{"id":23474,"date":"2024-08-29T13:15:43","date_gmt":"2024-08-29T05:15:43","guid":{"rendered":"https:\/\/moldiecasting.com\/?p=23474"},"modified":"2026-10-09T02:21:15","modified_gmt":"2026-10-08T18:21:15","slug":"high-pressure-die-casting","status":"publish","type":"post","link":"https:\/\/moldiecasting.com\/cs\/blog\/high-pressure-die-casting\/","title":{"rendered":"Vysokotlak\u00e9 tlakov\u00e9 lit\u00ed: p\u0159esnost a efektivita"},"content":{"rendered":"

\"Kovov\u00e1<\/p>\n

Co je vysokotlak\u00e9 tlakov\u00e9 lit\u00ed?<\/strong><\/h2>\n

Vysokotlak\u00e9 tlakov\u00e9 lit\u00ed (HPDC) je v\u00fdrobn\u00ed proces, p\u0159i n\u011bm\u017e se roztaven\u00fd kov vst\u0159ikuje pod vysok\u00fdm tlakem do ocelov\u00e9 formy, neboli kokily, a vyr\u00e1b\u011bj\u00ed se tak kovov\u00e9 d\u00edly. Tato metoda se \u0161iroce pou\u017e\u00edv\u00e1 k v\u00fdrob\u011b slo\u017eit\u00fdch a p\u0159esn\u00fdch sou\u010d\u00e1st\u00ed s kvalitn\u00edm povrchem a p\u0159esn\u00fdmi rozm\u011bry.<\/p>\n

Vysokotlak\u00e9 tlakov\u00e9 lit\u00ed je v podstat\u011b synonymem pro \u00a0<\/a>b\u011b\u017en\u00e9 tlakov\u00e9 lit\u00ed<\/u><\/a>, proto\u017ee jde o standardn\u00ed vysokotlakou metodu pou\u017e\u00edvanou v pr\u016fmyslu. Rozd\u00edly spo\u010d\u00edvaj\u00ed p\u0159edev\u0161\u00edm v konkr\u00e9tn\u00edch technik\u00e1ch a variant\u00e1ch, kter\u00e9 se vol\u00ed podle materi\u00e1lu a po\u017eadavk\u016f v\u00fdroby.<\/p>\n

V p\u0159edchoz\u00edm \u010dl\u00e1nku jsme stru\u010dn\u011b p\u0159edstavili tlakov\u00e9 lit\u00ed. Zde se podrobn\u011bji zam\u011b\u0159\u00edme na tento proces a jeho aplikace.<\/p>\n

Jak prob\u00edh\u00e1 proces HPDC?<\/strong><\/h3>\n

Proces HPDC za\u010d\u00edn\u00e1 pe\u010dlivou p\u0159\u00edpravou formy: forma se vy\u010dist\u00ed, zkontroluje, zda nem\u00e1 vady, a pokryje mazivem pro regulaci teploty a snadn\u011bj\u0161\u00ed vyjmut\u00ed odlitku.<\/p>\n

Pot\u00e9 se forma p\u0159edeh\u0159eje, aby se zajistilo spr\u00e1vn\u00e9 pln\u011bn\u00ed a tuhnut\u00ed kovu. P\u0159i vst\u0159ikov\u00e1n\u00ed se roztaven\u00fd kov nalije do vst\u0159ikovac\u00ed komory propojen\u00e9 s dutinou formy a pod vysok\u00fdm tlakem se vtla\u010d\u00ed do formy. Tlak obvykle dosahuje 1\u00a0500 a\u017e 25\u00a0400 psi (10 a\u017e 175 MPa).<\/p>\n

Vysok\u00fd vst\u0159ikovac\u00ed tlak zajist\u00ed vypln\u011bn\u00ed formy i u slo\u017eit\u00fdch tvar\u016f nebo tenkost\u011bnn\u00fdch \u010d\u00e1st\u00ed. Kov p\u0159i kontaktu s chladn\u00fdm povrchem formy rychle tuhne a tlak se udr\u017euje, aby se omezila p\u00f3rovitost a zajistila rozm\u011brov\u00e1 p\u0159esnost.<\/p>\n

