{"id":63301,"date":"2022-06-30T18:42:27","date_gmt":"2022-06-30T23:42:27","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/ultrasonic-welding-basic-knowledge\/"},"modified":"2025-01-27T06:15:46","modified_gmt":"2025-01-27T11:15:46","slug":"ultrasonic-welding-basic-knowledge","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/ultrasonic-welding-basic-knowledge\/","title":{"rendered":"Ultrazvukov\u00e9 sva\u0159ov\u00e1n\u00ed: Z\u00e1kladn\u00ed principy a technologie"},"content":{"rendered":"<p>Ultrazvukov\u00e9 sva\u0159ov\u00e1n\u00ed je modern\u00ed a vysoce efektivn\u00ed metoda spojov\u00e1n\u00ed materi\u00e1l\u016f, kter\u00e1 vyu\u017e\u00edv\u00e1 energii ultrazvuku k vytvo\u0159en\u00ed pevn\u00e9ho a trval\u00e9ho spoje. Na rozd\u00edl od tradi\u010dn\u00edch metod sva\u0159ov\u00e1n\u00ed, jako je sva\u0159ov\u00e1n\u00ed obloukem nebo odporov\u00e9 sva\u0159ov\u00e1n\u00ed, ultrazvukov\u00e9 sva\u0159ov\u00e1n\u00ed nepou\u017e\u00edv\u00e1 teplo k roztaven\u00ed materi\u00e1l\u016f. M\u00edsto toho vyu\u017e\u00edv\u00e1 vysokofrekven\u010dn\u00ed vibrace k vytvo\u0159en\u00ed tlaku a tepla na rozhran\u00ed spojovan\u00fdch materi\u00e1l\u016f, co\u017e vede k jejich molekul\u00e1rn\u00edmu spojen\u00ed. Tato metoda je vhodn\u00e1 pro \u0161irokou \u0161k\u00e1lu materi\u00e1l\u016f, v\u010detn\u011b plast\u016f, kov\u016f a kompozit\u016f, a je charakteristick\u00e1 svou rychlost\u00ed, p\u0159esnost\u00ed a n\u00edzkou energetickou n\u00e1ro\u010dnost\u00ed.<\/p>\n<h3>Principy ultrazvukov\u00e9ho sva\u0159ov\u00e1n\u00ed<\/h3>\n<p>Ultrazvukov\u00e9 sva\u0159ov\u00e1n\u00ed vyu\u017e\u00edv\u00e1 piezoelektrick\u00fd jev, kdy se krystalick\u00fd materi\u00e1l deformuje p\u0159i vystaven\u00ed elektrick\u00e9mu poli a naopak.  V ultrazvukov\u00e9m sva\u0159ovac\u00edm za\u0159\u00edzen\u00ed se piezoelektrick\u00e9 krystaly bu\u010f p\u0159\u00edmo, nebo prost\u0159ednictv\u00edm magnetostrik\u010dn\u00edch transform\u00e1tor\u016f, rozkmitaj\u00ed na frekvenci obvykle v rozmez\u00ed 20-40 kHz.  Tyto vibrace se p\u0159en\u00e1\u0161ej\u00ed na sonotrodu (sva\u0159ovac\u00ed hrot), kter\u00e1 p\u0159en\u00e1\u0161\u00ed energii na spojovan\u00e9 materi\u00e1ly.  Vibrace vytv\u00e1\u0159ej\u00ed tlak a t\u0159ec\u00ed teplo na rozhran\u00ed materi\u00e1l\u016f, kter\u00e9 zp\u016fsobuj\u00ed plastickou deformaci a molekul\u00e1rn\u00ed f\u00fazi.  Tato f\u00faze vytv\u00e1\u0159\u00ed siln\u00fd a trval\u00fd spoj.<\/p>\n<h3>Typy ultrazvukov\u00e9ho sva\u0159ov\u00e1n\u00ed<\/h3>\n<p>Existuj\u00ed r\u016fzn\u00e9 metody ultrazvukov\u00e9ho sva\u0159ov\u00e1n\u00ed, li\u0161\u00edc\u00ed se p\u0159edev\u0161\u00edm typem pou\u017eit\u00e9ho za\u0159\u00edzen\u00ed a zp\u016fsobem aplikace ultrazvukov\u00e9 energie:<\/p>\n<ul>\n<li><strong>Sva\u0159ov\u00e1n\u00ed s p\u0159\u00edm\u00fdm p\u0159enosem energie:<\/strong>  Ultrazvukov\u00e1 energie je p\u0159\u00edmo p\u0159en\u00e1\u0161ena z sonotrody na spojovan\u00e9 materi\u00e1ly.  