Niobium Carbide foda, NbC

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Niobium Carbide foda, NbC

Multi-phase yumbu suna daya daga cikin albarkatun kasa na multi-phase yumbu kayan. Abubuwan da aka samar da yumbu da yawa da ake samarwa galibi suna cikin ƙarfi, ma'anar narkewar narkewa, ingantaccen haɓakar sinadarai da haɓaka. Ana amfani da shi a ɓangarorin da ba sa jurewa, kayan aikin yankan da wayoyi


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Niobium carbide
Kayan aikin sinadarai: Nbcnt: 3500. C
Matsayin tafasa: 4300. C
Yawa: 7. 6g / ml a 25 "C (shi)
Form: ferrous karfe fodaAikace-aikace a cikin kayan haɗe-haɗe (1) yumbu mai tsaka-tsakin yanayi ɗayan ɗayan kayan kayan kayan yumbu ne masu fasali da yawa. Abubuwan da aka kera su da yawa wadanda suke samarwa sau da yawa ana magana ne akan yanayi mai kyau, kwanciyar hankali mai kyau da kuma sarrafawa Ana amfani dashi a bangarorin da zasu iya jurewa, yankan katako da wayoyi (2) Ba za a iya amfani da carbide na siminti kawai a matsayin mai hana ci gaban hatsi mai ciminti ba, amma kuma zai iya samar da kashi na uku. tare da WC da Co tare da wasu carbides, wanda ke inganta ƙarancin zafi da ƙarfin juriya na tasirin cimentedcarbide, zafi da ƙarfin juriya. Tunda niobium carbide yana da fa'idodi na inganta ƙarancin gami da haɓaka ƙarancin gami, ana iya amfani dashi don shirya kayan aikin carbide na siminti tare da kyakkyawan aikin yanka. 3) Lokacin wahalar niobium carbidehard na lantarki mai saurin hawa saman ruwa ya shiga tsarin dalla-dalla, don haka walda mai walda yana da kwarangwal mafi jurewa, kuma an inganta juriya da tufafi sosai. Girman rigar juriya ta wannan wutan lantarki ya ninka sau 1.2-1.8 sama da wanda ya bugu da karfe 45 (HRC50) kuma ya ninka sau 2.43.6 wanda ya fi na Fe-cr-cb rigar kariya mai sanyawa. A lokaci guda, layin da ke sawa mai ɗorewa baya buƙatar preheating lokacin waldi .kuma yana iya yin sama a saman aikin. Craananan fashewar abubuwa akan farfajiya na iya sakin damuwar shimfidar saman ruwa kuma ba zai yaɗu cikin kayan tushe ba. d Zamanin kara karfin karfe Adding asmall adadin niobium carbide a cikin aikin karafan karfe na iya cimma tasirin karfin hazo da karfafa kristal mai kyau, wanda hakan ke inganta kayan aikin karfe gaba daya. (4) Ana amfani da masu amfani da sararin samaniya azaman kayan littafin kimiyyar don shirya manyaerospace equipme

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Niobium carbide
CAS (12069-94-2
EINECS. 235-117-8
dukiya-sinadarai
Niobium carbide kore ne mai siffar sukari da lu'ulu'u kuma yana cikin sodium chloride cubic crystal system.
Arfin dangi 8.47, daidaitaccen motsi A = 0.447nm,
Matsar narkewa ita ce 3500 ℃. Microhardness> 23.5 Gpa (> 2400 kg / mm2), ya fi ƙarfin corundum. 338000 N / ya kasance na roba mai canzawa, haɓakar haɓakar thermal na 6.65 * 10 ^ (6) / K, haɓakar haɓakar 14 w / (m K), samar da zafi - 140.7 kJ / mol, ƙayyadadden ƙarfin zafin jiki na 36.8 J / (mol · K), juriya na 35 mu Ω · cm.
Rashin narkewa cikin ruwan zafi da sanyi hydrochloric acid, sulfuric acid, nitric acid, mai narkewa cikin ruwan zafi hydrofluoric da ruwan magani na nitric acid. Barga a 1000 ~ 1100 ℃ kuma an sanya masa oxidized cikin sauri zuwa pentoxide niobium sama da 1100 ℃. Niobium carbide yana da sauƙin haɗuwa cikin carbide na titanium, zirconium carbide, tungsten carbide da sauran mahaukaci, kuma tare don samar da wata cakuda mai kama da kama. Matsar narkewa: 3500 ℃, yawa: 7.6g / cm (25 ℃) amfani
Kamar yadda wani ƙari na carbide wuya gami, shi ne wani bangaren na ternary da quaternary carbide m bayani, kamar WC-NBC-C ternary tsarin. Hakanan zai iya yin lu'ulu'u mai wucin gadi na purple.
Polycarbides bisa ga shi, kamar su NBC-WC-C ternary tsarin, ana iya amfani da su azaman bututun kayan rufi don aikace-aikacen sararin samaniya
Niobium carbide (NbC) shine koriya mai siffar sikari mai ƙyalli tare da luster na ƙarfe kuma yana cikin tsarin sodium chloride cubic crystal system. Yana da nau'i mai mahimmanci na narkewa, babban abu mai taurin, ana amfani dashi ko'ina cikin ƙarancin zafin jiki mai ƙyama da ƙari mai ƙarfi.
Kamar yadda ake karawa a carbide, shine bangaren ingantaccen magani na kasa da kasa, kamar WC-NBC-C ternary system. Hakanan zai iya yin lu'ulu'u mai wucin gadi na purple.
Niobium carbide yana da kyakkyawan haɓakar sinadarai da aikin zazzabi mai ƙarfi. Rashin narkewa cikin ruwan zafi da sanyi hydrochloric acid, sulfuric acid, nitric acid, mai narkewa cikin ruwan zafi hydrofluoric da ruwan magani na nitric acid; An haxa cakuda cikin sinadarin titanium, zirconium carbide, tungsten carbide da sauran mahaukatan, kuma an samar da hadin tare. Barga a 1000-1100 ℃ kuma cikin sauri oxidized zuwa niobium pentoxide sama da 1100 ℃. Gabaɗaya, ana cushe shi a cikin kwalabe na roba ko jakunkunan bangon aluminium a cikin katan ɗin.

