{"id":18217,"date":"2026-08-06T14:32:33","date_gmt":"2026-08-06T06:32:33","guid":{"rendered":"https:\/\/moldiecasting.com\/?p=18217"},"modified":"2026-10-08T21:08:22","modified_gmt":"2026-10-08T13:08:22","slug":"die-casting-mold-material-selection-and-performance","status":"publish","type":"post","link":"https:\/\/moldiecasting.com\/sk\/blog\/die-casting-mold-material-selection-and-performance\/","title":{"rendered":"Materi\u00e1l formy na tlakov\u00e9 liatie: v\u00fdber a vlastnosti"},"content":{"rendered":"<p>Materi\u00e1l formy na tlakov\u00e9 liatie je jedn\u00fdm z hlavn\u00fdch faktorov ovplyv\u0148uj\u00facich samotn\u00fd proces. Materi\u00e1ly musia bez prasknutia \u010di straty tvaru odol\u00e1va\u0165 roztaven\u00e9mu kovu, vysok\u00e9mu vstrekovaciemu tlaku a tis\u00edcom cyklov zahrievania a chladenia.<\/p>\n<p><strong>Spr\u00e1vny v\u00fdber z\u00e1vis\u00ed od zos\u00faladenia vlastnost\u00ed materi\u00e1lu s odlievanou zliatinou, objemom v\u00fdroby a sp\u00f4sobom chladenia a \u00fadr\u017eby formy po\u010das jej \u017eivotnosti.<\/strong><\/p>\n<p>T\u00e1to pr\u00edru\u010dka opisuje za\u0165a\u017eenie n\u00e1strojov, porovn\u00e1va be\u017en\u00e9 ocele a \u0161peci\u00e1lne zliatiny a vysvet\u013euje, ako kon\u0161trukcia a \u00fadr\u017eba chr\u00e1nia formu po\u010das v\u00fdroby.<\/p>\n<h2>Podmienky tlakov\u00e9ho liatia, ktor\u00fdm mus\u00ed n\u00e1stroj odol\u00e1va\u0165<\/h2>\n<p>Forma na tlakov\u00e9 liatie pracuje v podmienkach, ktor\u00fdm \u010del\u00ed len m\u00e1lo in\u00fdch n\u00e1strojov. Ka\u017ed\u00fd cyklus prin\u00e1\u0161a roztaven\u00fd kov, <a href=\"https:\/\/moldiecasting.com\/sk\/blog\/high-pressure-die-casting\/\">vysok\u00fd tlak<\/a>, r\u00fdchle chladenie a mechanick\u00e9 nam\u00e1hanie t\u00fdch ist\u00fdch oce\u013eov\u00fdch povrchov, a to tis\u00edckr\u00e1t za sebou.<\/p>\n<h3>Teplo, tlak a tepeln\u00e9 cykly<\/h3>\n<ul class=\"list-inside list-disc whitespace-normal [li_&amp;]:pl-6\" data-streamdown=\"unordered-list\">\n<li class=\"py-1 [&amp;&gt;p]:inline\" data-streamdown=\"list-item\"><span class=\"font-semibold\" data-streamdown=\"strong\"><strong>Vysok\u00fd vstrekovac\u00ed tlak<\/strong>:<\/span>\u00a0Roztaven\u00fd kov sa vtl\u00e1\u010da do dutiny formy tlakom dosahuj\u00facim tis\u00edce psi, \u010do vytv\u00e1ra trval\u00e9 mechanick\u00e9 nam\u00e1hanie.<\/li>\n<li class=\"py-1 [&amp;&gt;p]:inline\" data-streamdown=\"list-item\"><span class=\"font-semibold\" data-streamdown=\"strong\"><strong>Tepeln\u00e9 cykly<\/strong>:<\/span>\u00a0Forma opakovane a r\u00fdchlo prech\u00e1dza medzi extr\u00e9mnym teplom roztaven\u00e9ho kovu a akt\u00edvnym chladen\u00edm vn\u00fatorn\u00fdmi kan\u00e1lmi.<\/li>\n<li class=\"py-1 [&amp;&gt;p]:inline\" data-streamdown=\"list-item\"><span class=\"font-semibold\" data-streamdown=\"strong\"><strong>Tepeln\u00e1 \u00fanava \u2013 sie\u0165ov\u00e9 trhliny<\/strong>:<\/span>\u00a0Neust\u00e1le kol\u00edsanie teploty postupne vytv\u00e1ra jemn\u00e9 povrchov\u00e9 trhliny. \u010casom sa tieto trhliny prejavia na odliatku ako vyst\u00fapen\u00e9 \u010diary.<\/li>\n<\/ul>\n<p>Odolnos\u0165 vo\u010di tepeln\u00e9mu nam\u00e1haniu z\u00e1vis\u00ed najm\u00e4 od spr\u00e1vneho zlo\u017eenia zliatiny a presn\u00e9ho tepeln\u00e9ho spracovania, nielen od triedy ocele.