Sinadarin silicon carbide mai narkewar sinadarai muhimmin abu ne mai zafi sosai, yana da ƙarfi mai yawa, tauri mai yawa, juriya mai yawa, juriya mai yawa ga lalata da juriya ga iskar shaka da sauran kyawawan halaye, ana amfani da shi sosai a cikin injuna, sararin samaniya, masana'antar sinadarai, makamashi da sauran fannoni.
1. Shirye-shiryen kayan da aka sarrafa
Shirye-shiryen sinadarin silicon carbide mai amsawa shine galibin foda na carbon da silicon, wanda za'a iya amfani da carbon iri-iri masu ɗauke da carbon, kamar coke na kwal, graphite, gawayi, da sauransu, yawanci ana zaɓar foda na silicon tare da girman barbashi na foda silicon mai tsarki na 1-5μm. Da farko, ana haɗa foda na carbon da silicon a wani rabo, ana ƙara adadin manne da wakili mai gudana, sannan a juya daidai gwargwado. Sannan ana saka cakuda a cikin injin niƙa ƙwallo don ƙara haɗuwa da niƙa iri ɗaya har sai girman barbashi ya ƙasa da 1μm.
2. Tsarin ƙera
Tsarin ƙera siminti yana ɗaya daga cikin manyan matakai a cikin ƙera silicon carbide. Tsarin ƙera siminti da aka fi amfani da shi shine matse siminti, ƙera siminti da kuma ƙera siminti mai motsi. Tsarin ƙera siminti yana nufin cewa ana saka haɗin a cikin simintin kuma ana samar da shi ta hanyar matsin lamba na inji. Tsarin ƙera siminti yana nufin haɗa haɗin da ruwa ko wani sinadari na halitta, a saka shi cikin sirinji a ƙarƙashin yanayin injin, da kuma samar da samfurin da aka gama bayan tsayawa. Tsarin ƙera siminti mai motsi yana nufin haɗin a cikin simintin, ƙarƙashin kariyar injin ko yanayi don ƙera siminti mai motsi, yawanci a matsin lamba na 20-30MPa.
3. Tsarin yin siminti
Sintering muhimmin mataki ne a cikin tsarin kera sinadarin silicon carbide mai narkewar amsawa. Zafin zafin sintering, lokacin sintering, yanayin sintering da sauran abubuwa zasu shafi aikin sinadarin silicon carbide mai narkewar amsawa. Gabaɗaya, zafin sintering na sinadarin silicon carbide mai narkewar amsawa yana tsakanin 2000-2400℃, lokacin sintering gabaɗaya shine awanni 1-3, kuma yanayin sintering yawanci ba shi da aiki, kamar argon, nitrogen, da sauransu. A lokacin sintering, cakuda zai fuskanci amsawar sinadarai don samar da lu'ulu'u na silicon carbide. A lokaci guda, carbon kuma zai yi aiki tare da iskar gas a cikin yanayi don samar da iskar gas kamar CO2 da CO2, wanda zai shafi yawan da kaddarorin silicon carbide. Saboda haka, kiyaye yanayin sintering mai dacewa da lokacin sintering yana da matukar muhimmanci ga ƙera sinadarin silicon carbide mai narkewar amsawa.
4. Tsarin bayan magani
Carbide mai sintering na silicon yana buƙatar tsarin bayan magani bayan ƙera shi. Tsarin bayan magani na yau da kullun sune injina, niƙa, gogewa, oxidation da sauransu. An tsara waɗannan hanyoyin don inganta daidaito da ingancin saman carbide mai sintering na silicon. Daga cikinsu, tsarin niƙawa da gogewa hanya ce ta sarrafawa gama gari, wacce za ta iya inganta ƙarewa da lanƙwasa na saman silicon carbide. Tsarin oxidation na iya samar da Layer na oxide don haɓaka juriyar oxidation da kwanciyar hankali na sinadarai na silicon carbide mai sintering na reaction.
A takaice dai, kera simintin silicon carbide mai amsawa tsari ne mai sarkakiya, wanda ke buƙatar ƙwarewa a fannoni daban-daban na fasaha da hanyoyin aiki, gami da shirya kayan aiki, tsarin ƙira, tsarin siminti da kuma tsarin bayan magani. Sai ta hanyar ƙwarewa sosai a waɗannan fasahohi da hanyoyin aiki ne kawai za a iya samar da kayan simintin silicon carbide masu inganci don biyan buƙatun fannoni daban-daban na aikace-aikace.
Lokacin Saƙo: Yuli-06-2023