Po ztuhnut\u00ed se poloviny formy odd\u011bl\u00ed a odlitek se vyjme pomoc\u00ed vyhazovac\u00edch kol\u00edk\u016f. N\u00e1sledn\u011b se odstran\u00ed p\u0159ebyte\u010dn\u00fd materi\u00e1l, nap\u0159\u00edklad vtoky, rozv\u00e1d\u011bc\u00ed kan\u00e1ly a p\u0159etoky. V z\u00e1v\u011bre\u010dn\u00e9 f\u00e1zi se z odlitku odd\u011bl\u00ed zb\u00fdvaj\u00edc\u00ed kovov\u00fd odpad, \u010dasto pomoc\u00ed speci\u00e1ln\u00ed o\u0159ez\u00e1vac\u00ed formy v lisu. Tento odpad se obvykle recykluje op\u011btovn\u00fdm roztaven\u00edm.<\/p>\n

Jak\u00e9 jsou typy vysokotlak\u00e9ho tlakov\u00e9ho lit\u00ed?<\/strong><\/h2>\n

\"Kovov\u00e9<\/p>\n

Vysokotlak\u00e9 tlakov\u00e9 lit\u00ed (HPDC) lze rozd\u011blit podle zp\u016fsobu vst\u0159ikov\u00e1n\u00ed roztaven\u00e9ho kovu do formy. Dva z\u00e1kladn\u00ed typy jsou tlakov\u00e9 lit\u00ed v hork\u00e9 komo\u0159e<\/strong>\u00a0a tlakov\u00e9 lit\u00ed ve studen\u00e9 komo\u0159e<\/strong>.<\/p>\n

Tlakov\u00e9 lit\u00ed v hork\u00e9 komo\u0159e<\/strong><\/h3>\n

P\u0159i tlakov\u00e9m lit\u00ed v hork\u00e9 komo\u0159e se kov tav\u00ed v peci, kter\u00e1 je sou\u010d\u00e1st\u00ed lic\u00edho stroje. Roztaven\u00fd kov se p\u00edstem a hus\u00edm krkem vst\u0159ikuje do dutiny formy. Tato metoda je efektivn\u00ed u kov\u016f s n\u00edzk\u00fdm bodem t\u00e1n\u00ed.<\/p>\n

Obvykle se pou\u017e\u00edv\u00e1 pro slitiny s ni\u017e\u0161\u00ed teplotou t\u00e1n\u00ed, nap\u0159\u00edklad zinek, ho\u0159\u010d\u00edk a olovo.<\/p>\n

Proces je rychlej\u0161\u00ed, proto\u017ee kov nen\u00ed nutn\u00e9 p\u0159en\u00e1\u0161et z extern\u00ed pece, co\u017e zkracuje v\u00fdrobn\u00ed cyklus.<\/p>\n

Nehod\u00ed se v\u0161ak pro kovy s vysok\u00fdm bodem t\u00e1n\u00ed, kter\u00e9 mohou po\u0161kodit \u010d\u00e1sti stroje, nap\u0159\u00edklad hus\u00ed krk a trysku.<\/p>\n

Tlakov\u00e9 lit\u00ed ve studen\u00e9 komo\u0159e<\/strong><\/h3>\n

P\u0159i tlakov\u00e9m lit\u00ed ve studen\u00e9 komo\u0159e se kov tav\u00ed v odd\u011blen\u00e9 peci a pot\u00e9 se nab\u011bra\u010dkou p\u0159enese do lic\u00edho stroje. Roztaven\u00fd kov se p\u00edstem vst\u0159ikuje do dutiny formy.<\/p>\n

Tato metoda je ide\u00e1ln\u00ed pro kovy s vy\u0161\u0161\u00edm bodem t\u00e1n\u00ed, nap\u0159\u00edklad hlin\u00edk, mosaz a n\u011bkter\u00e9 ho\u0159\u010d\u00edkov\u00e9 slitiny.<\/p>\n

Lze p\u0159i n\u00ed zpracov\u00e1vat kovy s vysok\u00fdm bodem t\u00e1n\u00ed, kter\u00e9 nejsou vhodn\u00e9 pro procesy v hork\u00e9 komo\u0159e.<\/p>\n

Dodate\u010dn\u00fd krok p\u0159enosu roztaven\u00e9ho kovu z pece do stroje m\u016f\u017ee proces oproti lit\u00ed v hork\u00e9 komo\u0159e zpomalit.<\/p>\n

