{"id":51,"date":"2017-07-04T10:40:53","date_gmt":"2017-07-04T10:40:53","guid":{"rendered":"http:\/\/oupic.cz\/?p=51"},"modified":"2025-09-08T11:55:52","modified_gmt":"2025-09-08T11:55:52","slug":"zarove-zinkovani-zinkpower-roudnice-s-r-o","status":"publish","type":"post","link":"https:\/\/oupic.cz\/?p=51","title":{"rendered":"Zinkovna Du\u0161n\u00edky"},"content":{"rendered":"\n\n<p class=\"p1\"><strong><span class=\"s1\">\u017d\u00e1rov\u00e9 zinkov\u00e1n\u00ed (povrchov\u00e1 \u00faprava oceli)<\/span><\/strong><\/p>\n<p class=\"p1\"><strong><span class=\"s1\">Co je \u017e\u00e1rov\u00e9 zinkov\u00e1n\u00ed?<\/span><\/strong><\/p>\n<p class=\"p2\"><span class=\"s2\">\u2013 Jde o modern\u00ed a nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00ed metodu ochrany ocelov\u00fdch d\u00edl\u016f proti korozi. Princip spo\u010d\u00edv\u00e1 v pono\u0159en\u00ed ocelov\u00e9ho d\u00edlu do vany s roztaven\u00fdm zinkem, co\u017e vytvo\u0159\u00ed pevn\u00fd povlak, kter\u00fd z\u00e1rove\u0148 katodicky chr\u00e1n\u00ed ocel. P\u0159esto\u017ee je cel\u00fd povrch pokryt, i d\u00edra v povlaku (nap\u0159. \u0161kr\u00e1banec) st\u00e1le umo\u017e\u0148uje ochranu d\u00edky elektrochemick\u00e9mu \u00fa\u010dinku <\/span><\/p>\n<p class=\"p1\"><strong><span class=\"s1\">V\u00fdhody \u017e\u00e1rov\u00e9ho zinkov\u00e1n\u00ed<\/span><\/strong><\/p>\n<ul class=\"ul1\">\n<li class=\"li2\"><span class=\"s4\">Odolnost v\u016f\u010di mechanick\u00e9mu po\u0161kozen\u00ed<\/span><span class=\"s2\"> je v\u00fdrazn\u011b vy\u0161\u0161\u00ed ne\u017e u b\u011b\u017en\u00fdch n\u00e1t\u011br\u016f <\/span><\/li>\n<li class=\"li2\"><span class=\"s4\">Katodick\u00e1 ochrana<\/span><span class=\"s2\"> zaji\u0161\u0165uje, \u017ee i p\u0159i po\u0161kozen\u00ed povrchu zinek chr\u00e1n\u00ed ocel p\u0159ed koroz\u00ed <\/span><\/li>\n<li class=\"li2\"><span class=\"s4\">Nem\u011bn\u00ed vlastnosti oceli<\/span><span class=\"s2\"> \u2013 materi\u00e1ln\u00ed vlastnosti z\u016fst\u00e1vaj\u00ed zachov\u00e1ny po proveden\u00ed zinkov\u00e1n\u00ed <\/span><\/li>\n<li class=\"li2\"><span class=\"s4\">Ekonomi\u010dnost a dlouh\u00e1 \u017eivotnost<\/span><span class=\"s2\"> \u2013 povlak nen\u00ed nutn\u00e9 po v\u011bt\u0161inu \u017eivotnosti v\u00fdrobku obnovovat, \u010d\u00edm\u017e se v\u00fdrazn\u011b sni\u017euj\u00ed n\u00e1klady <\/span><\/li>\n<li class=\"li2\"><span class=\"s4\">Snadn\u00e1 kontrola<\/span><span class=\"s2\"> \u2013 absence koroze pod povlakem umo\u017e\u0148uje snadn\u011bj\u0161\u00ed inspekci a \u00fadr\u017ebu <\/span><\/li>\n<\/ul>\n<p class=\"p1\"><strong><span class=\"s1\">Technologick\u00fd proces<\/span><\/strong><\/p>\n<p class=\"p2\"><span class=\"s2\">\u017d\u00e1rov\u00e9 zinkov\u00e1n\u00ed prob\u00edh\u00e1 ve form\u011b technologicky \u0159\u00edzen\u00e9ho procesu v n\u011bkolika f\u00e1z\u00edch:<\/span><\/p>\n<ol class=\"ol1\">\n<li class=\"li2\"><span