[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.candid.cz\/nepotrebne-znalosti\/#Article","mainEntityOfPage":"https:\/\/www.candid.cz\/nepotrebne-znalosti\/","headline":"Nepot\u0159ebn\u00e9 znalosti?","name":"Nepot\u0159ebn\u00e9 znalosti?","description":"Inu, to je pravda. Sp\u00ed\u0161e lze d\u00edvku zaujmout vypr\u00e1v\u011bn\u00edm o stavu sv\u00e9ho \u00fa\u010dtu, tedy pokud se m\u00e1te \u010d\u00edm chlubit, nebo tak\u00e9 o sv\u00e9m aut\u011b. Nu, ale tam u\u017e se ocel vyskytuje, stejn\u011b jako oby\u010dejn\u00e9 \u017eelezo nebo um\u011bl\u00e1 hmota. Je pravda, \u017ee t\u00e9ma metalurgie nen\u00ed nijak moc zaj\u00edmav\u00e9 a \u017ee jej","datePublished":"2024-11-27","dateModified":"2024-11-27","author":{"@type":"Person","@id":"https:\/\/www.candid.cz\/author\/#Person","name":"","url":"https:\/\/www.candid.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/2a487990a452554e9d027cbab96c6e6e6d3b119f22a2b3fb9e2bcb7e021cd643?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/2a487990a452554e9d027cbab96c6e6e6d3b119f22a2b3fb9e2bcb7e021cd643?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"candid.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.candid.cz\/wp-content\/uploads\/ball-bearing-1958083_640_1.jpg","url":"https:\/\/www.candid.cz\/wp-content\/uploads\/ball-bearing-1958083_640_1.jpg","height":0,"width":0},"url":"https:\/\/www.candid.cz\/nepotrebne-znalosti\/","about":["Nakupov\u00e1n\u00ed"],"wordCount":429,"articleBody":"   Inu, to je pravda. Sp\u00ed\u0161e lze d\u00edvku zaujmout vypr\u00e1v\u011bn\u00edm o stavu sv\u00e9ho \u00fa\u010dtu, tedy pokud se m\u00e1te \u010d\u00edm chlubit, nebo tak\u00e9 o sv\u00e9m aut\u011b. Nu, ale tam u\u017e se ocel vyskytuje, stejn\u011b jako oby\u010dejn\u00e9 \u017eelezo nebo um\u011bl\u00e1 hmota. Je pravda, \u017ee t\u00e9ma metalurgie nen\u00ed nijak moc zaj\u00edmav\u00e9 a \u017ee jej tedy nelze pou\u017e\u00edt ke v\u0161eobecn\u00e9 z\u00e1bav\u011b na ve\u010d\u00edrku. Ale zase nen\u00ed na \u0161kodu v\u011bd\u011bt, \u017ee nap\u0159\u00edklad na rozp\u011brn\u00e9 kotou\u010de se pou\u017e\u00edv\u00e1 lo\u017eiskov\u00e1 ocel. A nejen na n\u011b. Tak\u00e9 na h\u0159\u00eddele, nebo p\u0159\u00edmo na lo\u017eiska, jak ostatn\u011b z n\u00e1zvu plyne. Tato ocel m\u00e1 toti\u017e velmi zaj\u00edmav\u00e9 vlastnosti. P\u0159edev\u0161\u00edm je hodn\u011b kvalitn\u00ed, pr\u00e1v\u011b proto se j\u00ed \u0159\u00edk\u00e1 lo\u017eiskov\u00e1, a pr\u00e1v\u011b proto se na n\u011b pou\u017e\u00edv\u00e1. Je toti\u017e vysoce odoln\u00e1 proti opot\u0159eben\u00ed, co\u017e je vlastn\u011b z\u00e1sadn\u00ed krit\u00e9rium p\u0159i jej\u00edm v\u00fdb\u011bru. M\u00e1 v sob\u011b vy\u0161\u0161\u00ed obsah uhl\u00edku a nen\u00ed probl\u00e9m ji d\u00e1le kalit, \u010d\u00edm\u017e se to je\u0161t\u011b vylep\u0161\u00ed. Kalen\u00edm se rozum\u00ed zah\u0159\u00e1t\u00ed na vysokou teplotu a n\u00e1sledn\u00e9 prudk\u00e9 ochlazen\u00ed, nap\u0159\u00edklad ve studen\u00e9 vod\u011b. Na mali\u010dk\u00e9 sou\u010d\u00e1stky se pou\u017e\u00edv\u00e1 kal\u00edc\u00ed pec, kam se na dlouh\u00e9 \u201el\u017e\u00edci\u201c dod\u00e1 kalen\u00e9 zbo\u017e\u00ed a po ur\u010dit\u00e9m \u010dase, v\u011bt\u0161inou dvaceti minut\u00e1ch, se tyto vysypou p\u0159\u00edmo z pece do ledov\u00e9 vody, ve kter\u00e9 je um\u00edst\u011bn ko\u0161. Do n\u011bj v\u00fdrobky napadaj\u00ed a nechaj\u00ed se tam. Pot\u00e9 se vyt\u00e1hnou a putuj\u00ed do su\u0161\u00e1rny.U n\u00e1s se kup\u0159\u00edkladu k dosa\u017een\u00ed vysok\u00e9 teploty v kalic\u00ed peci pou\u017e\u00edval plyn. Kdy\u017e je potom tato ocel dovedena do k\u00fd\u017een\u00e9ho stavu, m\u016f\u017ee j\u00edt na dal\u0161\u00ed zpracov\u00e1n\u00ed, nebo rovnou do v\u00fdroby, kde se s n\u00ed p\u0159\u00edmo pracuje. Mo\u017enost\u00ed je nepo\u010d\u00edtan\u011b. Ur\u010dit\u011b jste se s v\u00fdrobky z tohoto materi\u00e1lu ji\u017e n\u011bkde setkali, ale nev\u00edte o tom. Pro\u010d tak\u00e9, nen\u00ed to nutn\u00e9. D\u016fle\u017eit\u00e9 je, \u017ee dob\u0159e slou\u017e\u00ed a \u017ee pln\u00ed to, co se od nich o\u010dek\u00e1v\u00e1. Maj\u00ed velkou v\u00fddr\u017e, tedy odborn\u011b asi trvanlivost jak v tahu, tak v tlaku, a proto se pou\u017e\u00edvaj\u00ed na spoust\u011b m\u00edst. A\u017e tedy budete n\u011bkdy dr\u017eet p\u0159i oprav\u011b sv\u00e9ho vozu lo\u017eisko, jist\u011b si m\u016f\u017eete vzpomenout na tento \u010dl\u00e1nek a jak toto lo\u017eisko vlastn\u011b vzniklo.                                                                                                                                                                                                                                                                                                                                                                                           4.4\/5 - (5 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Nepot\u0159ebn\u00e9 znalosti?","item":"https:\/\/www.candid.cz\/nepotrebne-znalosti\/#breadcrumbitem"}]}]