Ityhubhu yoKhuseleko lweSilicon Carbide
Sinikezela ngeenkonzo ezisebenza kakuhleIityhubhu zokukhusela zeSilicon Carbide (SiC)Yenzelwe ukusebenza ngokuthembekileyo kwiindawo zoshishino ezishushu kakhulu, kubandakanya amaqondo obushushu aphezulu kakhulu, ukubola okukhulu kweekhemikhali, ukuguguleka koomatshini kunye noxinzelelo lobushushu oluqhelekileyo. Zisetyenziswa kakhulu kwi-metallurgy, unyango lobushushu, ukutshiswa kwe-ceramic, ubunjineli beekhemikhali kunye namashishini e-furnace ashushu kakhulu, iityhubhu zethu ze-SiC zisebenza njengemikhono yokukhusela enzima kwii-thermocouples, ii-nozzles zokutshisa, izinto zokudlulisa ubushushu kunye nee-linings ze-furnace, zandisa ubomi benkonzo yezixhobo kwaye zinciphisa iindleko zokulungisa zesiqhelo.
Sinikezela ngamanqaku amathathu aphambili eprimiyamu ukuze ahambelane neemfuno ezahlukeneyo zesicelo:I-Reaction-Bonded SiC (RBSiC), i-Recrystallized SiC (RSiC) kunye ne-Silicon Nitride-Bonded SiC (NBSiC).Uhlobo ngalunye luneengenelo ezikhethekileyo zokusebenza, kwaye sinikezela ngeenkonzo ezipheleleyo zokuvelisa ngokwezifiso ukuhlangabezana nobungakanani bakho, ulwakhiwo kunye neemfuno zemeko yokusebenza.
1. Inkonzo yoKwenziwa ngokwezifiso | I-OEM kunye ne-ODM ziyafumaneka
Siyaqonda ngokupheleleyo ukuba abathengi bemizi-mveliso banemfuno ezizodwa zobukhulu, ulwakhiwo, ukufakelwa kunye nokusebenza. Sinikezela ngezisombululo ezipheleleyo ezenziwe ngokwezifiso zeetyhubhu zokukhusela zeSiC, ezigubungela uyilo lwemveliso, uphuhliso lweeprototype, ukuveliswa ngobuninzi kunye nokuhlolwa komgangatho okungqongqo. Iqela lethu lobuchwephesha liza kucebisa umgangatho weSiC ofanelekileyo ngokusekwe kubushushu bokusebenza kwakho, uhlobo oluphakathi, uxinzelelo kunye nendawo yokufakela ukuqinisekisa ukusebenza kakuhle kunye nokusebenza kakuhle kweendleko kwiprojekthi yakho.
2. Uluhlu lokwenza ngokwezifiso
(1) Ukwenziwa ngokwezifiso kobukhulu:Ububanzi obungaphandle buqala kwi-Φ12mm ukuya kwi-Φ300mm, ubude obunye ukuya kwi-3000mm, ubukhulu bodonga bunokulungiselelwa ukusuka kwi-3mm ukuya kwi-30mm, kunye nokunyamezela okungqongqo (± 0.5mm ukuya kwi-± 1.0mm) ngokusekelwe kwiinkcukacha zemveliso kunye neemfuno zenkqubo ukuqinisekisa ukulingana ngokugqibeleleyo nezixhobo zabathengi.
(2) Ulwakhiwo kunye nokuphelisa ukwenza ngokwezifiso:Xhasa isiphelo esivaliweyo, isiphelo esivulekileyo, isiphelo esirhangqiweyo (iiflanges ezisemgangathweni nezingezizo ezisemgangathweni), uqhagamshelo lwangaphakathi nolwangaphandle olunemisonto, imingxunya yendandatho yokutywina, imingxunya yokubeka, kunye nezinye izinto zoyilo. Sikwabonelela ngeemveliso ezenziwe ngokwezifiso, kubandakanya iityhubhu ezigobileyo ezingama-45°/90°, iityhubhu zokunciphisa, ii-tee, kunye nezakhiwo ezigobileyo zokufakelwa okuthile kunye neemfuno zesicelo.
