Ochrann\u00e9 trubky termo\u010dl\u00e1nk\u016f jsou nezbytn\u00fdm prvkem ka\u017ed\u00e9 pr\u016fmyslov\u00e9 pece pou\u017e\u00edvaj\u00edc\u00ed kovy, jako je hlin\u00edk, zinek a m\u011b\u010f. Chr\u00e1n\u00ed termo\u010dl\u00e1nkov\u00e9 svorky p\u0159ed drsn\u00fdm prost\u0159ed\u00edm, tepeln\u00fdmi r\u00e1zy a p\u0159\u00edm\u00fdm p\u016fsoben\u00edm plamene.<\/p>\n
N\u011bmeck\u00fd fyzik Thomas Seebeck zjistil, \u017ee p\u0159i kontaktu dvou r\u016fznorod\u00fdch kov\u016f s rozd\u00edlnou teplotou mezi nimi te\u010de elektrick\u00fd proud - tento jev je zn\u00e1m\u00fd jako Seebeck\u016fv jev.<\/p>\n
Ochrann\u00e9 trubi\u010dky termo\u010dl\u00e1nk\u016f z karbidu k\u0159em\u00edku s oxidovou vazbou jsou vynikaj\u00edc\u00ed volbou pro aplikace s roztaven\u00fdm kovem, proto\u017ee nab\u00edzej\u00ed v\u00fdjime\u010dnou odolnost proti korozi, pevnost v ohybu a vysokou tepelnou vodivost. Krom\u011b toho jsou d\u00edky sv\u00e9 vynikaj\u00edc\u00ed odolnosti proti korozi, pevnosti v ohybu a tepeln\u00e9 vodivosti ide\u00e1ln\u00ed pro pr\u016fmyslov\u00e9 pece pou\u017e\u00edvan\u00e9 k v\u00fdrob\u011b keramiky, kov\u016f nebo pro velk\u00e9 kotle, proto\u017ee odol\u00e1vaj\u00ed extr\u00e9mn\u00edmu teplu bez rozta\u017enosti a chemik\u00e1li\u00edm bez rozta\u017enosti - ide\u00e1ln\u00ed pro velk\u00e9 kotle nebo za\u0159\u00edzen\u00ed na v\u00fdrobu keramiky. Dod\u00e1vaj\u00ed se ve verz\u00edch s reak\u010dn\u00ed vazbou (nitridov\u00e1 vazba), uhl\u00edkov\u00e9 (izopresn\u00ed). A kone\u010dn\u011b pro v\u011bt\u0161\u00ed flexibilitu se dod\u00e1vaj\u00ed jako reak\u010dn\u011b v\u00e1zan\u00e9 (nitridov\u011b v\u00e1zan\u00e9) varianty pro v\u011bt\u0161\u00ed univerz\u00e1lnost pou\u017eit\u00ed.<\/p>\n
Nej\u010dast\u011bji se pou\u017e\u00edvaj\u00ed ochrann\u00e9 trubice z karbidu k\u0159em\u00edku s oxidovou vazbou, kter\u00e9 se vyr\u00e1b\u011bj\u00ed z \u010dern\u00e9ho pr\u00e1\u0161ku karbidu k\u0159em\u00edku alfa\/beta sm\u00edchan\u00e9ho s SiO2. Po sp\u00e9k\u00e1n\u00ed p\u0159i vysok\u00fdch teplot\u00e1ch, aby se zajistilo, \u017ee v materi\u00e1lu nez\u016fstanou \u017e\u00e1dn\u00e9 vzduchov\u00e9 kapsy, mohou oxidem v\u00e1zan\u00e9 trubi\u010dky poskytovat maxim\u00e1ln\u00ed odolnost proti opot\u0159eben\u00ed i v prost\u0159ed\u00ed s vysokou \u00farovn\u00ed ot\u011bru nebo opot\u0159eben\u00ed.<\/p>\n
