Indima ebalulekile yempuphu ye-silicon carbide eluhlaza ezintweni eziphikisayo
I-powder ye-silicon carbide eluhlaza, igama layo lizwakala liqinile. Empeleni uhlobo oluthile lwe-i-silicon carbide (i-SiC), encibilikiswa ngamadigri angaphezu kuka-2000 esithandweni sokumelana nezinto zokusetshenziswa ezifana nesihlabathi se-quartz kanye ne-petroleum coke. Ihlukile kwevamilei-carbon carbide emnyama, inokulawula okunembile kwenqubo esigabeni sokugcina sokuncibilikisa, inokungcola okuncane kakhulu kanye nobumsulwa obuphezulu bekristalu, ngakho-ke iveza umbala oluhlaza okotshani noma oluhlaza okotshani ohlukile. Lokhu "bumsulwa" kuyinika ubulukhuni obucishe bube bukhulu kakhulu (ubulukhuni beMohs bufinyelela ku-9.2-9.3, bulandela idayimane ne-boron carbide kuphela) kanye nokuqhuba ukushisa okuhle kakhulu kanye namandla okushisa aphezulu. Enkundleni yezinto eziphikisayo, "iyithambo eliqinile" elingamelana, lilwe, lifudumale futhi lakheke.
Ngakho-ke, le mpuphu eluhlaza ingabonisa kanjani amandla ayo ezweni elinzima lezinto eziphikisayo futhi ibe "indoda ebalulekile" ebaluleke kakhulu?
Thuthukisa amandla futhi uphonse “amathambo ensimbi” ashisa kakhulu: Izinto ezivuselela umoya ziyesaba kakhulu “ukungakwazi ukumelana” namazinga okushisa aphezulu, zibe mnene futhi zibhidlike.I-micropowder ye-silicon carbide eluhlazainobulukhuni obuphezulu kakhulu kanye namandla amahle kakhulu okushisa okuphezulu. Ukuyifaka ezitsheni ezahlukahlukene zokubumba ezingaphikisi, izinto zokubumba noma izitini kufana nokufaka i-mesh yensimbi enamandla aphezulu kukhonkrithi. Ingakha uhlaka oluqinile olusekelayo kukhonkrithi, imelane kakhulu nokuguquguquka nokuthamba kwezinto ngaphansi komthwalo wokushisa okuphezulu. Izitsha zokubumba zesiteshi sensimbi esishisayo sesitshalo esikhulu sensimbi zazisebenzisa izinto ezijwayelekile ngaphambili, ezaguguleka ngokushesha, izinga lokugeleza kwensimbi alikwazanga ukwanda, futhi ukulungiswa okuvamile kwabambezela ukukhiqizwa. Kamuva, kwenziwa intuthuko yobuchwepheshe, futhi isilinganisoi-micropowder eluhlaza ye-silicon carbide kwanda kakhulu. “He, kuyamangalisa!” Umqondisi we-workshop kamuva wakhumbula, “Lapho kufakwa izinto ezintsha, insimbi encibilikisiwe yadlula, uhlangothi lwesiteshi ngokusobala ‘lwaluqunyiwe’, izinga lokugeleza kwensimbi laphenduka phansi, futhi inani lezikhathi zokulungisa lancishiswa ngaphezu kwesigamu, futhi konke okongiwe kwakuyimali yangempela!” Lokhu kuqina kuyisisekelo sokuphila isikhathi eside kwemishini eshisa kakhulu.
Thuthukisa ukuhanjiswa kokushisa bese ufaka “isinki yokushisa” ezintweni: Uma izinto ezivimbela ukushisa ziningi, kungcono! Ezindaweni ezifana neminyango ye-oven ye-coke kanye nezindonga eziseceleni zeseli le-aluminium electrolytic, izinto ngokwazo zidinga ukuhanjiswa ngokushesha kokushisa kwangaphakathi ukuze kuvinjelwe izinga lokushisa lendawo ukuthi lingabi phezulu kakhulu futhi lonakale. Ukuhanjiswa kokushisa kwe-silicon carbide micropowder eluhlaza ngokuqinisekile “kungumfundi omuhle kakhulu” phakathi kwezinto ezingezona ezensimbi (i-coefficient yokushisa kwegumbi lokushisa ingafinyelela ngaphezu kuka-125 W/m·K, okuphindwe kaningi kunezitini zobumba ezivamile). Ukuyifaka ezintweni ezivimbela ukushisa engxenyeni ethile kufana nokufaka “ipayipi lokushisa” elisebenzayo ezintweni, okungathuthukisa kakhulu ukuhanjiswa kokushisa okuphelele, kusize ukushisa kusheshiswe ngokushesha nangokulinganayo, futhi kugweme ukushisa ngokweqile nokuxebuka kwendawo noma umonakalo obangelwa “yisicanucanu”.