Tato metoda je nej\u010dast\u011bji pou\u017e\u00edvan\u00e1 pro sva\u0159ov\u00e1n\u00ed termoplast\u016f.<\/li>\n<li><strong>Sva\u0159ov\u00e1n\u00ed s pou\u017eit\u00edm rohov\u00fdch p\u0159\u00edpravk\u016f:<\/strong>  Ultrazvukov\u00e1 energie je p\u0159en\u00e1\u0161ena p\u0159es rohov\u00fd p\u0159\u00edpravek, kter\u00fd umo\u017e\u0148uje sva\u0159ov\u00e1n\u00ed materi\u00e1l\u016f s komplexn\u00edmi tvary.<\/li>\n<li><strong>Sva\u0159ov\u00e1n\u00ed s vibrac\u00edmi v rovin\u011b:<\/strong>  Vibrace jsou aplikov\u00e1ny v rovin\u011b spojovan\u00fdch materi\u00e1l\u016f, co\u017e umo\u017e\u0148uje sva\u0159ov\u00e1n\u00ed tenk\u00fdch a k\u0159ehk\u00fdch materi\u00e1l\u016f.<\/li>\n<\/ul>\n<h3>Parametry ovliv\u0148uj\u00edc\u00ed kvalitu sva\u0159ov\u00e1n\u00ed<\/h3>\n<p>Kvalita ultrazvukov\u00e9ho sva\u0159ov\u00e1n\u00ed z\u00e1vis\u00ed na n\u011bkolika kl\u00ed\u010dov\u00fdch parametrech:<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Parametr<\/th>\n<th>Vliv na kvalitu sva\u0159ov\u00e1n\u00ed<\/th>\n<th>Optim\u00e1ln\u00ed nastaven\u00ed z\u00e1vis\u00ed na\u2026<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Frekvence<\/td>\n<td>Ur\u010duje hloubku pronik\u00e1n\u00ed ultrazvukov\u00e9 energie<\/td>\n<td>Materi\u00e1lu a tlou\u0161\u0165ce spojovan\u00fdch d\u00edl\u016f<\/td>\n<\/tr>\n<tr>\n<td>Amplitudu<\/td>\n<td>Ur\u010duje intenzitu ultrazvukov\u00fdch vibrac\u00ed a generovan\u00e9 teplo<\/td>\n<td>Materi\u00e1lu a tlou\u0161\u0165ce spojovan\u00fdch d\u00edl\u016f<\/td>\n<\/tr>\n<tr>\n<td>Tlak<\/td>\n<td>Ur\u010duje s\u00edlu stla\u010den\u00ed spojovan\u00fdch materi\u00e1l\u016f<\/td>\n<td>Materi\u00e1lu a tlou\u0161\u0165ce spojovan\u00fdch d\u00edl\u016f<\/td>\n<\/tr>\n<tr>\n<td>Doba sva\u0159ov\u00e1n\u00ed<\/td>\n<td>Ur\u010duje dobu p\u016fsoben\u00ed ultrazvukov\u00e9 energie na spojovan\u00e9 materi\u00e1ly<\/td>\n<td>Materi\u00e1lu a tlou\u0161\u0165ce spojovan\u00fdch d\u00edl\u016f<\/td>\n<\/tr>\n<tr>\n<td>Teplota<\/td>\n<td>Ovliv\u0148uje viskozitu materi\u00e1lu a kvalitu spoje<\/td>\n<td>Materi\u00e1lu a jeho sklonu k deformaci<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Aplikace ultrazvukov\u00e9ho sva\u0159ov\u00e1n\u00ed<\/h3>\n<p>Ultrazvukov\u00e9 sva\u0159ov\u00e1n\u00ed nach\u00e1z\u00ed \u0161irok\u00e9 uplatn\u011bn\u00ed v r\u016fzn\u00fdch pr\u016fmyslov\u00fdch odv\u011btv\u00edch, nap\u0159\u00edklad:<\/p>\n<ul>\n<li><strong>Automobilov\u00fd pr\u016fmysl:<\/strong> Sva\u0159ov\u00e1n\u00ed plastov\u00fdch d\u00edl\u016f v interi\u00e9ru vozidel.<\/li>\n<li><strong>Elektronick\u00fd pr\u016fmysl:<\/strong> Sva\u0159ov\u00e1n\u00ed plastov\u00fdch pouzder a konektor\u016f.<\/li>\n<li><strong>L\u00e9ka\u0159sk\u00fd pr\u016fmysl:<\/strong> Sva\u0159ov\u00e1n\u00ed plastov\u00fdch d\u00edl\u016f v l\u00e9ka\u0159sk\u00fdch za\u0159\u00edzen\u00edch.