[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.zmmodel.cz\/vysokouhlikova-loziskova-ocel-pro-vyrobu-lozisek-pro-tramvajova-vozidla\/#Article","mainEntityOfPage":"https:\/\/www.zmmodel.cz\/vysokouhlikova-loziskova-ocel-pro-vyrobu-lozisek-pro-tramvajova-vozidla\/","headline":"Vysokouhl\u00edkov\u00e1 lo\u017eiskov\u00e1 ocel pro v\u00fdrobu lo\u017eisek pro tramvajov\u00e1 vozidla","name":"Vysokouhl\u00edkov\u00e1 lo\u017eiskov\u00e1 ocel pro v\u00fdrobu lo\u017eisek pro tramvajov\u00e1 vozidla","description":"\u0158\u00edk\u00e1 v\u00e1m n\u011bco film \u201eAnd\u011bl na hor\u00e1ch\u201c a Jaroslavem Marvanem v hlavn\u00ed roli? Ten film m\u00e1m moc r\u00e1d a nikdy m\u011b jeho sledov\u00e1n\u00ed nenudilo. Objev\u00ed se v n\u011bm mimo jin\u00e9 i sta\u0159i\u010dk\u00e1 tramvaj, kter\u00e1 v Praze jezdila po kolej\u00edch v pades\u00e1t\u00fdch letech dvac\u00e1t\u00e9ho stolet\u00ed. Ji\u017e tehdy byla k v\u00fdrob\u011b t\u011bchto kolejov\u00fdch vozidel zapot\u0159eb\u00ed lo\u017eiska. Tramvaje […]","datePublished":"2025-09-17","dateModified":"2025-09-17","author":{"@type":"Person","@id":"https:\/\/www.zmmodel.cz\/author\/#Person","name":"","url":"https:\/\/www.zmmodel.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/9cae764794acc12213aa530e21558ed2bd96c03f91e0c3ad21cc1905765be658?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/9cae764794acc12213aa530e21558ed2bd96c03f91e0c3ad21cc1905765be658?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"zmmodel.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.zmmodel.cz\/wp-content\/uploads\/tram-377537_640_3.jpg","url":"https:\/\/www.zmmodel.cz\/wp-content\/uploads\/tram-377537_640_3.jpg","height":0,"width":0},"url":"https:\/\/www.zmmodel.cz\/vysokouhlikova-loziskova-ocel-pro-vyrobu-lozisek-pro-tramvajova-vozidla\/","about":["N\u00e1kupy"],"wordCount":372,"articleBody":"         \u0158\u00edk\u00e1 v\u00e1m n\u011bco film \u201eAnd\u011bl na hor\u00e1ch\u201c a Jaroslavem Marvanem v hlavn\u00ed roli? Ten film m\u00e1m moc r\u00e1d a nikdy m\u011b jeho sledov\u00e1n\u00ed nenudilo. Objev\u00ed se v n\u011bm mimo jin\u00e9 i sta\u0159i\u010dk\u00e1 tramvaj, kter\u00e1 v Praze jezdila po kolej\u00edch v pades\u00e1t\u00fdch letech dvac\u00e1t\u00e9ho stolet\u00ed. Ji\u017e tehdy byla k v\u00fdrob\u011b t\u011bchto kolejov\u00fdch vozidel zapot\u0159eb\u00ed lo\u017eiska. Tramvaje kup\u0159\u00edkladu pot\u0159ebuj\u00ed ke sv\u00e9mu bezpe\u010dn\u00e9mu provozu tlapov\u00e1 lo\u017eiska, jejich\u017e sou\u010d\u00e1st\u00ed jsou ku\u017eel\u00edkov\u00e1 lo\u017eiska. Vyskytuj\u00ed se tam i v\u00e1le\u010dkov\u00e1 a soude\u010dkov\u00e1 lo\u017eiska. Tramvaje nejezd\u00ed jen v Praze, setk\u00e1te se s nimi u n\u00e1s i v Ostrav\u011b, v Olomouci, v Brn\u011b, kde jsou zn\u00e1m\u00e9 pod n\u00e1zvem \u201e\u0161alina\u201c, d\u00e1le pak v Liberci, v Plzni, v Most\u011b a v Litv\u00ednov\u011b. Tramvaje jsou st\u00e1le obl\u00edben\u00fdm dopravn\u00edm prost\u0159edkem. T\u0159eba pr\u00e1v\u011b proto, \u017ee se jim vyh\u00fdbaj\u00ed dopravn\u00ed z\u00e1cpy, nebo\u0165 kolejov\u00e9 p\u00e1sy zpravidla vedou mimo vozovku. K v\u00fdrob\u011b lo\u017eisek je zapot\u0159eb\u00ed u\u0161lechtil\u00e1 legovan\u00e1 ocel. Nap\u0159\u00edklad vysokouhl\u00edkov\u00e1 ocel, kter\u00e1 se ozna\u010duje jako 1.3505 a tak\u00e9 100Cr6 a dle st\u00e1tn\u00ed normy \u010cSN 14 109. Tento materi\u00e1l vynik\u00e1 vysokou tvrdost\u00ed, pevnost\u00ed, odolnost\u00ed v\u016f\u010di opot\u0159eben\u00ed a tak\u00e9 dobrou prokalitelnost\u00ed, kter\u00e1 zajist\u00ed pot\u0159ebn\u00e9 mechanick\u00e9 vlastnosti fin\u00e1ln\u00edho v\u00fdrobku. Tyto vlastnosti materi\u00e1lu ud\u00e1v\u00e1 vy\u0161\u0161\u00ed obsah uhl\u00edku a z\u00e1rove\u0148 leguj\u00edc\u00ed prvky k\u0159em\u00edk, mangan a chrom. Tato ocel je krom\u011b v\u00fdroby lo\u017eisek vyu\u017e\u00edv\u00e1na i pro zhotoven\u00ed h\u0159\u00eddel\u00ed a \u010dep\u016f, kter\u00e9 jsou velmi mechanicky nam\u00e1h\u00e1ny. D\u00e1le pak pro  v\u00fdrobu u m\u011b\u0159idel a speci\u00e1ln\u00edch n\u00e1stroj\u016f, kde je nutn\u00e1 nejen vysok\u00e1 p\u0159esnost, ale i tvrdost povrchu m\u011b\u0159ic\u00edch ploch. Ocel\u00e1rny v\u0161ak nedod\u00e1vaj\u00ed na trh pouze lo\u017eiskovou ocel. Produkuj\u00ed nap\u0159\u00edklad i ocel konstruk\u010dn\u00ed, n\u00edzkouhl\u00edkovou legovanou ocel, chromovou \u017e\u00e1ropevnou ocel, cementa\u010dn\u00ed ocel, nitrida\u010dn\u00ed ocel, vysoce hou\u017eevnatou ocel s vynikaj\u00edc\u00ed odolnost\u00ed v\u016f\u010di opot\u0159eben\u00ed, kotlovou ocel, uhl\u00edkovou ocel nebo nerezovou \u017e\u00e1ruvzdornou ocel.                                                                                                                                                                                                                                                                                                                                                                                                  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