{"id":23473,"date":"2024-08-26T15:55:29","date_gmt":"2024-08-26T07:55:29","guid":{"rendered":"https:\/\/moldiecasting.com\/?p=23473"},"modified":"2026-10-09T02:21:15","modified_gmt":"2026-10-08T18:21:15","slug":"magnesium-vs-aluminum","status":"publish","type":"post","link":"https:\/\/moldiecasting.com\/cs\/blog\/magnesium-vs-aluminum\/","title":{"rendered":"Ho\u0159\u010d\u00edk vs. hlin\u00edk: r\u016fzn\u00e9 mo\u017enosti vyu\u017eit\u00ed p\u0159i tlakov\u00e9m lit\u00ed"},"content":{"rendered":"

Mezi r\u016fzn\u00fdmi materi\u00e1ly pou\u017e\u00edvan\u00fdmi p\u0159i tlakov\u00e9m lit\u00ed vynikaj\u00ed ho\u0159\u010d\u00edk a hlin\u00edk sv\u00fdmi jedine\u010dn\u00fdmi vlastnostmi a v\u00fdhodami. Oba kovy nab\u00edzej\u00ed specifick\u00e9 p\u0159\u00ednosy pro r\u016fzn\u00e9 aplikace v jednotliv\u00fdch odv\u011btv\u00edch.<\/p>\n

Tento \u010dl\u00e1nek porovn\u00e1v\u00e1 hlavn\u00ed rozd\u00edly mezi ho\u0159\u010d\u00edkem a hlin\u00edkem p\u0159i tlakov\u00e9m lit\u00ed, zejm\u00e9na jejich mechanick\u00e9 vlastnosti, hmotnost, n\u00e1klady a konkr\u00e9tn\u00ed pou\u017eit\u00ed.<\/p>\n

Znalost p\u0159ednost\u00ed i omezen\u00ed ka\u017ed\u00e9ho materi\u00e1lu umo\u017e\u0148uje v\u00fdrobc\u016fm kvalifikovan\u011b rozhodnout, jak optimalizovat v\u00fdkon, sn\u00ed\u017eit n\u00e1klady a zlep\u0161it konstrukci v\u00fdrobk\u016f.<\/p>\n

V\u00fdznam volby materi\u00e1lu p\u0159i tlakov\u00e9m lit\u00ed<\/strong><\/h2>\n

\"Detail<\/strong><\/p>\n

P\u0159i v\u00fdb\u011bru materi\u00e1lu pro tlakov\u00e9 lit\u00ed je t\u0159eba zv\u00e1\u017eit n\u011bkolik faktor\u016f. Spr\u00e1vn\u00e1 volba m\u016f\u017ee ovlivnit kvalitu, cenu i v\u00fdkon projektu.<\/p>\n

Obecn\u011b je vhodn\u00e9 posuzovat \u010dty\u0159i hlediska: hustotu, obrobitelnost, stabilitu a pevnost.<\/p>\n

Hustota<\/strong><\/h3>\n

Hustota je p\u0159i tlakov\u00e9m lit\u00ed z\u00e1sadn\u00ed, proto\u017ee p\u0159\u00edmo ovliv\u0148uje hmotnost hotov\u00e9ho v\u00fdrobku. To je kl\u00ed\u010dov\u00e9 nap\u0159\u00edklad v automobilov\u00e9m a leteck\u00e9m pr\u016fmyslu, kde je sn\u00ed\u017een\u00ed hmotnosti prioritou: materi\u00e1ly s ni\u017e\u0161\u00ed hustotou mohou p\u0159isp\u011bt k \u00faspo\u0159e paliva i lep\u0161\u00edm vlastnostem v\u00fdrobku.<\/p>\n

Obrobitelnost<\/strong><\/h3>\n

Obrobitelnost ovliv\u0148uje snadnost a n\u00e1klady n\u00e1sledn\u00fdch operac\u00ed, nap\u0159\u00edklad vrt\u00e1n\u00ed, fr\u00e9zov\u00e1n\u00ed nebo \u0159ez\u00e1n\u00ed z\u00e1vit\u016f. Lep\u0161\u00ed obrobitelnost m\u016f\u017ee zkr\u00e1tit v\u00fdrobu a omezit opot\u0159eben\u00ed n\u00e1stroj\u016f, a t\u00edm sn\u00ed\u017eit v\u00fdrobn\u00ed n\u00e1klady.<\/p>\n

Stabilita a pevnost<\/strong><\/h3>\n

Stabilita a pevnost jsou d\u016fle\u017eit\u00e9, proto\u017ee ur\u010duj\u00ed mechanick\u00e9 vlastnosti a v\u00fdkon hotov\u00e9ho v\u00fdrobku. Ovliv\u0148uj\u00ed jeho \u017eivotnost, spolehlivost i vhodnost pro konkr\u00e9tn\u00ed pou\u017eit\u00ed.<\/p>\n

