Imishini eshisayo eyinhloko yokukhiqizwa kwengilazi, njengokuminyana kwe-fusing, groove couple, channel feed and annealing density, yenziwa ikakhulukazi ngezinto eziphikisayo.tukusebenza kahle kanye nempilo yesevisi yemishini kanye nekhwalithi yengilazi incike kakhulu ohlotsheni kanye nekhwalithi ye-refractories esetshenzisiwe.tInqubekelaphambili yobuchwepheshe bokukhiqiza incike ekuthuthukisweni kobuchwepheshe bokukhiqiza obungashintshi kanye nekhwalithi ngokwezinga elikhulu. Ngakho-ke, kuyadingeka ukukhetha ngokunengqondo nokwenzait kubaluleke kakhulu ukusebenzisa ama-refractories ekwakhiweni nasekusebenzeni kwansuku zonke kwemishini yengilazi eshisayotokwesibili yizimo zesevisi kanye nendlela yokugqwala yezingxenye ezihlukahlukene zemishini eshisayofIzinto ezisetshenziswayo zibhekisela ezintweni ezingaphili ezingezona ezensimbi noma imikhiqizo enokumelana nomlilo okungengaphansi kuka-1500 ℃ (1580 ℃ eChina nasendaweni yangaphambili yeSoviet Union)it kungaba izinto zokusetshenziswa zemvelo, futhi kungaba imikhiqizo nezinto zokwakha ezenziwe ngabantu, ama-refractories ngaphezu kwezinga elithile lokumelana nomlilo, kodwa futhi kudingeka ube nekhono
Ukusebenza okuyinhloko kwesistimu:
① Ukuze kuhlangatshezwane nezidingo zokusebenza kwezinga lokushisa eliphezulu, akufanele ithambe futhi incibilike ezingeni lokushisa eliphezulu ngokwanele;
② Ingakwazi ukuthwala umthwalo wesithando somlilo nokucindezeleka ngesikhathi sokusebenza, futhi ithwale ingcindezi ethile engalungile ekushiseni okuphezulu.;
Akukho ukulahlekelwa amandla esakhiwo, ukuguquguquka nokwehluleka;
③ Ukuqina kwevolumu yokushisa okuphezulu akukwazi ukukhiqiza ithunzi eliningi noma ukuncipha, amatshe esithandweni somlilo aminyene noma umzimba othelayo ngeke unciphe ngenxa yokwanda kwevolumu.eimifantu noma imifantu ekhona;
④ Ukumelana nokushaqeka okushisayo akunqamuki ngaphansi kokuhlukahluka okuthile kwezinga lokushisa nokushaqeka kokushisa;
⑤ Ukusebenza kwe-anti invasion kungamelana nesenzo sesikhathi eside segesi, uketshezi kanye nendawo egqwalile eqinile ngaphandle kokuguguleka ngokushesha, futhi ingamelana nokugqwala.oukunciphisa i-xidation ekushiseni okuphezuluitingamelana namandla okushisa aphezulu kanye nelangabi eligeleza ngesivinini esikhulu kanye nentuthu, ukuguguleka kwensimbi ewuketshezi kanye ne-slag, kanye nokwehla kwengcindezi.iukugaya okuhlangene kwezinsimbi nezinye izinto;
② Ukuhlolwa okushisayo kokumelana nokushisa kanye nesakhiwo sensalela kubhekisela ekuqhekekeni nokwehla kokuhlolwa komzimba wezitini okubangelwa ukushintsha kwezinga lokushisa. Isakhiwo.
Ukuwa kubhekisela eqinisweni lokuthi ukuncibilika kwezinto eziphikisayo kuzonyonyobela esitini eduze kwezimbotshana zaso kanye namashaneli aqhekekile, bese kuhlangana naso ukuze kwakhiwe isakhiwo esifanayo nesokuqala..
Lapho izinga lokushisa lishintsha ngokuphawulekayo, ungqimba lwe-metamorphic olunesakhiwo esihlukile sezitini kanye nezakhiwo zizoqhekeka futhi ziwe.
Imboni yengilazi ihlukile ngoba ingxenye egugulekile yengilazi eminyene yesibabule izohlala engilazini enguketshezi uma ingancibilika ngokuphelele..
