{"id":1199,"date":"2025-12-12T05:27:21","date_gmt":"2025-12-12T05:27:21","guid":{"rendered":"https:\/\/www.materialstests.com\/?p=1199"},"modified":"2025-12-12T05:27:24","modified_gmt":"2025-12-12T05:27:24","slug":"how-is-a-pressure-decay-test-performed","status":"publish","type":"post","link":"https:\/\/www.materialstests.com\/cs\/resources\/how-is-a-pressure-decay-test-performed.html","title":{"rendered":"Jak se prov\u00e1d\u00ed zkou\u0161ka rozpadu tlaku?"},"content":{"rendered":"

Zkou\u0161ka t\u011bsnosti p\u0159i poklesu tlaku<\/h2>\n\n\n\n

Jak se prov\u00e1d\u00ed zkou\u0161ka rozpadu tlaku?<\/h2>\n\n\n\n

Pro zah\u00e1jen\u00ed zkou\u0161ky t\u011bsnosti tlakov\u00fdm rozpadem se ke zku\u0161ebn\u00edmu otvoru p\u0159ipoj\u00ed zku\u0161ebn\u00ed d\u00edl [TP]. Zkou\u0161e\u010dka pot\u00e9 natlakuje d\u00edl tlakem [+P] na po\u017eadovan\u00fd zku\u0161ebn\u00ed tlak nastaven\u00fd regul\u00e1torem tlaku [R1] b\u011bhem kroku Pln\u011bn\u00ed otev\u0159en\u00edm ventil\u016f [V1] a [V2].<\/p>\n\n\n\n

Po dokon\u010den\u00ed kroku Pln\u011bn\u00ed se uvnit\u0159 d\u00edlu zachyt\u00ed tlak, proto\u017ee se uzav\u0159e [V2]. Po m\u00edrn\u00e9m zpo\u017ed\u011bn\u00ed se [V1] uzav\u0159e, \u010d\u00edm\u017e se potrub\u00ed mezi [V1] a [V2] odvzdu\u0161n\u00ed do atmosf\u00e9ry p\u0159es [V1], tak\u017ee jak\u00fdkoli \u00fanik p\u0159es [V2] zp\u016fsob\u00ed, \u017ee tester tento \u00fanik uvid\u00ed a v\u0161echny testy neprojdou. P\u0159\u00eddavn\u00fd ventil umo\u017e\u0148uje konfiguraci s pojistkou proti selh\u00e1n\u00ed.<\/p>\n\n\n\n

Tlak zachycen\u00fd uvnit\u0159 zku\u0161ebn\u00edho obvodu se udr\u017euje v kroku Stabilizace a pot\u00e9 se m\u011b\u0159\u00ed tlakov\u00fdm senzorem [PS] testeru v kroku Test.<\/p>\n\n\n\n

Pokud d\u00edl p\u0159ekro\u010d\u00ed naprogramovanou toleranci net\u011bsnosti (pokles tlaku v \u010dase nebo kvantifikovan\u00e1 m\u00edra net\u011bsnosti), zobraz\u00ed se na displeji testeru d\u016fvod selh\u00e1n\u00ed testu a zobraz\u00ed se tlakov\u00e1 ztr\u00e1ta nebo m\u00edra net\u011bsnosti v m\u011brn\u00fdch jednotk\u00e1ch definovan\u00fdch u\u017eivatelem.<\/p>\n\n\n\n

Po dokon\u010den\u00ed kroku Test se tlak zachycen\u00fd v d\u00edlu vypust\u00ed do atmosf\u00e9ry p\u0159es [V1] otev\u0159en\u00edm [V2] b\u011bhem kroku Vent a tester je p\u0159ipraven na dal\u0161\u00ed test.<\/p>\n\n\n\n

\"Jak<\/figure>\n\n\n\n

Syst\u00e9my pro testov\u00e1n\u00ed rozpadu tlaku<\/h2>\n\n\n\n

Zkou\u0161ka t\u011bsnosti p\u0159i poklesu tlaku<\/strong><\/a> je nej\u010dast\u011bji pou\u017e\u00edvanou metodou. D\u00edky sv\u00e9 jednoduchosti se snadno automatizuje a integruje do v\u00fdrobn\u00edch\/mont\u00e1\u017en\u00edch proces\u016f.<\/p>\n\n\n\n