Co je ho\u0159\u010d\u00edk?<\/strong><\/h2>\n

\"Shluk<\/strong><\/p>\n

Ho\u0159\u010d\u00edk<\/strong>\u00a0je nejleh\u010d\u00ed konstruk\u010dn\u00ed kov a \u010dasto se pou\u017e\u00edv\u00e1 tam, kde je z\u00e1sadn\u00ed sn\u00ed\u017eit hmotnost. Jeho hustota \u010din\u00ed p\u0159ibli\u017en\u011b 1.74 g\/cm\u00b3.<\/p>\n

Vlastnosti ho\u0159\u010d\u00edkov\u00fdch slitin<\/strong><\/h3>\n

Ho\u0159\u010d\u00edkov\u00e9 slitiny jsou cen\u011bny pro n\u00edzkou hmotnost a vysok\u00fd pom\u011br pevnosti k hmotnosti. Jsou p\u0159ibli\u017en\u011b o t\u0159etinu leh\u010d\u00ed ne\u017e hlin\u00edkov\u00e9 slitiny.<\/p>\n

Ho\u0159\u010d\u00edkov\u00e9 slitiny dob\u0159e vedou teplo. Jejich bod t\u00e1n\u00ed je p\u0159ibli\u017en\u011b 650\u00b0C (1\u00a0202\u00b0F), tedy ni\u017e\u0161\u00ed ne\u017e u hlin\u00edku. D\u00edky tomu se hod\u00ed pro n\u011bkter\u00e9 tepeln\u00e9 aplikace.<\/p>\n

Z hlediska odolnosti proti korozi<\/strong> jsou ho\u0159\u010d\u00edkov\u00e9 slitiny \u010dasto pova\u017eov\u00e1ny za m\u00e9n\u011b vhodn\u00e9 ne\u017e hlin\u00edkov\u00e9. Mohou snadn\u011bji korodovat, zejm\u00e9na ve slan\u00e9m nebo vlhk\u00e9m prost\u0159ed\u00ed. Ho\u0159\u010d\u00edkov\u00e9 d\u00edly se proto obvykle chr\u00e1n\u00ed povrchovou \u00fapravou.<\/p>\n

Co je hlin\u00edk?<\/strong><\/h2>\n

\"Detailn\u00ed<\/strong><\/p>\n

Hlin\u00edk <\/strong>je lehk\u00fd a jeho hustota \u010din\u00ed p\u0159ibli\u017en\u011b 2.7 g\/cm\u00b3. Nen\u00ed tak lehk\u00fd jako ho\u0159\u010d\u00edk, ale st\u00e1le je mnohem leh\u010d\u00ed ne\u017e \u0159ada jin\u00fdch kov\u016f, nap\u0159\u00edklad ocel.<\/p>\n

Vlastnosti hlin\u00edkov\u00fdch slitin<\/strong><\/h3>\n

Hlin\u00edkov\u00e9 slitiny se vyzna\u010duj\u00ed v\u00fdborn\u00fdm pom\u011brem pevnosti, n\u00edzk\u00e9 hmotnosti a odolnosti proti korozi. D\u00edky bodu t\u00e1n\u00ed 660\u00b0C (1\u00a0220\u00b0F) jsou vhodn\u00e9 pro r\u016fzn\u00e1 pou\u017eit\u00ed. \u0160iroce se uplat\u0148uj\u00ed v leteck\u00e9m a automobilov\u00e9m pr\u016fmyslu i ve stavebnictv\u00ed.<\/p>\n

Hlin\u00edkov\u00e9 slitiny maj\u00ed tak\u00e9 vysokou elektrickou vodivost, co\u017e je p\u0159edur\u010duje pro elektrotechnick\u00e9 aplikace. Dob\u0159e vedou i teplo, a proto se \u010dasto pou\u017e\u00edvaj\u00ed v chladi\u010d\u00edch a dal\u0161\u00edch chladic\u00edch syst\u00e9mech.<\/p>\n

Hustota hlin\u00edkov\u00fdch slitin je vy\u0161\u0161\u00ed ne\u017e u ho\u0159\u010d\u00edkov\u00fdch slitin, p\u0159esto z\u016fst\u00e1v\u00e1 n\u00edzk\u00e1. Lze je tak snadno tv\u00e1\u0159et a zpracov\u00e1vat bez v\u00fdrazn\u00e9ho zv\u00fd\u0161en\u00ed hmotnosti. D\u00edky t\u00e9to vyv\u00e1\u017een\u00e9 kombinaci vlastnost\u00ed jsou obl\u00edbenou volbou v mnoha oborech.<\/p>\n

Ho\u0159\u010d\u00edk nebo hlin\u00edk: jak vybrat spr\u00e1vn\u00fd materi\u00e1l?<\/strong><\/h2>\n