<\/p>\n<h3>Odolnos\u0165 proti opotrebovaniu, er\u00f3zii a kor\u00f3zii<\/h3>\n<ul class=\"list-inside list-disc whitespace-normal [li_&amp;]:pl-6\" data-streamdown=\"unordered-list\">\n<li class=\"py-1 [&amp;&gt;p]:inline\" data-streamdown=\"list-item\"><span class=\"font-semibold\" data-streamdown=\"strong\"><strong>Er\u00f3zia pri vysokej r\u00fdchlosti<\/strong>:<\/span>\u00a0Ak je oce\u013e m\u00e4kk\u00e1 alebo nedostato\u010dne vytvrden\u00e1, roztaven\u00fd kov pr\u00fadiaci cez vtoky a rozv\u00e1dza\u010de r\u00fdchlo opotrebuje a zaobl\u00ed ostr\u00e9 hrany.<\/li>\n<li class=\"py-1 [&amp;&gt;p]:inline\" data-streamdown=\"list-item\"><span class=\"font-semibold\" data-streamdown=\"strong\"><strong>Chemick\u00e9 napadnutie (nalepovanie kovu)<\/strong>:<\/span>\u00a0Roztaven\u00e9 kovy m\u00f4\u017eu \u010dasom chemicky pri\u013en\u00fa\u0165 k povrchu formy alebo ho znehodnoti\u0165.<\/li>\n<li class=\"py-1 [&amp;&gt;p]:inline\" data-streamdown=\"list-item\"><span class=\"font-semibold\" data-streamdown=\"strong\"><strong>Kor\u00f3zia \u0161pecifick\u00e1 pre zliatinu<\/strong>:<\/span>\u00a0Hlin\u00edk p\u00f4sob\u00ed na n\u00e1strojov\u00fa oce\u013e chemicky v\u00fdrazne agres\u00edvnej\u0161ie ne\u017e zinok, preto je odolnos\u0165 proti kor\u00f3zii pri hlin\u00edkov\u00fdch form\u00e1ch prioritou.<\/li>\n<\/ul>\n<p>Vysok\u00e1 odolnos\u0165 proti opotrebovaniu je nevyhnutn\u00e1 na zachovanie \u00fazkych toleranci\u00ed a jemn\u00fdch detailov dutiny pri ka\u017edom z\u00e1bere.<\/p>\n<h3>Vplyv materi\u00e1lu n\u00e1stroja na kvalitu odliatku a povrch<\/h3>\n<p>Materi\u00e1l formy priamo ovplyv\u0148uje kvalitu hotov\u00e9ho dielu. R\u00fdchlos\u0165, akou oce\u013e ochladzuje tekut\u00fd kov, ovplyv\u0148uje <a href=\"https:\/\/moldiecasting.com\/sk\/die-casting-surface-treatment\/\">povrchov\u00fa \u00fapravu<\/a>  a zmra\u0161\u0165ovanie dielu. Tvrdos\u0165 a h\u00fa\u017eevnatos\u0165 z\u00e1rove\u0148 zabezpe\u010duj\u00fa, \u017ee si forma zachov\u00e1 presn\u00fd tvar aj po tis\u00edcoch cyklov.<\/p>\n<p>Ak forma zm\u00e4kne alebo sa na jej povrchu objavia trhliny, za\u010dne vyr\u00e1ba\u0165 diely so zl\u00fdm povrchom a v\u00e4\u010d\u0161\u00edm po\u010dtom ch\u00fdb d\u00e1vno predt\u00fdm, ne\u017e sa n\u00e1stroj skuto\u010dne zlom\u00ed. Jednoducho povedan\u00e9: s opotrebovan\u00edm formy kles\u00e1 aj kvalita odliatkov.<\/p>\n<h2>Triedy ocel\u00ed na formy a \u010fal\u0161ie materi\u00e1ly<\/h2>\n<p>V\u00fdber n\u00e1strojovej ocele pre dutiny foriem na tlakov\u00e9 liatie sa zvy\u010dajne obmedzuje na nieko\u013eko osved\u010den\u00fdch tried, z ktor\u00fdch ka\u017ed\u00e1 m\u00e1 svoje prednosti. \u0160peci\u00e1lne materi\u00e1ly maj\u00fa svoje vyu\u017eitie, no v odvetv\u00ed dominuj\u00fa ocele na pr\u00e1cu za tepla.