{"id":224,"date":"2023-10-18T10:21:47","date_gmt":"2023-10-18T02:21:47","guid":{"rendered":"https:\/\/advance-ceramics.com\/?p=224"},"modified":"2023-10-18T10:44:20","modified_gmt":"2023-10-18T02:44:20","slug":"keramicky-penovy-filtr-z-karbidu-kremiku","status":"publish","type":"post","link":"https:\/\/advance-ceramics.com\/cs\/silicon-carbide-ceramic-foam-filter\/","title":{"rendered":"keramick\u00fd p\u011bnov\u00fd filtr z karbidu k\u0159em\u00edku"},"content":{"rendered":"

sic keramick\u00fd p\u011bnov\u00fd filtr je \u00fa\u010dinn\u00fd filtr roztaven\u00e9ho kovu, kter\u00fd chr\u00e1n\u00ed roztavenou hlin\u00edkovou kapalinu p\u0159ed eroz\u00ed a koroz\u00ed a z\u00e1rove\u0148 eliminuje inkluze a vytv\u00e1\u0159\u00ed vrstevnat\u00fd tok, co\u017e vede k \u010dist\u0161\u00edm kov\u016fm, kvalitn\u011bj\u0161\u00edm odlitk\u016fm a men\u0161\u00edmu mno\u017estv\u00ed odpadu, co\u017e vede ke zlep\u0161en\u00ed hospod\u00e1\u0159sk\u00fdch v\u00fdsledk\u016f.<\/p>\n

Toto nov\u00e9 slo\u017een\u00ed obsahuje podstatn\u011b v\u00edce kou\u0159ov\u00e9ho oxidu k\u0159emi\u010dit\u00e9ho ne\u017e p\u0159edchoz\u00ed suspenze, co\u017e vytv\u00e1\u0159\u00ed siln\u011bj\u0161\u00ed produkty s vysokou teplotn\u00ed pevnost\u00ed, kter\u00e9 odol\u00e1vaj\u00ed velk\u00fdm tok\u016fm roztaven\u00e9ho kovu. Vypalovan\u00e9 polotovary vyroben\u00e9 s pou\u017eit\u00edm t\u00e9to suspenze maj\u00ed velkou teplotn\u00ed pevnost i velk\u00e9 pr\u016ftoky.<\/p>\n

Filtra\u010dn\u00ed vlastnosti<\/h2>\n

keramick\u00fd p\u011bnov\u00fd filtr z karbidu k\u0159em\u00edku m\u00e1 vynikaj\u00edc\u00ed filtra\u010dn\u00ed vlastnosti a dok\u00e1\u017ee z roztaven\u00e9ho kovu odstranit inkluze a zachycen\u00e9 plyny, \u010d\u00edm\u017e vytv\u00e1\u0159\u00ed hladk\u00fd lamin\u00e1rn\u00ed tok b\u011bhem procesu lit\u00ed a vede k \u010dist\u0161\u00edmu kovu s men\u0161\u00edm po\u010dtem inkluz\u00ed a kvalitn\u011bj\u0161\u00edm odlitk\u016fm. Krom\u011b toho jsou tyto materi\u00e1ly dostate\u010dn\u011b odoln\u00e9, aby odolaly prost\u0159ed\u00ed s vysok\u00fdmi teplotami a z\u00e1rove\u0148 odolaly korozi.<\/p>\n

keramick\u00fd p\u011bnov\u00fd filtr z karbidu k\u0159em\u00edku lze pou\u017e\u00edt b\u011bhem procesu \u010di\u0161t\u011bn\u00ed kujn\u00e9 litiny, tv\u00e1rn\u00e9 litiny a \u0161ed\u00e9 litiny k odstran\u011bn\u00ed ne\u010distot, kter\u00e9 by mohly ovlivnit kvalitu hotov\u00fdch v\u00fdrobk\u016f. Krom\u011b toho mohou tyto filtry zlep\u0161it celkov\u00e9 metalurgick\u00e9 procesy a sou\u010dasn\u011b zv\u00fd\u0161it v\u00fdt\u011b\u017enost v\u00fdrobk\u016f p\u0159i sou\u010dasn\u00e9m sn\u00ed\u017een\u00ed odpadu d\u00edky lep\u0161\u00edmu \u0159\u00edzen\u00ed v\u00fdt\u011b\u017enosti odpadu a ni\u017e\u0161\u00ed tvorb\u011b kovov\u00e9ho odpadu b\u011bhem tv\u00e1\u0159ec\u00edch proces\u016f.<\/p>\n

