[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.dudel.cz\/zpracovani-kovu\/#Article","mainEntityOfPage":"https:\/\/www.dudel.cz\/zpracovani-kovu\/","headline":"Zpracov\u00e1n\u00ed kov\u016f","name":"Zpracov\u00e1n\u00ed kov\u016f","description":"Kov se opracov\u00e1v\u00e1 ji\u017e spoustu let, a za\u010dalo to nejsp\u00ed\u0161e zlatem. Pokra\u010dovalo se m\u011bdi. Metalurgie se roz\u0161\u00ed\u0159ila do cel\u00e9ho sv\u011bta … ","datePublished":"2019-12-21","dateModified":"2023-06-15","author":{"@type":"Person","@id":"https:\/\/www.dudel.cz\/author\/#Person","name":"","url":"https:\/\/www.dudel.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/774cfd57496a9f02284489749b4229073861faca9d8a66df7d65507a77c5d31f?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/774cfd57496a9f02284489749b4229073861faca9d8a66df7d65507a77c5d31f?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"dudel.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.dudel.cz\/wp-content\/uploads\/img_a369027_w1710_t1581320309.jpg","url":"https:\/\/www.dudel.cz\/wp-content\/uploads\/img_a369027_w1710_t1581320309.jpg","height":0,"width":0},"url":"https:\/\/www.dudel.cz\/zpracovani-kovu\/","wordCount":429,"articleBody":"        Kov se opracov\u00e1v\u00e1 ji\u017e spoustu let, a za\u010dalo to nejsp\u00ed\u0161e zlatem. Pokra\u010dovalo se m\u011bdi. Metalurgie se roz\u0161\u00ed\u0159ila do cel\u00e9ho sv\u011bta a pou\u017e\u00edv\u00e1n\u00ed kov\u016f a jejich zpracov\u00e1v\u00e1n\u00ed bylo dok\u00e1z\u00e1no v mnoha historick\u00fdch kultur\u00e1ch. V dne\u0161n\u00ed dob\u011b je ji\u017e zpracov\u00e1n\u00ed kov\u016f sofistikovan\u011bj\u0161\u00ed, ne\u017e v dob\u00e1ch p\u0159ed tis\u00edci let. Kovy se zpracov\u00e1vaj\u00ed za pomoc\u00ed lit\u00ed, kov\u00e1n\u00ed, studen\u00fdm tv\u00e1\u0159en\u00edm, v\u00e1lcov\u00e1n\u00edm, slinov\u00e1n\u00edm, obr\u00e1b\u011bn\u00edm, st\u0159\u00edh\u00e1n\u00edm nebo tv\u00e1\u0159en\u00edm. V\u0161echny tyto technologie zpracov\u00e1n\u00ed kov\u016f jsou st\u00e1le zdokonalov\u00e1ny a \u010d\u00edm d\u00e1l v\u00edce se vyu\u017e\u00edv\u00e1 modern\u00edch technologi\u00ed i v t\u00e9to oblasti v\u011bdy. Lit\u00ed \u2013 lit\u00ed kov\u016f se vyu\u017e\u00edv\u00e1 p\u0159edev\u0161\u00edm p\u0159i v\u00fdrob\u011b \u017eeleza a oceli a vyu\u017e\u00edv\u00e1 se p\u0159i n\u011bm p\u0159edev\u0161\u00edm p\u00edskov\u00fdch \u010di voskov\u00fdch forem. Technologi\u00ed je samoz\u0159ejm\u011b mnohem v\u00edce. Kov\u00e1n\u00ed \u2013 kov\u00e1\u0159sk\u00e9 \u0159emeslo je velice obl\u00edben\u00e9 ji\u017e spoustu let. Vyu\u017e\u00edv\u00e1 se p\u0159i n\u011bm vysok\u00e9 teploty, kdy je rozp\u00e1len\u00fd kov tvarov\u00e1n n\u00e1razy kladiva \u010di kovac\u00edho lisu. V\u00e1lcov\u00e1n\u00ed \u2013 jednoduch\u00e1 technika, kter\u00e1 spo\u010d\u00edv\u00e1 v lisov\u00e1n\u00ed kovu mezi dv\u011bma v\u00e1lci. Lze prov\u00e1d\u011bt jak s rozp\u00e1len\u00fdm, tak s chladn\u00fdm kovem. Kovoobr\u00e1b\u011bn\u00ed \u2013 obr\u00e1b\u011bn\u00ed kov\u016f je \u010dasto vyu\u017e\u00edv\u00e1n v modern\u00edch technologi\u00edch, kdy je vyu\u017e\u00edv\u00e1no kovoobr\u00e1b\u011bc\u00edch stroj\u016f, jako jsou soustruhy, fr\u00e9zy \u010di vrta\u010dky. Pou\u017e\u00edv\u00e1 se tak\u00e9 velk\u00e9 mno\u017estv\u00ed dal\u0161\u00edch n\u00e1stroj\u016f, jako jsou nap\u0159\u00edklad b\u0159ity, pop\u0159\u00edpad\u011b protahovac\u00ed trn https:\/\/www.i-nastroje.cz\/protahovaci-trny. Lisov\u00e1n\u00ed \u2013 lisov\u00e1n\u00ed je jednou z technik, kter\u00e1 pracuje s kovem za studena. Za pomoc\u00ed lisu \u010di bucharu se kov lisuje. Kalen\u00ed a cementov\u00e1n\u00ed \u2013 technologie, kter\u00e9 p\u0159edev\u0161\u00edm zvy\u0161uj\u00ed tvrdost, ale pro zm\u011bnu zvy\u0161uj\u00ed k\u0159ehkost materi\u00e1lu. Zpracov\u00e1n\u00ed kov\u016f se v sou\u010dasn\u00e9 dob\u011b st\u00e1le zdokonaluje a to p\u0159edev\u0161\u00edm kv\u016fli d\u016fle\u017eit\u00fdm technologi\u00edm, kter\u00e9 pot\u0159ebuj\u00ed kovy. Velk\u00e9 mno\u017estv\u00ed kov\u016f se vyu\u017e\u00edv\u00e1 ve stavebnictv\u00ed, stroj\u00edrenstv\u00ed, automobilov\u00e9m pr\u016fmyslu ale t\u0159eba i p\u0159i tvorb\u011b po\u010d\u00edta\u010dov\u00e9 a mobiln\u00ed techniky. Kovy nalezneme v podstat\u011b skoro v\u0161ude a bez jejich zpracov\u00e1v\u00e1n\u00ed bychom na tom byli h\u016f\u0159e, ne\u017e na\u0161i p\u0159edkov\u00e9 p\u0159ed tis\u00edci lety.                                                                                                                                                                                                                                                                                                                                                                                                  "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Zpracov\u00e1n\u00ed kov\u016f","item":"https:\/\/www.dudel.cz\/zpracovani-kovu\/#breadcrumbitem"}]}]