\"Prvky<\/strong><\/p>\n

N\u00e1sleduj\u00edc\u00ed tabulka porovn\u00e1v\u00e1 oba kovy:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Vlastnost<\/strong><\/td>\nHo\u0159\u010d\u00edk<\/strong><\/td>\nHlin\u00edk<\/strong><\/td>\n<\/tr>\n
Hustota<\/strong><\/td>\nNi\u017e\u0161\u00ed (1.74 g\/cm\u00b3) \u2013 p\u0159ibli\u017en\u011b o 33% leh\u010d\u00ed ne\u017e hlin\u00edk<\/td>\nVy\u0161\u0161\u00ed (2.70 g\/cm\u00b3) \u2013 p\u0159ibli\u017en\u011b o t\u0159etinu t\u011b\u017e\u0161\u00ed ne\u017e ho\u0159\u010d\u00edk<\/td>\n<\/tr>\n
Pevnost<\/strong><\/td>\nDobr\u00fd pom\u011br pevnosti k hmotnosti, ale ni\u017e\u0161\u00ed pevnost v tahu<\/td>\nVy\u0161\u0161\u00ed pevnost v tahu a lep\u0161\u00ed stabilita p\u0159i nam\u00e1h\u00e1n\u00ed<\/td>\n<\/tr>\n
Obrobitelnost<\/strong><\/td>\nSnadn\u011bj\u0161\u00ed obr\u00e1b\u011bn\u00ed, vy\u017eaduje men\u0161\u00ed \u0159ezn\u00fd tlak<\/td>\nDobr\u00e1 obrobitelnost, ale obvykle vy\u017eaduje v\u00edce \u00fasil\u00ed ne\u017e ho\u0159\u010d\u00edk<\/td>\n<\/tr>\n
Kvalita povrchu<\/strong><\/td>\nVynikaj\u00edc\u00ed povrch, hlad\u0161\u00ed ne\u017e u hlin\u00edku<\/td>\nDobr\u00fd povrch, ale m\u016f\u017ee vy\u017eadovat dal\u0161\u00ed zpracov\u00e1n\u00ed<\/td>\n<\/tr>\n
N\u00e1klady<\/strong><\/td>\nVy\u0161\u0161\u00ed kv\u016fli cen\u011b suroviny a n\u00e1klad\u016fm na zpracov\u00e1n\u00ed<\/td>\nObvykle ni\u017e\u0161\u00ed, s men\u0161\u00edmi v\u00fdrobn\u00edmi n\u00e1klady<\/td>\n<\/tr>\n
Proces odl\u00e9v\u00e1n\u00ed<\/strong><\/td>\nObvykle tlakov\u00e9 lit\u00ed v hork\u00e9 komo\u0159e<\/td>\nObvykle tlakov\u00e9 lit\u00ed ve studen\u00e9 komo\u0159e<\/td>\n<\/tr>\n
Odolnost proti korozi<\/strong><\/td>\nN\u00edzk\u00e1 odolnost proti korozi; vy\u017eaduje ochrann\u00fd povlak<\/td>\nVynikaj\u00edc\u00ed odolnost proti korozi<\/td>\n<\/tr>\n
Tepeln\u00e1 vodivost<\/strong><\/td>\nVy\u0161\u0161\u00ed tepeln\u00e1 vodivost<\/td>\nDobr\u00e1 tepeln\u00e1 vodivost, ale ni\u017e\u0161\u00ed ne\u017e u ho\u0159\u010d\u00edku<\/td>\n<\/tr>\n
Doba v\u00fdrobn\u00edho cyklu<\/strong><\/td>\nKrat\u0161\u00ed cykly d\u00edky rychlej\u0161\u00edmu tuhnut\u00ed<\/td>\nDel\u0161\u00ed cykly ne\u017e u ho\u0159\u010d\u00edku<\/td>\n<\/tr>\n
Rozm\u011brov\u00e1 p\u0159esnost<\/strong><\/td>\nVysok\u00e1 rozm\u011brov\u00e1 p\u0159esnost a stabilita<\/td>\nVysok\u00e1 rozm\u011brov\u00e1 stabilita, vhodn\u00e1 pro slo\u017eit\u00e9 tvary<\/td>\n<\/tr>\n
Reaktivita v\u016f\u010di prost\u0159ed\u00ed<\/strong><\/td>\nVy\u0161\u0161\u00ed reaktivita; vy\u017eaduje ochrannou povrchovou \u00fapravu<\/td>\nNi\u017e\u0161\u00ed reaktivita v\u016f\u010di vliv\u016fm prost\u0159ed\u00ed<\/td>\n<\/tr>\n
Pou\u017eit\u00ed<\/strong><\/td>\nIde\u00e1ln\u00ed pro lehk\u00e9 d\u00edly v automobilov\u00e9m pr\u016fmyslu a elektronice<\/td>\n\u0160irok\u00e9 vyu\u017eit\u00ed v r\u016fzn\u00fdch odv\u011btv\u00edch, v\u010detn\u011b automobilov\u00e9ho a leteck\u00e9ho pr\u016fmyslu<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Jak\u00e9 jsou v\u00fdhody tlakov\u00e9ho lit\u00ed ho\u0159\u010d\u00edku?<\/strong><\/h2>\n