sic keramick\u00fd p\u011bnov\u00fd filtr se tak\u00e9 snadno instaluje a vyzna\u010duje se vysokou mechanickou pevnost\u00ed, tak\u017ee je vynikaj\u00edc\u00ed volbou pro pr\u016fmyslov\u00e9 pece, kter\u00e9 vy\u017eaduj\u00ed vysok\u00e9 teploty a tlaky. Krom\u011b toho maj\u00ed tyto filtry n\u00edzk\u00e9 ztr\u00e1ty tepeln\u00fdm \u0161okem a jsou tak\u00e9 odoln\u00e9 v\u016f\u010di chemick\u00fdm v\u00fdpar\u016fm.<\/p>\n

keramick\u00fd p\u011bnov\u00fd filtr z karbidu k\u0159em\u00edku m\u00e1 vysokou p\u00f3rovitost, kter\u00e1 umo\u017e\u0148uje snadn\u00fd pr\u016ftok roztaven\u00e9ho kovu p\u0159i odl\u00e9v\u00e1n\u00ed a zabra\u0148uje ucp\u00e1v\u00e1n\u00ed p\u0159i p\u0159enosu tepla. Maj\u00ed tak\u00e9 dobrou odolnost v\u016f\u010di kyselin\u00e1m a z\u00e1sad\u00e1m, aby odolaly vysok\u00fdm teplot\u00e1m a chemick\u00fdm podm\u00ednk\u00e1m, kter\u00e9 se vyskytuj\u00ed p\u0159i v\u00fdrobn\u00edch procesech.<\/p>\n

Stabilita p\u0159i vysok\u00fdch teplot\u00e1ch<\/h2>\n

Tento vyn\u00e1lez zahrnuje filtr z karbidu k\u0159em\u00edku ur\u010den\u00fd k pou\u017eit\u00ed p\u0159i filtraci roztaven\u00e9ho kovu. T\u011bleso filtru je vyrobeno z keramick\u00e9 suspenze obsahuj\u00edc\u00ed karbid k\u0159em\u00edku a oxid k\u0159emi\u010dit\u00fd ve stejn\u00e9m pom\u011bru. Suspenze obsahuje koloidn\u00ed oxid k\u0159emi\u010dit\u00fd a s\u00ed\u0165ovan\u00e9 organick\u00e9 polymery; keramick\u00e1 suspenze napu\u0161t\u011bn\u00e1 touto p\u011bnou se pak vypaluje p\u0159i zv\u00fd\u0161en\u00e9 teplot\u011b, \u010d\u00edm\u017e vznik\u00e1 filtr z karbidu k\u0159em\u00edku. Vyn\u00e1lez poskytuje slo\u017een\u00ed suspenze, kter\u00e9 vykazuje podstatn\u011b vy\u0161\u0161\u00ed pevnost p\u0159i pokojov\u00e9 teplot\u011b a p\u0159i vysok\u00e9 teplot\u011b ve srovn\u00e1n\u00ed s p\u0159edchoz\u00edmi pr\u016fmyslov\u00fdmi filtry z karbidu k\u0159em\u00edku, co\u017e umo\u017e\u0148uje ten\u010d\u00ed filtry o minim\u00e1ln\u00ed tlou\u0161\u0165ce. Pevnost suspenze zvy\u0161uje prim\u00e1rn\u00ed pou\u017eitelnost filtr\u016f Bylo zji\u0161t\u011bno, \u017ee siln\u00e1 suspenze zlep\u0161uje prim\u00e1rn\u00ed pou\u017eitelnost filtr\u016f. P\u0159edpokl\u00e1d\u00e1 se, \u017ee ke zv\u00fd\u0161en\u00e9 pevnosti p\u0159i pokojov\u00e9 a vysok\u00e9 teplot\u011b p\u0159isp\u00edv\u00e1 vysok\u00fd tlak par pojiv z kou\u0159ov\u00e9ho oxidu k\u0159emi\u010dit\u00e9ho.<\/p>\n