Zjednodu\u0161en\u011b \u0159e\u010deno, p\u0159i zkou\u0161ce poklesu tlaku se tlakov\u00e1 n\u00e1doba pln\u00ed vzduchem, dokud nedos\u00e1hne c\u00edlov\u00e9ho tlaku, zdroj vzduchu se p\u0159eru\u0161\u00ed, aby se tlak izoloval, a m\u011b\u0159\u00ed se pokles (ztr\u00e1ta) tohoto tlaku po stanovenou dobu; ztr\u00e1ta tlaku v\u011bt\u0161\u00ed ne\u017e p\u0159edem stanoven\u00e9 nastaven\u00ed znamen\u00e1 net\u011bsnost. Citlivost a p\u0159esnost m\u011b\u0159en\u00ed poklesu tlaku je funkc\u00ed velikosti zku\u0161ebn\u00edho d\u00edlu a doby zkou\u0161ky. V\u011bt\u0161inu zkou\u0161ek lze prov\u00e9st pom\u011brn\u011b rychle s velmi p\u0159esn\u00fdmi v\u00fdsledky, ale \u010d\u00edm v\u011bt\u0161\u00ed je d\u00edl, t\u00edm del\u0161\u00ed je doba cyklu, kter\u00e1 je nutn\u00e1 k dosa\u017een\u00ed p\u0159esn\u00e9ho v\u00fdsledku zkou\u0161ky.<\/p>\n\n\n\n

Co je to zkou\u0161ka t\u011bsnosti tlakov\u00fdm rozpadem?<\/h2>\n\n\n\n

Tlakov\u00fd rozklad je jedn\u00edm z nejpou\u017e\u00edvan\u011bj\u0161\u00edch
 <\/p>\n\n\n\n

Funguje to takto:<\/h3>\n\n\n\n

P\u0159ipojte d\u00edl ke zkou\u0161e\u010dce t\u011bsnosti pomoc\u00ed \u0161rouben\u00ed nebo p\u0159\u00edpravku. B\u011bhem f\u00e1ze FILL je v\u00e1\u0161 d\u00edl pod tlakem.<\/p>\n\n\n\n

Po dosa\u017een\u00ed po\u017eadovan\u00e9ho zku\u0161ebn\u00edho tlaku stanoven\u00e9ho v\u00fdrobcem a uplynut\u00ed doby pln\u011bn\u00ed se spust\u00ed f\u00e1ze SETTLE, kter\u00e1 se p\u0159izp\u016fsob\u00ed rozta\u017een\u00ed nebo ohybu d\u00edlu.<\/p>\n\n\n\n

Po usazen\u00ed d\u00edlu a uplynut\u00ed doby usazov\u00e1n\u00ed se spust\u00ed TEST poklesu tlaku. Ve f\u00e1zi testu bude tlakov\u00fd senzor m\u011b\u0159it jak\u00fdkoli pokles tlaku.<\/p>\n\n\n\n

Po zkou\u0161ce poklesu tlaku se zb\u00fdvaj\u00edc\u00ed tlak v syst\u00e9mu vypust\u00ed do atmosf\u00e9ry ve f\u00e1zi VENT.<\/p>\n\n\n\n

Pokud pokles tlaku va\u0161eho d\u00edlu z\u016fstane v mez\u00edch specifikace, pak v\u00e1\u0161 d\u00edl PROB\u011aHNE a rozsv\u00edt\u00ed se zelen\u00e1 kontrolka. Pokud pokles tlaku va\u0161eho d\u00edlu klesne pod doln\u00ed mez, pak v\u00e1\u0161 d\u00edl NESPLNIL a rozsv\u00edt\u00ed se \u010derven\u00e1 kontrolka.<\/p>\n\n\n\n

V\u00fdhodou tohoto typu testov\u00e1n\u00ed je p\u0159esnost a\u017e na 5. desetinn\u00e9 m\u00edsto nebo 0,00001 PSI, co\u017e umo\u017e\u0148uje rychl\u00e9 testovac\u00ed cykly.<\/p>\n\n\n\n

