{"id":1850,"date":"2025-05-12T16:27:13","date_gmt":"2025-05-12T14:27:13","guid":{"rendered":"https:\/\/4living.sk\/?p=1850"},"modified":"2025-05-12T16:27:14","modified_gmt":"2025-05-12T14:27:14","slug":"valcovane-i-profily","status":"publish","type":"post","link":"https:\/\/4living.sk\/?p=1850","title":{"rendered":"Valcovan\u00e9 I-profily"},"content":{"rendered":"\n

Vysokokvalitn\u00e9 vykon\u00e1vanie stavebn\u00fdch \u00faloh nie je mo\u017en\u00e9 bez pou\u017eitia <\/em>oce\u013eov\u00fdch profilov a I-nosn\u00edkov.<\/em><\/a> Tieto valcovan\u00e9 kovov\u00e9 v\u00fdrobky s\u00fa \u017eiadan\u00e9 v\u0161ade tam, kde je potrebn\u00e1 pevnos\u0165 a odolnos\u0165 vo\u010di deform\u00e1cii. Ale \u010do je lep\u0161ie vybra\u0165 \u2013 I-nosn\u00edk alebo kan\u00e1l?<\/em><\/p>\n\n\n\n

Pozrime sa na vlastnosti oboch typov po\u017ei\u010dovn\u00ed \u00e1ut a na to, ak\u00e9 \u00falohy ka\u017ed\u00fd z nich vykon\u00e1va.<\/p>\n\n\n\n

Technick\u00e9 vlastnosti I-nosn\u00edka a kan\u00e1la<\/h2>\n\n\n\n

I-nosn\u00edk je typ ocele valcovanej za tepla, ktor\u00e1 poskytuje vysok\u00fa tuhos\u0165 a pevnos\u0165 a m\u00e1 charakteristick\u00e9 usporiadanie pol\u00edc. Nosn\u00edk pripom\u00edna p\u00edsmeno \u201eH\u201c a m\u00e1 r\u00f4zne d\u013a\u017eky. Nevyhnutn\u00e9 pre stropy a \u0165a\u017ek\u00e9 kon\u0161trukcie.<\/p>\n\n\n\n

Kan\u00e1l je lacnej\u0161\u00ed a \u013eah\u0161\u00ed kov valcovan\u00fd do tvaru p\u00edsmena \u201eU\u201c, ktor\u00fd sa pou\u017e\u00edva tam, kde je mo\u017en\u00e9 nahradi\u0165 mas\u00edvny I-nosn\u00edk \u2013 na spevnenie r\u00e1mov, priehradov\u00fdch nosn\u00edkov a mal\u00fdch kon\u0161trukci\u00ed, ako aj pri kon\u0161trukcii mechanizmov a strojov.<\/p>\n\n\n\n

\u010eal\u0161ou v\u00fdhodou kan\u00e1la v tvare U je odolnos\u0165 vo\u010di bo\u010dn\u00e9mu nam\u00e1haniu a absencia kr\u00fatenia pozd\u013a\u017enej osi. V\u010faka n\u00edzkemu obsahu kovu m\u00e1 kan\u00e1l vysok\u00fa nosnos\u0165.<\/p>\n\n\n\n

Ak\u00fd je rozdiel medzi I-nosn\u00edkom a kan\u00e1lom?<\/h2>\n\n\n\n

I-nosn\u00edk m\u00e1 tvar H, kan\u00e1l m\u00e1 tvar U. Produkt s I-nosn\u00edkom vydr\u017e\u00ed vy\u0161\u0161ie za\u0165a\u017eenie v porovnan\u00ed s kan\u00e1lom. Umiestnen\u00edm 2 nosn\u00edkov ved\u013ea seba sa ich pevnos\u0165 zv\u00fd\u0161i na polovicu a pri stohovan\u00ed jeden na druh\u00fd a\u017e \u0161tvorn\u00e1sobne. Preto sa tento valcovan\u00fd kov pou\u017e\u00edva pri stavbe budov a kon\u0161trukci\u00ed, ktor\u00e9 vy\u017eaduj\u00fa zv\u00fd\u0161en\u00fa pevnos\u0165 a nosnos\u0165.<\/p>\n\n\n\n

Kan\u00e1ly s\u00fa tie\u017e pevn\u00e9, ale \u013eah\u0161ie, preto sa pou\u017e\u00edvaj\u00fa v stroj\u00e1rstve a pri kon\u0161trukcii r\u00e1mov\u00fdch kovov\u00fdch kon\u0161trukci\u00ed.<\/p>\n\n\n\n