Tato suspenze je obzvl\u00e1\u0161t\u011b \u00fa\u010dinn\u00e1 p\u0159i filtraci roztaven\u00e9ho kovu, proto\u017ee ji lze nan\u00e1\u0161et v tenk\u00fdch vrstv\u00e1ch, ani\u017e by se deformovala jej\u00ed p\u011bna. V\u00fdsledkem je, \u017ee keramick\u00e1 vrstva vytvo\u0159en\u00e1 p\u0159i t\u00e9to aplikaci z\u016fst\u00e1v\u00e1 velmi stabiln\u00ed, kdy\u017e je vystavena velk\u00fdm proud\u016fm roztaven\u00e9ho kovu, odol\u00e1v\u00e1 turbulenc\u00edm a tepeln\u00fdm \u0161ok\u016fm a sou\u010dasn\u011b sni\u017euje obsah plynu v roztaven\u00e9m kovu a zlep\u0161uje organizaci v jeho matrici.<\/p>\n

N\u00edzk\u00e9 tlakov\u00e9 ztr\u00e1ty<\/h2>\n

sic keramick\u00fd p\u011bnov\u00fd filtr se vyzna\u010duje n\u00edzkou tlakovou ztr\u00e1tou. P\u0159i pou\u017eit\u00ed v odl\u00e9vac\u00edch aplikac\u00edch jsou schopny odstra\u0148ovat nekovov\u00e9 vm\u011bstky a \u010distit kovov\u00fd roztok a z\u00e1rove\u0148 sni\u017eovat m\u00edru zmetkovitosti litinov\u00fdch odlitk\u016f. Krom\u011b toho tyto filtry p\u0159i p\u016fsoben\u00ed kyselin snadno nekoroduj\u00ed a nezne\u010di\u0161\u0165uj\u00ed roztaven\u00fd kov - d\u00edky tomu jsou vhodn\u00e9 zejm\u00e9na pro odl\u00e9v\u00e1n\u00ed slitin m\u011bdi a ocelov\u00fdch odlitk\u016f.<\/p>\n

Kombinace karbidu k\u0159em\u00edku s dal\u0161\u00edmi keramick\u00fdmi materi\u00e1ly, jako je oxid hlinit\u00fd, je mo\u017en\u00e1 a ide\u00e1ln\u00ed, pokud je velikost zrn men\u0161\u00ed ne\u017e 45 mikron\u016f (nejl\u00e9pe -325 ok, i kdy\u017e lze pou\u017e\u00edt i v\u011bt\u0161\u00ed zrna). Lze pou\u017e\u00edt i jin\u00e9 keramick\u00e9 materi\u00e1ly, jako je zirkon, chrom a kordierit.<\/p>\n

Taven\u00fd oxid k\u0159emi\u010dit\u00fd m\u016f\u017ee poskytovat lep\u0161\u00ed tixotropn\u00ed vlastnosti a primabilitu ne\u017e oxid hlinit\u00fd nebo taven\u00fd oxid k\u0159emi\u010dit\u00fd p\u0159i spojov\u00e1n\u00ed se slo\u017ekami karbidu k\u0159em\u00edku v suspenzi, co\u017e se projevuje zv\u00fd\u0161enou primabilitou.<\/p>\n

Vznikl\u00e1 keramick\u00e1 suspenze se n\u00e1sledn\u011b vysu\u0161\u00ed a vyp\u00e1l\u00ed p\u0159i zv\u00fd\u0161en\u00e9 teplot\u011b, \u010d\u00edm\u017e se vytvo\u0159\u00ed keramick\u00e1 p\u011bna a vzniknou ohnivzdorn\u00e9 polotovary, kter\u00e9 vykazuj\u00ed zv\u00fd\u0161enou pevnost ve srovn\u00e1n\u00ed s t\u011bmi, kter\u00e9 se d\u0159\u00edve vyr\u00e1b\u011bly ze st\u00e1vaj\u00edc\u00edch typ\u016f suspenze. Tato zv\u00fd\u0161en\u00e1 pevnost nav\u00edc umo\u017e\u0148uje sn\u00ed\u017eit po\u017eadavky na minim\u00e1ln\u00ed tlou\u0161\u0165ku a z\u00e1rove\u0148 p\u0159in\u00e1\u0161\u00ed v\u00fdznamn\u00e9 \u00faspory n\u00e1klad\u016f d\u00edky men\u0161\u00edmu mno\u017estv\u00ed materi\u00e1l\u016f pot\u0159ebn\u00fdch k pota\u017een\u00ed povrchu p\u011bny.<\/p>\n