class=\"s4\">P\u0159\u00edprava povrchu<\/span><span class=\"s2\"> \u2013 odma\u0161t\u011bn\u00ed, mo\u0159en\u00ed (kysel\u00e1 \u00faprava), oplach \u2013 d\u016fle\u017eit\u00fd krok pro zaji\u0161t\u011bn\u00ed p\u0159ilnavosti povlaku. <\/span><\/li>\n<li class=\"li2\"><span class=\"s4\">Zinkovac\u00ed proces<\/span><span class=\"s2\"> \u2013 pono\u0159en\u00ed d\u00edl\u016f do roztaven\u00e9ho zinku, kde vznik\u00e1 chemick\u00e1 reakce s povrchem oceli.<\/span><\/li>\n<li class=\"li2\"><span class=\"s4\">Ods\u00e1v\u00e1n\u00ed exhal\u00e1t\u016f<\/span><span class=\"s2\"> \u2013 od mo\u0159ic\u00edch a odma\u0161\u0165ovac\u00edch l\u00e1zn\u00ed se mus\u00ed ods\u00e1vat kysel\u00e9 v\u00fdpary (nap\u0159. chlorovod\u00edk), \u010dasto pomoc\u00ed absorb\u00e9r\u016f a filtr\u016f. <\/span><\/li>\n<li class=\"li2\"><span class=\"s4\">Bezpe\u010dnostn\u00ed opat\u0159en\u00ed<\/span><span class=\"s2\"> \u2013 zinkovan\u00e9 v\u00fdrobky s uzav\u0159en\u00fdmi dutinami mohou p\u0159edstavovat riziko v\u00fdbuchu p\u0159i zah\u0159\u00e1t\u00ed v l\u00e1zni. Je nutn\u00e9 zajistit dobr\u00e9 odv\u011btr\u00e1n\u00ed nebo p\u0159id\u00e1n\u00ed dren\u00e1\u017en\u00edch otvor\u016f <\/span><\/li>\n<\/ol>\n<p class=\"p1\"><strong><span class=\"s1\">Rozm\u011bry a kapacita za\u0159\u00edzen\u00ed Zinkovny Du\u0161n\u00edky<\/span><\/strong><\/p>\n<ul class=\"ul1\">\n<li class=\"li2\"><span class=\"s2\">Maxim\u00e1ln\u00ed vnit\u0159n\u00ed rozm\u011bry vany: d\u00e9lka cca 4,3 m \u00d7 hloubka 2,2 m \u00d7 \u0161\u00ed\u0159ka 1,3 m (v\u011bt\u0161\u00ed rozm\u011bry mo\u017en\u00e9 po dohod\u011b) <\/span><\/li>\n<li class=\"li2\"><span class=\"s2\">Kapacita hale (podle dokumentace z roku 2010): denn\u00ed pozinkov\u00e1n\u00ed max. 14,4 t, hodinov\u00e1 kapacita 1,8 t, ro\u010dn\u00ed zinkovan\u00e1 plocha cca 390 000 m\u00b2, kovoobr\u00e1b\u011bc\u00ed kapacita cca 2,5 t denn\u011b. <\/span><\/li>\n<\/ul>\n<p class=\"p1\"><strong><span class=\"s1\">Pr\u016fmyslov\u00e9 vyu\u017eit\u00ed zinku<\/span><\/strong><\/p>\n<ul class=\"ul1\">\n<li class=\"li2\"><span class=\"s4\">Glob\u00e1ln\u011b<\/span><span class=\"s2\">: Hlavn\u00ed vyu\u017eit\u00ed zinku:<\/span>\n<ul class=\"ul1\">\n<li class=\"li2\"><span class=\"s2\">Pozinkov\u00e1n\u00ed \u2013 cca 47 %<\/span><\/li>\n<li class=\"li2\"><span class=\"s2\">V\u00fdroba slitin (nap\u0159. mosazi) \u2013 cca 19 %<\/span><\/li>\n<li class=\"li2\"><span class=\"s2\">Odlitky \u2013 cca 14 %<\/span><\/li>\n<li class=\"li2\"><span class=\"s2\">V\u00e1lcovan\u00fd materi\u00e1l pro stavebnictv\u00ed a baterie \u2013 cca 7 % <\/span><\/li>\n<\/ul>\n<\/li>\n<li class=\"li2\"><span class=\"s4\">V \u010cR<\/span><span class=\"s2\">: Zinkov\u00e9 rudy (zejm\u00e9na sfalerit) poch\u00e1zej\u00ed z polymetalick\u00fdch lo\u017eisek a dal\u0161\u00edch zdroj\u016f. Lo\u017eiskov\u00e9 z\u00e1soby ve sv\u011bt\u011b odhadov\u00e1ny na cca 144 