Carbide mai sintering silicon wani sabon nau'in yumbu ne mai fasaha, wanda ke da ƙarfi mai yawa, tauri mai yawa, juriya mai kyau ga lalacewa da juriya ga tsatsa, kuma ana amfani da shi sosai a fannin ƙarfe, sinadarai, lantarki, sararin samaniya da sauran fannoni. Samfurin da ke ɗauke da sinadarin silicon carbide mai abrasive carbon black, graphite da ƙari daban-daban, ta amfani da hanyoyin matsewa busasshe, fitar da iska ko zubar da ruwa don yin ingancin ramuka, sannan a haɗa su don fahimtar hanyar samar da sinadarin silicon carbide mai amsawa!
Silinda mai aiki da sinadarin silicon carbide Wannan ƙirƙira wani tsari ne na fasaha mai inganci bayan dubban gwaje-gwaje da mai ƙirƙira ya yi na tsawon shekaru da yawa don haɓaka dabarar kayan aiki da tsarin samarwa, musamman tsarin silinda mai ci gaba.
A cikin da'awar 1 na ƙirƙira, ɓangaren nauyin foda silicon carbide shine sassa 5-8, baƙar carbon shine sassa 0.5-1.5, graphite shine sassa 1-1.5, kuma mai ɗaure shine sassa 0.1-0.5. Daga cikinsu, girman hatsi na silicon carbide shine sassa sic (90-30m) sassa 3-5, sic) sassa 30-0.8m) sassa 2-3. An saka methyl cellulose da foda PVA na gazelle a cikin adadin ruwa mai dacewa sassa 0.1-0.5 bi da bi, kuma an sami maganin mai haske bayan an dumama.
1. A haɗa dukkan nau'ikan foda, manne da ruwan da aka shirya bisa ga dabarar sannan a gauraya sosai.
2, tsaftace injin tsabtace injin, isa 0.1Mpa, a yi allurar matsi gaurayen ruwan. Bayan wani lokaci, sai a saki ruwan sannan a cire ruwan da aka zubar. A ajiye a zafin 30-70 na tsawon awanni 18-20 don bushewa.
3. A rage billet ɗin bisa ga buƙatun zane.
4, sanya billet ɗin sintering na amsawa a cikin tanderu, ƙara nauyin sassa 1-3 na silicon na ƙarfe, sintering na injin tsotsa. An raba tsarin zuwa ƙananan zafin jiki 0-700, an kiyaye shi na awanni 3-5; matsakaicin zafin jiki 700-1400, a ajiye na awanni 4-6; A ajiye a babban zafin jiki 1400-2200 na awanni 5-7. Sauke zafin da ke ƙasa da 150, a dakatar da tanderu sannan a buɗe tanderu.
5, maganin fashewar yashi, niƙa samfurin saman silicon slag, tare da niƙa fashewar yashi.
6, kayayyakin maganin oxidation a cikin tanderun oxidation, awanni 24 zuwa 1350, sanyaya ta halitta. Cire, duba kuma a ajiye a cikin ajiya.
Kayan aiki da kuma rabon da hanyar ƙirƙira ta ɗauka sun dace da kimiyya kuma sun dace, don haka fankon yana da isasshen gurɓataccen abu kuma fankon yana da mafi yawan yawa; Ingantaccen saurin dumama sintering, zafin jiki da lokacin riƙewa suna tabbatar da ƙarfin lanƙwasa na samfurin. Babban aiki da ingancin wannan hanyar sun kai matakin ci gaba na duniya. Manyan alamunta sune kamar haka:
Aiwatarwa ta musamman ta hanyar haɗa silin silicon carbide
Tsarin 1 Hanya don ƙera fakitin silicon carbide mai narkewar amsawa:
1, kayan da aka yi amfani da su don ɗaukar nauyin manne na sassa 0.3, ƙara wani adadin ruwa daidai gwargwado, nauyin sassa 6.8 na foda silicon carbide (girman barbashi na mita 90-30 na sassa 3.8, mita 30-0.8 na sassa 3), baƙin carbon kashi 1, baƙi
2. Lokacin zubawa, da farko a tsaftace mold ɗin da aka yi amfani da shi, a daidaita mold ɗin, a gyara shi da maƙallan ɗaurewa, a zana slurry daga cikin tankin da matsi, a cika tankin da nitrogen mai matsin lamba 0.1Mpa, a yi zubar da matsi, sannan a tura slurry ɗin cikin mold ɗin. Bayan ya kai awa 1, slurry ɗin zai fito, kuma bayan awanni 6, a cire mold ɗin, a cire kayan da babu komai, sannan a busar da ɗakin bushewa. Awa 30-70, 18-20 don cirewa. 3. Lokacin gyara mold ɗin, da farko a duba ko fanfon ya cika buƙatun ƙira. Lokacin da aka cika buƙatun, a gyara fanfon bisa ga zane. Bayan dubawa, a aika zuwa ɗakin bushewa mai zafi.
4. Bayan danshi na sintering na amsawa ya kai kashi 1%, cire shi, tsaftace billet ɗin da iska mai hura iska sannan a auna shi. Ƙara sassan silicon metal 2.9. Ana iya tura nitrogen zuwa cikin sintering na injin. Tsarin sintering a ƙaramin zafin jiki na 700 na tsawon awanni 4; matsakaicin zafin jiki 1400, awanni 5; Babban zafin jiki awanni 2200, awanni 6. Idan zafin ya faɗi awanni 12 ya kai digiri 150, a dakatar da aiki a cikin tanderun sannan a buɗe tanderun.
5. Bayan samfurin gyaran yashi ya fito, ana niƙa ma'aunin silicon Chartered a saman sa sannan a niƙa shi da yashi.
6. Manufar kayayyakin maganin oxidation shine a cire oxides da aka samar yayin aikin sintering. Ana dumama samfurin zuwa 1350 na tsawon awanni 24 a cikin tanderun oxidation sannan a sanyaya shi ta halitta. Bayan an cire shi, ana sanya shi a ajiya ta hanyar dubawa.
Kayan aiki da kuma girman da hanyar ƙirƙira ta ɗauka sun dace da kimiyya kuma sun dace, don haka wurin da aka yi amfani da shi yana da isasshen sarari kuma wurin da aka yi amfani da shi yana da mafi kyawun yawa; Ingantaccen saurin dumama sintering, zafin jiki da lokacin riƙewa suna tabbatar da ƙarfin lanƙwasa na samfurin. Babban aiki da ingancin samfuran da wannan hanyar ta samar sun kai matakin ci gaba na duniya.
Wannan hanyar da ke sama ita ce samar da sintering silicon carbide mai amsawa, idan kuna buƙatar ƙarin bayani, da fatan za ku iya tuntuɓar mu!
Lokacin Saƙo: Yuni-13-2023