Hexoloy SE je jednof\u00e1zov\u00e1 \u017e\u00e1ruvzdorn\u00e1 keramika s n\u00edzkou p\u00f3rovitost\u00ed vyroben\u00e1 z karbidu k\u0159em\u00edku Hexoloy alfa, kter\u00e1 nab\u00edz\u00ed jednu z nejpevn\u011bj\u0161\u00edch a nejspolehliv\u011bj\u0161\u00edch ochrann\u00fdch trubek, je\u017e jsou dnes k dispozici. Je ide\u00e1ln\u00ed pro prost\u0159ed\u00ed vystaven\u00e1 chemicky reaktivn\u00edm l\u00e1tk\u00e1m obsahuj\u00edc\u00edm kyseliny, z\u00e1sady nebo oxida\u010dn\u00ed \u010dinidla; Hexoloy SE se vyzna\u010duje vynikaj\u00edc\u00ed pevnost\u00ed v ohybu p\u0159i zv\u00fd\u0161en\u00fdch teplot\u00e1ch, jako\u017e i vynikaj\u00edc\u00ed odolnost\u00ed proti korozi a od\u011bru a tak\u00e9 vynikaj\u00edc\u00ed odolnost\u00ed proti tepeln\u00fdm \u0161ok\u016fm; nav\u00edc m\u00e1 pevn\u011bj\u0161\u00ed a pru\u017en\u011bj\u0161\u00ed vlastnosti ne\u017e komer\u010dn\u011b dostupn\u00e1 keramika nebo kovov\u00e9 slitiny a z\u00e1rove\u0148 odol\u00e1v\u00e1 vy\u0161\u0161\u00edm tlak\u016fm, ne\u017e jak\u00e9 dok\u00e1\u017e\u00ed b\u011b\u017en\u00e9 materi\u00e1ly.<\/p>\n
Karbid k\u0159em\u00edku v\u00e1zan\u00fd nitridem vykazuje vynikaj\u00edc\u00ed mechanickou pevnost a je schopen odol\u00e1vat te\u010den\u00ed, oxidaci, korozi a tepeln\u00fdm \u0161ok\u016fm. Krom\u011b toho se tento materi\u00e1l m\u016f\u017ee pochlubit vynikaj\u00edc\u00ed lomovou hou\u017eevnatost\u00ed s n\u00edzk\u00fdm koeficientem rozta\u017enosti p\u0159i vysok\u00fdch teplot\u00e1ch; d\u00edky sv\u00fdm nenas\u00e1kav\u00fdm vlastnostem v\u016f\u010di tavenin\u00e1m hlin\u00edku a jin\u00fdm kovov\u00fdm slitin\u00e1m je ide\u00e1ln\u00edm materi\u00e1lem pro n\u00e1bytek pec\u00ed.<\/p>\n
Sp\u00e9kan\u00fd karbid k\u0159em\u00edku Hexoloy SE se vyr\u00e1b\u00ed beztlakov\u00fdm sp\u00e9k\u00e1n\u00edm submikronov\u00e9ho pr\u00e1\u0161ku ve speci\u00e1ln\u00edm procesu vytla\u010dov\u00e1n\u00ed, \u010d\u00edm\u017e vznik\u00e1 jemnozrnn\u00fd, hust\u00fd (85%) v\u00fdrobek s v\u00fdjime\u010dnou odolnost\u00ed proti korozi, oxidaci a vysok\u00fdm teplot\u00e1m. Vysoce odoln\u00fd a inertn\u00ed v\u016f\u010di v\u011bt\u0161in\u011b kyselin nebo louh\u016f; k dispozici v r\u016fzn\u00fdch vn\u011bj\u0161\u00edch pr\u016fm\u011brech a d\u00e9lk\u00e1ch pro r\u016fzn\u00e9 typy teplotn\u00edch \u010didel.<\/p>\n
Termo\u010dl\u00e1nek je za\u0159\u00edzen\u00ed pro m\u011b\u0159en\u00ed teploty sledov\u00e1n\u00edm rozd\u00edl\u016f elektrick\u00e9ho potenci\u00e1lu mezi r\u016fznorod\u00fdmi kovy spojen\u00fdmi na sv\u00fdch konc\u00edch, nap\u0159\u00edklad v pec\u00edch nebo stroj\u00edch na odl\u00e9v\u00e1n\u00ed kov\u016f. Termo\u010dl\u00e1nek lze nal\u00e9zt v mnoha aplikac\u00edch pro m\u011b\u0159en\u00ed teploty, nap\u0159\u00edklad v pec\u00edch nebo v d\u00edln\u00e1ch na odl\u00e9v\u00e1n\u00ed kov\u016f.<\/p>\n
