Kugwiritsa ntchito graphite yapamwamba kwambiri: Graphite ufa.

Kugwiritsa ntchito graphite yapamwamba kwambiri: Graphite ufa. N'chifukwa chiyani ufa wa graphite uli wotchuka kwambiri? Msika wapakhomo wama graphite heaters ukuyembekezeka kukhala wodalirika. N'chifukwa chiyani ma graphite heaters akudziwika kwambiri pakati pa anthu? M'malo mwake, chifukwa chomwe chikuchulukirachulukira pakati pa anthu sichingasiyane ndi zabwino zake. Tsopano, tiyeni tiwone ubwino weniweni wa chowotcha cha graphite pamodzi!

1. Zimathetsa kwathunthu makutidwe ndi okosijeni ndi decarburization pamtunda wa workpiece panthawi yotentha, ndipo amatha kupeza malo oyera popanda wosanjikiza wowonongeka. Izi ndizofunika kwambiri pakuwongolera magwiridwe antchito a zida zomwe zimangogaya mbali imodzi pogaya (monga ma twist drills pomwe decarburization layer yomwe ili pamtunda wa groove imawonekera mwachindunji kumphepete pambuyo popera).
2. Sichimayambitsa kuipitsidwa kwa chilengedwe ndipo sichifuna chithandizo cha zinyalala zitatuzo.

3. Ili ndi digiri yapamwamba ya mechatronics. Kutengera kusintha kwa kuyeza kwa kutentha ndi kuwongolera kulondola, kusuntha kwa zida zogwirira ntchito, kusintha kwamphamvu kwa mpweya, kusintha mphamvu, ndi zina zonse zitha kukonzedweratu ndikukhazikitsidwa, kuzimitsa ndi kutenthetsa kumatha kuchitika pang'onopang'ono.

4. Kugwiritsa ntchito mphamvu kumakhala kochepa kwambiri kusiyana ndi ng'anjo zosambira zamchere. Chipinda chotenthetsera chamakono cha graphite chotenthetsera chimakhala ndi makoma otsekereza ndi zotchinga zopangidwa ndi zida zapamwamba kwambiri zotchingira, zomwe zimatha kuyika kwambiri mphamvu yamagetsi yamagetsi mkati mwa chipinda chotenthetsera, ndikupeza mphamvu zopulumutsa mphamvu.

5. Kulondola kwa kuyeza kwa kutentha kwa ng'anjo ndi kuyang'anitsitsa kwakhala bwino kwambiri. Chizindikiro cha thermocouple chimafika ± kutentha kwa ng'anjo1.5°c. Komabe, kusiyana kwa kutentha pakati pa magawo osiyanasiyana azinthu zambiri zogwirira ntchito mu ng'anjo kumakhala kwakukulu. Ngati kuyendetsedwa mokakamiza kwa gasi wosowa kwambiri kumatengera, kusiyana kwa kutentha kumatha kuyendetsedwa mkati mwa ± 5 ° C.

Degassing ndi chodabwitsa cha zinthu zomwe zimatuluka pang'onopang'ono mu chowotcha cha graphite ndipo ndiye nkhani yofunika kwambiri pakugwirira ntchito kwa chowotcha cha graphite. Maselo a maselo opangidwa ndi kudzikundikira kwa mpweya ndi zakumwa amatha kumamatira pamwamba pa chinthu chilichonse cholimba. Chifukwa cha kuchepa kwapang'onopang'ono kwa kuthamanga, zigawo za ma molekyuluzi zimasanduka nthunzi pang'onopang'ono chifukwa mphamvu za malowa zimakhala zochepa kusiyana ndi zomwe zimatulutsidwa ndi chowotcha cha graphite. Nayitrojeni, zosungunulira zosasunthika ndi mipweya ya inert imakhala ndi chiwopsezo chofulumira. Mafuta ndi nthunzi wamadzi zidzapitirira kumamatira pamwamba ndipo sizidzasintha mpaka maola angapo pambuyo pake. Zida za porous, particles fumbi ndi zinthu zina zachilengedwe zidzawonjezera malo, kotero ndizotheka kuchititsa kuti degassing ichitike. Kutentha ndi kutentha zidzapereka mphamvu zokwanira kuti mamolekyu oyamwa achoke pamwamba. Pamene kutentha kwa ng'anjo kumakwera, kumatha kumasula mamolekyu omwe amamatira pamwamba pa kutentha kochepa. Choncho, pamene kutentha kwa ng'anjo kumakwera, chodabwitsa cha degassing chidzawonjezeka pang'onopang'ono.

