Ntụ ntụ graphite nke e ji mee ihe dị ka elektrọd graphite nwere ọtụtụ uru. Agbanyeghị, otu esi ewepụta uru nke ihe a, nweta mmezi arụmọrụ n'ezie, mbelata ọnụ ahịa na mmụba asọmpi ahịa, ihe ndị a abụghị naanị nsogbu ndị na-emepụta graphite ga-atụle, kamakwa nsogbu ndị ndị na-eji graphite kwesịrị iwere dị ka ihe dị mkpa. Ya mere, mgbe a na-etinye ihe graphite, olee nsogbu ndị a ga-ebu ụzọ dozie?
Iwepụ uzuzu: N'ihi nhazi obere ihe dị na graphite, a na-emepụta nnukwu uzuzu n'oge nhazi igwe, nke nwere mmetụta dị ukwuu na gburugburu ebe obibi ụlọ ọrụ mmepụta ihe. Na mgbakwunye, mmetụta nke uzuzu na akụrụngwa na-egosipụtakarị na mmetụta ya na ọkọnọ ike nke akụrụngwa ahụ. N'ihi ezigbo ike eletriki nke graphite, ozugbo ọ banyere na igbe ike, ọ na-enwekarị ike ibute obere sekit ike na nsogbu ndị ọzọ. Ya mere, a na-atụ aro ka e nwee igwe nhazi graphite pụrụ iche maka nhazi. Agbanyeghị, n'ihi nnukwu ọnụ ahịa itinye ego nke akụrụngwa nhazi pụrụ iche maka graphite, ọtụtụ ụlọ ọrụ na-akpachara anya nke ọma n'akụkụ a. N'ọnọdụ ndị dị otú ahụ, enwere ike iji ọtụtụ ngwọta ndị a:
Mbupu elektrọd graphite: Ka ojiji graphite na-abawanye ụba n'ụlọ ọrụ ebu, ọtụtụ ụlọ ọrụ mmepụta nkwekọrịta ebu (OEM) ewebatala azụmaahịa OEM nke elektrọd graphite.
Mgbe a mịchara mmanụ: Mgbe a zụtara graphite, a na-ebu ụzọ mikpuo ya na mmanụ ọkụ ruo oge ụfọdụ (oge a kapịrị ọnụ dabere na olu nke graphite ahụ), wee tinye ya n'ebe a na-arụzi ihe maka nhazi ya. N'ụzọ dị otu a, uzuzu graphite agaghị efegharị gburugburu kama ọ ga-ada. Nke a ga-ebelata mmetụta ọ na-enwe na akụrụngwa na gburugburu ebe obibi.
Ịgbanwe ebe a na-eji igwe arụ ọrụ: Ihe a na-akpọ mgbanwe bụ itinye ihe nhicha igwe n'ebe a na-eji igwe arụ ọrụ nkịtị.
Oghere mwepụta n'oge nhazi nke graphite mwepụta: N'adịghị ka ọla kọpa, n'ihi ọsọ mwepụta ngwa ngwa nke elektrọd graphite, ọtụtụ slag nhazi na-emebi emebi kwa oge nkeji. Otu esi ewepụ slag nke ọma na-aghọ nsogbu. Ya mere, ọ dị mkpa ka oghere mwepụta buru ibu karịa nke ọla kọpa. N'ikwu ya n'ozuzu, mgbe ị na-edozi oghere mwepụta, oghere mwepụta nke graphite buru ibu karịa nke ọla kọpa 10 ruo 30%.
Nghọta ziri ezi nke adịghị ike ya: E wezụga uzuzu, graphite nwekwara ụfọdụ adịghị ike. Dịka ọmụmaatụ, mgbe a na-ahazi ihe ndị e ji enyo mee, ma e jiri ya tụnyere elektrọd ọla kọpa, elektrọd graphite anaghị enwe ike iru mmetụta achọrọ. Iji nweta mmetụta elu ka mma, a ga-ahọrọ nha ihe kacha mma nke graphite, ọnụ ahịa nke ụdị graphite a na-adịkarị okpukpu anọ ruo isii karịa nke graphite nkịtị. Na mgbakwunye, ojiji graphite dị obere. N'ihi usoro mmepụta, naanị obere akụkụ nke graphite ka enwere ike iji maka mmeputakwa na ojiji. Enweghị ike iji graphite mkpofu eme ihe ọzọ maka oge a, si otú a na-eweta ụfọdụ ihe ịma aka na njikwa gburugburu ebe obibi nke ụlọ ọrụ. N'akụkụ a, anyị nwere ike inye ndị ahịa ohere imegharị graphite mkpofu n'efu iji zere ịkpata nsogbu maka asambodo gburugburu ebe obibi ha.