Trubky Hexoloy SE maj\u00ed jeden uzav\u0159en\u00fd konec se standardn\u00edm z\u00e1vitov\u00fdm p\u0159ipojen\u00edm pro \u0161rouben\u00ed nebo mont\u00e1\u017en\u00ed p\u0159\u00edruby a tak\u00e9 vynikaj\u00edc\u00ed tepelnou vodivost a rychlou odezvu na zm\u011bny teploty, co\u017e z nich \u010din\u00ed vynikaj\u00edc\u00ed volbu pro m\u011b\u0159en\u00ed teploty kapalin a plyn\u016f v procesn\u00edch aplikac\u00edch. Jej\u00ed extr\u00e9mn\u011b odoln\u00fd povrch a inertn\u00ed materi\u00e1l nav\u00edc eliminuj\u00ed rizika zachycen\u00ed \u017eeleza spojen\u00e1 s litinov\u00fdmi trubkami.<\/p>\n
Hexoloy SE je pokro\u010dil\u00fd materi\u00e1l ze slinut\u00e9ho karbidu k\u0159em\u00edku alfa navr\u017een\u00fd pro vynikaj\u00edc\u00ed v\u00fdkon v n\u00e1ro\u010dn\u00fdch a korozivn\u00edch prost\u0159ed\u00edch. D\u00edky vysok\u00e9 \u010distot\u011b m\u00e1 za n\u00e1sledek vynikaj\u00edc\u00ed tvrdost a pevnost i n\u00edzkou p\u00f3rovitost ve srovn\u00e1n\u00ed s tradi\u010dn\u00ed keramikou nebo kovov\u00fdmi slitinami. Hexoloy SE m\u00e1 samomazn\u00e9 povrchov\u00e9 vlastnosti se sf\u00e9rick\u00fdmi p\u00f3ry pro maz\u00e1n\u00ed pohybliv\u00fdch \u010d\u00e1st\u00ed nebo ploch mechanick\u00fdch t\u011bsn\u011bn\u00ed, co\u017e pom\u00e1h\u00e1 sni\u017eovat opot\u0159eben\u00ed v t\u0159ec\u00edch aplikac\u00edch a z\u00e1rove\u0148 nab\u00edz\u00ed v\u00fdjime\u010dnou odolnost proti korozi, vysok\u00fdm teplot\u00e1m a dobr\u00e9 tepeln\u011b vodiv\u00e9 vlastnosti.<\/p>\n
Hexoloy se vyr\u00e1b\u00ed beztlakov\u00fdm sp\u00e9k\u00e1n\u00edm, p\u0159i kter\u00e9m se pr\u00e1\u0161kov\u00fd materi\u00e1l m\u011bn\u00ed p\u0159\u00edmo na pevn\u00fd materi\u00e1l, ani\u017e by se nejprve roztavil, co\u017e kop\u00edruje to, co se p\u0159irozen\u011b d\u011bje za intenzivn\u00edho tepla a tlaku v zemsk\u00e9 k\u016f\u0159e po tis\u00edcilet\u00ed - tvorba krystal\u016f za vysok\u00e9ho tepeln\u00e9ho tlaku atd.<\/p>\n
V\u00fdsledkem je materi\u00e1l tvrd\u00fd jako diamant, ale 2,5kr\u00e1t leh\u010d\u00ed, odoln\u00fd proti od\u011bru a korozi a schopn\u00fd odol\u00e1vat teplot\u00e1m a\u017e 1950 \u00b0C, pokud je um\u00edst\u011bn v inertn\u00edm plynu, jako je vzduch nebo dus\u00edk. Krom\u011b toho je jeho koeficient tepeln\u00e9 rozta\u017enosti extr\u00e9mn\u011b n\u00edzk\u00fd, co\u017e mu umo\u017e\u0148uje odol\u00e1vat teplotn\u00edm \u0161ok\u016fm l\u00e9pe ne\u017e karbid wolframu, oxid hlinit\u00fd nebo materi\u00e1ly z nitridu k\u0159em\u00edku s reak\u010dn\u00ed vazbou.<\/p>\n