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2367\" src=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-block-of-tool-steel-used-for-die-casting-mold-manufacturing.jpg\" alt=\"Blok n\u00e1strojovej ocele na v\u00fdrobu formy na tlakov\u00e9 liatie\" width=\"1600\" height=\"900\" srcset=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-block-of-tool-steel-used-for-die-casting-mold-manufacturing.jpg 1600w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-block-of-tool-steel-used-for-die-casting-mold-manufacturing-300x169.jpg 300w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-block-of-tool-steel-used-for-die-casting-mold-manufacturing-1024x576.jpg 1024w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-block-of-tool-steel-used-for-die-casting-mold-manufacturing-768x432.jpg 768w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-block-of-tool-steel-used-for-die-casting-mold-manufacturing-1536x864.jpg 1536w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-block-of-tool-steel-used-for-die-casting-mold-manufacturing-600x338.jpg 600w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/p>\n<h3><span class=\"font-semibold\" data-streamdown=\"strong\">Oce\u013e H13 a ekvivalentn\u00e9 ocele na pr\u00e1cu za tepla<\/span><\/h3>\n<ul class=\"list-inside list-disc whitespace-normal [li_&amp;]:pl-6\" data-streamdown=\"unordered-list\">\n<li class=\"py-1 [&amp;&gt;p]:inline\" data-streamdown=\"list-item\"><span class=\"font-semibold\" data-streamdown=\"strong\"><strong>H13 (DIN 1.2344)<\/strong>:<\/span>\u00a0T\u00e1to n\u00e1strojov\u00e1 oce\u013e je v\u0161eobecne uzn\u00e1van\u00fdm \u0161tandardom pre dutiny a jadr\u00e1 foriem na tlakov\u00e9 liatie. Pri pracovnej tvrdosti pon\u00faka v\u00fdborn\u00fa rovnov\u00e1hu odolnosti proti tepelnej \u00fanave, h\u00fa\u017eevnatosti a obrobite\u013enosti.<\/li>\n<li class=\"py-1 [&amp;&gt;p]:inline\" data-streamdown=\"list-item\"><span class=\"font-semibold\" data-streamdown=\"strong\"><strong>N\u00e1strojov\u00e1 oce\u013e 8407<\/strong>:<\/span>\u00a0Ide o pr\u00e9miov\u00fd, vysoko rafinovan\u00fd variant ocele H13. V\u010faka presnej\u0161ej kontrole chemick\u00e9ho zlo\u017eenia a vy\u0161\u0161ej \u010distote je najlep\u0161ou vo\u013ebou pre ve\u013ekos\u00e9riov\u00e9 hlin\u00edkov\u00e9 n\u00e1stroje, pri ktor\u00fdch s\u00fa sie\u0165ov\u00e9 trhliny v\u00fdznamn\u00fdm rizikom.<\/li>\n<li class=\"py-1 [&amp;&gt;p]:inline\" data-streamdown=\"list-item\"><span class=\"font-semibold\" data-streamdown=\"strong\"><strong>SKD61<\/strong>:<\/span>\u00a0Japonsk\u00fd bl\u00edzky ekvivalent ocele H13, ktor\u00fd \u010dasto \u0161pecifikuj\u00fa \u00e1zijsk\u00ed v\u00fdrobcovia a dod\u00e1vate\u013esk\u00e9 re\u0165azce.<\/li>\n<\/ul>\n<h3><span class=\"font-semibold\" data-streamdown=\"strong\">P20, NAK80 a \u010fal\u0161ie predkalen\u00e9 ocele<\/span><\/h3>\n<p><strong><span class=\"font-semibold\" data-streamdown=\"strong\">P20<\/span>\u00a0 a\u00a0<span class=\"font-semibold\" data-streamdown=\"strong\">NAK80<\/span><\/strong>\u00a0 s\u00fa predkalen\u00e9 ocele ur\u010den\u00e9 pre\u00a0<em>plastov\u00e9<\/em>\u00a0 vstrekovacie formy, nie na odlievanie kovov.<\/p>\n<p>Oce\u013e P20 sa ob\u010das pou\u017e\u00edva pri prototypoch na tlakov\u00e9 liatie v mal\u00fdch s\u00e9ri\u00e1ch, aby sa zn\u00ed\u017eili n\u00e1klady a dodacia lehota, no nevydr\u017e\u00ed dlhodob\u00fa tepeln\u00fa \u00fanavu. NAK80 sa v\u00fdborne le\u0161t\u00ed na poh\u013eadov\u00e9 povrchy, ale rovnako ako P20 nie je priamou n\u00e1hradou za H13. Ani jedna z t\u00fdchto tried nevydr\u017e\u00ed dlhodob\u00e9 tepeln\u00e9 cykly v hlin\u00edkov\u00fdch alebo zinkov\u00fdch v\u00fdrobn\u00fdch form\u00e1ch.