 <\/h3>\n\n\n\n

Uk\u00e1zkov\u00e9 aplikace:<\/h3>\n\n\n\n

Katetry<\/p>\n\n\n\n

IV Set<\/p>\n\n\n\n

Trubky<\/p>\n\n\n\n

Bezjehlov\u00e9 vst\u0159ikov\u00e1n\u00ed<\/p>\n\n\n\n

Ta\u0161ka<\/p>\n\n\n\n

Implantovateln\u00e9 za\u0159\u00edzen\u00ed<\/p>\n\n\n\n

Infuzn\u00ed souprava<\/p>\n\n\n\n

M\u011b\u0159ic\u00ed za\u0159\u00edzen\u00ed<\/p>\n\n\n\n

Senzory\/indik\u00e1tory<\/p>\n\n\n\n

 <\/h2>\n\n\n\n

Navrhovan\u00e9 testery t\u011bsnosti pro pokles tlaku<\/h2>\n\n\n\n

 <\/h3>\n\n\n\n

Rozpad tlaku<\/strong><\/a> je jednou z nejpou\u017e\u00edvan\u011bj\u0161\u00edch metod testov\u00e1n\u00ed t\u011bsnosti ve v\u00fdrob\u011b a je ide\u00e1ln\u00ed pro ut\u011bsn\u011bn\u00e9 sou\u010d\u00e1sti s p\u0159\u00edstupov\u00fdm otvorem. P\u0159i t\u00e9to zkou\u0161ce se v\u00fdrobek p\u0159ipoj\u00ed ke zkou\u0161e\u010dce t\u011bsnosti a napln\u00ed se vzduchem. Po natlakov\u00e1n\u00ed se zdroj vzduchu uzav\u0159e a tlak se nech\u00e1 ust\u00e1lit. Jak\u00fdkoli pokles tlaku vzduchu v pr\u016fb\u011bhu testu znamen\u00e1 net\u011bsnost. Pokud d\u00edl net\u011bsn\u00ed\/nesni\u017euje se nad p\u0159edem stanovenou hodnotu vy\u0159azen\u00ed, jedn\u00e1 se o dobr\u00fd d\u00edl. Citlivost t\u00e9to zkou\u0161ky z\u00e1vis\u00ed na velikosti v\u00fdrobku a \u010dasov\u00e9m intervalu zkou\u0161ky. V\u011bt\u0161\u00ed p\u0159edm\u011bty vy\u017eaduj\u00ed del\u0161\u00ed dobu cyklu, aby bylo dosa\u017eeno dostate\u010dn\u011b vysok\u00e9 citlivosti pro test kvality. Men\u0161\u00ed p\u0159edm\u011bty s mal\u00fdm vnit\u0159n\u00edm objemem budou vy\u017eadovat velmi n\u00edzkou dobu cyklu, co\u017e umo\u017en\u00ed vysokou propustnost v\u00fdroby. v\u00fdhodou tohoto typu testov\u00e1n\u00ed je, \u017ee je p\u0159esn\u00e9 a\u017e na 5. desetinn\u00e9 m\u00edsto nebo 0,00001 PSI, co\u017e umo\u017e\u0148uje rychl\u00e9 zku\u0161ebn\u00ed cykly.<\/p>\n\n\n\n

Pokud m\u00e1te z\u00e1jem o dal\u0161\u00ed informace o tomto produktu, nev\u00e1hejte se obr\u00e1tit na kontaktujte n\u00e1s. <\/strong><\/a><\/p>\n\n\n\n

\"\"<\/a><\/figure>","protected":false},"excerpt":{"rendered":"

Zkou\u0161ka t\u011bsnosti tlakov\u00fdm rozpadem Jak se prov\u00e1d\u00ed zkou\u0161ka tlakov\u00fdm rozpadem? Zkou\u0161ka t\u011bsnosti rozpadem tlaku se zah\u00e1j\u00ed p\u0159ipojen\u00edm zku\u0161ebn\u00edho d\u00edlu [TP] ke zku\u0161ebn\u00edmu portu. Zkou\u0161e\u010dka pot\u00e9 natlakuje d\u00edl tlakem [+P] na po\u017eadovan\u00fd zku\u0161ebn\u00ed tlak nastaven\u00fd regul\u00e1torem tlaku [R1] b\u011bhem kroku Pln\u011bn\u00ed otev\u0159en\u00edm ventil\u016f [...].<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1199","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/posts\/1199","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/comments?post=1199"}],"version-history":[{"count":0,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/posts\/1199\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/media?parent=1199"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/categories?post=1199"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/tags?post=1199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}