Jak\u00e9 jsou v\u00fdhody vysokotlak\u00e9ho tlakov\u00e9ho lit\u00ed?<\/strong><\/h2>\n

\"Slo\u017eit\u00fd<\/p>\n

V\u00fdhody vysokotlak\u00e9ho tlakov\u00e9ho lit\u00ed (HPDC) vypl\u00fdvaj\u00ed ze schopnosti efektivn\u011b vyr\u00e1b\u011bt kvalitn\u00ed kovov\u00e9 sou\u010d\u00e1sti slo\u017eit\u00fdch tvar\u016f.<\/p>\n

Vysok\u00e1 produktivita<\/strong><\/p>\n

    \n
  • Rychlost procesu<\/strong>: HPDC vst\u0159ikuje roztaven\u00fd kov do formy pod vysok\u00fdm tlakem, co\u017e umo\u017e\u0148uje jej\u00ed rychl\u00e9 napln\u011bn\u00ed a rychl\u00e9 ztuhnut\u00ed kovu. Tato rychlost je z\u00e1sadn\u00ed p\u0159i hromadn\u00e9 v\u00fdrob\u011b a umo\u017e\u0148uje vyrobit velk\u00e9 mno\u017estv\u00ed d\u00edl\u016f v kr\u00e1tk\u00e9m \u010dase.<\/li>\n<\/ul>\n

    Rozm\u011brov\u00e1 p\u0159esnost<\/strong><\/p>\n

      \n
    • \u0158\u00edzen\u00fd proces<\/strong>: Vysok\u00fd tlak zajist\u00ed, \u017ee roztaven\u00fd kov vypln\u00ed v\u0161echny \u010d\u00e1sti formy a vzniknou d\u00edly s jednotn\u00fdmi rozm\u011bry a vysokou p\u0159esnost\u00ed. Sni\u017euje se pot\u0159eba dal\u0161\u00edho obr\u00e1b\u011bn\u00ed nebo dokon\u010dov\u00e1n\u00ed, co\u017e \u0161et\u0159\u00ed \u010das i n\u00e1klady.<\/li>\n<\/ul>\n

      Slo\u017eit\u00e9 tvary a tenk\u00e9 st\u011bny<\/strong><\/p>\n

        \n
      • Vysokotlak\u00e9 vst\u0159ikov\u00e1n\u00ed<\/strong>: D\u00edky vst\u0159ikov\u00e1n\u00ed kovu pod vysok\u00fdm tlakem lze vyr\u00e1b\u011bt slo\u017eit\u00e9 tvary a jemn\u00e9 detaily, kter\u00fdch by se jin\u00fdmi metodami odl\u00e9v\u00e1n\u00ed dosahovalo obt\u00ed\u017en\u011b. Umo\u017e\u0148uje tak\u00e9 v\u00fdrobu tenkost\u011bnn\u00fdch sou\u010d\u00e1st\u00ed s tlou\u0161\u0165kou a\u017e 1 mm, co\u017e sni\u017euje hmotnost hotov\u00fdch v\u00fdrobk\u016f.<\/li>\n<\/ul>\n

        Hladk\u00fd povrch<\/strong><\/p>\n

          \n
        • Kvalita formy a procesu<\/strong>: Odlitky vych\u00e1zej\u00ed z formy s hladk\u00fdm povrchem, co\u017e je v\u00fdhodn\u00e9 pro aplikace s vysok\u00fdmi estetick\u00fdmi n\u00e1roky nebo s po\u017eadavkem na n\u00e1slednou povrchovou \u00fapravu, nap\u0159\u00edklad galvanick\u00e9 pokoven\u00ed. Omezuje se tak pot\u0159eba dal\u0161\u00edch dokon\u010dovac\u00edch operac\u00ed.<\/li>\n<\/ul>\n

          Efektivn\u00ed vyu\u017eit\u00ed materi\u00e1lu a m\u00e9n\u011b odpadu<\/strong><\/p>\n

            \n
          • Minim\u00e1ln\u00ed ztr\u00e1ty materi\u00e1lu<\/strong>: HPDC je proces bl\u00edzk\u00fd kone\u010dn\u00e9mu tvaru: d\u00edly se vyr\u00e1b\u011bj\u00ed t\u00e9m\u011b\u0159 v kone\u010dn\u00fdch rozm\u011brech, tak\u017ee vznik\u00e1 m\u00e9n\u011b odpadu ne\u017e p\u0159i tradi\u010dn\u00edm obr\u00e1b\u011bn\u00ed, p\u0159i n\u011bm\u017e se p\u0159ebyte\u010dn\u00fd materi\u00e1l od\u0159ez\u00e1v\u00e1.<\/li>\n<\/ul>\n