In\u017een\u00fd\u0159i spole\u010dnosti Saint-Gobain Ceramic Materials str\u00e1vili des\u00edtky let zdokonalov\u00e1n\u00edm materi\u00e1lu Hexoloy do podoby vynikaj\u00edc\u00edho keramick\u00e9ho materi\u00e1lu, kter\u00fd dok\u00e1\u017ee p\u0159ekonat konven\u010dn\u00ed keramiku a kovy v panc\u00e9\u0159ov\u00fdch, vysokoteplotn\u00edch, chemick\u00fdch a abrazivn\u00edch podm\u00ednk\u00e1ch. V \u00fazk\u00e9 spolupr\u00e1ci se z\u00e1kazn\u00edky se in\u017een\u00fd\u0159i spole\u010dnosti Saint-Gobain specializuj\u00ed na v\u00fdvoj technick\u00fdch \u0159e\u0161en\u00ed \u0161it\u00fdch na m\u00edru pro ka\u017edou aplikaci - nab\u00edzej\u00ed technick\u00e1 \u0159e\u0161en\u00ed \u0161it\u00e1 na m\u00edru konkr\u00e9tn\u00edm aplikac\u00edm z\u00e1kazn\u00edk\u016f a spl\u0148uj\u00edc\u00ed v\u0161echny jejich specifick\u00e9 po\u017eadavky.<\/p>\n
Reak\u010dn\u011b v\u00e1zan\u00fd karbid k\u0159em\u00edku (RBSC) je pokro\u010dil\u00e1 technick\u00e1 keramika vyroben\u00e1 beztlakov\u00fdm sp\u00e9k\u00e1n\u00edm \u010d\u00e1stic oxidu k\u0159emi\u010dit\u00e9ho submikronov\u00e9 velikosti, kter\u00e1 se vyzna\u010duje vynikaj\u00edc\u00ed rozm\u011brovou stabilitou a teplotn\u00ed odolnost\u00ed, jako\u017e i vynikaj\u00edc\u00ed chemickou odolnost\u00ed v oxida\u010dn\u00edch i reduk\u010dn\u00edch podm\u00ednk\u00e1ch, v\u010detn\u011b odolnosti proti kysel\u00e9 korozi. Tepeln\u00e1 vodivost tohoto materi\u00e1lu nav\u00edc umo\u017e\u0148uje rychl\u00fd p\u0159enos tepla i p\u0159i zv\u00fd\u0161en\u00fdch teplot\u00e1ch v n\u00e1ro\u010dn\u00fdch podm\u00ednk\u00e1ch, p\u0159i\u010dem\u017e vlastnosti \u0161irok\u00e9ho p\u00e1sma jej \u010din\u00ed vysoce odoln\u00fdm.<\/p>\n
Reaktivn\u011b v\u00e1zan\u00fd karbid k\u0159em\u00edku nab\u00edz\u00ed nejni\u017e\u0161\u00ed v\u00fdrobn\u00ed n\u00e1klady a je zrnit\u00fd, tak\u017ee poskytuje vynikaj\u00edc\u00ed odolnost proti opot\u0159eben\u00ed a korozi s pevnost\u00ed 1,5kr\u00e1t vy\u0161\u0161\u00ed ne\u017e karbid wolframu. D\u00edky sv\u00e9 vynikaj\u00edc\u00ed odolnosti proti opot\u0159eben\u00ed je vhodn\u00fd pro za\u0159\u00edzen\u00ed na m\u011b\u0159en\u00ed teploty pou\u017e\u00edvan\u00e1 v pr\u016fmyslov\u00fdch pec\u00edch pro keramiku, metalurgii a velk\u00e9 kotle, zat\u00edmco jeho rychl\u00e1 doba chlazen\u00ed a schopnost rychl\u00e9ho vh\u00e1n\u011bn\u00ed tepla umo\u017e\u0148uj\u00ed rychl\u00e9 procesy vh\u00e1n\u011bn\u00ed tepla.<\/p>\n
Atraktor pro mechanick\u00e9 ucp\u00e1vky, tlumi\u010de pr\u016ftoku, v\u00fdstelky potrub\u00ed a v\u011bt\u0161\u00ed opot\u0159ebiteln\u00e9 d\u00edly pou\u017e\u00edvan\u00e9 v t\u011b\u017eebn\u00edm pr\u016fmyslu je vyroben z tvrd\u00e9ho, hou\u017eevnat\u00e9ho materi\u00e1lu s velkou odolnost\u00ed proti ot\u011bru, kter\u00fd je lehk\u00fd a m\u00e1 polovi\u010dn\u00ed hustotu ne\u017e ocel; jeho tvrdost a pevnost v tahu konkuruje materi\u00e1l\u016fm z titanu a karbidu wolframu. M\u00e1 vynikaj\u00edc\u00ed vlastnosti odolnosti proti tepeln\u00fdm \u0161ok\u016fm a opot\u0159eben\u00ed. Proto\u017ee odol\u00e1v\u00e1 chemick\u00e9 korozi