Biokompatibilita<\/h2>\n

Karbid k\u0159em\u00edku je inovativn\u00ed por\u00e9zn\u00ed keramick\u00fd materi\u00e1l s vynikaj\u00edc\u00edmi fyzik\u00e1ln\u00edmi, chemick\u00fdmi a teplotn\u00edmi vlastnostmi. Je lehk\u00fd a p\u0159itom extr\u00e9mn\u011b pevn\u00fd, jeho vlastnosti umo\u017e\u0148uj\u00ed tvarov\u00e1n\u00ed do r\u016fzn\u00fdch tvar\u016f podle specifick\u00fdch aplika\u010dn\u00edch pot\u0159eb a nach\u00e1z\u00ed \u0161irok\u00e9 uplatn\u011bn\u00ed v metalurgii, chemick\u00e9m pr\u016fmyslu, letectv\u00ed a ochran\u011b \u017eivotn\u00edho prost\u0159ed\u00ed.<\/p>\n

Filtr z karbidu k\u0159em\u00edku se vyzna\u010duje n\u00edzkou objemovou hustotou a trojrozm\u011brnou s\u00ed\u0165ovou strukturou s minim\u00e1ln\u00ed objemovou hustotou, jako\u017e i vysokou otev\u0159enou p\u00f3rovitost\u00ed a n\u00edzkou specifickou filtra\u010dn\u00ed plochou, co\u017e z n\u011bj \u010din\u00ed \u00fa\u010dinn\u00fd materi\u00e1l pro filtraci roztaven\u00fdch kov\u016f. Jejich konstrukce nav\u00edc zaji\u0161\u0165uje, \u017ee nezachycuj\u00ed prach b\u011bhem p\u0159epravy a lit\u00ed a z\u016fst\u00e1vaj\u00ed bez voln\u00fdch \u00falomk\u016f b\u011bhem lit\u00ed.<\/p>\n

Syst\u00e9m vzduchov\u00e9ho uz\u00e1v\u011bru m\u016f\u017ee zabr\u00e1nit migraci ne\u010distot s roztaven\u00fdm kovem, \u010d\u00edm\u017e se zv\u00fd\u0161\u00ed kvalita odlitku a zv\u00fd\u0161\u00ed rychlost v\u00fdroby. Krom\u011b toho sni\u017euje proud\u011bn\u00ed vzduchu ve form\u011b, \u010d\u00edm\u017e minimalizuje dopad roztaven\u00e9ho kovu na ni a zvy\u0161uje rychlost v\u00fdroby a sou\u010dasn\u011b sni\u017euje poruchy otvor\u016f pro \u010depy a p\u00edskov\u00e9 otvory a zlep\u0161uje \u00fa\u010dinnost odl\u00e9v\u00e1n\u00ed.<\/p>\n

sic keramick\u00e9 p\u011bnov\u00e9 filtry se vyzna\u010duj\u00ed vynikaj\u00edc\u00ed vysokoteplotn\u00ed stabilitou v \u017eelezn\u00e9 a m\u011bd\u011bn\u00e9 tavenin\u011b, ani\u017e by zne\u010di\u0161\u0165ovaly slitiny nebo oxidovaly roztaven\u00fd kov, tak\u017ee je lze opakovan\u011b pou\u017e\u00edvat, ani\u017e by ztratily svou filtra\u010dn\u00ed schopnost. Krom\u011b toho jsou d\u00edky sv\u00fdm mal\u00fdm n\u00e1rok\u016fm na prostor a snadn\u00e9 manipulaci skv\u011blou volbou filtra\u010dn\u00edho materi\u00e1lu pro litinov\u00e9 odlitky.<\/p>\n

\"keramick\u00fd<\/a><\/p>","protected":false},"excerpt":{"rendered":"

sic ceramic foam filter is effective molten metal filters that protect molten aluminum liquid from erosion and corrosion while eliminating inclusions and creating layer flow, leading to cleaner metals, higher quality castings and less waste, all leading to improved bottom lines. This new formulation contains considerably more fumed silica than previous slurries, creating stronger products… \u010c\u00edst d\u00e1le »keramick\u00fd p\u011bnov\u00fd filtr z karbidu k\u0159em\u00edku<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"off","neve_meta_content_width":70,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[16],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/posts\/224"}],"collection":[{"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/comments?post=224"}],"version-history":[{"count":3,"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/posts\/224\/revisions"}],"predecessor-version":[{"id":228,"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/posts\/224\/revisions\/228"}],"wp:attachment":[{"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/media?parent=224"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/categories?post=224"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/tags?post=224"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}