graphite na musamman shine babban tsabta, babban yawa da ƙarfi mai girmagraphiteabu kuma yana da kyakkyawan juriya na lalata, kwanciyar hankali mai zafi da babban ƙarfin lantarki. An yi shi da na halitta ko na wucin gadi graphite bayan high zafin jiki zafi magani da kuma high matsa lamba aiki da kuma yawanci amfani a masana'antu aikace-aikace a high zafin jiki, high matsa lamba da kuma lalata yanayi.
Ana iya raba shi zuwa nau'ikan daban-daban ciki har da isostaticgraphite tubalan, extruded graphite tubalan, moldedgraphite tubalanda rawar jikigraphite tubalan.
Fasahar kere-kere:
Graphitewani nau'i ne na musamman mara ƙarfe wanda ya ƙunshi atom ɗin carbon wanda aka tsara a cikin sifa mai ɗaki mai ɗari huɗu. Abu ne mai laushi kuma mai karye wanda aka saba amfani dashi a aikace-aikacen masana'antu daban-daban saboda abubuwan da ya dace. Graphite na iya kiyaye ƙarfinsa da kwanciyar hankali ko da a yanayin zafi da ya wuce 3600 ° C. Yanzu bari in gabatar da tsarin samar da graphite na musamman.
Isostatic graphite, Ya sanya daga high tsarki graphite ta latsa, ne wani irreplaceable abu amfani da masana'antu na guda crystal tanderu, karfe ci gaba da simintin graphite crystallizers, da graphite lantarki lantarki walƙiya sallama machining. Baya ga wadannan manyan aikace-aikace, shi ne yadu amfani a cikin filayen wuya gami (vacuum makera heaters, sintering faranti, da dai sauransu), ma'adinai (kera na rawar soja molds), sinadaran masana'antu (zafi musayar, lalata-resistant sassa). karafa (crucibles), da injuna (masu aikin injiniya).
Fasahar Molding
Ka'idar fasahar latsawa ta isostatic ta dogara ne akan dokar Pascal. Yana canza matsi na unidirectional (ko bidirectional) na abu zuwa matsi mai madauri da yawa (omnidirectional). A lokacin aiwatarwa, ƙwayoyin carbon koyaushe suna cikin yanayi mara kyau, kuma yawan ƙarar yana da ɗanɗano iri ɗaya tare da abubuwan isotropic. Bayan haka, ba batun tsayin samfurin ba, don haka yin graphite isostatic ba shi da bambance-bambancen aiki ko kaɗan.
Dangane da yanayin zafin da ake samu da ƙarfafawa, ana iya raba fasahar matsi ta isostatic zuwa latsawar isostatic mai sanyi, daɗaɗɗen isostatic mai zafi, da latsawar isostatic mai zafi. Kayayyakin latsawa na isostatic suna da babban yawa, yawanci 5% zuwa 15% sama da na samfuran matsi na unidirectional ko bidirectional mold. Matsakaicin dangi na samfuran matsi na isostatic na iya kaiwa 99.8% zuwa 99.09%.
Molded graphite yana da fitattun wasanni a cikin ƙarfin injina, juriya na abrasion, yawa, tauri da ƙarfin lantarki kuma ana iya ƙara haɓaka waɗannan wasannin ta hanyar lalata guduro ko ƙarfe.
Molded graphite fasali mai kyau lantarki watsin, high zafin jiki juriya, lalata juriya, high tsarki, kai lubrication, thermal girgiza juriya da kuma sauki daidaici machining, kuma an yadu amfani a cikin filayen na ci gaba da simintin gyaran kafa, m gami da lantarki mutu sintering, lantarki walƙiya, hatimin inji, da dai sauransu.
Fasahar Molding
Ana amfani da hanyar yin gyare-gyare gabaɗaya don samar da ƙananan faifan sanyi mai matsananciyar sanyi ko ingantaccen tsari. Ka'idar ita ce cika wani adadin manna a cikin wani nau'i na siffar da ake bukata da girman da ake bukata, sa'an nan kuma amfani da matsa lamba daga sama ko kasa. Wani lokaci, yi amfani da matsin lamba daga bangarorin biyu don damfara manna zuwa siffa a cikin ƙirar. Sa'an nan kuma za a rushe samfurin da aka gama da shi, a sanyaya, a duba shi kuma a jeri shi.
