Usoro mmepụta nke reactive sintering silicon carbide

silicon carbide mmeghachi omume-sintered bụ ọhụrụ ụdị elu-tech ceramics, nke nwere elu ike, elu ike ike, ezigbo eyi na-eguzogide na corrosion iguzogide, na-eji ọtụtụ ebe na metallurgy, petrochemical, electronics, aerospace na ndị ọzọ ubi. Ngwaahịa na silicon carbide abrasive inyeaka carbon ojii, graphite na dị iche iche nwekwara, na-eji akọrọ pressing, extrusion ma ọ bụ wụsara ụzọ mee porous àgwà, mgbe ahụ na-esonụ ọnụ ịghọta mmepụta usoro nke reactive sintering silicon carbide!

Ihe a rụpụtara bụ atụmatụ teknụzụ tozuru oke mgbe ọtụtụ puku nyocha nke onye mepụtara kemgbe ọtụtụ afọ iji kwalite usoro akụrụngwa na usoro mmepụta, ọkachasị usoro nhịahụ pụrụ iche na-aga n'ihu.

Na nkwupụta 1 nke ihe mepụtara, akụkụ dị arọ nke silicon carbide ntụ ntụ bụ akụkụ 5 ~ 8, carbon ojii bụ akụkụ 0.5-1.5, graphite bụ akụkụ 1-1.5, na ihe nkedo bụ akụkụ 0.1-0.5. N'ime ha, ọka gradient nke silicon carbide bụ sic (90-30m) 3-5 akụkụ, sic) 30-0.8m) 2-3 akụkụ. A na-etinye methyl cellulose na PVA ntụ ntụ nke gazelle n'ime mmiri kwesịrị ekwesị 0.1-0.5 n'otu n'otu, a na-enwetakwa ihe ngwọta nke ọma mgbe kpochara.

1. Gwakọta ụdị ntụ ntụ, adhesives na ngwọta ndị a kwadebere dị ka usoro ahụ si dị ma kpalie nke ọma.

2, hichaa oghere nkedo ebu, rute 0.1Mpa, ntụtụ nrụgide nke slurry agwakọta. Mgbe oge ụfọdụ gasịrị, a na-ahapụ slurry ahụ ma wepụ ihe oghere ahụ. Debe na 30-70 maka awa 18-20 maka ihicha.

3. Kpochapụ billet dị ka ihe ndị a chọrọ si dị na eserese.

4, tinye mmeghachi omume sintering billet n'ime ọkụ, gbakwunye ịdị arọ nke 1-3 akụkụ nke silicon metal, vacuum sintering. A na-ekewa usoro ahụ na obere okpomọkụ 0-700, na-echekwa maka awa 3-5; Ọkara okpomọkụ 700-1400, debe maka 4-6 awa; Debe na okpomọkụ dị elu 1400-2200 maka awa 5-7. Debe okpomọkụ dị n'okpuru 150 kwụsịrị ọkụ ma mepee ọkụ ahụ.

5, aja ịgbawa ọgwụgwọ egweri ngwaahịa elu silicon slag, na ájá gbawara egweri.

6, ngwaahịa ọgwụgwọ oxidation n'ime ọkụ oxidation, awa 24 ruo 1350, jụrụ oyi. Wepụ, lelee ma tinye n'ime nchekwa.

Ngwa ngwa na oke nke usoro nke mmepụta ihe nakweere bụ ndị ọkà mmụta sayensị na ndị ezi uche dị na ya, nke mere na oghere ahụ nwere ihe efu zuru oke na oghere ahụ nwere njupụta dị mma; Ọnụego ikpo ọkụ na-ekpo ọkụ ka mma, okpomọkụ na oge njide na-eme ka ike na-ehulata dị elu nke ngwaahịa ahụ. Isi arụmọrụ na ịdị mma nke usoro a eruola ọkwa dị elu nke mba ụwa. Isi ihe na-egosi ya bụ ndị a

Mmeghachi omume sintering silicon carbide kpọmkwem mmejuputa iwu

Usoro 1 maka imepụta ngwugwu silicon carbide mmeghachi omume:

1, na akụrụngwa na-nrapado arọ nke 0,3 akụkụ, tinye a ụfọdụ ego nke mmiri evenly nwuo, arọ nke 6.8 akụkụ nke silicon carbide ntụ ntụ (ururiri size nke 90-30m nke 3.8 akụkụ, 30-0.8m nke 3 akụkụ) , carbon ojii 1 akụkụ, nwa

2. Mgbe ị na-awụsa, buru ụzọ hichaa ihe eji eme ihe, dozie ebu ahụ, dozie ya na fasteners, dọpụta slurry si na tank ahụ na nrụgide, jupụta tank ahụ na 0.1Mpa nrụgide nitrogen, mee nrụgide nrụgide, na ịkwanye slurry n'ime ebu. . Mgbe ị ruru 1 awa, a na-ahapụ slurry ahụ, mgbe awa 6 gachara, a na-ewepụ ihe ọkpụkpụ ahụ, a na-ewepụ ihe ndị na-adịghị ahụ anya, na ụlọ ihicha akpọnwụ. 30-70, 18-20 awa iwepu. 3. Mgbe ị na-arụzi oghere, buru ụzọ lelee ma oghere ahụ na-emezu ihe achọrọ. Mgbe ị na-emezu ihe ndị a chọrọ, rụzie oghere dịka eserese ahụ si dị. Mgbe nyochachara, ziga n'ime ụlọ ikpo ọkụ dị elu.

4. Mgbe mmiri nke mmeghachi omume sintering billet ruru 1%, wepụ ya, hichaa billet na ikuku ikuku ma tụọ ya. Tinye 2.9 akụkụ silicon metal. Enwere ike ịgbanye nitrogen n'ime oghere oghere. Sintering usoro na 700 obere okpomọkụ maka 4 awa; Ọkara okpomọkụ 1400, 5 awa; Okpomọkụ dị elu 2200,6 awa. Mgbe okpomọkụ na-adaba awa 12 wee ruo 150, kwụsị ọrụ n'ime ọkụ ma mepee ọkụ.

5. Mgbe ngwaahịa ọgwụgwọ sandblasting ga-apụta, ọkọlọtọ silicon Chartered n'elu ya bụ ala ma gwerie ya na ájá.

6. Ebumnuche nke ngwaahịa ọgwụgwọ oxidation bụ iji wepụ oxides ndị a na-emepụta n'oge usoro nhazi. A na-ekpocha ngwaahịa ahụ ruo 1350 maka awa 24 n'ime ọkụ oxidation wee mee ka ọ dị mma. Mgbe ewepụchara, a na-etinye ya na nchekwa site na nyocha.

Akụrụngwa na oke nke usoro nke mmepụta ihe nakweere bụ ndị ọkà mmụta sayensị na ndị ezi uche dị na ya, nke mere na oghere ahụ nwere ihe efu zuru oke na oghere nwere njupụta ka mma; Ọnụego ikpo ọkụ na-ekpo ọkụ ka mma, okpomọkụ na oge njide na-eme ka ike na-ehulata dị elu nke ngwaahịa ahụ. Isi arụmọrụ na ịdị mma nke ngwaahịa a na-emepụta site na usoro a eruola ọkwa dị elu nke mba ụwa.

Ihe dị n'elu bụ usoro mmepụta nke reactive sintering silicon carbide, ọ bụrụ na ịchọrọ ozi ndị ọzọ, biko nweere onwe gị ịkpọtụrụ anyị!