(3) Ukwenziwa ngokwezifiso koMsebenzi:Lungisa ukuvuleka kwezinto, ukuhanjiswa kobushushu, amandla oxinzelelo, kunye neeparamitha zokumelana nokugqwala ngokweemeko zokusebenza ezikhethekileyo, lungisa ukwakheka kwezinto ukuze kuhambelane neendawo ezingaqhelekanga ezinzima, kwaye uphucule ubomi benkonzo ejoliswe kuyo kunye nozinzo lokusebenza.
(4) Ukwenziwa ngokwezifiso kwenkqubo:Ukutshintsha okuguquguqukayo phakathi kweenkqubo ze-RBSiC, RSiC, kunye ne-NBSiC ngokusekelwe kwiimeko zesicelo sabathengi; kwiindawo ezintsonkothileyo zesakhiwo, sibeka phambili inkqubo yokusabela okufana ne-net ukuze sinciphise iindleko zokucubungula kunye nokuqinisekisa ukuthembeka kwesakhiwo.
Iityhubhu zokukhusela zeSilicon Nitride-Bonded SiC (NBSiC)
Iityhubhu ze-NBSiC zenziwe nge-SiC ecocekileyo kakhulu kunye nomgubo we-silicon, owenziwe yi-extrusion okanye i-grouting, emva koko zifakwe i-nitride kwi-1350-1500°C kwi-nitrogen atmosphere. Iikristale ze-silicon nitride ze-acicular zibopha amasuntswana e-SiC ngokuqinileyo, zenze i-composite eqinileyo enokumelana nokugqwala kwesinyithi esinyibilikisiweyo kunye nokusebenza okunganamatheliyo, ifanelekile kwiimeko zokunyibilikisa isinyithi esingena-ferrous.
1. Ukusebenza okuPhambili kunye neempawu
(1) Ubushushu obuphezulu bokusebenza bufikelela kwi-1500°C, kunye nokusebenza okuzinzileyo kwiindawo ezinyibilikisiweyo zesinyithi kunye neendawo ezitshisayo ezinobushushu obuphezulu
(2) Ukumelana okugqwesileyo ne-aluminium enyibilikisiweyo, i-zinc, i-copper, kunye nokunye ukubola kwesinyithi okungeyo-ferrous, ngaphandle kokunamathela kwisinyithi esinyibilikisiweyo kwaye akukho ungcoliseko lolwelo lwesinyithi
(3) Ukuqhuba okuphezulu kobushushu, okuvumela ukuva ubushushu ngokukhawuleza kunye nokudluliselwa kobushushu okusebenzayo ukuze kujongwe ubushushu ngokuchanekileyo
(4) Amandla oomatshini alungileyo kunye nokumelana nokutshayiswa kobushushu, kufanelekile kwinkonzo yexesha elide kwiimeko zokunyibilikisa kunye nokulahla isinyithi
(5) Ubunzima obuphantsi kunye nesakhiwo esixineneyo, nto leyo ekhupha ngempumelelo isinyithi esinyibilikisiweyo, i-slag, kunye neegesi ezirhabaxa ukukhusela izinto zangaphakathi
2. Izicelo ezicetyiswayo
Iityhubhu zokukhusela ze-NBSiC zenzelwe ngokukodwa amashishini e-metallurgical foundry, ezisetyenziselwa ikakhulu iityhubhu zokulinganisa ubushushu besinyithi esinyibilikisiweyo, iityhubhu zokuphakamisa, imikhono yokukhusela i-thermocouple yesithando sokunyibilikisa i-aluminium/copper/zinc, izixhobo zokukhusela ichibi elinyibilikisiweyo, kunye nezixhobo zokuphosa eziqhubekayo. Zisisombululo esiphambili sokumelana nokugqwala kwesinyithi esinyibilikisiweyo kunye neemfuno zokusebenza ezinganamatheli.