Thuthukisa ukumelana nokushaqeka kokushisa futhi uthuthukise ikhono "lokuhlala uzolile lapho ubhekene noshintsho": Esinye "sezibulala" eziyinkinga kakhulu zezinto eziphikisayo ukupholisa nokushisa okusheshayo. Isithando somlilo siyavulwa futhi sivaliwe, futhi izinga lokushisa liyashintshashintsha kakhulu, futhi izinto ezivamile kulula "ukuqhuma" nokuqhekeka.I-silicon carbide eluhlazaI-micropowder ine-coefficient encane yokwandisa ukushisa kanye nokuqhuba okusheshayo kokushisa, okungalinganisela ngokushesha ukucindezeleka okubangelwa umehluko wokushisa. Ukuyifaka ohlelweni lokuphikisa kungathuthukisa kakhulu ikhono lezinto zokumelana nokushintsha kwezinga lokushisa okungazelelwe, okungukuthi, "ukumelana nokushaqeka kokushisa". I-oven mouth iron castable ye-cement rotary kiln ibhekene nokushaqeka okubandayo nokushisa okukhulu kakhulu, futhi impilo yayo emfushane yayiyinkinga yesikhathi eside. Unjiniyela wokwakha isithando somlilo onolwazi ungitshele ukuthi: "Selokhu kwasetshenziswa ama-castable anamandla aphezulu ane-green silicon carbide micropowder njenge-aggregate eyinhloko kanye ne-powder, umphumela ube ngokushesha. Lapho umoya obandayo uvunguza lapho i-oven imiswa ukuze ilungiswe, ezinye izingxenye ziyaqhuma, kodwa le nto ye-oven mouth iqinile futhi izinzile, futhi kuba nokuqhekeka okuncane kobuso. Ngemva komjikelezo, ukulahlekelwa kuyancipha ngokubonakalayo, kusindisa imizamo eminingi yokulungisa!" Lokhu "kuzola" ukubhekana nokuphakama nokwehla ekukhiqizeni.
Ngobai-micropowder eluhlaza ye-silicon carbide Ihlanganisa amandla aphezulu, ukuguquguquka okuphezulu kokushisa, ukumelana okuhle kakhulu nokushaqeka kokushisa, kanye nokumelana okukhulu kokuguguleka, isibe "umlingani womphefumulo" ekwakhiweni kwezinto zesimanje ezisebenza kahle kakhulu zokuphikisa. Kusukela ezithandweni zokuqhuma, ama-converter, imisele yensimbi, kanye namathangi e-torpedo ku-metallurgy yensimbi nensimbi kuya kumaseli e-electrolytic ku-metallurgy engeyona insimbi; kusukela ezingxenyeni ezibalulekile zama-oven esimende kanye nama-oven engilazi embonini yezinto zokwakha kuya kuma-oven agqwala kakhulu emikhakheni yezimboni zamakhemikhali, amandla kagesi, kanye nokushiswa kwemfucuza, ngisho nokuthulula izinkomishi kanye nezitini zensimbi ezigelezayo zokubumba... Nomaphi lapho kukhona izinga lokushisa eliphezulu, ukuguguleka, ushintsho oluzumayo, kanye nokuguguleka, le micropowder eluhlaza iyasebenza. Ifakwe buthule kuzo zonke izitini eziphikisayo kanye nesikwele ngasinye sezinto eziphoswayo, inikeza isivikelo esiqinile "senhliziyo" yemboni - ama-oven ashisa kakhulu.
Yiqiniso, "ukulinywa" kwe-green silicon carbide micropowder ngokwayo akulula. Kusukela ekukhetheni izinto zokusetshenziswa, ukulawula okunembile inqubo yokuncibilikisa isithando somlilo (ukuqinisekisa ubumsulwa nokuluhlaza), kuya ekuchobozeni, ekugayeni, ekukhipheni ukungcola, ukuhlukaniswa ngokunemba kwe-hydraulic noma komoya, kuya ekupakisheni okuqinile ngokuya ngokusatshalaliswa kosayizi wezinhlayiya (kusukela kuma-micron ambalwa kuya kumakhulu ama-micron), isinyathelo ngasinye sihlobene nokusebenza okuzinzile komkhiqizo wokugcina. Ikakhulukazi, ubumsulwa, ukusatshalaliswa kosayizi wezinhlayiya kanye nesimo sezinhlayiya ze-micropowder kuthinta ngqo ukuhlakazeka kwayo kanye nomphumela ezintweni eziphikisayo. Kungashiwo ukuthi i-green silicon carbide micropowder esezingeni eliphezulu ngokwayo ingumkhiqizo wokuhlanganiswa kobuchwepheshe kanye nobuciko.