<\/p>\n<h3><span class=\"font-semibold\" data-streamdown=\"strong\">Hlin\u00edkov\u00e9 a meden\u00e9 zliatiny pre kr\u00e1tke s\u00e9rie a lok\u00e1lne chladenie<\/span><\/h3>\n<ul class=\"list-inside list-disc whitespace-normal [li_&amp;]:pl-6\" data-streamdown=\"unordered-list\">\n<li class=\"py-1 [&amp;&gt;p]:inline\" data-streamdown=\"list-item\"><span class=\"font-semibold\" data-streamdown=\"strong\">Hlin\u00edkov\u00e9 formy:<\/span>\u00a0Hlin\u00edk sa obr\u00e1ba ove\u013ea r\u00fdchlej\u0161ie ne\u017e kalen\u00e1 n\u00e1strojov\u00e1 oce\u013e, \u010d\u00edm v\u00fdrazne skracuje dodacie lehoty a zni\u017euje n\u00e1klady na prototypov\u00e9 formy alebo ve\u013emi kr\u00e1tke s\u00e9rie. Ke\u010f\u017ee sa v\u0161ak r\u00fdchlo opotreb\u00fava, v\u00f4bec sa nehod\u00ed na ve\u013ekos\u00e9riov\u00fa v\u00fdrobu.<\/li>\n<li class=\"py-1 [&amp;&gt;p]:inline\" data-streamdown=\"list-item\"><span class=\"font-semibold\" data-streamdown=\"strong\"><strong>Ber\u00fdliov\u00e1 me\u010f<\/strong>:<\/span>\u00a0Vyzna\u010duje sa v\u00fdnimo\u010dnou tepelnou vodivos\u0165ou. Zriedka sa pou\u017e\u00edva na cel\u00fa formu, \u010dasto sa v\u0161ak obr\u00e1ba na vlo\u017eky a jadr\u00e1, ktor\u00e9 r\u00fdchlo odv\u00e1dzaj\u00fa teplo z hrub\u00fdch \u010dast\u00ed alebo hlbok\u00fdch jadier n\u00e1chyln\u00fdch na lok\u00e1lne prehrievanie.<\/li>\n<\/ul>\n<h2>V\u00fdber materi\u00e1lu pre jednotliv\u00e9 \u010dasti formy<\/h2>\n<p>Forma na tlakov\u00e9 liatie je zlo\u017eit\u00e1 zostava. Ke\u010f\u017ee jednotliv\u00e9 \u010dasti n\u00e1stroja zn\u00e1\u0161aj\u00fa ve\u013emi rozdielne mechanick\u00e9 a tepeln\u00e9 za\u0165a\u017eenie, kon\u0161trukt\u00e9ri volia pre r\u00f4zne komponenty materi\u00e1ly, ktor\u00e9 vyva\u017euj\u00fa v\u00fdkon a n\u00e1klady na n\u00e1stroj.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2369\" src=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-die-casting-mold-being-machined-from-tool-steel.jpg\" alt=\"Komponent jadra formy na tlakov\u00e9 liatie obr\u00e1ban\u00fd z n\u00e1strojovej ocele\" width=\"1600\" height=\"900\" srcset=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-die-casting-mold-being-machined-from-tool-steel.jpg 1600w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-die-casting-mold-being-machined-from-tool-steel-300x169.jpg 300w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-die-casting-mold-being-machined-from-tool-steel-1024x576.jpg 1024w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-die-casting-mold-being-machined-from-tool-steel-768x432.jpg 768w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-die-casting-mold-being-machined-from-tool-steel-1536x864.jpg 1536w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-die-casting-mold-being-machined-from-tool-steel-600x338.jpg 600w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/p>\n<h3>Dutina formy a jadr\u00e1<\/h3>\n<p>Dutina formy a <a href=\"https:\/\/moldiecasting.com\/sk\/blog\/core-pin-in-die-casting-mold-design-materials-and-performance\/\">jadr\u00e1<\/a> prich\u00e1dzaj\u00fa do priameho kontaktu so zliatinou. Musia odol\u00e1va\u0165 vysok\u00fdm teplot\u00e1m a zna\u010dnej sile roztaven\u00e9ho kovu pod vysok\u00fdm tlakom.