Tlakov\u00e9 lit\u00ed ho\u0159\u010d\u00edku nab\u00edz\u00ed n\u011bkolik v\u00fdhod, d\u00edky nim\u017e je obl\u00edben\u00e9 v \u0159ad\u011b pr\u016fmyslov\u00fdch odv\u011btv\u00ed.<\/p>\n

    \n
  • Pom\u011br pevnosti k hmotnosti: <\/strong>Ho\u0159\u010d\u00edk vynik\u00e1 vysok\u00fdm pom\u011brem pevnosti k hmotnosti, co\u017e je v\u00fdhodn\u00e9 v aplikac\u00edch, kde je z\u00e1sadn\u00ed sn\u00ed\u017eit hmotnost.<\/li>\n
  • Dobr\u00e1 sl\u00e9vatelnost<\/strong>: Ho\u0159\u010d\u00edkov\u00e9 slitiny maj\u00ed vysokou tekutost, tak\u017ee lze snadno odl\u00e9vat slo\u017eit\u00e9 prvky a tenk\u00e9 st\u011bny.<\/li>\n
  • Vynikaj\u00edc\u00ed st\u00edn\u011bn\u00ed EMI\/RFI<\/strong>: Ho\u0159\u010d\u00edk dob\u0159e st\u00edn\u00ed elektromagnetick\u00e9 a vysokofrekven\u010dn\u00ed ru\u0161en\u00ed, a proto se hod\u00ed pro elektronick\u00e9 sou\u010d\u00e1sti.<\/li>\n
  • N\u00e1kladov\u00e1 efektivita: <\/strong>Ho\u0159\u010d\u00edk m\u016f\u017ee m\u00edt vy\u0161\u0161\u00ed po\u010d\u00e1te\u010dn\u00ed cenu, \u00faspory v\u0161ak p\u0159in\u00e1\u0161\u00ed v dal\u0161\u00edch oblastech. Rychlej\u0161\u00ed cykly tlakov\u00e9ho lit\u00ed<\/strong> umo\u017e\u0148uj\u00ed zrychlit v\u00fdrobu a ni\u017e\u0161\u00ed pracovn\u00ed teploty prodlu\u017euj\u00ed \u017eivotnost formy. Del\u0161\u00ed \u017eivotnost obr\u00e1b\u011bc\u00edch n\u00e1stroj\u016f<\/strong>\u00a0a vy\u0161\u0161\u00ed rychlost obr\u00e1b\u011bn\u00ed d\u00e1le zvy\u0161uj\u00ed dlouhodobou n\u00e1kladovou efektivitu.<\/li>\n
  • Vynikaj\u00edc\u00ed tlumen\u00ed vibrac\u00ed a hluku: <\/strong>Ho\u0159\u010d\u00edkov\u00e9 sou\u010d\u00e1sti mohou ve v\u00fdrobc\u00edch omezovat ne\u017e\u00e1douc\u00ed vibrace a hluk.<\/li>\n
  • Vysok\u00e1 rozm\u011brov\u00e1 p\u0159esnost a stabilita: <\/strong>Ho\u0159\u010d\u00edkov\u00e9 slitiny maj\u00ed dobrou tepelnou stabilitu, tak\u017ee si p\u0159i zm\u011bn\u00e1ch teploty dob\u0159e zachov\u00e1vaj\u00ed tvar a rozm\u011bry.<\/li>\n
  • Pln\u00e1 recyklovatelnost: <\/strong>Lze je opakovan\u011b roztavit a znovu pou\u017e\u00edt bez v\u00fdrazn\u00e9 ztr\u00e1ty vlastnost\u00ed.<\/li>\n<\/ul>\n

    Jak\u00e9 jsou v\u00fdhody tlakov\u00e9ho lit\u00ed hlin\u00edku?<\/strong><\/h2>\n

    Tlakov\u00e9 lit\u00ed hlin\u00edku p\u0159in\u00e1\u0161\u00ed \u0159adu v\u00fdhod a je obl\u00edben\u00e9 v mnoha pr\u016fmyslov\u00fdch odv\u011btv\u00edch.<\/p>\n