i tepeln\u00fdm \u0161ok\u016fm a opot\u0159eben\u00ed - ide\u00e1ln\u00ed vlastnosti p\u0159i pou\u017eit\u00ed v sou\u010d\u00e1stech se slo\u017eit\u00fdmi tvary. Karbid titanu je tak\u00e9 dob\u0159e srovnateln\u00fd s materi\u00e1ly z titanu i karbidu wolframu, pokud jde o odolnost proti opot\u0159eben\u00ed ve srovn\u00e1n\u00ed s jejich p\u0159\u00edslu\u0161n\u00fdmi prot\u011bj\u0161ky - ide\u00e1ln\u00ed pro mechanick\u00e1 t\u011bsn\u011bn\u00ed, tlumivky pro regulaci pr\u016ftoku, vlo\u017eky potrub\u00ed a v\u011bt\u0161\u00ed opot\u0159ebiteln\u00e9 d\u00edly pou\u017e\u00edvan\u00e9 v r\u016fzn\u00fdch pr\u016fmyslov\u00fdch odv\u011btv\u00edch. Karbid titanu m\u00e1 vynikaj\u00edc\u00ed vlastnosti odolnosti proti chemick\u00e9 korozi, proto\u017ee m\u00e1 vynikaj\u00edc\u00ed odolnost proti chemick\u00e9 korozi jako tepeln\u00fd \u0161ok a odolnost proti opot\u0159eben\u00ed podobn\u011b jako materi\u00e1ly z karbidu titanu a wolframu, p\u0159i\u010dem\u017e m\u00e1 srovnateln\u00e9 hodnoty tvrdosti\/pevnosti v tahu srovnateln\u00e9 s materi\u00e1ly z karbidu titanu\/ wolframu, pokud jde o vlastnosti odolnosti proti tepeln\u00e9mu \u0161oku\/opot\u0159eben\u00ed, a tak\u00e9 lehkou hustotu srovnatelnou s ocel\u00ed, p\u0159i\u010dem\u017e m\u00e1 srovnateln\u00e9 vlastnosti tvrdosti\/pevnosti v tahu srovnateln\u00e9 s materi\u00e1ly z karbidu titanu i wolframu, pokud jsou vystaveny p\u016fsoben\u00ed tepla.<\/p>","protected":false},"excerpt":{"rendered":"
Types of Silicon Carbide Thermocouple Protection Tubes Thermocouple protection tubes are an essential element in any industrial kiln using metals such as aluminum, zinc and copper. They shield thermocouple terminals from harsh environments, thermal shocks and direct flame impingements. German physicist Thomas Seebeck discovered that when two dissimilar metals with different temperatures came into contact, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[67],"tags":[],"class_list":["post-282","post","type-post","status-publish","format-standard","hentry","category-silicon-carbide"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/posts\/282","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/comments?post=282"}],"version-history":[{"count":1,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/posts\/282\/revisions"}],"predecessor-version":[{"id":283,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/posts\/282\/revisions\/283"}],"wp:attachment":[{"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/media?parent=282"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/categories?post=282"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/tags?post=282"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}