            Vhodnost pro ne\u017eelezn\u00e9 kovy<\/strong><\/p>\n

              \n
            • Flexibilita materi\u00e1lu<\/strong>: HPDC je vhodn\u00e9 pro \u0161irokou \u0161k\u00e1lu ne\u017eelezn\u00fdch kov\u016f v\u010detn\u011b hlin\u00edku, zinku a ho\u0159\u010d\u00edku. V\u00fdrobci tak mohou vyb\u00edrat materi\u00e1l podle konkr\u00e9tn\u00edch po\u017eadavk\u016f, nap\u0159\u00edklad hmotnosti, pevnosti a odolnosti proti korozi.<\/li>\n<\/ul>\n

              Odoln\u00e9 formy<\/strong><\/p>\n

                \n
              • Dlouh\u00e1 \u017eivotnost<\/strong>: Formy pro HPDC se vyr\u00e1b\u011bj\u00ed z odoln\u00fdch materi\u00e1l\u016f a sn\u00e1\u0161ej\u00ed vysok\u00e9 tlaky i teploty procesu. Lze je opakovan\u011b pou\u017e\u00edvat v mnoha v\u00fdrobn\u00edch cyklech, \u010d\u00edm\u017e se postupn\u011b sni\u017euj\u00ed n\u00e1klady na jeden d\u00edl.<\/li>\n<\/ul>\n

                Jak\u00e9 jsou nev\u00fdhody vysokotlak\u00e9ho tlakov\u00e9ho lit\u00ed?<\/strong><\/h2>\n

                Vysokotlak\u00e9 tlakov\u00e9 lit\u00ed (HPDC) m\u00e1 n\u011bkolik nev\u00fdhod, kter\u00e9 mohou omezit jeho vhodnost pro ur\u010dit\u00e9 aplikace. Mezi hlavn\u00ed pat\u0159\u00ed:<\/p>\n

                Vysok\u00e9 po\u010d\u00e1te\u010dn\u00ed n\u00e1klady na n\u00e1stroje<\/strong>: Po\u0159\u00edzen\u00ed za\u0159\u00edzen\u00ed a n\u00e1stroj\u016f pro HPDC je n\u00e1kladn\u00e9, proto\u017ee jsou pot\u0159eba slo\u017eit\u00e9 a p\u0159esn\u00e9 formy. Ekonomicky se proto vyplat\u00ed p\u0159edev\u0161\u00edm velkos\u00e9riov\u00e1 v\u00fdroba, v n\u00ed\u017e se po\u010d\u00e1te\u010dn\u00ed investice rozlo\u017e\u00ed na velk\u00fd po\u010det d\u00edl\u016f.P\u00f3rovitost<\/strong>: Rychl\u00e9 chlazen\u00ed a vysokotlak\u00e9 vst\u0159ikov\u00e1n\u00ed mohou zp\u016fsobit p\u00f3rovitost odlitk\u016f. Drobn\u00e9 vzduchov\u00e9 kapsy \u010di dutiny mohou zhor\u0161it mechanick\u00e9 vlastnosti a struktur\u00e1ln\u00ed integritu sou\u010d\u00e1sti. K omezen\u00ed vad je proto nutn\u00e9 pe\u010dliv\u011b \u0159\u00eddit proces.Omezen\u00ed materi\u00e1lu<\/strong>: HPDC se obecn\u011b omezuje na ne\u017eelezn\u00e9 kovy, nap\u0159\u00edklad hlin\u00edk, zinek a ho\u0159\u010d\u00edk. Kv\u016fli vy\u0161\u0161\u00edm teplot\u00e1m taven\u00ed a opot\u0159eben\u00ed forem nen\u00ed tento proces vhodn\u00fd pro \u017eelezn\u00e9 kovy.<\/p>\n

