V\u011bd\u011bli jste, \u017ee v mnoha p\u0159\u00edpadech lze k vysv\u011btlen\u00ed skute\u010dnost\u00ed v technologii plast\u016f pou\u017e\u00edt srovn\u00e1n\u00ed s p\u0159\u00edrodou a lidmi?<\/p>\n
Dne\u0161n\u00ed term\u00edn: Dynamick\u00fd tlak, udr\u017eov\u00e1n\u00ed tlaku, udr\u017eov\u00e1n\u00ed tlaku - bez tlaku se nic ned\u011bje!<\/strong><\/p>\n V\u0161ichni to v\u00edme. Dom\u00e1c\u00ed \u00fakoly, da\u0148ov\u00e9 p\u0159izn\u00e1n\u00ed, \u017eehlen\u00ed pr\u00e1dla... Dokud nen\u00ed \u017e\u00e1dn\u00fd tlak, v\u011bci se d\u011bj\u00ed dlouho. V\u016fbec nic<\/strong>!<\/p>\n Situace je velmi podobn\u00e1 jako u vst\u0159ikov\u00e1n\u00ed - bez tlaku se z hork\u00e9ho plastu nestane hotov\u00fd v\u00fdlisek.<\/p>\n V\u00ed\u0161, je tu jeden \u00fakol..... Ale ned\u011bl\u00e1 se to samo. Je to jako vnit\u0159n\u00ed dopravn\u00ed z\u00e1cpa my\u0161lenek a v\u00fd\u010ditek sv\u011bdom\u00ed. Vezmete si odvahu, p\u0159iprav\u00edte se a pust\u00edte se do toho t\u011bsn\u011b p\u0159edt\u00edm, ne\u017e se term\u00edn p\u0159ibl\u00ed\u017e\u00ed a p\u0159ibl\u00ed\u017e\u00ed.<\/p>\n P\u0159i vst\u0159ikov\u00e1n\u00ed se jedn\u00e1 o f\u00e1zi p\u0159ed vst\u0159ikov\u00e1n\u00edm hork\u00e9 plastov\u00e9 sm\u011bsi do formy. Ve vst\u0159ikovac\u00edm v\u00e1lci stroje SG by m\u011bl \u0161nekov\u00fd dopravn\u00edk dopravovat je\u0161t\u011b studen\u00fd granul\u00e1t na jeho cest\u011b ke \u0161pi\u010dce pod vlivem vn\u011bj\u0161\u00edho tepla a vnit\u0159n\u00edho t\u0159en\u00ed (T\u0159ec\u00ed teplo<\/a>) zkapalnit a homogenizovat. Bez protitlaku, tzv. protitlaku, kter\u00fd je nam\u00ed\u0159en proti sm\u011bru pohybu \u0161neku, by \u0161nek jednodu\u0161e tla\u010dil granul\u00e1t dop\u0159edu. Hmotn\u00fd pol\u0161t\u00e1\u0159 \u201enahromad\u011bn\u00fd\u201c p\u0159ed \u0161nekem by byl zcela nep\u0159ipraven\u00fd pro n\u00e1sledn\u00fd proces vst\u0159ikov\u00e1n\u00ed.<\/p>\n Za\u010dali jste - nejv\u011bt\u0161\u00ed v\u00fdzva ze v\u0161ech. Te\u010f to mus\u00edte dot\u00e1hnout do konce. Nyn\u00ed m\u016f\u017eete dokon\u010dit posledn\u00ed 10% \u00fakol.<\/p>\n Dr\u017een\u00ed tlaku je dodate\u010dn\u00fd tlak na posledn\u00ed metr, aby se projekt zcela poda\u0159il. Bez p\u0159idr\u017eovac\u00edho tlaku by vst\u0159ikovan\u00fd d\u00edl nebyl zcela vypln\u011bn. D\u016fvodem je to, \u017ee hork\u00e1 plastov\u00e1 hmota se p\u0159i ochlazov\u00e1n\u00ed ve vst\u0159ikovac\u00ed form\u011b rychle smr\u0161\u0165uje. Udr\u017eovac\u00ed tlak zaji\u0161\u0165uje, \u017ee se \u0161nek, kter\u00fd funguje jako p\u00edst, b\u011bhem vst\u0159ikov\u00e1n\u00ed nad\u00e1le sna\u017e\u00ed vtla\u010dit plast do dutiny. To trv\u00e1 tak dlouho, dokud vst\u0159ikovan\u00fd d\u00edl ji\u017e nem\u016f\u017ee absorbovat dal\u0161\u00ed hmotu. Nedoch\u00e1z\u00ed tak k tvorb\u011b ot\u0159ep\u016f, propad\u016f a deformac\u00ed.<\/p>\n M\u00e1te hotovo - teoreticky ano, ale je v\u00fdsledek skute\u010dn\u011b udr\u017eiteln\u00fd?<\/p>\n Dutina, kter\u00e1 je zcela zapln\u011bna tlakem, je doslova pod tlakem a r\u00e1da by se tomuto tlaku podvolila - my v\u0161ak vydr\u017e\u00edme, dokud m\u00edsto vst\u0159iku nevychladne. Teprve nyn\u00ed m\u016f\u017eeme tlak uvolnit.<\/p>\n Bez tlaku nefunguje t\u00e9m\u011b\u0159 nic - stejn\u011b jako ve skute\u010dn\u00e9m \u017eivot\u011b.<\/strong><\/p>","protected":false},"featured_media":0,"parent":0,"template":"","class_list":["post-4039","fachbegriff","type-fachbegriff","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/hamco-germany.com\/cs\/wp-json\/wp\/v2\/fachbegriff\/4039","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hamco-germany.com\/cs\/wp-json\/wp\/v2\/fachbegriff"}],"about":[{"href":"https:\/\/hamco-germany.com\/cs\/wp-json\/wp\/v2\/types\/fachbegriff"}],"wp:attachment":[{"href":"https:\/\/hamco-germany.com\/cs\/wp-json\/wp\/v2\/media?parent=4039"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Dynamick\u00fd tlak - vnit\u0159n\u00ed tlak nar\u016fst\u00e1<\/h3>\n
Zd\u016frazn\u011bn\u00ed - Te\u010f to vyt\u00e1hn\u011bte!<\/h3>\n
Dr\u017een\u00ed tlaku - z\u016fsta\u0148te nalad\u011bni!<\/h3>\n