Iityhubhu zoKhuselo ze-Reaction-Bonded SiC (RBSiC)
Iityhubhu ze-RBSiC zenziwe ngetekhnoloji yokungena kunye nokulungisa i-reaction sintering, kusetyenziswa umgubo we-SiC ococekileyo kakhulu kunye nezinto eziluhlaza ze-carbon. I-silicon enyibilikisiweyo ingena emzimbeni oluhlaza ize iphendule ngaphakathi ukuze yenze isakhiwo esixineneyo esidibeneyo, esinomxholo we-silicon okhululekileyo we-8-15%. Le nkqubo ivumela ukwakheka kwemilo ekufutshane ne-net enokuncipha okungaphantsi kwe-1%, inika ukusebenza kakuhle kweendleko eziphezulu kwaye ifanelekile kwimveliso enkulu yemizi-mveliso.
1. Ukusebenza okuPhambili kunye neempawu
(1) Ubushushu obuphezulu bokusebenza bufikelela kwi-1400°C, kunye nokusebenza okuzinzileyo kwenkonzo yexesha elide kumaqondo obushushu aphezulu aqhubekayo
(2) Uxinano oluphezulu, amandla agqwesileyo oomatshini, kunye nokumelana okuhle nempembelelo yoomatshini kunye nokuguguleka okuncinci
(3) Ukusebenza kakuhle kweendleko xa kuthelekiswa nezinye iindlela zeSiC, ezifanelekileyo kwizicelo ezinkulu zoshishino
(4) Ukwakheka okugqwesileyo, okuvumela ukuveliswa kwezinto ezimile okwesixa esintsonkothileyo ngaphandle kokucubungula okubanzi kwesibini
(5) Ukumelana okuhle nokugqwala kweekhemikhali eziqhelekileyo, kuquka imozulu ye-asidi kunye ne-alkaline kwimizi-mveliso
2. Izicelo ezicetyiswayo
Iityhubhu zokukhusela ze-RBSiC zisetyenziswa kakhulu kwiityhubhu zemitha ye-furnace ye-metallurgical, ii-sleeves zokukhusela ze-thermocouple eziqhelekileyo, ii-nozzles ze-desulfurization, ii-heat exchangers, kunye nezixhobo ze-furnace ezisebenzisa ubushushu obuphezulu. Ziyindlela efanelekileyo yokusetyenziswa efuna ukusebenza ngokulinganayo kunye nolawulo lweendleko, ngaphandle kwemfuneko yokumelana nobushushu obuphezulu kakhulu ngaphezu kwe-1400°C.
Iityhubhu zokukhusela zeSiC (RSiC) eziphinde zasetyenziswa
Iityhubhu ze-RSiC zitshizwa kubushushu obuphezulu kakhulu (2100-2450°C) ngaphandle kwesigaba sesibini sokubopha, esenziwe ngokuphuma ngqo komphunga kunye nokuxinana kwamasuntswana e-α-SiC acocekileyo kakhulu. Olu lwakhiwo lwekristale olucocekileyo luqinisekisa ukuba akukho kungcola, nto leyo eyenza ukuba lube lolona khetho luphezulu kwiindawo zokusebenza ezinobushushu obuphezulu kakhulu kunye nobunyulu obuphezulu.
1. Ukusebenza okuPhambili kunye neempawu
(1) Ukumelana nobushushu obuphezulu kakhulu, kunye nobushushu obuphezulu obuqhubekayo bokusebenza obufikelela kwi-1800°C, obufanelekileyo kwiimeko zokusebenza zobushushu obuphezulu kakhulu
(2) I-100% ye-SiC crystalline phase ecocekileyo, akukho kungcola, ifanelekile kunyango lobushushu obucocekileyo kakhulu kunye nee-oven ezilawulwa ngumoya.