      \n
    • Pom\u011br pevnosti k hmotnosti: <\/strong>Hlin\u00edk m\u00e1 vynikaj\u00edc\u00ed pom\u011br pevnosti k hmotnosti. Dok\u00e1\u017ee proto n\u00e9st zna\u010dn\u00e9 zat\u00ed\u017een\u00ed bez velk\u00e9ho zv\u00fd\u0161en\u00ed hmotnosti.<\/li>\n
    • N\u00e1kladov\u00e1 efektivita:<\/strong>Ni\u017e\u0161\u00ed n\u00e1klady na materi\u00e1l<\/strong>\u00a0a efektivn\u00ed v\u00fdrobn\u00ed procesy<\/strong>\u00a0pom\u00e1haj\u00ed v\u00fdrobc\u016fm \u0161et\u0159it. Hlin\u00edkov\u00e9 d\u00edly nav\u00edc \u010dasto vy\u017eaduj\u00ed m\u00e9n\u011b dokon\u010dovac\u00edch operac\u00ed, co\u017e d\u00e1le zkracuje dobu v\u00fdroby a sni\u017euje n\u00e1klady.<\/li>\n
    • Odolnost proti korozi: <\/strong>Hlin\u00edk p\u0159irozen\u011b vytv\u00e1\u0159\u00ed ochrannou oxidovou vrstvu, kter\u00e1 jej chr\u00e1n\u00ed p\u0159ed koroz\u00ed. To je v\u00fdhodn\u00e9 zejm\u00e9na ve vlhk\u00e9m prost\u0159ed\u00ed a p\u0159i p\u016fsoben\u00ed chemik\u00e1li\u00ed a prodlu\u017euje \u017eivotnost tlakov\u00fdch odlitk\u016f.<\/li>\n
    • Tepeln\u00e1 vodivost: <\/strong>Hlin\u00edk dob\u0159e vede teplo a \u00fa\u010dinn\u011b je odv\u00e1d\u00ed. Hod\u00ed se proto pro chladi\u010de, kryty elektroniky a dal\u0161\u00ed aplikace, kde je d\u016fle\u017eit\u00e9 odv\u00e1d\u011bn\u00ed tepla.<\/li>\n<\/ul>\n

      Pou\u017eit\u00ed hlin\u00edkov\u00fdch a ho\u0159\u010d\u00edkov\u00fdch tlakov\u00fdch odlitk\u016f<\/strong><\/h2>\n

      \"Vst\u0159ikovac\u00ed<\/strong><\/p>\n

      Ho\u0159\u010d\u00edk i hlin\u00edk se d\u00edky sv\u00fdm jedine\u010dn\u00fdm vlastnostem \u0161iroce pou\u017e\u00edvaj\u00ed v r\u016fzn\u00fdch oborech. V\u00fdznamn\u00e9 uplatn\u011bn\u00ed nach\u00e1zej\u00ed v leteck\u00e9m a automobilov\u00e9m pr\u016fmyslu, elektronice i stavebnictv\u00ed.<\/p>\n

      Leteck\u00fd a automobilov\u00fd pr\u016fmysl<\/strong><\/h3>\n

      Hlin\u00edk<\/strong>\u00a0se \u0161iroce pou\u017e\u00edv\u00e1 p\u0159i v\u00fdrob\u011b konstrukc\u00ed letadel.<\/p>\n

        \n
      1. Sou\u010d\u00e1sti letadel<\/strong>: nosn\u00edky k\u0159\u00eddel, r\u00e1my trupu, d\u00edly podvozku<\/li>\n
      2. \u010c\u00e1sti motoru:<\/strong>sk\u0159\u00edn\u011b turb\u00edn, sk\u0159\u00edn\u011b kompresor\u016f<\/li>\n
      3. Sou\u010d\u00e1sti dru\u017eic:<\/strong>konstruk\u010dn\u00ed r\u00e1my, kryty<\/li>\n
      4. Sou\u010d\u00e1sti raket:<\/strong>palivov\u00e9 n\u00e1dr\u017ee, sou\u010d\u00e1sti motoru<\/li>\n<\/ol>\n

        Ho\u0159\u010d\u00edk<\/strong>, naopak nach\u00e1z\u00ed d\u00edky n\u00edzk\u00e9 hmotnosti cenn\u00e9 uplatn\u011bn\u00ed v leteck\u00e9m pr\u016fmyslu.<\/p>\n

          \n
        1. Sou\u010d\u00e1sti letadel<\/strong><\/li>\n
        2. Sou\u010d\u00e1sti dru\u017eic<\/strong><\/li>\n
        3. Sou\u010d\u00e1sti raket<\/strong><\/li>\n<\/ol>\n

          V automobilov\u00e9m<\/strong>\u00a0pr\u016fmyslu se hlin\u00edk<\/strong>\u00a0d\u00edky sv\u00e9 \u017eivotnosti a obrobitelnosti pou\u017e\u00edv\u00e1 na panely karoserie a sou\u010d\u00e1sti motoru.<\/p>\n