                Konstruk\u010dn\u00ed omezen\u00ed<\/strong>: Proces klade ur\u010dit\u00e1 omezen\u00ed na konstrukci, zejm\u00e9na na \u00fakosy, tlou\u0161\u0165ku st\u011bn a d\u011blic\u00ed roviny. To m\u016f\u017ee vy\u017eadovat dal\u0161\u00ed \u00fapravy n\u00e1vrhu a omezovat slo\u017eitost vyr\u00e1b\u011bn\u00fdch d\u00edl\u016f.Nevhodn\u00e9 pro malos\u00e9riovou v\u00fdrobu<\/strong>: Vzhledem k vysok\u00fdm n\u00e1klad\u016fm na n\u00e1stroje a p\u0159\u00edpravu nen\u00ed HPDC p\u0159i mal\u00e9m objemu v\u00fdroby n\u00e1kladov\u011b efektivn\u00ed. Nejl\u00e9pe se hod\u00ed pro velkos\u00e9riovou v\u00fdrobu, kde lze n\u00e1klady rozlo\u017eit na velk\u00e9 mno\u017estv\u00ed kus\u016f.Dopady na \u017eivotn\u00ed prost\u0159ed\u00ed<\/strong>: Vysokotlak\u00e9 stroje a tavic\u00ed pece spot\u0159ebov\u00e1vaj\u00ed zna\u010dn\u00e9 mno\u017estv\u00ed energie a mohou vytv\u00e1\u0159et emise. Pro zm\u00edrn\u011bn\u00ed dopad\u016f na \u017eivotn\u00ed prost\u0159ed\u00ed jsou d\u016fle\u017eit\u00e9 udr\u017eiteln\u00e9 postupy, nap\u0159\u00edklad recyklace kovov\u00e9ho odpadu a optimalizace spot\u0159eby energie.<\/p>\n

                Konstruk\u010dn\u00ed hlediska p\u0159i navrhov\u00e1n\u00ed forem pro HPDC<\/strong><\/h2>\n

                P\u0159i navrhov\u00e1n\u00ed forem pro vysokotlak\u00e9 tlakov\u00e9 lit\u00ed je t\u0159eba zohlednit t\u0159i hlavn\u00ed oblasti: uspo\u0159\u00e1d\u00e1n\u00ed dutiny a j\u00e1dra, \u00fa\u010dinnost chladic\u00edho a vst\u0159ikovac\u00edho syst\u00e9mu a v\u00fdb\u011br vhodn\u00e9ho materi\u00e1lu formy.<\/p>\n

                Dutina a j\u00e1dro<\/strong><\/h3>\n

                Dutina a j\u00e1dro jsou dv\u011b hlavn\u00ed \u010d\u00e1sti formy. Dutina je prostor, do kter\u00e9ho se vl\u00e9v\u00e1 roztaven\u00fd kov, zat\u00edmco j\u00e1dro vytv\u00e1\u0159\u00ed vnit\u0159n\u00ed geometrii odlitku. Je d\u016fle\u017eit\u00e9 navrhnout je tak, aby odolaly vysok\u00e9mu tlaku bez deformace.<\/p>\n

                Vyv\u00e1\u017een\u00e9 uspo\u0159\u00e1d\u00e1n\u00ed dutiny a j\u00e1dra je d\u016fle\u017eit\u00e9 pro v\u00fdrobu p\u0159esn\u00fdch a slo\u017eit\u00fdch d\u00edl\u016f. Je t\u0159eba zohlednit tlou\u0161\u0165ku st\u011bn, d\u011blic\u00ed roviny a \u00fakosy, kter\u00e9 usnadn\u00ed vyjmut\u00ed hotov\u00e9ho odlitku.<\/p>\n

                Chladic\u00ed syst\u00e9my<\/strong><\/h3>\n

                Spr\u00e1vn\u00e9 chlazen\u00ed je z\u00e1sadn\u00ed pro efektivitu a kvalitu tlakov\u00e9ho lit\u00ed. Chladic\u00ed syst\u00e9my urychluj\u00ed tuhnut\u00ed roztaven\u00e9ho kovu, zkracuj\u00ed v\u00fdrobn\u00ed cyklus a zvy\u0161uj\u00ed produktivitu.<\/p>\n