milion\u016f tun. <\/span><\/li>\n<\/ul>\n<p class=\"p1\"><strong><span class=\"s1\">Podnikov\u00fd profil Zinkovny Du\u0161n\u00edky<\/span><\/strong><\/p>\n<ul class=\"ul1\">\n<li class=\"li2\"><span class=\"s2\">Spole\u010dnost provozuje \u017e\u00e1rov\u00e9 zinkov\u00e1n\u00ed v lokalit\u011b Du\u0161n\u00edky \u2013 \u010d\u00e1st obce spadaj\u00edc\u00ed do \u00dasteck\u00e9ho kraje \u2013 pod z\u00e1\u0161titou Kovoobr\u00e1b\u011bn\u00ed Neschner s.r.o. <\/span><\/li>\n<li class=\"li2\"><span class=\"s2\">V are\u00e1lu byla pl\u00e1nov\u00e1na v\u00fdstavba v\u00fdrobn\u00ed haly s administrativn\u00edm z\u00e1zem\u00edm pro kovoobr\u00e1b\u011bn\u00ed a zinkov\u00e1n\u00ed. Informace o projektov\u00fdch kapacit\u00e1ch poch\u00e1z\u00ed z roku 2010, kdy byla dokumentace p\u0159edkl\u00e1d\u00e1na k posouzen\u00ed v r\u00e1mci vlivu na \u017eivotn\u00ed prost\u0159ed\u00ed. <\/span><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>\u017d\u00e1rov\u00e9 zinkov\u00e1n\u00ed (povrchov\u00e1 \u00faprava oceli) Co je \u017e\u00e1rov\u00e9 zinkov\u00e1n\u00ed? \u2013 Jde o modern\u00ed a nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00ed metodu ochrany ocelov\u00fdch d\u00edl\u016f proti korozi. Princip spo\u010d\u00edv\u00e1 v pono\u0159en\u00ed ocelov\u00e9ho d\u00edlu do vany s roztaven\u00fdm zinkem, co\u017e vytvo\u0159\u00ed pevn\u00fd povlak, kter\u00fd z\u00e1rove\u0148 katodicky chr\u00e1n\u00ed ocel. P\u0159esto\u017ee je cel\u00fd povrch pokryt, i d\u00edra v povlaku (nap\u0159. \u0161kr\u00e1banec) st\u00e1le umo\u017e\u0148uje ochranu<a class=\"moretag\" href=\"https:\/\/oupic.cz\/?p=51\"><span class=\"screen-reader-text\">P\u0159e\u010dt\u011bte si v\u00edce o Zinkovna Du\u0161n\u00edky<\/span>[&#8230;]<\/a><\/p>\n","protected":false},"author":2,"featured_media":75,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/oupic.cz\/index.php?rest_route=\/wp\/v2\/posts\/51"}],"collection":[{"href":"https:\/\/oupic.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oupic.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oupic.cz\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/oupic.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=51"}],"version-history":[{"count":10,"href":"https:\/\/oupic.cz\/index.php?rest_route=\/wp\/v2\/posts\/51\/revisions"}],"predecessor-version":[{"id":498,"href":"https:\/\/oupic.cz\/index.php?rest_route=\/wp\/v2\/posts\/51\/revisions\/498"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oupic.cz\/index.php?rest_route=\/wp\/v2\/media\/75"}],"wp:attachment":[{"href":"https:\/\/oupic.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=51"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oupic.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=51"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oupic.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=51"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}