            \n
          1. Sou\u010d\u00e1sti motoru<\/strong>: hlavy v\u00e1lc\u016f, bloky motoru, sk\u0159\u00edn\u011b p\u0159evodovek<\/li>\n
          2. Konstruk\u010dn\u00ed d\u00edly:<\/strong>sou\u010d\u00e1sti podvozku, d\u00edly zav\u011b\u0161en\u00ed kol<\/li>\n
          3. D\u00edly karoserie:<\/strong>r\u00e1my dve\u0159\u00ed, r\u00e1fky kol, v\u00fdztuhy n\u00e1razn\u00edk\u016f<\/li>\n
          4. Sou\u010d\u00e1sti interi\u00e9ru:<\/strong>volanty, r\u00e1my sedadel, konstrukce palubn\u00ed desky<\/li>\n<\/ol>\n

            Ho\u0159\u010d\u00edk<\/strong>, kter\u00fd se pou\u017e\u00edv\u00e1 m\u00e9n\u011b \u010dasto, z\u00edsk\u00e1v\u00e1 na oblib\u011b pro konstruk\u010dn\u00ed aplikace d\u00edky n\u00edzk\u00e9 hmotnosti a schopnosti sn\u00ed\u017eit celkovou hmotnost vozidla.<\/p>\n

            Ho\u0159\u010d\u00edkov\u00e9 tlakov\u00e9 odlitky<\/strong>\u00a0se b\u011b\u017en\u011b pou\u017e\u00edvaj\u00ed v automobilov\u00e9m pr\u016fmyslu, nap\u0159\u00edklad pro:<\/p>\n

              \n
            1. Bloky motoru:<\/strong>Ho\u0159\u010d\u00edkov\u00e9 bloky motoru mohou b\u00fdt a\u017e o 50% leh\u010d\u00ed ne\u017e tradi\u010dn\u00ed litinov\u00e9 bloky, co\u017e zlep\u0161uje spot\u0159ebu paliva.<\/li>\n
            2. Sk\u0159\u00edn\u011b p\u0159evodovek:<\/strong>N\u00edzk\u00e1 hmotnost a vynikaj\u00edc\u00ed tepeln\u00e1 vodivost ho\u0159\u010d\u00edku jsou ide\u00e1ln\u00ed pro sk\u0159\u00edn\u011b p\u0159evodovek.<\/li>\n
            3. Volanty:<\/strong>Vysok\u00e1 pevnost a schopnost ho\u0159\u010d\u00edku tlumit vibrace pom\u00e1haj\u00ed sni\u017eovat \u00fanavu \u0159idi\u010de.<\/li>\n
            4. Konstrukce palubn\u00ed desky<\/strong><\/li>\n
            5. R\u00e1my sedadel<\/strong><\/li>\n
            6. Vnit\u0159n\u00ed panely dve\u0159\u00ed<\/strong><\/li>\n<\/ol>\n

              Elektronika a spot\u0159ebn\u00ed v\u00fdrobky<\/strong><\/h3>\n

              Hlin\u00edk<\/strong>\u00a0se pou\u017e\u00edv\u00e1 p\u0159i v\u00fdrob\u011b chladi\u010d\u016f a radi\u00e1tor\u016f, kter\u00e9 jsou nezbytn\u00e9 pro chlazen\u00ed elektronick\u00fdch za\u0159\u00edzen\u00ed. D\u00edky dobr\u00e9mu p\u0159enosu tepla a pevnosti se hlin\u00edk \u010dasto pou\u017e\u00edv\u00e1 nap\u0159\u00edklad v notebooc\u00edch.<\/p>\n

                \n
              1. Kryty notebook\u016f, chytr\u00fdch telefon\u016f a tablet\u016f<\/li>\n
              2. Chladi\u010de procesor\u016f a dal\u0161\u00edch elektronick\u00fdch sou\u010d\u00e1st\u00ed<\/li>\n
              3. Kryty s\u00ed\u0165ov\u00fdch a telekomunika\u010dn\u00edch za\u0159\u00edzen\u00ed<\/li>\n
              4. R\u00e1my a \u0161asi server\u016f a za\u0159\u00edzen\u00ed datov\u00fdch center<\/li>\n<\/ol>\n

                Ho\u0159\u010d\u00edk <\/strong>umo\u017e\u0148uje vyr\u00e1b\u011bt leh\u010d\u00ed za\u0159\u00edzen\u00ed a z\u00e1rove\u0148 l\u00e9pe odv\u00e1d\u011bt teplo.<\/p>\n

                V elektronice se ho\u0159\u010d\u00edkov\u00e9 tlakov\u00e9 odlitky pou\u017e\u00edvaj\u00ed pro:<\/p>\n

