{"id":62661,"date":"2022-10-12T03:50:55","date_gmt":"2022-10-12T08:50:55","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/can-ultrasonic-cleaners-clean-blind-holes-of-objects\/"},"modified":"2025-01-27T06:02:07","modified_gmt":"2025-01-27T11:02:07","slug":"can-ultrasonic-cleaners-clean-blind-holes-of-objects","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/can-ultrasonic-cleaners-clean-blind-holes-of-objects\/","title":{"rendered":"Ultrazvukov\u00e9 \u010di\u0161t\u011bn\u00ed slep\u00fdch d\u011br: Mo\u017enosti a limity"},"content":{"rendered":"<p>Ultrazvukov\u00e9 \u010di\u0161t\u011bn\u00ed je efektivn\u00ed metoda pro odstra\u0148ov\u00e1n\u00ed ne\u010distot z r\u016fzn\u00fdch materi\u00e1l\u016f a povrch\u016f.  Ot\u00e1zka, zda dok\u00e1\u017ee efektivn\u011b vy\u010distit i slep\u00e9 otvory, je v\u0161ak komplexn\u011bj\u0161\u00ed a z\u00e1vis\u00ed na n\u011bkolika faktorech.  Tento \u010dl\u00e1nek se podrobn\u011bji zam\u011b\u0159\u00ed na tuto problematiku.<\/p>\n<h3>Hloubka a geometrie slep\u00e9ho otvoru<\/h3>\n<p>Hloubka slep\u00e9ho otvoru je kl\u00ed\u010dov\u00fdm faktorem ovliv\u0148uj\u00edc\u00edm \u00fa\u010dinnost ultrazvukov\u00e9ho \u010di\u0161t\u011bn\u00ed.  \u010c\u00edm je otvor hlub\u0161\u00ed, t\u00edm obt\u00ed\u017en\u011bj\u0161\u00ed je pro ultrazvukov\u00e9 vlny dos\u00e1hnout jeho dna a efektivn\u011b odstranit ne\u010distoty.  Geometrie otvoru, jako je nap\u0159\u00edklad jeho pr\u016fm\u011br a tvar, tak\u00e9 hraje roli. \u00dazk\u00e9 a hlubok\u00e9 otvory p\u0159edstavuj\u00ed v\u011bt\u0161\u00ed v\u00fdzvu ne\u017e \u0161ir\u0161\u00ed a m\u011bl\u010d\u00ed.  Ultrazvukov\u00e9 vlny se v \u00fazk\u00fdch prostorech m\u00e9n\u011b efektivn\u011b \u0161\u00ed\u0159\u00ed a mohou se odr\u00e1\u017eet od st\u011bn, \u010d\u00edm\u017e se sni\u017euje jejich \u010distic\u00ed \u00fa\u010dinnost.<\/p>\n<h3>Frekvence a intenzita ultrazvuku<\/h3>\n<p>Frekvence ultrazvukov\u00e9ho gener\u00e1toru ovliv\u0148uje hloubku penetrace ultrazvukov\u00fdch vln. Vy\u0161\u0161\u00ed frekvence generuj\u00ed krat\u0161\u00ed vlnov\u00e9 d\u00e9lky, kter\u00e9 l\u00e9pe pronikaj\u00ed do men\u0161\u00edch otvor\u016f a \u0161t\u011brbin, ale jejich \u010distic\u00ed s\u00edla m\u016f\u017ee b\u00fdt men\u0161\u00ed. Naopak ni\u017e\u0161\u00ed frekvence nab\u00edzej\u00ed siln\u011bj\u0161\u00ed \u010distic\u00ed \u00fa\u010dinek, ale jejich penetrace do hlubok\u00fdch otvor\u016f m\u016f\u017ee b\u00fdt omezen\u00e1.  Intenzita ultrazvuku, m\u011b\u0159en\u00e1 v wattech na centimetr \u010dtvere\u010dn\u00ed (W\/cm\u00b2), ur\u010duje s\u00edlu \u010distic\u00edho procesu.  Vy\u0161\u0161\u00ed intenzita je obecn\u011b efektivn\u011bj\u0161\u00ed, ale je t\u0159eba db\u00e1t na to, aby nedo\u0161lo k po\u0161kozen\u00ed \u010di\u0161t\u011bn\u00e9ho materi\u00e1lu.<\/p>\n<h3>\u010cistic\u00ed kapalina<\/h3>\n<p>Volba vhodn\u00e9 \u010distic\u00ed kapaliny je kritick\u00e1 pro \u00fasp\u011b\u0161n\u00e9 \u010di\u0161t\u011bn\u00ed slep\u00fdch otvor\u016f. Kapalina mus\u00ed b\u00fdt kompatibiln\u00ed s \u010di\u0161t\u011bn\u00fdm materi\u00e1lem a mus\u00ed m\u00edt dostate\u010dnou viskozitu, aby pronikla do otvoru a odstranila ne\u010distoty.  