Engilazini, ukwakheka kwengilazi kuthinteka kuphela kancane, okungelona ingozi engilazini eyodwa, kodwa hhayi engilazini ethile ekhethekile..
I-Xu: uma ingenakuqedwa ngokuphelele, kuzokwakhiwa uchungechunge lweziphambeko zengilazi ezifana namatshe, izigaxana namabhamuza, okuzoholela emikhiqizweni yokulahlwa kwemfucuza. Olunye uhlangothi.
Njengamanje, impilo yesevisi yengilazi enkulu yaseShayina entantayo isifinyelele eminyakeni engama-50.
Iminyaka engaphezu kwengu-8, kodwa kusekhona igebe elikhulu uma kuqhathaniswa namazwe anemboni yengilazi ethuthukile. Ngakho-ke, izinga le-refractory liyisihluthulelo sekhwalithi yengilazi.
Izici ezibalulekile zokuthuthukiswa kwezimboni
Izici ze-refractories zesithando somlilo sengilazi
Ama-Refractories yiqembu lezinhlelo eziyinkimbinkimbi ze-multiphase kanye ne-multicomponent, ezakhiwe ngezinhlobonhlobo zamakhemikhali ahlukene kanye namaminerali anezakhiwo ezahlukene.
Ipulasitiki. Izakhiwo zama-refractories zihlobene eduze nokwakheka kwamakhemikhali, ukwakheka kwesigaba, i-bonding morphology kanye nokusabalalisa, kanye nezici zesigaba ngasinye.
ukwakheka kwamakhemikhali
Ukwakheka kwamakhemikhali e-refractories kungenye yezinto eziyisisekelo ezinquma izici ze-refractories.Ukwakheka kwamakhemikhali e-refractories kungahlukaniswa izingxenye ezimbili ngokuya ngokwakheka nokusebenza: ingxenye eyinhloko eyenza inani elikhulu ngokuphelele futhi idlala indima enqumayo. indima ekusebenzeni kwayo, kanye nengxenye encane eyenza inani elincane ibizwa ngokuthi ingxenye yesibili. Ingxenye yesibili ihlanganisa ingxenye yokungcola ehambisana nezinto ezingavuthiwe kanye nesengezo esingezwe ngokukhethekile ukuze kufezwe injongo ethile.
(1) Ingxenye eyinhloko yengxenye eyinhloko ukwakheka kwe-matrix yomlilo wesikhathi kuma-refractory, ngokuvamile okuwuhlobo olulodwa noma ezimbalwa zama-oxide okushisa ancibilika kakhulu noma ama-non-oxides akhiwe ngamaminerali ayinhlanganisela. Ukusebenza kwayo kanye nenani ngokuqondile kunquma izakhiwo zezinto zomlilo zesikhathi. Izinto zomlilo zesikhathi zingahlukaniswa zibe i-asidi, i-alkaline futhi ingathathi hlangothi ngokuya ngezakhiwo zayo zamakhemikhali.
(2) Ingxenye yokungcola isho into ephikisayo elethwa noma ixutshwe enqubweni yokukhiqiza ngenxa yokusetshenziswa kwezimbiwa ezingavuthiwe zemvelo.
Ngokuvamile, i-Ko, i-Nao, i-FeO ne-FeO yizinto zomlilo zesikhathi
Ukungcola okuyingozi emkhiqizweni. Ngaphezu kwalokho, i-asidi oxide (ro2) ne-asidi oxide ezintweni eziyisisekelo ze-pyrotechnic (RO ingxenye eyinhloko) nazo ziyanda.
Ama-oxide ezintweni ze-pyrotechnic athathwa njengezingxenye eziyingozi, ezinokuxazululwa okuqinile ekushiseni okuphezulu. Umphumela awubonakali
Kuphela izinga lokushisa lokubunjwa kwesigaba se-eutectic liquid liyancipha futhi inani lesigaba se-liquid liyakhuphuka, futhi ngokunyuka kwezinga lokushisa, inani lesigaba se-liquid liyehla.