                Chladic\u00ed kan\u00e1ly se \u010dasto integruj\u00ed p\u0159\u00edmo do formy a slou\u017e\u00ed k \u0159\u00edzen\u00ed jej\u00ed teploty. \u00da\u010dinn\u00e9 chlazen\u00ed omezuje tepeln\u00e9 nam\u00e1h\u00e1n\u00ed a p\u0159edch\u00e1z\u00ed vad\u00e1m hotov\u00e9ho v\u00fdrobku. Kan\u00e1ly je t\u0159eba pravideln\u011b udr\u017eovat, aby nedo\u0161lo k ucp\u00e1n\u00ed a zhor\u0161en\u00ed chladic\u00edho v\u00fdkonu.<\/p>\n

                Materi\u00e1ly forem<\/strong><\/h3>\n

                Spr\u00e1vn\u00fd v\u00fdb\u011br materi\u00e1lu formy je d\u016fle\u017eit\u00fd pro jej\u00ed \u017eivotnost i v\u00fdkon. Forma mus\u00ed odol\u00e1vat vysok\u00e9mu tlaku, teplot\u00e1m a opakovan\u00fdm cykl\u016fm bez v\u00fdrazn\u00e9ho opot\u0159eben\u00ed.<\/p>\n

                Formy se obvykle vyr\u00e1b\u011bj\u00ed z kvalitn\u00edch \u017e\u00e1ruvzdorn\u00fdch ocel\u00ed. Materi\u00e1l formy ovliv\u0148uje celkov\u00e9 n\u00e1klady, \u017eivotnost i kvalitu odlitku. Investice do kvalitn\u00edho materi\u00e1lu m\u016f\u017ee \u010dasem sn\u00ed\u017eit prostoje a n\u00e1klady na \u00fadr\u017ebu.<\/p>\n

                Jak\u00e9 jsou aplikace vysokotlak\u00e9ho tlakov\u00e9ho lit\u00ed?<\/strong><\/h2>\n

                \"Obr\u00e1b\u011bn\u00e9<\/strong><\/p>\n

                Automobilov\u00fd pr\u016fmysl<\/strong>: HPDC se \u010dasto pou\u017e\u00edv\u00e1 k v\u00fdrob\u011b sou\u010d\u00e1st\u00ed motor\u016f, sk\u0159\u00edn\u00ed p\u0159evodovek a dal\u0161\u00edch d\u016fle\u017eit\u00fdch d\u00edl\u016f d\u00edky vysok\u00e9 p\u0159esnosti a spolehlivosti.<\/p>\n

                Leteck\u00fd a kosmick\u00fd pr\u016fmysl<\/strong>: Touto metodou lze vyr\u00e1b\u011bt lehk\u00e9 a odoln\u00e9 sou\u010d\u00e1sti letadel, v\u010detn\u011b konstruk\u010dn\u00edch d\u00edl\u016f a kryt\u016f.<\/p>\n

                Elektronika<\/strong>: Chladi\u010de, kryty a dal\u0161\u00ed elektronick\u00e9 sou\u010d\u00e1sti t\u011b\u017e\u00ed z vysok\u00e9 p\u0159esnosti a kvalitn\u00edho povrchu, kter\u00e9 HPDC nab\u00edz\u00ed.<\/p>\n

                Spot\u0159ebn\u00ed zbo\u017e\u00ed<\/strong>: Tlakov\u00fdm lit\u00edm se vyr\u00e1b\u011bj\u00ed tak\u00e9 kryty elektrick\u00e9ho n\u00e1\u0159ad\u00ed a sou\u010d\u00e1sti kuchy\u0148sk\u00fdch spot\u0159ebi\u010d\u016f, kter\u00e9 vy\u017eaduj\u00ed detailn\u00ed a robustn\u00ed konstrukci.<\/p>\n

                Jak\u00e9 inovativn\u00ed metody odl\u00e9v\u00e1n\u00ed existuj\u00ed krom\u011b HPDC?<\/strong><\/h2>\n

