- 14
- Dec
Mgbidi nke Sintered
Mgbidi nke Sintered
Mullite bụ ọnụọgụ ọnụọgụ abụọ nke dị n’okpuru nrụgide nkịtị na sistemụ ọnụọgụ abụọ Al2O3-SiO2. Usoro kemịkalụ bụ 3Al2O3-2SiO2, na ihe mejupụtara ya bụ: Al2O3 71.8%, SiO2 28.2%. E jiri ya tụnyere mullite eke *, a na-emepụta mullite nke a na-ejikarị eme ihe, gụnyere mullite siri ike na mullite agwakọta.
Synthetic mullite bụ akụrụngwa na-etugharị ihe dị elu. Ọ nwere njiri mara nke mgbasawanye otu, nkwụsi ike nke okpomọkụ dị mma, ebe na-eme ka ọ dị nro dị elu, ọnụ ahịa obere okpomọkụ dị elu, isi ike dị elu, yana ezigbo nguzogide corrosion kemịkalụ.
Usoro mmepụta na usoro nke mullite siri ike:
Sintered mullite bụ nke bauxite eke dị elu dị ka akụrụngwa, a na-agbanye ya na kiln rotary dị elu karịa 1750 ℃ site na usoro nhọrọ na homogenization multi-larịị.
Njirimara arụmọrụ yana ngwa nke sintered mullite:
Sintered mullite nwere njirimara nke ọdịnaya dị elu, nnukwu njupụta buru ibu, nkwụsi ike nke okpomọkụ dị mma, obere uru okpomọkụ dị elu na ezigbo nguzogide corrosion kemịkalụ, na àgwà ya kwụsiri ike. N’otu oge ahụ, sintered mullite bụ mmepụta nke ụdị dị iche iche na ejighị n’aka. Akụrụngwa dị mma maka ihe mgbagha, oghere ebe ịdị ọcha, nkedo ziri ezi na ngwaahịa ndị ọzọ.
Ndepụta kemịkalụ anụ ahụ na kemịkalụ nke sintered mullite:
ọkwa | Al2O3% | SiO2% | Fe2O3% | R2O% | Nnukwu njupụta (g / cm3) | Mmiri absorption (%) |
M70 | 68-72 | 22-28 | ≤1.2 | ≤0.3 | ≤2.85 | ≤3 |
M60 | 58-62 | 33-28 | ≤1.1 | ≤0.3 | ≥2.75 | ≤3 |
M45 | 42-45 | 53-55 | ≤0.4 | ≤1.6 | ≥2.50 | ≤2 |