Isostatic graphite, nke a makwaara dị ka graphite nke a na-emepụta, na-ezo aka na usoro ebe a na-ejikọta ngwakọta nke akụrụngwa n'ime akụkụ akụkụ anọ ma ọ bụ gburugburu n'ime usoro a na-akpọ oyi isostatic pressing (CIP). Mpịakọta isostatic oyi bụ usoro nhazi ihe nke na-agbanwe nrịbama nke mmiri a kpọchiri akpọchi, nke na-enweghị ike ime ka ọ bụrụ akụkụ ọ bụla nke mmiri ahụ, gụnyere elu nke akpa ya.
Tụnyere usoro ndị ọzọ dị ka extrusion na ịma jijiji na-akpụ, teknụzụ CIP na-arụpụta graphite sịntetịt kacha isotropic.Isostatic graphitena-enwekwa nha ọka kacha nta nke graphite sịntetik ọ bụla (ihe dị ka 20 microns).
Usoro mmepụta nke graphite isostatic
Ịpịpị Istatic bụ usoro dị iche iche nke na-enye ohere ịnweta ihe mgbochi otu nwere oke anụ ahụ mgbe niile na akụkụ na isi ọ bụla.
Njirimara ahụkarị nke graphite isostatic:
• Nnukwu okpomọkụ na nguzogide kemịkalụ
• Magburu onwe okpomọkụ ujo eguzogide
• Igwe ọkụ eletrik dị elu
• High thermal conductivity
• Na-abawanye ike site na oke okpomọkụ
• Ọ dị mfe ịhazi
• Enwere ike imepụta ya na ịdị ọcha dị oke elu (<5 ppm)
Imepụta nkegraphite isostatic
1. Koke
Coke bụ ihe a na-emepụta n'ebe a na-emepụta mmanụ site na ikpo ọkụ coal (600-1200 ° C). A na-eme usoro a n'ime oven coke a haziri ahazi site na iji gas combustion na oke ikuku oxygen. Ọ nwere uru calorific dị elu karịa coal fosil nkịtị.
2. Na-etipịa
Mgbe ịlele akụrụngwa, a na-egwepịa ya na ụfọdụ urughuru nha. Pụrụ iche igwe maka egweri ihe onwunwe nyefee nnọọ mma coal ntụ ntụ enwetara n'ime pụrụ iche akpa na nkewa ha dị ka urughuru size.
Mgbapụta
Nke a bụ ngwaahịa sitere na coking nke coal siri ike, ya bụ ịsa nri na 1000-1200 Celsius na-enweghị ikuku. Pitch bụ mmiri mmiri ojii.
3. Igwakorita
Ka emechara usoro ntụ ọka coke, a na-agwakọta ya na pitch. A na-agwakọta akụrụngwa abụọ ahụ na oke okpomọkụ ka coal wee gbazee ma jikọta ya na ụmụ irighiri coke.
4. Nke abụọ pulverization
Mgbe usoro ngwakọta ahụ gasịrị, a na-emepụta obere bọọlụ carbon, nke a ga-agbanyerịrị ọzọ ka ọ bụrụ ihe dị mma.
5. Isostatic ịpị
Ozugbo a kwadebere ihe dị mma nke nha achọrọ, usoro ịpị na-esote. A na-etinye ntụ ntụ nke enwetara na nnukwu ebu, akụkụ ya kwekọrọ na njedebe ikpeazụ. A na-ekpughe ntụ ntụ carbon dị na ebu na nrụgide dị elu (karịa 150 MPa), nke na-emetụta otu ike na nrụgide na ihe ndị ahụ, na-ahazi ha n'ụzọ dị nro ma si otú a kesaa ya. Usoro a na-enye ohere iji nweta otu graphite paramita n'oge ebu.
6. Carbonization
Oge na-esote na nke kachasị ogologo (ọnwa 2-3) na-eme achịcha n'ime ọkụ. A na-etinye ihe a na-agbanye n'ụdị dị iche iche na nnukwu ọkụ, ebe okpomọkụ na-eru 1000 ° C. Iji zere ntụpọ ọ bụla ma ọ bụ mgbawa, a na-achịkwa okpomọkụ dị na ọkụ ọkụ mgbe niile. Mgbe emechara achịcha, ngọngọ ahụ ruru ike siri ike achọrọ.
7. Pitch impregnation
N'oge a, a ga-etinye ihe mgbochi ahụ na pitch ma kpọọ ya ọkụ ọzọ iji belata porosity ya. A na-ebukarị impregnation na pitch nwere viscosity dị ala karịa pitch eji dị ka ihe nkedo. Achọrọ viscosity ala iji mejupụta oghere ndị ahụ nke ọma.
8. Graphitization
N'oge a, a na-enye iwu matrix nke carbon carbon na usoro ngbanwe site na carbon gaa na graphite ka a na-akpọ graphitization. Graphitization bụ ikpo ọkụ nke ngọngọ emepụtara na okpomọkụ nke ihe dịka 3000 Celsius. Mgbe graphitization, njupụta, eletriki conductivity, thermal conductivity na corrosion iguzogide na-mma nke ukwuu, na nhazi arụmọrụ na-akawanye mma.
9. Ihe eserese
Mgbe graphitization gasịrị, a ga-enyocha njirimara niile nke graphite - gụnyere nha ọka, njupụta, ịgbagọ na ike mkpakọ.
10. Nhazi
Ozugbo a kwadebere ihe ahụ nke ọma ma lelee ya, enwere ike ịmepụta ya dịka akwụkwọ ndị ahịa si dị.
11. Ịdị ọcha
Ọ bụrụ na a na-eji graphite isostatic eme ihe na semiconductor, otu silicon kristal na ụlọ ọrụ ume atomiki, achọrọ ịdị ọcha dị elu, ya mere a ga-ewepụ ihe niile adịghị ọcha site na ụzọ kemịkalụ. A na-emekarị iji wepụ ihe ndị na-adịghị ọcha graphite bụ itinye ngwaahịa graphitized na gas halogen ma kpoo ya ruo ihe dịka 2000 Celsius.
12. ọgwụgwọ elu
Dabere na ngwa nke graphite, elu ya nwere ike ịbụ ala ma nwee ebe dị mma.
13. Mbupu
Mgbe nhazi ikpeazụ gasịrị, a na-achịkọta nkọwa graphite emechara ma zigara onye ahịa ya.
Maka ozi ndị ọzọ gbasara nha dịnụ, akara ule isostatic graphite na ọnụ ahịa, biko nweere onwe gị ịkpọtụrụ anyị. Ndị injinia anyị ga-enwe obi ụtọ inye gị ndụmọdụ maka ihe ndị kwesịrị ekwesị ma zaa ajụjụ gị niile.
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Oge nzipu: Sep-14-2024