A na-emepụta crucible graphite na mkpuchi ya site na iji petroleum coke na graphite ntụ ntụ dị ka nchịkọta na coal pitch dị ka ihe nkedo, site na usoro usoro gụnyere igwakorita, ịpị, ịhịa aka na nhazi nhazi. Usoro eruba bụ nke a:

1) Tinye graphite ntụ ntụ na akụrụngwa nke graphitized petroleum coke particles. Usoro nwere ụdị irighiri anọ, ya bụ 5 ~ 2mm, 2 ~ 1mm, 1 ~ 0mm, na ihe na-erughị 0.075mm.
2) Tinye ihe ndị a kwadebere n'ite a na-agwakọta ma kpalie, tinyezie asphalt mmiri mmiri n'ime ite ahụ, ma gaa n'ihu na-akpalite ime ka asphalt banye na petroleum coke particles; Ọnụ ego asphalt mmiri mmiri agbakwunyere, n'ihe gbasara pasenti oke, nwere ike ịbụ mkpokọta mmanụ ala coke a kwadebere. 25% ruo 28% nke akụrụngwa granular na ihe mgbakwunye.
3) Tinye ntụ ọka a gwakọtara na mma n'ime igwe na-emepụta nrụgide (igwe na-akpụzi) maka ịkpụzi; nrụgide extrusion bụ 18-19MPa, na njupụta olu nke anụ ahụ a kpụrụ akpụ na-acha akwụkwọ ndụ akwụkwọ ndụ ruru ihe karịrị 1.68g/cm3.
4) Tinye crucible akwụkwọ ndụ akwụkwọ ndụ ahụ n'ime a pụrụ iche e mere kpo oku oku maka elu okpomọkụ okpomọkụ ọgwụgwọ na 1300 Celsius ka carbonize na coal pitch na green ahụ na-etolite elu n'ibu ike, ala resistivity, mma thermal kwụsie ike na chemical Njirimara. Crcible ngwaahịa a ṅara n'ọkụ kwụsie ike. Mgbe ị na-ebunye ọkụ ahụ, jupụta ya na ihe enyemaka iji hụ na crucible akwụkwọ ndụ akwụkwọ ndụ adịghị emebi n'oge usoro nsị. Usoro ikpo ọkụ nke ịcha nri nwere ike ịbụ akụkụ 566h. Usoro mmepụta ihe na-eri nri bụ ihe dịka ụbọchị 22-30, yana ọnụego ngafe nri nwere ike iru 92%.
5) Bee ihe a ṅara n'ọkụ nke ngwaahịa a ṅara n'ọkụ iji nweta nha achọrọ, ọdịdị, nkenke, wdg, ma mee ka ọ bụrụ ngwaahịa emechara nke na-emezu ihe achọrọ.