                  \n
                1. R\u00e1my notebook\u016f:<\/strong>Ho\u0159\u010d\u00edk umo\u017e\u0148uje navrhovat ten\u010d\u00ed a leh\u010d\u00ed notebooky.<\/li>\n
                2. R\u00e1my mobiln\u00edch telefon\u016f: <\/strong>Ho\u0159\u010d\u00edk umo\u017e\u0148uje vytv\u00e1\u0159et \u0161t\u00edhlej\u0161\u00ed smartphony p\u0159i zachov\u00e1n\u00ed pevnosti.<\/li>\n
                3. T\u011bla fotoapar\u00e1t\u016f:<\/strong>Ho\u0159\u010d\u00edk zaji\u0161\u0165uje pevnost a tlum\u00ed vibrace kryt\u016f fotoapar\u00e1t\u016f.<\/li>\n
                4. Kryty elektroniky:<\/strong>Ho\u0159\u010d\u00edk nab\u00edz\u00ed vynikaj\u00edc\u00ed st\u00edn\u011bn\u00ed EMI\/RFI.<\/li>\n<\/ol>\n

                  Pr\u016fmyslov\u00e9 a stavebn\u00ed aplikace<\/strong><\/h3>\n

                  V pr\u016fmyslov\u00e9m prost\u0159ed\u00ed hlin\u00edk<\/strong>\u00a0se d\u00edky vysok\u00e9 pevnosti a odolnosti proti korozi up\u0159ednost\u0148uje pro t\u011b\u017ek\u00e9 stroje a za\u0159\u00edzen\u00ed. Pou\u017e\u00edv\u00e1 se tak\u00e9 ve stavebnictv\u00ed, nap\u0159\u00edklad pro le\u0161en\u00ed a konstrukce budov.<\/p>\n

                  Ho\u0159\u010d\u00edk<\/strong>\u00a0se snadno obr\u00e1b\u00ed a pou\u017e\u00edv\u00e1 se v pr\u016fmyslov\u00fdch aplikac\u00edch, kde je z\u00e1sadn\u00ed sn\u00ed\u017eit hmotnost. Ve stavebnictv\u00ed je v\u0161ak m\u00e9n\u011b roz\u0161\u00ed\u0159en\u00fd.<\/p>\n

                  V\u00fdrobn\u00ed hlediska u hlin\u00edku a ho\u0159\u010d\u00edku<\/strong><\/h2>\n

                  Obrobitelnost a tv\u00e1\u0159itelnost<\/strong><\/h3>\n

                  Ho\u0159\u010d\u00edk se snadn\u011bji \u0159e\u017ee a tvaruje. P\u0159i obr\u00e1b\u011bn\u00ed vznik\u00e1 m\u00e9n\u011b tepla, co\u017e sni\u017euje opot\u0159eben\u00ed n\u00e1stroj\u016f. Tak\u00e9 hlin\u00edk, zejm\u00e9na slitina 6061, se dob\u0159e obr\u00e1b\u00ed, ale kv\u016fli vy\u0161\u0161\u00ed hustot\u011b m\u016f\u017ee vy\u017eadovat robustn\u011bj\u0161\u00ed za\u0159\u00edzen\u00ed.<\/p>\n

                  Hlin\u00edkov\u00e9 slitiny se d\u00edky vy\u0161\u0161\u00ed ta\u017enosti \u010dasto l\u00e9pe hod\u00ed pro oh\u00fdb\u00e1n\u00ed a lisov\u00e1n\u00ed. Ho\u0159\u010d\u00edk m\u016f\u017ee b\u00fdt k\u0159eh\u010d\u00ed a p\u0159i t\u011bchto operac\u00edch n\u00e1chyln\u011bj\u0161\u00ed k prask\u00e1n\u00ed.<\/p>\n

                  Techniky sva\u0159ov\u00e1n\u00ed a spojov\u00e1n\u00ed<\/strong><\/h3>\n

                  Hlin\u00edkov\u00e9 slitiny, nap\u0159\u00edklad 6061, se p\u0159i sva\u0159ov\u00e1n\u00ed sn\u00e1ze zpracov\u00e1vaj\u00ed. Lze pou\u017e\u00edt b\u011b\u017en\u00e9 metody jako TIG a MIG. Je t\u0159eba p\u0159edch\u00e1zet vad\u00e1m, nap\u0159\u00edklad p\u00f3rovitosti, ale hlin\u00edk se obecn\u011b sva\u0159uje snadn\u011bji ne\u017e ho\u0159\u010d\u00edk.<\/p>\n

                  Ho\u0159\u010d\u00edk m\u00e1 zvl\u00e1\u0161tn\u00ed po\u017eadavky. Ve form\u011b pr\u00e1\u0161ku nebo tenk\u00fdch t\u0159\u00edsek je vysoce ho\u0159lav\u00fd, proto vy\u017eaduje specializovan\u00e9 sva\u0159ovac\u00ed postupy a bezpe\u010dnostn\u00ed opat\u0159en\u00ed. Inertn\u00ed plyny mohou zabr\u00e1nit vzn\u00edcen\u00ed, celkov\u00fd proces v\u0161ak b\u00fdv\u00e1 slo\u017eit\u011bj\u0161\u00ed a n\u00e1kladn\u011bj\u0161\u00ed.<\/p>\n