Akwai injinan gyare-gyare na tsaye da a kwance. Hanyar gyare-gyare gabaɗaya tana iya danna samfur ɗaya kawai a lokaci ɗaya, don haka yana da ƙarancin ƙarancin samarwa. Koyaya, yana iya samar da ingantattun samfuran waɗanda wasu fasahohi ba za su iya yin su ba. Bugu da ƙari, ana iya inganta haɓakar samar da kayan aiki ta hanyar latsa nau'i-nau'i da yawa da kuma layin samarwa na atomatik.
Extruded graphite aka kafa ta hadawa high tsarki graphite barbashi tare da mai ɗaure sa'an nan extruding su a cikin wani extruder. Idan aka kwatanta da graphite isostatic, graphite extruded yana da girman ƙwayar hatsi da ƙarancin ƙarfi, amma yana da mafi girman thermal da lantarki.
A halin yanzu, yawancin samfuran carbon da graphite ana samarwa ta hanyar extrusion. Ana amfani da su galibi azaman abubuwan dumama da abubuwan da ke haifar da zafin jiki a cikin hanyoyin magance zafi mai zafi. Bugu da kari, graphite tubalan kuma za a iya amfani da matsayin electrodes don gudanar da halin yanzu canja wuri a electrolysis tafiyar matakai. Saboda haka, ana amfani da su sosai azaman hatimi na inji, kayan aikin thermal da kayan lantarki a cikin matsanancin yanayi kamar zafin jiki, matsa lamba, da babban gudu.
Fasahar Molding
Hanyar extrusion shine a loda manna a cikin silinda na latsa kuma a fitar da shi. Ana sanye da latsa tare da zoben extrusion mai maye gurbin (za a iya maye gurbinsa don canza siffar giciye da girman samfurin) a gabansa, kuma ana ba da baffle mai motsi a gaban zoben extrusion. Babban plunger na latsa yana samuwa a bayan silinda manna.
Kafin yin matsa lamba, sanya baffle a gaban zoben extrusion, sannan a yi matsi daga kishiyar hanya don damfara manna. Lokacin da aka cire baffle kuma ana ci gaba da matsa lamba, ana fitar da manna daga zoben extrusion. Yanke tsiri da aka fitar a cikin tsayin da ake so, sanyi kuma duba shi kafin tarawa. Hanyar extrusion shine tsarin samar da ci gaba mai ci gaba, wanda ke nufin cewa bayan an ƙara wasu adadin manna, samfuran da yawa (tubalan graphite, kayan graphite) na iya ci gaba da fitar da su.
A halin yanzu, yawancin samfuran carbon da graphite ana samarwa ta hanyar extrusion.
graphite mai girgiza yana da tsari iri ɗaya tare da matsakaicin girman hatsi. Bayan haka, ya zama sananne sosai saboda ƙarancin abun ciki na toka, ingantaccen ƙarfin injina, da kwanciyar hankali mai kyau na lantarki da zafi, kuma ana amfani da shi sosai don sarrafa manyan sikelin workpieces. Hakanan za'a iya ƙara ƙarfafawa bayan resin impregnation ko maganin anti-oxidation.
Ana amfani da shi sosai azaman dumama & abin rufewa a cikin samar da polysilicon da murhun silicon monocrystalline a cikin masana'antar hotovoltaic. Hakanan ana amfani dashi ko'ina a masana'antar dumama hoods, abubuwan musayar zafi, narkewa da simintin gyare-gyare, ginin n nodes da ake amfani da su a cikin hanyoyin lantarki, da masana'antar crucibles don narkewa da gami.
Fasahar Molding
Ka'idar yin graphite mai girgiza ita ce a cika tarar da cakuda mai kama da manna, sannan a sanya farantin karfe mai nauyi a samansa. A mataki na gaba, an haɗa kayan abu ta hanyar girgiza ƙirar. Idan aka kwatanta da extruded graphite, graphite kafa ta vibration yana da mafi girma isotropy. Ana samar da samfuran graphite ta hanyar extrusion.
Lokacin aikawa: Juni-17-2024