<\/p>\n<p>Preto sa vyr\u00e1baj\u00fa v\u00fdhradne z pr\u00e9miovej ocele na pr\u00e1cu za tepla, ktor\u00e1 odol\u00e1va tepelnej \u00fanave a er\u00f3zii.<\/p>\n<h3>Z\u00e1klad\u0148a formy a kon\u0161truk\u010dn\u00e9 \u010dasti<\/h3>\n<p>Z\u00e1klad\u0148a dr\u017e\u00ed bloky dutiny na mieste a absorbuje ve\u013ek\u00fa up\u00ednaciu silu stroja. Ke\u010f\u017ee tieto kon\u0161truk\u010dn\u00e9 oce\u013eov\u00e9 \u010dasti neprich\u00e1dzaj\u00fa priamo do kontaktu s tekut\u00fdm kovom, nepotrebuj\u00fa drah\u00e9 ocele na pr\u00e1cu za tepla.<\/p>\n<p>Pri v\u00fdrobe ve\u013ekej formy na mieru aj \u0161tandardizovan\u00e9ho r\u00e1mu formy v\u00fdrobcovia zvy\u010dajne pou\u017e\u00edvaj\u00fa predkalen\u00e9 ocele, ako P20, alebo stredne uhl\u00edkov\u00e9 ocele, ktor\u00e9 poskytuj\u00fa h\u00fa\u017eevnatos\u0165 za ni\u017e\u0161iu cenu.<\/p>\n<h3>Vyhadzovacie kol\u00edky a orez\u00e1vacie n\u00e1stroje<\/h3>\n<p>Vyhadzovacie kol\u00edky vytl\u00e1\u010daj\u00fa stuhnut\u00fd kovov\u00fd diel z formy. Aby sa zabr\u00e1nilo zadieraniu, musia ma\u0165 ve\u013emi vysok\u00fa odolnos\u0165 proti opotrebovaniu; zvy\u010dajne sa vyr\u00e1baj\u00fa z nitridovanej ocele SKD61.<\/p>\n<p>Po vyhoden\u00ed dielu sa v mechanickom lise pou\u017eije samostatn\u00fd orez\u00e1vac\u00ed n\u00e1stroj na odstrihnutie vtokov, prepadov a prebyto\u010dn\u00e9ho materi\u00e1lu. Ke\u010f\u017ee je vystaven\u00fd intenz\u00edvnemu mechanick\u00e9mu strihu pri izbovej teplote, pou\u017e\u00edva ocele na pr\u00e1cu za studena s vysokou tvrdos\u0165ou (napr\u00edklad D2 alebo SKD11), nie zliatiny na tlakov\u00e9 liatie.<\/p>\n<h2>V\u00fdber materi\u00e1lu pod\u013ea odlievanej aplik\u00e1cie<\/h2>\n<p>Pri v\u00fdbere materi\u00e1lu formy treba vyv\u00e1\u017ei\u0165 tepeln\u00e9 za\u0165a\u017eenie odlievanej zliatiny, o\u010dak\u00e1van\u00fd objem v\u00fdroby a rozpo\u010det projektu. Pri rozhodovan\u00ed zv\u00e1\u017ete nasleduj\u00face faktory.<\/p>\n<h3><span class=\"font-semibold\" data-streamdown=\"strong\">Prisp\u00f4sobte formu odlievanej zliatine (hlin\u00edk alebo zinok)<\/span><\/h3>\n<ul class=\"list-inside list-disc whitespace-normal [li_&amp;]:pl-6\" data-streamdown=\"unordered-list\">\n<li class=\"py-1 [&amp;&gt;p]:inline\" data-streamdown=\"list-item\"><span class=\"font-semibold\" data-streamdown=\"strong\"><strong>Hlin\u00edk a hor\u010d\u00edk<\/strong>:<\/span>\u00a0Hlin\u00edk m\u00e1 vysok\u00fa teplotu tavenia a chemicky nap\u00e1da oce\u013e. Vznik\u00e1 tak extr\u00e9mne tepeln\u00e9 nam\u00e1hanie a riziko kor\u00f3zie, preto s\u00fa pr\u00e9miov\u00e9 ocele na pr\u00e1cu za tepla (napr\u00edklad H13 alebo 8407) v kombin\u00e1cii s d\u00f4kladn\u00fdm tepeln\u00fdm spracovan\u00edm nevyhnutn\u00e9. Hor\u010d\u00edk m\u00e1 o nie\u010do ni\u017e\u0161ie tepeln\u00e9 za\u0165a\u017eenie, no vy\u017eaduje podobne kvalitn\u00fa oce\u013e.