Ịchapu n'ime nhazi igwe: Ebe ọ bụ na graphite na-agbawa agbawa karịa ọla kọpa, ọ bụrụ na ejiri otu ụzọ ahụ dị ka elektrọd ọla kọpa hazie graphite, ọ dị mfe ime ka elektrọd ndị ahụ gbawa agbawa, karịsịa mgbe a na-ahazi elektrọd ndị dị gịrịgịrị. N'akụkụ a, enwere ike inye ndị na-emepụta ebu nkwado teknụzụ n'efu. A na-enweta ya site na nhọrọ nke ngwaọrụ ịcha, ụzọ esi agafe ngwaọrụ, na nhazi ezi uche dị na paramita nhazi. E mepụtara ihe nlele flake graphite eke site na ịpị oyi na-enweghị ihe njikọ site na iji flake graphite eke. A mụrụ mmetụta nke mgbanwe n'ịmepụta nrụgide na ijide oge nrụgide na njupụta, porosity na ike flexural nke ihe nlele n'otu n'otu. E nyochachara mmekọrịta dị n'etiti microstructure na ike flexural nke ihe nlele flake graphite eke n'ụzọ dị mma. A họọrọ sistemụ abụọ, boric acid - urea na tetraethyl silicate - acetone - hydrochloric acid, iji mụọ ma kparịta ihe onwunwe antioxidant na usoro nke ntụ ntụ graphite eke na ihe nlele electrode graphite eke tupu na mgbe ọgwụgwọ antioxidant gasịrị. Ihe dị na nyocha na nsonaazụ bụ isi bụ ndị a: A mụrụ arụmọrụ nhazi nke flake graphite eke na mmetụta nke ọnọdụ nhazi na microstructure na ihe onwunwe. Nsonaazụ ya gosiri na ka nrụgide nhazi nke ihe nlele flake graphite eke si dị, otú ahụ ka njupụta na ike mgbanwe nke ihe nlele ahụ si dị elu, ebe obere porosity nke ihe nlele ahụ. Oge nrụgide ijide ihe anaghị enwe mmetụta dị ukwuu na njupụta nke ihe nlele ahụ. Mgbe ọ karịrị nkeji ise, nhazi nke ihe nlele ahụ ka mma. Ike mgbanwe na-egosi anisotropy doro anya, ike mgbanwe nkezi n'akụkụ dị iche iche bụ 5.95MPa, 9.68MPa, na 12.70MPa n'otu n'otu. Anisotropy nke ike mgbanwe nwere njikọ chiri anya na obere nhazi nke graphite.
A mụrụ ihe gbasara ihe ndị na-egbochi mmeghachi omume nke sistemu boron-nitrogen nke e ji usoro ngwọta na usoro sol kwadebe na ntụ ntụ flake graphite eke nke e ji silica sol kpuchie tupu na mgbe e mesịrị. Nsonaazụ ya gosiri na ka ọnụọgụgụ ihe ndị na-akpata mmeghachi omume na-abawanye, ọnụọgụ silica sol na sistemu boron-nitrogen nke e ji ntụ ntụ graphite kpuchie na-abawanye, ihe ndị na-akpata mmeghachi omume na-akawanye mma. Okpomọkụ oxidation mbụ nke flake graphite eke bụ 883K, ọnụego oxidation ibu na 923K bụ 407.6mg/g/h. A tụbara ntụ ntụ graphite ahụ ugboro itoolu n'otu n'otu na sistemu boric acid - urea na sistemu ethyl silicate - ethanol - hydrochloric acid. Mgbe ọgwụgwọ okpomọkụ gasịrị ruo otu awa n'okpuru ikuku nke 1273K na N2, ọnụego oxidation ibu nke flake graphite eke na 923K bụ 47.9 mg/g/h na 206.1mg/g/h n'otu n'otu. Mgbe ọgwụgwọ okpomọkụ gasịrị ruo otu awa n'ime ikuku N2 nke 1973K na 1723K n'otu n'otu, ọnụego mbelata ibu oxidation nke flake graphite eke na 923K bụ 3.0mg /g/h na 42.0mg/g/h n'otu n'otu; Sistemụ abụọ a nwere ike ibelata ọnụego mbelata ibu oxidation nke flake graphite eke, mana mmetụta antioxidant nke sistemụ boric acid - urea ka mma karịa nke sistemụ ethyl silicate - ethanol - hydrochloric acid.
