[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.mylifestyle.cz\/historie-zpracovani-zeleza\/#Article","mainEntityOfPage":"https:\/\/www.mylifestyle.cz\/historie-zpracovani-zeleza\/","headline":"Historie zpracov\u00e1n\u00ed \u017eeleza","name":"Historie zpracov\u00e1n\u00ed \u017eeleza","description":"Jedn\u00edm z nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00edch a nejvyu\u017e\u00edvan\u011bj\u0161\u00edch kov\u016f na na\u0161\u00ed planet\u011b je \u017eelezo. V\u011bdci p\u0159edpokl\u00e1daj\u00ed, \u017ee i zemsk\u00e9 j\u00e1dro je tvo\u0159eno zejm\u00e9na \u017eelezem. Historie objevu \u017eeleza spad\u00e1 do d\u00e1vn\u00e9 historie. A to a\u017e do doby t\u0159\u00ed tis\u00edc let p\u0159ed na\u0161\u00edm letopo\u010dtem. Objev \u017eeleza je p\u0159i\u010d\u00edt\u00e1n Chetit\u016fm. Ti se ale sna\u017eili p\u0159ed sv\u011btem sv\u016fj objev utajit. Nepoda\u0159ilo se a […]","datePublished":"2021-06-05","dateModified":"2023-04-28","author":{"@type":"Person","@id":"https:\/\/www.mylifestyle.cz\/author\/devene\/#Person","name":"devene","url":"https:\/\/www.mylifestyle.cz\/author\/devene\/","identifier":2,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/f17e51fc588a8d58b22312b5abcc2141?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/f17e51fc588a8d58b22312b5abcc2141?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"mylifestyle.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"url":"https:\/\/www.mylifestyle.cz\/historie-zpracovani-zeleza\/","about":["Technologie"],"wordCount":452,"articleBody":"Jedn\u00edm z nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00edch a nejvyu\u017e\u00edvan\u011bj\u0161\u00edch kov\u016f na na\u0161\u00ed planet\u011b je \u017eelezo. V\u011bdci p\u0159edpokl\u00e1daj\u00ed, \u017ee i zemsk\u00e9 j\u00e1dro je tvo\u0159eno zejm\u00e9na \u017eelezem. Historie objevu \u017eeleza spad\u00e1 do d\u00e1vn\u00e9 historie. A to a\u017e do doby t\u0159\u00ed tis\u00edc let p\u0159ed na\u0161\u00edm letopo\u010dtem.\t\tObjev \u017eeleza je p\u0159i\u010d\u00edt\u00e1n Chetit\u016fm.\t\tTi se ale sna\u017eili p\u0159ed sv\u011btem sv\u016fj objev utajit.\t\tNepoda\u0159ilo se a po rozpadu \u0159\u00ed\u0161e Chetit\u016f se jeho v\u00fdroba roz\u0161\u00ed\u0159ila do dal\u0161\u00edch zem\u00ed.\u017deleznou rudu Chetit\u00e9 tavili v m\u011blk\u00fdch j\u00e1m\u00e1ch, ze kter\u00fdch postupem \u010dasu vznikaly mal\u00e9 \u0161achtov\u00e9 pece. Od nich u\u017e byl v novov\u011bku jen kr\u016f\u010dek ke klasick\u00fdm vysok\u00fdm pec\u00edm.\t\tZlom ve v\u00fdrob\u011b \u017eeleza nastal ve chv\u00edli, kdy bylo jako reduk\u010dn\u00ed \u010dinidlo nahrazeno d\u0159ev\u011bn\u00e9 uhl\u00ed koksem.\t\tTento p\u0159elom nastal v 18. stolet\u00ed.\tSou\u010dasn\u00e9 zpracov\u00e1n\u00ed \u017eelezn\u00e9 rudyV sou\u010dasn\u00e9 dob\u011b se \u017eelezo vyr\u00e1b\u00ed vysokoteplotn\u00ed redukc\u00ed \u017eelezn\u00e9 rudy, kter\u00e1 prob\u00edh\u00e1 pr\u00e1v\u011b ve vysok\u00fdch pec\u00edch. Pro zpracov\u00e1n\u00ed \u017eeleza se vyu\u017e\u00edvaj\u00ed \u017eelezn\u00e9 rudy s r\u016fzn\u00fdm pod\u00edlem \u017eeleza.\t\tKovnatost horniny by m\u011bla b\u00fdt alespo\u0148 25 %, jinak je v\u00fdroba ztr\u00e1tov\u00e1.\t\tPro zpracov\u00e1n\u00ed se tedy nejv\u00edce vyu\u017e\u00edv\u00e1 krevel a magnetit.To, co nen\u00ed kov, se naz\u00fdv\u00e1 hlu\u0161inou a po taven\u00ed je z n\u00ed vytvo\u0159ena struska.\t\tStruska m\u00e1 dva z\u00e1sadn\u00ed \u00fakoly. \t\t\t\tV\u00e1\u017ee do sebe hlu\u0161inu z \u017eelezn\u00e9 rudy.\t\t\t\tChr\u00e1n\u00ed samotn\u00e9 \u017eelezo p\u0159ed hork\u00fd vzduchem p\u0159i taven\u00ed.\t\t\t\t\t\tHork\u00fd vzduch by mohl zp\u016fsobit oxidaci \u017eeleza.Palivem, kter\u00e9 se p\u0159i v\u00fdrob\u011b \u017eeleza vyu\u017e\u00edv\u00e1, je st\u00e1le koks, ale st\u00e1le v\u00edce ho nahrazuj\u00ed nebo dopl\u0148uj\u00ed dal\u0161\u00ed paliva.T\u011bmi jsou p\u0159edev\u0161\u00edm zemn\u00ed plyn, pr\u00e1\u0161kov\u00e9 uhl\u00ed nebo ropn\u00e9 frakce. O tom, \u017ee bylo \u017eelezo pro \u010dlov\u011bka skute\u010dn\u011b p\u0159evratn\u00fdm vyn\u00e1lezem, sv\u011bd\u010d\u00ed i to, \u017ee je cel\u00e1 jedna etapa pojmenov\u00e1na dobou \u017eeleznou. Je to doba, kdy lid\u00e9 za\u010dali \u017eelezo vyu\u017e\u00edvat p\u0159edev\u0161\u00edm na v\u00fdrobu zbran\u00ed a tak\u00e9 n\u00e1stroj\u016f pot\u0159ebn\u00fdch pro obd\u011bl\u00e1v\u00e1n\u00ed p\u016fdy a dal\u0161\u00ed zem\u011bd\u011blsk\u00e9 pr\u00e1ce.\t\tDobu \u017eeleznou nelze p\u0159esn\u011b specifikovat, proto\u017ee r\u016fzn\u00e9 n\u00e1rody za\u010daly vyu\u017e\u00edvat \u017eelezo v r\u016fzn\u00fdch etap\u00e1ch sv\u00e9ho v\u00fdvoje.                                                                                                                                                                                                                                                                                                                                                                                                                                                 Jak bude reklama vypadat? -           Kup si reklamu pod t\u00edmto \u010dl\u00e1nkem jen za 50 K\u010d      Zobrazit formul\u00e1\u0159 pro n\u00e1kup                      Odkaz:                     N\u00e1zev:                     Popisek:                    Follow Nofollow                                                     "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Historie zpracov\u00e1n\u00ed \u017eeleza","item":"https:\/\/www.mylifestyle.cz\/historie-zpracovani-zeleza\/#breadcrumbitem"}]}]