(3) Ukumelana okungaqhelekanga kobushushu, okukwaziyo ukumelana notshintsho olukhawulezileyo lobushushu ngaphandle kokuqhekeka okanye ukonakala
(4) Ukuqhuba okuphezulu kobushushu kunye nokuzinza okugqwesileyo kobushushu obuphezulu, okugcina ukuthembeka kwesakhiwo phantsi kokuvezwa kobushushu obuphezulu kakhulu ixesha elide
(5) Ukumelana okunamandla nokukhukuliseka kwegesi kunye nokuguguleka okurhabaxa, kufanelekile kwiindawo ezishushu zesithando ezinezinga eliphezulu lokuhamba kwamanzi kunye nefuthe lamasuntswana
2. Izicelo ezicetyiswayo
Iityhubhu zokukhusela ze-RSiC zisetyenziswa kakhulu kwii-oven ezishushu kakhulu, kwii-atmosphere, kwii-oven zonyango lobushushu kwimizi-mveliso, kwii-nozzles zokutshisa ezishushu kakhulu, kwizixhobo zokudubula ze-ceramic ezicocekileyo kakhulu, nakwizinto ezikhethekileyo zokusabela ezishushu kakhulu. Azinakutshintshwa kwiimeko ezifuna ukumelana nobushushu obuphezulu kakhulu, ubumsulwa obuphezulu, kunye nokuzinza kobushushu obuphezulu.
| Uphawu | I-Si₃N₄-SiC | R-SiC | RB-SiC |
| Ubushushu bokusebenza bexesha elide | 1350℃ | 1600℃ | 1200℃ |
| Ukumelana noTshabalalo oluTshisayo | Eyona ifanelekileyo | Kulungile | Phakathi |
| Iipropati ze-Antioxidant | Kulungile | Eyona ifanelekileyo | Phakathi |
| Ukumelana nokugqwala | Iqinile (imelana nee-asidi kunye ne-alkalis / isinyithi esinyibilikisiweyo) | Iqinile (imelana ne-oxidation kunye nokugqwala) | Phakathi (Ziphephe ii-alkalis ezinamandla/i-aluminium enyibilikisiweyo) |
| Ukugquma | 3%–5% | 5%–8% | ＜1% |
| Ukumelana neempembelelo | Unamandla | Ubuthathaka | Phakathi |
| Ityhubhu yoKhuseleko lwe-NSiSC | |
| Isalathiso | Idatha |
| Ubuninzi bobuninzi (g/cm3) | 2.75-2.82 |
| Ukuxinana (%) | 10-12 |
| Amandla oxinzelelo (MPa) | 600-700 |
| Amandla okugoba (MPa) | 160-180 |
| IModulus kaYoung (GPa) | 220-260 |
| Ukuqhuba kwe-Thermal (W/MK) | 15(1200℃) |
| Ukwandiswa kobushushu (20-1000℃) 10-6k-1 | 5.0 |
| Ubushushu obuphezulu bokusebenza(℃) | 1500 |
| I-Si3N4(%) | 20-40 |
| I-A-SIC(%) | 60-80 |
Imibuzo ebuzwa qho
Ngaba ufuna uncedo? Qiniseka ukuba undwendwela iiforam zethu zenkxaso ukuze ufumane iimpendulo kwimibuzo yakho!
Singumvelisi wokwenyani, umzi-mveliso wethu ugxile ekuveliseni izinto ezichasene nendalo kangangeminyaka engaphezu kwama-30. Sithembisa ukubonelela ngexabiso elifanelekileyo, eyona nkonzo ingcono ngaphambi kokuthengisa nasemva kokuthengisa.
Kwinkqubo nganye yemveliso, i-RBT inenkqubo epheleleyo ye-QC yokwakheka kweekhemikhali kunye neempawu zomzimba. Kwaye siza kuvavanya iimpahla, kwaye isiqinisekiso somgangatho siya kuthunyelwa kunye neempahla. Ukuba uneemfuno ezizodwa, siza kuzama konke okusemandleni ethu ukuzilungiselela.
Ngokuxhomekeke kubungakanani, ixesha lethu lokuhambisa lahlukile. Kodwa sithembisa ukuthumela ngokukhawuleza kangangoko kunokwenzeka ngomgangatho oqinisekisiweyo.
Kakade ke, sinikezela ngeesampuli zasimahla.
Ewe, ewe, wamkelekile ukutyelela inkampani ye-RBT kunye neemveliso zethu.
Akukho mda, singakunika ingcebiso nesisombululo esifanelekileyo ngokwemeko yakho.
Besisenza izinto ezirhabaxa kangangeminyaka engaphezu kwama-30, sinenkxaso yobugcisa enamandla kunye namava amaninzi, singanceda abathengi ukuba bayile ii-kiln ezahlukeneyo kwaye banikezele ngenkonzo enye.