<\/li>\n<li class=\"py-1 [&amp;&gt;p]:inline\" data-streamdown=\"list-item\"><span class=\"font-semibold\" data-streamdown=\"strong\"><strong>Zinok (napr. Zamak 3)<\/strong>:<\/span>\u00a0Zinok sa tav\u00ed pri ove\u013ea ni\u017e\u0161ej teplote. Tento \u201echladnej\u0161\u00ed\u201c proces za\u0165a\u017euje n\u00e1stroj v\u00fdrazne menej a predl\u017euje \u017eivotnos\u0165 formy aj pri pou\u017eit\u00ed \u0161tandardn\u00fdch tried ocele.<\/li>\n<\/ul>\n<h3><span class=\"font-semibold\" data-streamdown=\"strong\">Zoh\u013eadnite objem v\u00fdroby a geometriu dielu<\/span><\/h3>\n<ul class=\"list-inside list-disc whitespace-normal [li_&amp;]:pl-6\" data-streamdown=\"unordered-list\">\n<li class=\"py-1 [&amp;&gt;p]:inline\" data-streamdown=\"list-item\"><span class=\"font-semibold\" data-streamdown=\"strong\"><strong>Ve\u013ekos\u00e9riov\u00e1 v\u00fdroba<\/strong>:<\/span>\u00a0S\u00e9riov\u00e1 v\u00fdroba od\u00f4vod\u0148uje po\u010diato\u010dn\u00e9 n\u00e1klady na pr\u00e9miov\u00fa oce\u013e (napr\u00edklad 8407) a d\u00f4sledn\u00e9 tepeln\u00e9 spracovanie, preto\u017ee cena n\u00e1stroja sa rozpo\u010d\u00edta medzi st\u00e1tis\u00edce dielov.<\/li>\n<li class=\"py-1 [&amp;&gt;p]:inline\" data-streamdown=\"list-item\"><span class=\"font-semibold\" data-streamdown=\"strong\"><strong>Zlo\u017eit\u00e9 geometrie<\/strong>:<\/span>\u00a0Tenk\u00e9 steny alebo hlbok\u00e9 \u00fazke jadr\u00e1 vytv\u00e1raj\u00fa lok\u00e1lne tepeln\u00e9 nam\u00e1hanie. \u010casto si preto vy\u017eaduj\u00fa \u0161peci\u00e1lne vlo\u017eky z ber\u00fdliovej medi, ktor\u00e9 zabra\u0148uj\u00fa prehrievaniu, aj ke\u010f je zvy\u0161ok formy zo \u0161tandardnej ocele H13.<\/li>\n<\/ul>\n<h3><span class=\"font-semibold\" data-streamdown=\"strong\">Vyberte si medzi prototypov\u00fdm a v\u00fdrobn\u00fdm n\u00e1strojom<\/span><\/h3>\n<ul class=\"list-inside list-disc whitespace-normal [li_&amp;]:pl-6\" data-streamdown=\"unordered-list\">\n<li class=\"py-1 [&amp;&gt;p]:inline\" data-streamdown=\"list-item\"><span class=\"font-semibold\" data-streamdown=\"strong\"><strong>Prototypov\u00e9 formy<\/strong>:<\/span>\u00a0Ak potrebujete r\u00fdchlo a lacno overi\u0165 n\u00e1vrh dielu, ide\u00e1lne s\u00fa prototypov\u00e9 formy obr\u00e1ban\u00e9 z hlin\u00edka alebo m\u00e4kkej predkalenej ocele. S\u00fa lacnej\u0161ie a r\u00fdchlej\u0161ie sa obr\u00e1baj\u00fa, no vydr\u017eia iba kr\u00e1tke s\u00e9rie.<\/li>\n<li class=\"py-1 [&amp;&gt;p]:inline\" data-streamdown=\"list-item\"><span class=\"font-semibold\" data-streamdown=\"strong\"><strong>V\u00fdrobn\u00e1 forma<\/strong>:<\/span>\u00a0Po uzavret\u00ed n\u00e1vrhu dielu je invest\u00edcia do kalenej n\u00e1strojovej ocele na pr\u00e1cu za tepla jedinou schodnou cestou k dlhodobej rozmerovej stabilite a kvalite povrchu.<\/li>\n<\/ul>\n<h2>Kon\u0161truk\u010dn\u00e9 a tepeln\u00e9 \u00fapravy na ochranu formy<\/h2>\n<p>Trieda ocele ur\u010duje potenci\u00e1lnu \u017eivotnos\u0165 n\u00e1stroja, no o tom, \u010di ju forma dosiahne, rozhoduje rozlo\u017eenie chladenia, tepeln\u00e9 spracovanie a povrchov\u00e1 \u00faprava.