Kedu otu esi ahọrọ ihe nkedo na-eguzogide na-eguzogide maka akụkụ ndị na-adịghị ike dị ka nsị ntụtụ n’ọnụ ciment?

N’ọkụ sịmọndị akọrọ ọhụrụ, ọnụ ọkụ n’ekwú ọkụ, oghere ntụtụ coal na ọnọdụ ndị ọzọ na-enwe mmetụta doro anya nke oke okpomọkụ, ujo dị ọkụ, corrosion na mbibi, yana ihe mkpuchi mkpuchi adịghị mma nke ukwuu. N’ọnọdụ ndị a na-ahụkarị, ihe na-eguzogide okpomoku na ihe ndọghachi azụ maka ngwakọta ciment nwere mineral dị ka ihe na-adịghị mma, mullite, andalusite, na carbide silicon.

Njirimara akụrụngwa. A na -ekewa ihe ndọghachi azụ n’ime ihe nrụpụta calcined refractory na ngwakọ ọkụ eletrik. N’ime ha, a na -enweta ihe na -adịghị mma nke ngwakọ ọkụ eletrik na -agbaze site na -agbaze iron oxide ma ọ bụ bauxite n’ime ọkụ na -ekpo ọkụ wee mezie mmiri jụrụ oyi. Ngwongwo ọkpọkọ fused nwere nnukwu kristal na -agbanwe agbanwe, njupụta dị elu, oghere oghere ole na ole na ike dị elu. Calcined refractory nwere obere kristal, ọtụtụ oghere oghere na ike dị ala, mana ọ nwere nguzogide ọkụ ọkụ ka mma. Na mkpokọta, nguzogide ọkụ na nguzogide abrasion dị mma nke ukwuu, mana nguzogide ujo adịghị mma, nnyefe ọkụ dị ukwuu, na nrapado nke ihe mbido na-eguzogide alkali adịghị mma.

A na -ekewa Mullite n’ụdị abụọ: ihe mkpuchi ọkpọkọ akpọrọ akpọchiri akpọchi. N’ime ha, njirimara njiri ọkpọkọ mullite fused siri ike. Na mkpokọta, mullite nwere njirimara nke ezigbo ntụkwasị obi volumetric dị elu, ike mkpakọ dị elu, nguzogide nchekasị siri ike, nguzogide ujo dị elu dị elu yana obere mbufe ọkụ.

Andalusite bụ otu n’ime mineral dị na kyanite otu. Kyanite mineral na-ezo aka n’ọtụtụ mineral dị iche iche nwere usoro kemịkalụ Al2O3-SiO2: kyanite, andalusite na sillimanite. Mkpa nke ụdị kristal ndị a bụ nrụgharị dị elu, agba dị ọcha na nguzogide nrapado dị mma. N’ime usoro ịgbakọ ọnụ, ha na -agbanwe ka mullite na kemịkalụ nwere nnukwu mmiri sio2, yana mmụba na -esonyere ya (Kyanite bụ 16%~ 18%, andalusite bụ 3%~ 5%, sillimanite bụ 7%~ 8% ).

Mgbe 1300 ~ 1350 ℃, kyanite na -agbanwe n’ime mullite na calcite, wee jiri olu +18%gbanwee. A machibidoro oriri nke kyanite n’ihi oke mmụba. Enwere ike iji ọzịza nke mgbanwe kyanite na -agbada iwelata ihe mkpuchi mkpuchi na -enweghị mgbagha, enwere ike iji mullite rụpụtara iji melite nguzogide ujo dị ọkụ nke ihe ndọghachi azụ. Agbanyeghị, calcite kpatara ntụgharị kyanite adịghị mma maka nguzogide ujo ikuku.

Na 1400 ° C, andalusite na-agbanwe gaa n’ụdị mullite na silicone laminated glass, wee jiri olu nke +4%gbanwee. N’ihi na ọzịza dị obere, ọ bara uru ịbawanye oriri nke andalusite. Enwere ike iji ọzịza nke mgbanwe nke andalusite wezuga mbelata nke ihe mkpuchi ihe na -adịghị agbanwe agbanwe, enwere ike iji mullite rụpụtara iji melite nguzogide ujo dị ọkụ nke ihe ndọghachi azụ. Ihe dị iche bụ na ọkwa iko nwere silicon dị elu nke ntụgharị andalusite nwere ọnụọgụ mgbasawanye dị larịị, nke bara ezigbo uru iji melite nguzogide ujo nke ihe na-emebi emebi.

1500 ℃, sillimanite na -agbanwe n’ime mullite; gbanwere +8%maka izu. N’echiche, enwere ike iji ọzịza nke mgbanwe sillimanite na -eme ka mbelata nke ihe mkpuchi ihe na -adịghị agbanwe agbanwe, na mullite na -esite na ya bara uru iji melite nguzogide ujo dị ọkụ nke ihe ndọghachi azụ.

Ya mere, a na -ejikarị kyanite dị ka antiseptik na ihe mkpuchi mkpuchi adịghị ala na ọkara. a na-ejikarị andalusite dị ka ọgwụ antiseptik na ihe mkpuchi ihe na-adịghị agbanwe agbanwe na ọkwa dị elu. mgbanwe mgbanwe okpomọkụ nke sillimanite dị oke elu, ọ na -abụkarịkwa ihe na -adịghị ahụkebe ime ihe mkpuchi mkpuchi na -enweghị atụ. Ngwa onye mgbasa ozi ngwa ngwa.