Met\u00f3da v\u00fdroby<\/h2>\n\n\n\n

I-nosn\u00edk<\/a> je zv\u00e1ran\u00fd v\u00fdrobok, najm\u00e4 ak je jeho ve\u013ekos\u0165 v\u00e4\u010d\u0161ia ako 60 mm. Men\u0161ie nosn\u00edky s\u00fa valcovan\u00e9 za tepla.<\/p>\n\n\n\n

Profily v tvare U sa vyr\u00e1baj\u00fa valcovan\u00edm za studena. Okraje obrobku s\u00fa ohnut\u00e9 pod uhlom, \u010do umo\u017e\u0148uje ten\u0161ie steny, \u010d\u00edm sa zni\u017euje cena a hmotnos\u0165 v\u00fdrobku.<\/p>\n\n\n\n

Sila<\/h2>\n\n\n\n

Tento parameter je ovplyvnen\u00fd faktormi za\u0165a\u017eenia, upevnenia at\u010f. Odolnos\u0165 v\u00fdrobkov vo\u010di za\u0165a\u017eeniu je odli\u0161n\u00e1 kv\u00f4li ich r\u00f4znym \u0165a\u017eisk\u00e1m. Kan\u00e1l je vhodn\u00fd pre mal\u00e9 kon\u0161trukcie so \u0161ikm\u00fdmi ohybmi a nosn\u00edk je vhodn\u00fd pre podlahy, ktor\u00e9 musia odol\u00e1va\u0165 vysok\u00e9mu za\u0165a\u017eeniu.<\/p>\n\n\n\n

\u010co je teda lep\u0161ie \u2013 I-nosn\u00edk alebo kan\u00e1l?<\/h2>\n\n\n\n

Pri v\u00fdbere medzi dvoma typmi valcovanej ocele zv\u00e1\u017ete \u00fa\u010del a \u00fa\u010del v\u00fdrobku.<\/p>\n\n\n\n

K\u013e\u00fa\u010dov\u00fdm ukazovate\u013eom je sila a ve\u013ekos\u0165. Ak s\u00fa pre v\u00e1\u0161 n\u00e1vrh prijate\u013en\u00e9 oba typy oce\u013eov\u00fdch v\u00fdrobkov, je lacnej\u0161ie zvoli\u0165 kan\u00e1l. Pre nosn\u00e9 kon\u0161trukcie je v\u0161ak vhodnej\u0161\u00ed spo\u013eahliv\u00fd I-nosn\u00edk, ktor\u00fd je odolnej\u0161\u00ed vo\u010di ohybu.<\/p>\n\n\n\n

Kan\u00e1ly sa \u010dasto zv\u00e1raj\u00fa a pou\u017e\u00edvaj\u00fa ako I-nosn\u00edky, ale nie je to \u00fapln\u00e1 n\u00e1hrada nosn\u00edka.<\/p>\n\n\n\n

Preto zv\u00e1\u017ete svoje potreby a pou\u017e\u00edvajte origin\u00e1lne oce\u013eov\u00e9 v\u00fdrobky na ich ur\u010den\u00fd \u00fa\u010del.<\/p>\n","protected":false},"excerpt":{"rendered":"

Vysokokvalitn\u00e9 vykon\u00e1vanie stavebn\u00fdch \u00faloh nie je mo\u017en\u00e9 bez pou\u017eitia oce\u013eov\u00fdch profilov a I-nosn\u00edkov. Tieto valcovan\u00e9 kovov\u00e9 v\u00fdrobky s\u00fa \u017eiadan\u00e9 v\u0161ade tam, kde je potrebn\u00e1 pevnos\u0165 a odolnos\u0165 vo\u010di deform\u00e1cii. Ale \u010do je lep\u0161ie vybra\u0165 \u2013 I-nosn\u00edk alebo kan\u00e1l? Pozrime sa na vlastnosti oboch typov po\u017ei\u010dovn\u00ed \u00e1ut a na to, ak\u00e9 \u00falohy ka\u017ed\u00fd z nich vykon\u00e1va. […]<\/p>\n","protected":false},"author":1,"featured_media":1851,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","tdm_status":"","tdm_grid_status":"","footnotes":""},"categories":[444],"tags":[],"class_list":["post-1850","post","type-post","status-publish","format-standard","has-post-thumbnail","category-rady-a-navody"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t