Nkọwa Ngwaahịa: graphite
Ntụ ntụ graphite dị nro, isi awọ ojii, na-esi ísì ụtọ ma nwee ike imerụ akwụkwọ ahụ. Ike ya bụ 1-2, ma na-abawanye ruo 3-5 ka ihe ndị na-adịghị ọcha na-abawanye n'akụkụ kwụ ọtọ. Oke ike ndọda ahụ kpọmkwem bụ 1.9-2.3. N'ọnọdụ nkewapụ oxygen, ebe agbaze ya dị n'elu 3000 ℃, nke bụ otu n'ime mineral kachasị anabata okpomọkụ. N'ọnọdụ okpomọkụ ụlọ, ihe kemịkalụ nke ntụ ntụ graphite kwụsiri ike, anaghị agbaze na mmiri, acid na-agbaze, alkali na ihe ndị na-agbaze organic; ihe ahụ nwere oke iguzogide okpomọkụ na njikwa, enwere ike iji ya dị ka ihe na-anaghị agbaze, ihe na-eduzi, ihe na-eguzogide iyi na ihe na-eme ka mmanụ dị.
N'ihi nhazi pụrụ iche ya, graphite nwere njirimara ndị a: 1. Oke okpomọkụ na-eguzogide: ebe agbaze nke graphite bụ 3850 ± 50 ℃, ebe esi mmiri bụ 4250 ℃. Nke ahụ pụtara, ọnụego mfu ibu na oke nke mgbasawanye okpomọkụ dị obere mgbe a na-eji sintering okpomọkụ dị elu, ike nke graphite na-abawanye ka okpomọkụ na-abawanye. Na 2000 ℃, ike nke graphite na-amụba okpukpu abụọ. 2. Mmanya: mmanya nke graphite dabere na nha graphite. Ka nha ahụ buru ibu, otú ahụ ka mmanya ahụ na-ebelata, arụmọrụ mmanya ahụ ka mma. 3. Nkwụsi ike kemịkalụ: graphite nwere ezigbo nkwụsi ike kemịkalụ na okpomọkụ ụlọ, na-eguzogide acid, alkali na organic solvent corrosion. 4. Plasticity: graphite nwere ezigbo ike ma enwere ike ịpịnye ya n'ime mpempe akwụkwọ dị gịrịgịrị. 5. Nguzogide ọkụ: mgbe ejiri graphite mee ihe na okpomọkụ ụlọ, ọ nwere ike iguzogide mgbanwe dị ukwuu nke okpomọkụ na-enweghị mmebi. Mgbe okpomọkụ rịrị elu na mberede, olu graphite agaghị agbanwe nke ukwuu, ọ gaghịkwa enwe mgbawa ọ bụla.
Ojiji:
1. Dịka ihe na-anaghị emegharị ahụ: graphite na ngwaahịa ya nwere njirimara nke iguzogide okpomọkụ dị elu na ike dị elu. A na-ejikarị ha eme ihe maka imepụta iheihe mkpuchi graphitena ụlọ ọrụ ígwè, a na-ejikarị ya eme ihe dị ka ihe nchebe maka ingot ígwè na mkpuchi ọkụ ígwè.
2. Dịka ihe na-anaghị emebi emebi: a na-ejikarị graphite eme ihe dị ka mmanụ n'ime ụlọ ọrụ igwe. Mmanụ mmanụ anaghị adabara maka oke ọsọ, oke okpomọkụ na oke nrụgide.
3. Graphite nwere ezigbo ike kemịkalụ. A na-ejikarị ya eme ihe n'ụlọ ọrụ petrochemical, hydrometallurgy, mmepụta acid-base, eriri sịntetik, ime akwụkwọ na ngalaba ụlọ ọrụ mmepụta ihe ndị ọzọ, nke nwere ike ịchekwa ọtụtụ ihe eji eme ígwè.
4. Enwere ike iji graphite mee ihe dị ka pensụl, agba na ihe na-eme ka ọ dị ọcha. Mgbe emechara nhazi pụrụ iche, enwere ike iji graphite mee ihe dị iche iche maka ngalaba ụlọ ọrụ mmepụta ihe dị mkpa.
Oge ozi: Maachị-26-2021