{"id":63256,"date":"2022-07-10T09:47:35","date_gmt":"2022-07-10T14:47:35","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/ultrasonic-cleaning-of-rusted-metals\/"},"modified":"2025-01-27T06:15:39","modified_gmt":"2025-01-27T11:15:39","slug":"ultrasonic-cleaning-of-rusted-metals","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/ultrasonic-cleaning-of-rusted-metals\/","title":{"rendered":"Ultrazvukov\u00e9 \u010di\u0161t\u011bn\u00ed zreziv\u011bl\u00fdch kov\u016f: efektivn\u00ed metoda"},"content":{"rendered":"<p>Ultrazvukov\u00e9 \u010di\u0161t\u011bn\u00ed je efektivn\u00ed metoda odstra\u0148ov\u00e1n\u00ed rzi z kovov\u00fdch p\u0159edm\u011bt\u016f, kter\u00e1 vyu\u017e\u00edv\u00e1 vysokofrekven\u010dn\u00ed zvukov\u00e9 vlny k uvoln\u011bn\u00ed a odstran\u011bn\u00ed zne\u010di\u0161t\u011bn\u00ed.  Tento proces je \u0161etrn\u011bj\u0161\u00ed k materi\u00e1lu ne\u017e tradi\u010dn\u00ed mechanick\u00e9 metody, jako je kart\u00e1\u010dov\u00e1n\u00ed nebo brou\u0161en\u00ed, a umo\u017e\u0148uje \u010di\u0161t\u011bn\u00ed i slo\u017eit\u011b tvarovan\u00fdch sou\u010d\u00e1st\u00ed.  V\u00fdhodou je i relativn\u011b rychl\u00e1 doba \u010di\u0161t\u011bn\u00ed a mo\u017enost automatizace procesu. Nicm\u00e9n\u011b, efektivita ultrazvukov\u00e9ho \u010di\u0161t\u011bn\u00ed z\u00e1vis\u00ed na n\u011bkolika faktorech, kter\u00e9 je pot\u0159eba pe\u010dliv\u011b zv\u00e1\u017eit pro dosa\u017een\u00ed optim\u00e1ln\u00edch v\u00fdsledk\u016f.<\/p>\n<p>Princip ultrazvukov\u00e9ho \u010di\u0161t\u011bn\u00ed zreziv\u011bl\u00fdch kov\u016f<\/p>\n<p>Ultrazvukov\u00e9 \u010di\u0161t\u011bn\u00ed funguje na principu kavitace.  V ultrazvukov\u00e9m k\u00fapeli doch\u00e1z\u00ed k vytv\u00e1\u0159en\u00ed a implozi mikroskopick\u00fdch bublin v \u010distic\u00ed kapalin\u011b.  Tyto imploze vytv\u00e1\u0159ej\u00ed mikroskopick\u00e9 r\u00e1zy, kter\u00e9 uvol\u0148uj\u00ed \u010d\u00e1stice rzi z povrchu kovu.  Intenzita kavitace z\u00e1vis\u00ed na frekvenci a amplitud\u011b ultrazvukov\u00fdch vln, stejn\u011b jako na vlastnostech \u010distic\u00ed kapaliny a samotn\u00e9ho kovu.  Pro \u010di\u0161t\u011bn\u00ed rzi se \u010dasto pou\u017e\u00edvaj\u00ed vodn\u00e9 roztoky s p\u0159\u00eddavkem \u010distic\u00edch aditiv, kter\u00e9 zvy\u0161uj\u00ed efektivitu procesu.  Vhodn\u00e1 volba \u010distic\u00ed kapaliny je kl\u00ed\u010dov\u00e1 pro \u00fasp\u011b\u0161n\u00e9 odstran\u011bn\u00ed rzi bez po\u0161kozen\u00ed samotn\u00e9ho kovu.<\/p>\n<p>Volba \u010distic\u00ed kapaliny<\/p>\n<p>V\u00fdb\u011br spr\u00e1vn\u00e9 \u010distic\u00ed kapaliny je kritick\u00fd pro efektivitu ultrazvukov\u00e9ho \u010di\u0161t\u011bn\u00ed.  R\u016fzn\u00e9 kapaliny maj\u00ed r\u016fzn\u00e9 vlastnosti a jejich vhodnost z\u00e1vis\u00ed na typu kovu a stupni zreziv\u011bn\u00ed.  N\u00e1sleduj\u00edc\u00ed tabulka shrnuje n\u011bkter\u00e9 b\u011b\u017en\u011b pou\u017e\u00edvan\u00e9 kapaliny a jejich vlastnosti:<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>\u010cistic\u00ed kapalina<\/th>\n<th>V\u00fdhody<\/th>\n<th>Nev\u00fdhody<\/th>\n<th>Vhodn\u00e1 pro<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Voda s detergentem<\/td>\n<td>Levn\u00e1, snadno dostupn\u00e1<\/td>\n<td>M\u00e9n\u011b efektivn\u00ed u siln\u00e9 rzi<\/td>\n<td>Lehce zreziv\u011bl\u00e9 kovy<\/td>\n<\/tr>\n<tr>\n<td>Vodn\u00fd roztok alkalick\u00fdch \u010distic\u00edch prost\u0159edk\u016f<\/td>\n<td>Efektivn\u011bj\u0161\u00ed ne\u017e voda s detergentem<\/td>\n<td>M\u016f\u017ee b\u00fdt korozivn\u00ed<\/td>\n<td>St\u0159edn\u011b zreziv\u011bl\u00e9 kovy<\/td>\n<\/tr>\n<tr>\n<td>Speci\u00e1ln\u00ed \u010distic\u00ed roztoky pro kovy<\/td>\n<td>Vysok\u00e1 \u00fa\u010dinnost, \u0161etrn\u00e9 k kovu<\/td>\n<td>Drah\u00e9<\/td>\n<td>Siln\u011b zreziv\u011bl\u00e9 kovy<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Parametry ultrazvukov\u00e9ho \u010di\u0161t\u011bn\u00ed<\/p>\n<p>Efektivita ultrazvukov\u00e9ho \u010di\u0161t\u011bn\u00ed z\u00e1vis\u00ed na n\u011bkolika parametrech, kter\u00e9 je nutn\u00e9 optimalizovat pro dosa\u017een\u00ed nejlep\u0161\u00edch v\u00fdsledk\u016f.  