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2368\" src=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-die-casting-mold-being-inspected-for-tolerance-in-a-die-spotting-press.jpg\" alt=\"Forma na tlakov\u00e9 liatie pri kontrole toleranci\u00ed v lise na l\u00edcovanie foriem\" width=\"1600\" height=\"900\" srcset=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-die-casting-mold-being-inspected-for-tolerance-in-a-die-spotting-press.jpg 1600w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-die-casting-mold-being-inspected-for-tolerance-in-a-die-spotting-press-300x169.jpg 300w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-die-casting-mold-being-inspected-for-tolerance-in-a-die-spotting-press-1024x576.jpg 1024w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-die-casting-mold-being-inspected-for-tolerance-in-a-die-spotting-press-768x432.jpg 768w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-die-casting-mold-being-inspected-for-tolerance-in-a-die-spotting-press-1536x864.jpg 1536w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/08\/a-die-casting-mold-being-inspected-for-tolerance-in-a-die-spotting-press-600x338.jpg 600w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/p>\n<h3>Rozlo\u017eenie chladenia, tepeln\u00e1 rovnov\u00e1ha a vlo\u017eky<\/h3>\n<p>Ak s\u00fa chladiace kan\u00e1ly pr\u00edli\u0161 \u010faleko od povrchu dutiny, kles\u00e1 \u00fa\u010dinnos\u0165 chladenia a teplo sa hromad\u00ed nerovnomerne, \u010do ur\u00fdch\u013euje tepeln\u00fa \u00fanavu v hor\u00facich miestach. Vyv\u00e1\u017een\u00e9 chladenie udr\u017eiava teplotu celej dutiny rovnomernej\u0161iu medzi jednotliv\u00fdmi cyklami.<\/p>\n<h3>Tepeln\u00e9 spracovanie a kontrola tvrdosti<\/h3>\n<p>Kalenie a pop\u00fa\u0161\u0165anie nastavia z\u00e1kladn\u00fa tvrdos\u0165 a h\u00fa\u017eevnatos\u0165 n\u00e1strojovej ocele pred kone\u010dn\u00fdm obr\u00e1ban\u00edm. Nitridovanie po obr\u00e1ban\u00ed vytv\u00e1ra vytvrden\u00fa povrchov\u00fa vrstvu, ktor\u00e1 zvy\u0161uje odolnos\u0165 proti opotrebovaniu a tepeln\u00fdm trhlin\u00e1m bez toho, aby cel\u00fd diel skreh\u010del.<\/p>\n<h3>Povrchov\u00e1 \u00faprava proti opotrebovaniu a na \u013eah\u0161ie uvo\u013enenie<\/h3>\n<p>PVD povlaky obmedzuj\u00fa nalepovanie kovu a zlep\u0161uj\u00fa uvo\u013e\u0148ovanie hlin\u00edkov\u00fdch odliatkov, \u010d\u00edm predl\u017euj\u00fa intervaly medzi \u010disteniami. Le\u0161tite\u013enos\u0165 z\u00e1kladnej ocele ovplyv\u0148uje dosiahnute\u013en\u00fa kvalitu povrchu dutiny, \u010do je d\u00f4le\u017eit\u00e9 najm\u00e4 pri poh\u013eadov\u00fdch dieloch.<\/p>\n<h2><span class=\"font-semibold\" data-streamdown=\"strong\">Vy\u0165a\u017ete z invest\u00edcie do n\u00e1stroja maximum s Moldie<\/span><\/h2>\n<p>V\u00fdber spr\u00e1vnej pr\u00e9miovej ocele je pre projekt k\u013e\u00fa\u010dov\u00fdm prv\u00fdm krokom, no bez spr\u00e1vneho tepeln\u00e9ho riadenia a presn\u00e9ho obr\u00e1bania pred\u010dasne zlyh\u00e1 aj ten najlep\u0161\u00ed materi\u00e1l.<\/p>\n<p>V Moldie prep\u00e1jame materi\u00e1lov\u00e9 in\u017einierstvo s v\u00fdrobou. N\u00e1\u0161 technick\u00fd t\u00edm pou\u017e\u00edva pokro\u010dil\u00e9\u00a0<a class=\"wrap-anywhere font-medium text-primary underline\" href=\"https:\/\/moldiecasting.com\/sk\/die-casting-mold-design\/\" target=\"_blank\" rel=\"noopener noreferrer\" data-incomplete=\"false\" data-streamdown=\"link\">n\u00e1vrhy foriem na tlakov\u00e9 liatie<\/a>\u00a0vr\u00e1tane optimalizovan\u00e9ho chladenia a anal\u00fdzy toku kovu vo