                Vedle tradi\u010dn\u00edch metod vysokotlak\u00e9ho tlakov\u00e9ho lit\u00ed se objevily inovativn\u00ed techniky, kter\u00e9 zlep\u0161uj\u00ed proces a \u0159e\u0161\u00ed konkr\u00e9tn\u00ed probl\u00e9my. Pat\u0159\u00ed k nim vakuov\u00e9 tlakov\u00e9 lit\u00ed, lisovac\u00ed lit\u00ed a zpracov\u00e1n\u00ed kovu v polotuh\u00e9m stavu.
                \nVakuov\u00e9 tlakov\u00e9 lit\u00ed<\/strong>\u00a0p\u0159ed vst\u0159\u00edknut\u00edm roztaven\u00e9ho kovu vytvo\u0159\u00ed v dutin\u011b formy vakuum. Omezuje se t\u00edm zachycen\u00ed plynu a zlep\u0161uj\u00ed mechanick\u00e9 vlastnosti i kvalita povrchu. Metoda je zvl\u00e1\u0161t\u011b vhodn\u00e1 pro tenkost\u011bnn\u00e9 sou\u010d\u00e1sti a \u010dasto se pou\u017e\u00edv\u00e1 v automobilov\u00e9m a leteck\u00e9m pr\u016fmyslu.
                \nLisovac\u00ed lit\u00ed<\/strong>\u00a0je dal\u0161\u00ed pokro\u010dil\u00e1 metoda, p\u0159i n\u00ed\u017e se roztaven\u00fd kov vst\u0159\u00edkne do formy pod vysok\u00fdm tlakem a b\u011bhem tuhnut\u00ed se na n\u011bj p\u016fsob\u00ed dodate\u010dn\u00fdm tlakem. Tato technika omezuje p\u00f3rovitost a zlep\u0161uje mechanick\u00e9 vlastnosti v\u00fdrobku, proto se hod\u00ed pro konstruk\u010dn\u00ed sou\u010d\u00e1sti.
                \nZpracov\u00e1n\u00ed kovu v polotuh\u00e9m stavu (SSM)<\/strong>\u00a0spo\u010d\u00edv\u00e1 v \u010d\u00e1ste\u010dn\u00e9m ztuhnut\u00ed kovu p\u0159ed vst\u0159ikov\u00e1n\u00edm, tak\u017ee vznikne sm\u011bs podobn\u00e1 ka\u0161i. Umo\u017e\u0148uje l\u00e9pe \u0159\u00eddit tok kovu, omezit vady a zlep\u0161it mechanick\u00e9 vlastnosti odlitku.<\/p>\n

                \u010casto kladen\u00e9 ot\u00e1zky<\/strong><\/h2>\n

                Jak\u00e9 kovy se p\u0159i HPDC b\u011b\u017en\u011b pou\u017e\u00edvaj\u00ed?<\/strong><\/h3>\n

                Mezi kovy nej\u010dast\u011bji pou\u017e\u00edvan\u00e9 p\u0159i HPDC pat\u0159\u00ed:<\/p>\n

                  \n
                • Slitiny hlin\u00edku: Pat\u0159\u00ed k nejpou\u017e\u00edvan\u011bj\u0161\u00edm kov\u016fm p\u0159i HPDC d\u00edky v\u00fdborn\u00e9 kombinaci vlastnost\u00ed.<\/li>\n
                • Slitiny ho\u0159\u010d\u00edku: Jsou st\u00e1le obl\u00edben\u011bj\u0161\u00ed d\u00edky n\u00edzk\u00e9 hmotnosti, zejm\u00e9na v automobilov\u00e9m pr\u016fmyslu.<\/li>\n
                • Slitiny zinku: \u010casto se pou\u017e\u00edvaj\u00ed pro dobrou sl\u00e9vatelnost a n\u00edzk\u00fd bod t\u00e1n\u00ed.<\/li>\n
                • Slitiny m\u011bdi: Pou\u017e\u00edvaj\u00ed se v n\u011bkter\u00fdch aplikac\u00edch, i kdy\u017e m\u00e9n\u011b \u010dasto ne\u017e hlin\u00edk nebo zinek.<\/li>\n<\/ul>\n

                  Mezi konkr\u00e9tn\u00ed slitiny a jejich pou\u017eit\u00ed pat\u0159\u00ed:<\/p>\n