Kl\u00ed\u010dov\u00e9 parametry zahrnuj\u00ed:<\/p>\n<ul>\n<li><strong>Frekvence:<\/strong>  Obvykle se pou\u017e\u00edvaj\u00ed frekvence v rozsahu 20-40 kHz.  Ni\u017e\u0161\u00ed frekvence jsou efektivn\u011bj\u0161\u00ed pro odstran\u011bn\u00ed siln\u00e9 rzi, zat\u00edmco vy\u0161\u0161\u00ed frekvence jsou vhodn\u011bj\u0161\u00ed pro jemn\u011bj\u0161\u00ed \u010di\u0161t\u011bn\u00ed.<\/li>\n<li><strong>Amplituda:<\/strong>  Vy\u0161\u0161\u00ed amplituda vede k siln\u011bj\u0161\u00ed kavitaci, ale m\u016f\u017ee tak\u00e9 po\u0161kodit citliv\u00e9 kovy.<\/li>\n<li><strong>Doba \u010di\u0161t\u011bn\u00ed:<\/strong>  Doba \u010di\u0161t\u011bn\u00ed z\u00e1vis\u00ed na stupni zne\u010di\u0161t\u011bn\u00ed a typu kovu.<\/li>\n<li><strong>Teplota:<\/strong>  Zv\u00fd\u0161en\u00ed teploty \u010distic\u00ed kapaliny obvykle zvy\u0161uje efektivitu \u010di\u0161t\u011bn\u00ed.<\/li>\n<\/ul>\n<p>P\u0159\u00edprava p\u0159ed \u010di\u0161t\u011bn\u00edm a n\u00e1sledn\u00e1 \u00fadr\u017eba<\/p>\n<p>P\u0159ed samotn\u00fdm \u010di\u0161t\u011bn\u00edm je d\u016fle\u017eit\u00e9 kovov\u00e9 p\u0159edm\u011bty d\u016fkladn\u011b o\u010distit od hrub\u00fdch ne\u010distot.  Po ultrazvukov\u00e9m \u010di\u0161t\u011bn\u00ed je nutn\u00e9 p\u0159edm\u011bty opl\u00e1chnout \u010distou vodou a d\u016fkladn\u011b vysu\u0161it, aby se zabr\u00e1nilo op\u011btovn\u00e9 korozi.  Pravideln\u00e1 \u00fadr\u017eba ultrazvukov\u00e9ho \u010disti\u010de, jako je \u010di\u0161t\u011bn\u00ed n\u00e1dr\u017ee a v\u00fdm\u011bna \u010distic\u00ed kapaliny, je nezbytn\u00e1 pro udr\u017een\u00ed jeho efektivity a \u017eivotnosti.<\/p>\n<p>Ultrazvukov\u00e9 \u010di\u0161t\u011bn\u00ed p\u0159edstavuje efektivn\u00ed a \u0161etrnou metodu odstra\u0148ov\u00e1n\u00ed rzi z kovov\u00fdch p\u0159edm\u011bt\u016f.  Spr\u00e1vn\u00fd v\u00fdb\u011br \u010distic\u00ed kapaliny a optimalizace parametr\u016f \u010di\u0161t\u011bn\u00ed jsou kl\u00ed\u010dov\u00e9 pro dosa\u017een\u00ed optim\u00e1ln\u00edch v\u00fdsledk\u016f.  Dodr\u017eov\u00e1n\u00ed spr\u00e1vn\u00e9 p\u0159\u00edpravy a n\u00e1sledn\u00e9 \u00fadr\u017eby zaru\u010duje dlouhou \u017eivotnost a efektivn\u00ed fungov\u00e1n\u00ed ultrazvukov\u00e9ho \u010disti\u010de.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ultrazvukov\u00e9 \u010di\u0161t\u011bn\u00ed je efektivn\u00ed metoda odstra\u0148ov\u00e1n\u00ed rzi z kovov\u00fdch p\u0159edm\u011bt\u016f, kter\u00e1 vyu\u017e\u00edv\u00e1 vysokofrekven\u010dn\u00ed zvukov\u00e9 vlny k uvoln\u011bn\u00ed a odstran\u011bn\u00ed zne\u010di\u0161t\u011bn\u00ed. Tento proces je \u0161etrn\u011bj\u0161\u00ed k materi\u00e1lu ne\u017e tradi\u010dn\u00ed mechanick\u00e9 metody, jako je kart\u00e1\u010dov\u00e1n\u00ed nebo brou\u0161en\u00ed, a umo\u017e\u0148uje \u010di\u0161t\u011bn\u00ed i slo\u017eit\u011b tvarovan\u00fdch sou\u010d\u00e1st\u00ed. V\u00fdhodou je i relativn\u011b rychl\u00e1 doba \u010di\u0161t\u011bn\u00ed a mo\u017enost automatizace procesu. Nicm\u00e9n\u011b, efektivita<\/p>\n","protected":false},"author":1,"featured_media":18689,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-63256","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/63256","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/comments?post=63256"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/63256\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/18689"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=63256"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=63256"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=63256"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}