Pou\u017eit\u00ed vhodn\u00e9 kapaliny m\u016f\u017ee v\u00fdznamn\u011b zlep\u0161it efektivitu ultrazvukov\u00e9ho \u010di\u0161t\u011bn\u00ed, zvl\u00e1\u0161t\u011b v p\u0159\u00edpad\u011b hlubok\u00fdch a \u00fazk\u00fdch otvor\u016f.<\/p>\n<h3>Tabulka srovn\u00e1n\u00ed parametr\u016f ultrazvukov\u00e9ho \u010di\u0161t\u011bn\u00ed slep\u00fdch otvor\u016f:<\/h3>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Parametr<\/th>\n<th>N\u00edzk\u00e1 efektivita<\/th>\n<th>St\u0159edn\u00ed efektivita<\/th>\n<th>Vysok\u00e1 efektivita<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Hloubka otvoru<\/td>\n<td>&gt; 10 cm<\/td>\n<td>5-10 cm<\/td>\n<td>&lt; 5 cm<\/td>\n<\/tr>\n<tr>\n<td>Pr\u016fm\u011br otvoru<\/td>\n<td>&lt; 2 mm<\/td>\n<td>2-5 mm<\/td>\n<td>&gt; 5 mm<\/td>\n<\/tr>\n<tr>\n<td>Frekvence ultrazvuku<\/td>\n<td>20 kHz<\/td>\n<td>40 kHz<\/td>\n<td>80 kHz<\/td>\n<\/tr>\n<tr>\n<td>Intenzita ultrazvuku<\/td>\n<td>&lt; 5 W\/cm\u00b2<\/td>\n<td>5-10 W\/cm\u00b2<\/td>\n<td>&gt; 10 W\/cm\u00b2<\/td>\n<\/tr>\n<tr>\n<td>Typ \u010distic\u00ed kapaliny<\/td>\n<td>Vysok\u00e1 viskozita, nevhodn\u00e9 pro hlubok\u00e9 otvory<\/td>\n<td>St\u0159edn\u00ed viskozita, vhodn\u00e9 pro v\u011bt\u0161inu otvor\u016f<\/td>\n<td>N\u00edzk\u00e1 viskozita, vhodn\u00e9 i pro hlubok\u00e9 otvory<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee ultrazvukov\u00e9 \u010di\u0161t\u011bn\u00ed m\u016f\u017ee b\u00fdt efektivn\u00ed metodou pro \u010di\u0161t\u011bn\u00ed slep\u00fdch otvor\u016f, av\u0161ak jeho \u00fasp\u011bch z\u00e1vis\u00ed na \u0159ad\u011b faktor\u016f, v\u010detn\u011b hloubky a geometrie otvoru, frekvence a intenzity ultrazvuku a volb\u011b vhodn\u00e9 \u010distic\u00ed kapaliny.  Optim\u00e1ln\u00ed nastaven\u00ed parametr\u016f je kl\u00ed\u010dov\u00e9 pro dosa\u017een\u00ed co nejlep\u0161\u00edho v\u00fdsledku.  V praxi je \u010dasto nutn\u00e9 experimentovat s r\u016fzn\u00fdmi nastaven\u00edmi, aby se na\u0161la ta nejvhodn\u011bj\u0161\u00ed kombinace pro konkr\u00e9tn\u00ed aplikaci.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ultrazvukov\u00e9 \u010di\u0161t\u011bn\u00ed je efektivn\u00ed metoda pro odstra\u0148ov\u00e1n\u00ed ne\u010distot z r\u016fzn\u00fdch materi\u00e1l\u016f a povrch\u016f. Ot\u00e1zka, zda dok\u00e1\u017ee efektivn\u011b vy\u010distit i slep\u00e9 otvory, je v\u0161ak komplexn\u011bj\u0161\u00ed a z\u00e1vis\u00ed na n\u011bkolika faktorech. Tento \u010dl\u00e1nek se podrobn\u011bji zam\u011b\u0159\u00ed na tuto problematiku. Hloubka a geometrie slep\u00e9ho otvoru Hloubka slep\u00e9ho otvoru je kl\u00ed\u010dov\u00fdm faktorem ovliv\u0148uj\u00edc\u00edm \u00fa\u010dinnost ultrazvukov\u00e9ho \u010di\u0161t\u011bn\u00ed. \u010c\u00edm je otvor<\/p>\n","protected":false},"author":1,"featured_media":18788,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-62661","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\/62661","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=62661"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/62661\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/18788"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=62661"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=62661"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=62661"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}