A na-ejikarị elektrọd graphite eme ihe n'ọtụtụ ụlọ ọrụ dịka imepụta ígwè n'ọkụ eletrik, mmepụta phosphorus n'ime ọkụ ígwè, ịgbaze ájá magnesia eletrik, nkwadebe agbaze eletrik nke ihe ndị na-adịghị emegharị ahụ, electrolysis aluminom, na mmepụta phosphorus ụlọ ọrụ mmepụta, silicon, na calcium carbide. E kewara elektrọd graphite n'ụdị abụọ: elektrọd graphite eke na elektrọd graphite arụrụ arụ. Ma e jiri ya tụnyere elektrọd graphite arụrụ arụ, elektrọd graphite eke anaghị achọ usoro kemịkalụ graphite. N'ihi ya, usoro mmepụta nke elektrọd graphite eke na-ebelata nke ukwuu, oriri ike na mmetọ na-ebelata nke ukwuu, ọnụ ahịa na-ebelatakwa nke ukwuu. Ha nwere uru ọnụahịa doro anya na uru akụ na ụba, nke bụ otu n'ime isi ihe kpatara mmepe nke elektrọd graphite eke.
Tinyere nke ahụ, elektrọd graphite eke bụ ngwaahịa graphite eke nke bara uru nke ukwuu ma nwee mmepe na uru dị ukwuu. Agbanyeghị, arụmọrụ nhazi, iguzogide oxidation na ihe onwunwe mekaniki nke elektrọd graphite eke dị ala ugbu a karịa nke elektrọd graphite eke, nke bụ ihe mgbochi kachasị na mmepe ha. Ya mere, imeri ihe mgbochi ndị a bụ isi ihe dị mkpa iji mepụta ojiji nke elektrọd graphite eke.
A mụrụ ihe gbasara ihe ndị na-egbochi antioxidant nke sistemu boron-nitrogen nke e ji usoro ngwọta na usoro sol kwadebe na blọk flake graphite eke nke e ji silica sol kpuchie tupu na mgbe e mesịrị. Nsonaazụ ya na-egosi na ihe ndị na-egbochi antioxidant nke blọk graphite eke nke e ji silica sol kpuchie na-aka njọ ka ọnụọgụ nke ihe ndị na-akpata impregnations na-abawanye. Blọk graphite eke nke e ji usoro boron-nitrogen kpuchie nwere ihe ndị na-akpata antioxidant ka mma ka ọnụọgụ nke ihe ndị na-akpata impregnations na-abawanye. Ọnụọgụ mbelata ibu nke ihe ndị na-akpata oxidation nke blọk graphite eke na 923K na 1273K bụ 122.432mg/g/h na 191.214mg/g/h, n'otu n'otu. E tinyere blọk graphite eke ugboro itoolu n'otu n'otu na sistemu boric acid - urea na sistemu ethyl silicate - ethanol - hydrochloric acid. Mgbe a gwọchara okpomọkụ ruo otu awa n'ime ikuku nke 1273K na N2, ọnụego mbelata ibu oxidation na 923K bụ 20.477mg/g/h na 28.753mg/g/h, n'otu n'otu. Na 1273K, ha bụ 37.064mg/g/h na 54.398mg/g/h n'otu n'otu; Mgbe a gwọchara ha na 1973K na 1723K n'otu n'otu, ọnụego mbelata ibu oxidation nke blọk graphite eke na 923K bụ 8.182 mg/g/h na 31.347mg/g/h n'otu n'otu; Na 1273K, ha bụ 126.729mg/g/h na 169.978mg/g/h n'otu n'otu; Sistemụ abụọ a nwere ike ibelata ọnụego mbelata ibu oxidation nke blọk graphite eke nke ukwuu. N'otu aka ahụ, mmetụta antioxidant nke sistemụ boric acid - urea dị elu karịa nke sistemụ ethyl silicate - ethanol - hydrochloric acid.
Oge ozi: Jun-12-2025