<\/li>\n<li><strong>Balic\u00ed pr\u016fmysl:<\/strong> Sva\u0159ov\u00e1n\u00ed f\u00f3li\u00ed a obal\u016f.<\/li>\n<\/ul>\n<h3>V\u00fdhody ultrazvukov\u00e9ho sva\u0159ov\u00e1n\u00ed<\/h3>\n<p>Hlavn\u00ed v\u00fdhody ultrazvukov\u00e9ho sva\u0159ov\u00e1n\u00ed zahrnuj\u00ed:<\/p>\n<ul>\n<li><strong>Rychlost:<\/strong> Proces je velmi rychl\u00fd, co\u017e sni\u017euje v\u00fdrobn\u00ed n\u00e1klady.<\/li>\n<li><strong>P\u0159esnost:<\/strong>  Umo\u017e\u0148uje vytv\u00e1\u0159et velmi p\u0159esn\u00e9 a reprodukovateln\u00e9 spoje.<\/li>\n<li><strong>N\u00edzk\u00e1 energetick\u00e1 n\u00e1ro\u010dnost:<\/strong> Spot\u0159eba energie je n\u00edzk\u00e1 ve srovn\u00e1n\u00ed s jin\u00fdmi metodami sva\u0159ov\u00e1n\u00ed.<\/li>\n<li><strong>\u0160etrnost k \u017eivotn\u00edmu prost\u0159ed\u00ed:<\/strong>  Nepou\u017e\u00edvaj\u00ed se \u017e\u00e1dn\u00e9 \u0161kodliv\u00e9 chemick\u00e9 l\u00e1tky.<\/li>\n<li><strong>Vysok\u00e1 kvalita spoj\u016f:<\/strong>  Vytv\u00e1\u0159\u00ed se pevn\u00e9 a trval\u00e9 spoje.<\/li>\n<\/ul>\n<p>Ultrazvukov\u00e9 sva\u0159ov\u00e1n\u00ed p\u0159edstavuje efektivn\u00ed a \u0161etrnou technologii spojov\u00e1n\u00ed materi\u00e1l\u016f s \u0161irok\u00fdm spektrem aplikac\u00ed. Jeho v\u00fdhody z n\u011bj \u010din\u00ed atraktivn\u00ed alternativu k tradi\u010dn\u00edm metod\u00e1m sva\u0159ov\u00e1n\u00ed v mnoha pr\u016fmyslov\u00fdch odv\u011btv\u00edch.  D\u016fkladn\u00e9 pochopen\u00ed princip\u016f a parametr\u016f procesu je kl\u00ed\u010dov\u00e9 pro dosa\u017een\u00ed optim\u00e1ln\u00edch v\u00fdsledk\u016f.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ultrazvukov\u00e9 sva\u0159ov\u00e1n\u00ed je modern\u00ed a vysoce efektivn\u00ed metoda spojov\u00e1n\u00ed materi\u00e1l\u016f, kter\u00e1 vyu\u017e\u00edv\u00e1 energii ultrazvuku k vytvo\u0159en\u00ed pevn\u00e9ho a trval\u00e9ho spoje. Na rozd\u00edl od tradi\u010dn\u00edch metod sva\u0159ov\u00e1n\u00ed, jako je sva\u0159ov\u00e1n\u00ed obloukem nebo odporov\u00e9 sva\u0159ov\u00e1n\u00ed, ultrazvukov\u00e9 sva\u0159ov\u00e1n\u00ed nepou\u017e\u00edv\u00e1 teplo k roztaven\u00ed materi\u00e1l\u016f. M\u00edsto toho vyu\u017e\u00edv\u00e1 vysokofrekven\u010dn\u00ed vibrace k vytvo\u0159en\u00ed tlaku a tepla na rozhran\u00ed spojovan\u00fdch materi\u00e1l\u016f, co\u017e<\/p>\n","protected":false},"author":1,"featured_media":1574,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-63301","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\/63301","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=63301"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/63301\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/1574"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=63301"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=63301"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=63301"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}