderedzwa graphite mushure mekuita impregnation kugocha ine maitiro egraphite pachayo uye ine mabasa ese uye maitiro egraphite. Nokuti graphite yakadaro ine kuchena kwepamusoro, inonziwohigh-purity graphite, uye girafu yakagadzirwa inonziwo high-purity graphite rod.