Amashubhu Okuvikela I-Silicon Carbide Eboshwe Nge-Nitride: Izicelo Eziyinhloko Zezimboni Ezinokushisa Okuphezulu

Iezindaweni zezimboni ezimbi kakhulu—ezibonakala ngamazinga okushisa aphezulu, izinto ezigqwalisayo, kanye nokuguguleka kwensimbi encibilikisiwe—ukuvikelwa kwemishini okuthembekile kubalulekile ekugcineni ukusebenza kahle kokukhiqiza kanye nekhwalithi yomkhiqizo.Amashubhu okuvikela e-silicon carbide (NBSiC) aboshwe yi-nitride, into ehlanganisiwe esebenza kahle kakhulu eyakhiwe yi-70-80% silicon carbide (SiC) kanye ne-20-30% silicon nitride (Si₃N₄), ivelele ngezakhiwo ezivelele: ukumelana nokushisa okuphezulu okufika ku-1450℃ (1650-1750℃ ezindaweni ezithile), ukumelana nokugqwala/ukuguguleka okuphezulu, ukuzinza okuhle kakhulu kokushaqeka kokushisa, kanye nokuqhuba okuphezulu kokushisa.Ngezansi izinhlelo zabo eziyinhloko, eziqokomisa indlela abaxazulula ngayo izinkinga ezibalulekile kubakhiqizi bomhlaba wonke.

1. Ukuvikelwa kwe-Thermocouple: Ukuqapha Izinga Lokushisa Elinembile Ezimweni Ezinzima

Ukulawulwa kwezinga lokushisa kubalulekile ekhwalithini nasekuphepheni kwezimboni, futhi ama-thermocouple ayithuluzi eliyinhloko lokulinganisa izinga lokushisa. Kodwa-ke, ezithandweni zokushisa okuphezulu, ezincibilikisini zensimbi ezingenayo i-ferrous, kanye nemishini yokwelapha ukushisa, ama-thermocouple angavikelekile onakala kalula yi-oxidation, ukugqwala, noma ukuguguleka kwensimbi encibilikisiwe—okuholela ekufundweni okungalungile, isikhathi sokungasebenzi esingahleliwe, kanye nezindleko eziphezulu zokulungisa.Amashubhu okuvikela e-NBSiC aklanyelwe ukuvikela ama-thermocouple, okwenza abe yisinqumo esiphezulu sezimo zokuqapha izinga lokushisa elibi kakhulu.

I-coefficient yazo yokwandisa ukushisa okuphansi (4.4×10⁻⁶/℃) kanye ne-porosity ephansi (<1%) kuqinisekisa ukuzinza kobukhulu futhi kuvimbela ukugqwala okuvela kumagesi ane-asidi/alkaline kanye nezinsimbi ezincibilikisiwe. Ngobunzima be-Mohs ~9, ziyamelana nokuguguleka okuvela ezintweni ezincane.Izicelo ezibalulekile zifaka phakathi izithando zokwenza insimbi, izithando zokuncibilikisa i-aluminium, kanye nezithando zobumba, lapho amashubhu e-NBSiC andisa khona impilo ye-thermocouple ngokuphindwe kathathu noma ngaphezulu uma kuqhathaniswa nezinye izindlela zendabuko.

2. Ukuncibilikisa Nokuphonsa Insimbi Engenalo I-Ferrous: Ukuvikelwa Kwenqubo Ebalulekile

Izimboni zokuncibilikisa/zokukhipha i-aluminium, ithusi, kanye ne-zinc zibhekene nezinselele ezinkulu: ukuguguleka kwensimbi encibilikisiwe kanye nezingozi zokungcola.Amashubhu okuvikela e-NBSiC asebenza izindima ezimbili ezibalulekile lapha, enikeza izixazululo ezenzelwe wena.

a. Amapayipi Avaliwe Okuvikela Izinto Zokushisa

Ezithandweni zokuncibilikisa i-aluminium, izinto zokushisa ze-silicon carbide zibalulekile kodwa zisengozini yokuguguleka kwe-aluminium encibilikisiwe.Amashubhu e-NBSiC avaliwe asebenza njengesithiyo, ahlukanisa izinto zokushisa ensimbini encibilikisiwe ukuze zandise isikhathi sazo sokuphila futhi agweme ukungcola.Ukushisa kwazo okuphezulu kuqinisekisa ukudluliselwa kokushisa okuphumelelayo, kunciphisa ukusetshenziswa kwamandla. Zingenziwa ngezifiso ngobubanzi (kufika ku-600mm) kanye nobude (kufika ku-3000mm), zivumelana nemiklamo ehlukene yesithando somlilo.

b. Izikhuphuli Zokuphonsa Amasondo E-Aluminium

Ama-risers e-NBSiC avulekile (amashubhu okuphakamisa) enza kube lula ukugeleza kwe-aluminium encibilikisiwe kusuka ezithandweni kuya ezikhunjini zokukhipha ekukhiqizeni amasondo e-aluminium. Nge-modulus ebandayo yokuqhekeka >150MPa kanye nokumelana okuhle kakhulu kokushaqeka kokushisa (kubekezelela imijikelezo eyi-100 yokushisa kwegumbi elingu-1000℃), aqinisekisa ukugeleza okuzinzile nokuqhubekayo—kunciphisa amaphutha okukhipha (ukubhoboka, ukufakwa) kanye nokuthuthukisa isivuno. Ngokungafani namashubhu ensimbi encibilikisiwe, i-NBSiC ayingcolisi i-aluminium encibilikisiwe, igcina ubumsulwa bomkhiqizo.