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

                  Je mezi ho\u0159\u010d\u00edkov\u00fdmi a hlin\u00edkov\u00fdmi materi\u00e1ly v\u00fdrazn\u00fd rozd\u00edl v cen\u011b?<\/strong><\/h3>\n

                  Ano, cenov\u00fd rozd\u00edl existuje. Hlin\u00edk je obecn\u011b dostupn\u011bj\u0161\u00ed a n\u00e1kladov\u011b efektivn\u011bj\u0161\u00ed ne\u017e ho\u0159\u010d\u00edk. Vy\u0161\u0161\u00ed cena ho\u0159\u010d\u00edku souvis\u00ed se slo\u017eit\u00fdm z\u00edsk\u00e1v\u00e1n\u00edm a rafinac\u00ed. Podle rozpo\u010dtu a pot\u0159eb projektu m\u016f\u017ee b\u00fdt tento rozd\u00edl z\u00e1sadn\u00edm faktorem.<\/p>\n

                  M\u016f\u017eete vysv\u011btlit v\u00fdhody pou\u017eit\u00ed ho\u0159\u010d\u00edku nam\u00edsto hlin\u00edku v deodorantech?<\/strong><\/h3>\n

                  Deodoranty na b\u00e1zi ho\u0159\u010d\u00edku jsou obecn\u011b pova\u017eov\u00e1ny za \u0161etrn\u011bj\u0161\u00ed k poko\u017ece a m\u00e9n\u011b \u010dasto zp\u016fsobuj\u00ed podr\u00e1\u017ed\u011bn\u00ed ne\u017e deodoranty na b\u00e1zi hlin\u00edku. Ho\u0159\u010d\u00edk neutralizuje z\u00e1pach, ani\u017e by ucp\u00e1val p\u00f3ry, zat\u00edmco slou\u010deniny hlin\u00edku do\u010dasn\u011b blokuj\u00ed potn\u00ed \u017el\u00e1zy. Ho\u0159\u010d\u00edk proto m\u016f\u017ee b\u00fdt vhodnou volbou pro lidi s citlivou poko\u017ekou nebo pro ty, kte\u0159\u00ed hledaj\u00ed p\u0159\u00edrodn\u00ed deodorant.<\/p>\n","protected":false},"excerpt":{"rendered":"

                  Mezi r\u016fzn\u00fdmi materi\u00e1ly pou\u017e\u00edvan\u00fdmi p\u0159i tlakov\u00e9m lit\u00ed vynikaj\u00ed ho\u0159\u010d\u00edk a hlin\u00edk sv\u00fdmi jedine\u010dn\u00fdmi vlastnostmi a v\u00fdhodami. Oba kovy nab\u00edzej\u00ed specifick\u00e9 p\u0159\u00ednosy pro r\u016fzn\u00e9 aplikace v jednotliv\u00fdch odv\u011btv\u00edch. Tento \u010dl\u00e1nek porovn\u00e1v\u00e1 hlavn\u00ed rozd\u00edly mezi ho\u0159\u010d\u00edkem a hlin\u00edkem p\u0159i tlakov\u00e9m lit\u00ed, zejm\u00e9na jejich mechanick\u00e9 vlastnosti, hmotnost, n\u00e1klady a konkr\u00e9tn\u00ed pou\u017eit\u00ed. Znalost p\u0159ednost\u00ed i omezen\u00ed ka\u017ed\u00e9ho materi\u00e1lu umo\u017e\u0148uje […]<\/p>\n","protected":false},"author":1,"featured_media":25403,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"Ho\u0159\u010d\u00edk vs. hlin\u00edk: r\u016fzn\u00e9 mo\u017enosti vyu\u017eit\u00ed p\u0159i tlakov\u00e9m lit\u00ed","_seopress_titles_desc":"Prozkoumejte hlavn\u00ed rozd\u00edly mezi ho\u0159\u010d\u00edkem a hlin\u00edkem p\u0159i tlakov\u00e9m lit\u00ed. Zjist\u011bte, pro\u010d ho\u0159\u010d\u00edk nab\u00edz\u00ed vynikaj\u00edc\u00ed v\u00fdkon a v\u00fdhody.","_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-23473","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\/23473","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=23473"}],"version-history":[{"count":1,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/posts\/23473\/revisions"}],"predecessor-version":[{"id":25997,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/posts\/23473\/revisions\/25997"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/media\/25403"}],"wp:attachment":[{"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/media?parent=23473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/categories?post=23473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/moldiecasting.com\/cs\/wp-json\/wp\/v2\/tags?post=23473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}