                    \n
                  • A380 (slitina hlin\u00edku): \u0160iroce se pou\u017e\u00edv\u00e1 nap\u0159\u00edklad pro bloky motor\u016f, automobilov\u00e9 d\u00edly a kryty.<\/li>\n
                  • 383 (slitina hlin\u00edku): Vhodn\u00e1 pro tenkost\u011bnn\u00e9 d\u00edly a slo\u017eit\u00e9 konstrukce.<\/li>\n
                  • B390 (slitina hlin\u00edku): Pou\u017e\u00edv\u00e1 se pro ozuben\u00e1 kola, p\u00edsty a sou\u010d\u00e1sti motoru.<\/li>\n
                  • A413 a 413 (slitiny hlin\u00edku): Pou\u017e\u00edvaj\u00ed se v automobilov\u00e9m a leteck\u00e9m pr\u016fmyslu.<\/li>\n
                  • AZ91D a AM60B (slitiny ho\u0159\u010d\u00edku): B\u011b\u017en\u011b se pou\u017e\u00edvaj\u00ed v automobilov\u00e9m pr\u016fmyslu, ale jejich tepeln\u00e1 vodivost m\u016f\u017ee b\u00fdt omezen\u00edm u n\u011bkter\u00fdch modern\u00edch aplikac\u00ed, nap\u0159\u00edklad u elektromobil\u016f.<\/li>\n<\/ul>\n

                    Jak se vysokotlak\u00e9 tlakov\u00e9 lit\u00ed li\u0161\u00ed od n\u00edzkotlak\u00e9ho?<\/strong><\/h3>\n

                    Vysokotlak\u00e9 tlakov\u00e9 lit\u00ed vst\u0159ikuje roztaven\u00fd kov do forem v\u011bt\u0161\u00ed silou, co\u017e umo\u017e\u0148uje rychlej\u0161\u00ed v\u00fdrobu a p\u0159esn\u011bj\u0161\u00ed reprodukci detail\u016f. N\u00edzkotlak\u00e9 metody vyu\u017e\u00edvaj\u00ed gravitaci nebo ni\u017e\u0161\u00ed tlak, a proto b\u00fdvaj\u00ed pomalej\u0161\u00ed a m\u00e9n\u011b p\u0159esn\u00e9 u slo\u017eit\u00fdch d\u00edl\u016f.<\/p>\n

                    Jak\u00fd rozsah tlaku se obvykle pou\u017e\u00edv\u00e1 ve stroj\u00edch pro vysokotlak\u00e9 tlakov\u00e9 lit\u00ed?<\/strong><\/h3>\n

                    Tlak ve stroj\u00edch pro vysokotlak\u00e9 tlakov\u00e9 lit\u00ed se obvykle pohybuje v rozmez\u00ed 1000 a\u017e 25\u00a0000 PSI (liber na \u010dtvere\u010dn\u00ed palec). P\u0159esn\u00e1 hodnota z\u00e1vis\u00ed na druhu kovu a slo\u017eitosti vyr\u00e1b\u011bn\u00e9ho d\u00edlu.<\/p>\n

                     <\/p>\n","protected":false},"excerpt":{"rendered":"

                    Co je vysokotlak\u00e9 tlakov\u00e9 lit\u00ed? Vysokotlak\u00e9 tlakov\u00e9 lit\u00ed (HPDC) je v\u00fdrobn\u00ed proces, p\u0159i n\u011bm\u017e se roztaven\u00fd kov vst\u0159ikuje pod vysok\u00fdm tlakem do ocelov\u00e9 formy, neboli kokily, a vyr\u00e1b\u011bj\u00ed se tak kovov\u00e9 d\u00edly. Tato metoda se \u0161iroce pou\u017e\u00edv\u00e1 k v\u00fdrob\u011b slo\u017eit\u00fdch a p\u0159esn\u00fdch sou\u010d\u00e1st\u00ed s kvalitn\u00edm povrchem a p\u0159esn\u00fdmi rozm\u011bry. Vysokotlak\u00e9 tlakov\u00e9 lit\u00ed je v podstat\u011b […]<\/p>\n","protected":false},"author":1,"featured_media":25416,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"Vysokotlak\u00e9 tlakov\u00e9 lit\u00ed: p\u0159esnost a efektivita","_seopress_titles_desc":"Zjist\u011bte, jak vysokotlak\u00e9 tlakov\u00e9 lit\u00ed zvy\u0161uje p\u0159esnost a efektivitu v\u00fdroby kovov\u00fdch odlitk\u016f z hlin\u00edku a ho\u0159\u010d\u00edku.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_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":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_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":1,"footnotes":""},"categories":[219],"tags":[],"class_list":["post-23474","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/posts\/23474","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/comments?post=23474"}],"version-history":[{"count":3,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/posts\/23474\/revisions"}],"predecessor-version":[{"id":26428,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/posts\/23474\/revisions\/26428"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/media\/25416"}],"wp:attachment":[{"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/media?parent=23474"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/categories?post=23474"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/tags?post=23474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}