forme, aby predch\u00e1dzal tepeln\u00fdm trhlin\u00e1m a maximalizoval \u017eivotnos\u0165 zvolenej ocele. Od \u00favodnej DFM anal\u00fdzy a\u017e po kone\u010dn\u00e9 obr\u00e1banie ve\u013ekos\u00e9riov\u00fdch\u00a0<a class=\"wrap-anywhere font-medium text-primary underline\" href=\"https:\/\/moldiecasting.com\/sk\/die-casting-dies\/\" target=\"_blank\" rel=\"noopener noreferrer\" data-incomplete=\"false\" data-streamdown=\"link\">foriem na tlakov\u00e9 liatie<\/a>, zabezpe\u010dujeme \u00fazke tolerancie pri ka\u017edom cykle.<\/p>\n<p><span class=\"font-semibold\" data-streamdown=\"strong\">Chcete za\u010da\u0165 nov\u00fd projekt?<\/span>\u00a0<span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/moldiecasting.com\/sk\/contact-us\/\">Kontaktujte n\u00e1\u0161 kon\u0161truk\u010dn\u00fd t\u00edm<\/a><\/span> a z\u00edskajte bezplatn\u00fa kontrolu n\u00e1vrhu a odborn\u00fa konzult\u00e1ciu v\u00fdberu materi\u00e1lu.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Materi\u00e1l formy na tlakov\u00e9 liatie je jedn\u00fdm z hlavn\u00fdch faktorov ovplyv\u0148uj\u00facich samotn\u00fd proces. Materi\u00e1ly musia bez prasknutia \u010di straty tvaru odol\u00e1va\u0165 roztaven\u00e9mu kovu, vysok\u00e9mu vstrekovaciemu tlaku a tis\u00edcom cyklov zahrievania a chladenia. Spr\u00e1vny v\u00fdber z\u00e1vis\u00ed od zos\u00faladenia vlastnost\u00ed materi\u00e1lu s odlievanou zliatinou, objemom v\u00fdroby a sp\u00f4sobom chladenia a \u00fadr\u017eby formy po\u010das jej \u017eivotnosti. T\u00e1to pr\u00edru\u010dka [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":18673,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"Materi\u00e1l formy na tlakov\u00e9 liatie: v\u00fdber a vlastnosti","_seopress_titles_desc":"Zistite, ako vybra\u0165 odoln\u00e9 materi\u00e1ly foriem na tlakov\u00e9 liatie s oh\u013eadom na v\u00fdkon, tepeln\u00fa odolnos\u0165 a dlhodob\u00fa kvalitu v\u00fdroby.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"iawp_total_views":173,"footnotes":""},"categories":[189],"tags":[],"class_list":["post-18217","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/moldiecasting.com\/sk\/wp-json\/wp\/v2\/posts\/18217","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/moldiecasting.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/moldiecasting.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/moldiecasting.com\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/moldiecasting.com\/sk\/wp-json\/wp\/v2\/comments?post=18217"}],"version-history":[{"count":5,"href":"https:\/\/moldiecasting.com\/sk\/wp-json\/wp\/v2\/posts\/18217\/revisions"}],"predecessor-version":[{"id":20615,"href":"https:\/\/moldiecasting.com\/sk\/wp-json\/wp\/v2\/posts\/18217\/revisions\/20615"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/moldiecasting.com\/sk\/wp-json\/wp\/v2\/media\/18673"}],"wp:attachment":[{"href":"https:\/\/moldiecasting.com\/sk\/wp-json\/wp\/v2\/media?parent=18217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/moldiecasting.com\/sk\/wp-json\/wp\/v2\/categories?post=18217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/moldiecasting.com\/sk\/wp-json\/wp\/v2\/tags?post=18217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}