(2) Amfani da samfura: Aikace-aikace a cikin kayan haɗe-haɗe: - duplex yumbu: a matsayin ɗayan albarkatun ƙasa na kayan duplex yumbu, wanda aka yi da niobium carbide duplex yumbu kayan aiki tare da tsananin tauri, maɓallin narkewa mai kyau, kwanciyar hankali mai kyau na sinadarai da haɓakar lantarki, shi ne sau da yawa wanda aka yi amfani dashi a sassan da ke jurewa, kayan aikin yanke carbide da yankunan lantarki: ba kawai za'a iya amfani dashi azaman mai hana ci gaban hatsi ba, amma kuma tare da wasu carbides da aka kafa a wajen WC da Co dispersoid na uku, yana inganta haɓakar carbide mai tsananin zafi da zafi girgizar ƙarfin damuwa ga ƙarfin ƙarfin haɓakar shaƙuwaNiobium carbide tare da haɓaka taurin alloy da haɓaka ƙarancin ƙarfe na gami, da dai sauransu, don haka ana iya amfani dashi don shirye-shiryen yankan kayan aikin kayan kwalliyar carbide na ciminti da niobium carbide ana iya sanya su cikin lu'u-lu'u mai wucin gadi mai haske - lantarki mai haske, daskararren niobium carbide mai tsananin wahalar shiga cikin ƙungiyar hadaddiyar matsala, sanya walda g Layer yana da kwarangwal mai ɗorewa mai kyau, ɗaukar kaya yana inganta ƙarancin waldi na lantarki mai ɗorewa mai ɗorewa, juriyarsa ta lalacewa fiye da ta ƙwanƙwasa 45 # karfe (HRC50) 1.2 1.8 sau sama sama, fiye da na Fe - Cr - C - B yana gudana -in ya wuce 2.4 zuwa 3.6 sau juriyaWelds a lokaci guda, sakawa mai ɗorewa walda walda ba tare da preheating ba, ana samun shi a cikin walda na farfajiyar farfajiyar, ƙananan ƙananan raƙuman ruwa na iya sakin damuwa na walda mai walƙiya kuma ba yaɗawa a cikin ƙarfe na ƙarfe da ƙarfe yayin aiwatar da karafan karfe niobium carbide, na iya cimma tasirin karfi da hazo da karfafa hatsi mai kyau, don inganta ingantattun kayan aikin injina na karfe, sassan sararin samaniya: ana amfani da shi ne don injin turbine rotor ruwa injin bututun ƙarfe na jirgin ruwa da kuma tsarin nukiliya da kuma da yawa sauran kayan sufurin jiragen sama kayan gyaran kayan shiri na kayan aiki a cikin kayan kayan kwalliya: - murfin murfin karfe: niobi um carbide kamar karfe carbides, yana da tsananin tsananin zafi da kuma juriya na abrasion don haka ana amfani dashi a cikin nunin karfe wanda zai iya inganta juriya ta fuskar lalacewar - ƙarfe aikin yanki-ƙarfe: a cikin ƙarfe ƙarfe wanda ya haɗu da niobium carbide farfajiya na kayan aiki, sanya shi Taurin fuska yana daɗa ƙaruwa ƙwarai, zai iya cimma HV2800 a sama, a lokaci guda, haɓaka yanayin zafin jiki na kayan aiki da ƙungiya, don tsawaita rayuwarta ta hanyar sarrafa sinadaran ruwa lokaci na lokaci na iya fahimtar niobium carbide shafi a farfajiyar jefa baƙin ƙarfe fistan zoben, shafi da kayan tushe a haɗe da masu ƙarfi; Wannan zoben fistan ɗin yana da kyakkyawan tsarin aljihun ajiya, da fa'idodi na duka tsananin taurin, ana iya rage su sosai ba tare da matsakaiciyar man shafawa ba da daidaitaccen haɓakar zafin lokacin da dizal man shafawa na injin, yana inganta haɓakar lalacewa, na iya rage ɓarkewar ɓarnar injin dizal a lokaci guda, inganta aikin injinin dizal - sauran rufin niobium carbide: kumbon sama jannati na kayan zafin jiki masu amfani da niobium carbide shafi, na iya inganta rayuwarsa ta inganta sosai a cikin masana'antar lantarki, kayan kwalliyar lantarki ta hanyar amfani da cobalt na ultrafine wanda ke dauke da niobium carbide, don inganta saurin ruwan wuta akan thearfin zafin jiki a cikin layin da rage fitowar wutar lantarki yana da tasirin gaske, don tsawanta rayuwar tubes na lantarki a cikin aikace-aikacen ƙarfe niobium: ana amfani da babbar hanyar rage kai tsaye kai tsaye don samar da niobium na ƙarfe, fitarwa na niobium carbide da farko anyi amfani dashi azaman raguwa, kuma niobium pentoxide ya samar da karfe mai kauri niobium, wanda aka yi shi domin tsaftace karfe mai tsafta niobium, niobium carbide shima zai iya kai tsaye raguwa don samar da tsaftataccen karfe niobium niobium pentoxide.

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