Kapangidwe, kuwongolera kutentha, njira yotenthetsera ndi mpweya mkati mwa ng'anjo ya graphite chotenthetsera zonse zidzakhudza mwachindunji mtundu wa mankhwala pambuyo popanga chowotcha cha graphite. Mu ng'anjo yopangira ng'anjo, kukweza kutentha kwachitsulo kungachepetse kukana kusungunuka, koma kutentha kwambiri kungayambitse makutidwe ndi okosijeni a tirigu kapena kuwotcha mopitirira muyeso, kukhudza kwambiri khalidwe la mankhwala mkati mwa chowotcha cha graphite. Panthawi ya chithandizo cha kutentha, ngati chitsulo chimatenthedwa kufika pamtunda wina pamwamba pa kutentha kwakukulu ndipo mwadzidzidzi kuzirala ndi wothandizira kuzizira, kuuma ndi mphamvu zachitsulo zimatha kuwonjezeredwa. Ngati chitsulocho chatenthedwa kufika pamalo enaake pansi pa kutentha kwakukulu ndiyeno kuziziritsidwa pang’onopang’ono, zingapangitse chitsulocho kukhala cholimba.

Kuti mupeze zogwirira ntchito zokhala ndi malo osalala komanso miyeso yolondola, kapena kuchepetsa zitsulo zachitsulo pofuna kuteteza nkhungu ndi kuchepetsa malipiro a makina, ng'anjo zosiyanasiyana zotentha za oxidation ndi zopanda oxidation zingathe kukhazikitsidwa. Mu ng'anjo yoyatsira moto yopanda okosijeni pang'ono kapena osakwanira, kuyaka kosakwanira kwamafuta kumatulutsa mpweya wochepa. Kutenthetsa workpiece mmenemo kungathe kuchepetsa makutidwe ndi okosijeni kuwotcha chiwopsezo cha kutayika kwa zosakwana 0.6%. Ma graphite apamwamba kwambiri amatanthauza ufa wa graphite wokhala ndi mpweya wopitilira 99.9%. graphite yoyera kwambiri yokhala ndi mpweya wambiri imakhala ndi magetsi abwino kwambiri, mafuta odzola, kukana kutentha, kukana kuvala, ndi zina zotero.

High-purity graphite imakhala ndi ntchito zazikulu pantchito yopanga mafakitale. Amagwiritsidwa ntchito m'mafakitale monga magetsi, lubrication, ndi zitsulo. Pakupanga graphite yapamwamba kwambiri, zomwe zili zonyansa ziyenera kuyendetsedwa mosamalitsa kuchokera kuzinthu zopangira, ndipo zida zokhala ndi phulusa lochepa ziyenera kusankhidwa. Komanso, kuyesayesa kuyenera kuchitidwa kuti aletse kuwonjezera zonyansa momwe zingathere panthawi yopanga. Komabe, kuchepetsa zonyansa pamlingo wofunikira makamaka zimachitika munjira ya graphitization. Graphitization imachitika pa kutentha kwambiri, ndipo ma oxide ambiri a zinthu zodetsa amawola ndikutuluka nthunzi pakutentha kotereku. Kutentha kwapamwamba kwa graphitization, zonyansa zambiri zimatulutsidwa, komanso kukwezeka kwa chiyero chapamwamba cha graphite chopangidwa. Kugwiritsa ntchito ma graphite apamwamba kwambiri kumatengera mwayi wamadulidwe ake abwino kwambiri amagetsi, ntchito yopaka mafuta, kukana kutentha kwambiri, etc.

Chifukwa chomwe graphite yoyera kwambiri imakhala yoyera kwambiri komanso zonyansa zochepa zonse zimadalira njira yabwino yopangira ndi zida. Zonyansa ndizochepera 0.05%. Colloidal graphite yathu, nano-graphite, high-purity graphite, ultrafine graphite ufa ndi zinthu zina za graphite ufa zimagwiritsidwa ntchito kwambiri m'mafakitale a mankhwala, mafuta a petroleum ndi mafuta. Ufa wa graphite wapamwamba kwambiri umagwiritsidwa ntchito pokonza ndi kupanga zinthu zotenthetsera zamagetsi, zoumba zomangira, ziboliboli zachitsulo zoyenga kwambiri zosungunula, zitsulo zamtengo wapatali za graphite, zida za semiconductor, ndi zina zambiri.