Ijubane elikhulayo liyashesha, okuthinta kakhulu ukusebenza kwezinga lokushisa eliphezulu kwemikhiqizo ephikisayo. Ngakho-ke, kuyadingeka ukulawula ukwakheka kokungcola okuphansi ngangokunokwenzeka
Isibonelo, ingxenye eyinhloko yesitini se-silica yi-SiO, futhi izingxenye eziyingozi zihlanganisa i-Ao, kuya ne-alkali metal oxides. I-American Standard
Kudingeka ukuthi inani eliphelele lokungcola ku-silicon breaker yebanga elikhethekile libe ngaphansi kuka-0.5%, futhi okuqukethwe kwe-Ao ku-British standard silicon breaker ngu-0.3%
Kunezinhlobo ezimbili zemiphumela eguquguqukayo yokungcola kuma-refractories anokuqukethwe kwe-a1o ngaphansi kuka-0.6%
(1)Ngenxa yokusabela kwamakhemikhali, isigaba samanzi esincibilika esiphansi siyakhiwa;(2)Isigaba se-liquid esakhiwe ngezinga lokushisa elifanayo akukhona ukuncibilika okuphansilubuningi be-arge.
(3) Ukuze kuthuthukiswe ukusebenza komzimba, ukusebenza kokukhiqiza nokusebenza kwe-refractory, ukwengezwa kokwakheka kwamakhemikhali ekukhiqizeni noma ekusetshenzisweni kwe-refractory..
Inani elincane lezithasiselo ezingangezwa ukuthuthukisa ukusebenza komkhiqizo libizwa ngokuthi i-additive. Umthamo wezithasiselo uyahluka ngezakhiwo nemisebenzi yazo, futhi ngokuvamile uphansi.
Iyingxenye yezinkulungwane eziyishumi kuya kumaphesenti ambalwa wengqikithi yezinto zokwakha ze-pyrotechnic. Izithasiselo zingahlukaniswa zibe izigaba ezilandelayo ngokwezinjongo nemisebenzi yazo:
(1）Isigaba sokusebenza esibophezelayo sesikhathi somlilo: i-binder, eyaziwa nangokuthi i-ejenti kasimende noma i-ejenti emile;(2）lungisa ukulungiselelwa kanye nesigaba sezinga lokuqina: kufaka phakathi i-ejenti esheshayo, i-ejenti ye-polar nokunye;(3）shintsha izakhiwo ze-rheological: kufaka phakathi isinciphisi samanzi, i-plasticizer, i-gelling agent kanye ne-degumming agent, njll;(4）Lungisa inhlangano yangaphakathi Ikilasi lesakhiwo: kufaka phakathi i-ejenti ekhipha amagwebu, i-defoamer, i-ejenti eshwabene, i-ejenti yokuvuvukala, njll.;(5）ukuthuthukisa isigaba sokuqina: kufaka phakathi i-inhibitor, i-preservative, i-ejenti elwa nokuvuvukala, njll. Ama-Cryoprotectants, njll; Thuthukisa ukusebenza, okuhlanganisa i-sintering aid, mineralizer, fast drying agent, stabilizer, njll. Hydration resistance;Antioxidant, anti reduction agent, njll..
Kunezinhlobo eziningi zezithasiselo, okuyizinto ezibalulekile zocwaningo embonini yezinto zomlilo
Okuncane: 2. Kungashintsha ngokusobala imisebenzi ethile noma izici zemikhiqizo ephikisayo; 3. Ayinayo ithonya elibi kakhulu ezintweni eziyinhloko zemikhiqizo, njengokukhiqizwa kwezitini ze-silica.
Ukwengezwa kobisi lwe-lime nensimbi kuyi-mineralizer ukuze kube lula ukwakheka kwe-quartz; I-Cao engezwe emkhiqizweni iyisinzinzisi ukwenza umkhiqizo uzinze.
Imiphumela ibonisa ukuthi i-cubic ZrO 2 eyakhiwe ekushiseni okuphezulu izinzile ekushiseni okuphansi: i-MgO nezinye izithasiselo ekuhlanzekeni okuphezulu kwe-Al 2O Ceramics ziyizinsiza zokuthungatha.hI-igh density sinter ingatholakala ekushiseni okuphansi.
Isikhathi sokuthumela: May-13-2021