{"id":13245,"date":"2019-09-30T12:05:57","date_gmt":"2019-09-30T12:05:57","guid":{"rendered":"https:\/\/aludiecasting.com\/?p=13245"},"modified":"2019-09-20T12:34:03","modified_gmt":"2019-09-20T12:34:03","slug":"gravitacni-liti-pod-tlakem","status":"publish","type":"post","link":"https:\/\/aludiecasting.com\/cs\/gravitacni-liti-pod-tlakem\/","title":{"rendered":"Proces gravita\u010dn\u00edho tlakov\u00e9ho lit\u00ed"},"content":{"rendered":"

Gravita\u010dn\u00ed tlakov\u00e9 lit\u00ed<\/strong> je trval\u00fd proces lisov\u00e1n\u00ed. Tento proces se prov\u00e1d\u00ed nalit\u00edm roztaven\u00e9ho kovu do formy kapesn\u00ed n\u00e1doby. Nepou\u017e\u00edv\u00e1 se \u017e\u00e1dn\u00e1 vn\u011bj\u0161\u00ed s\u00edla. Funguje to stejn\u011b jako lit\u00ed do p\u00edsku, ale je mo\u017en\u00e9 kontrolovat pln\u011bn\u00ed naklon\u011bn\u00edm formy. Pou\u017eit\u00ed gravita\u010dn\u00edho lit\u00ed m\u00e1 n\u011bkolik v\u00fdhod oproti lit\u00ed do p\u00edsku S. T\u011bmito v\u00fdhodami jsou lep\u0161\u00ed mechanick\u00e9 vlastnosti a lep\u0161\u00ed povrch.<\/p>\n\n\n\n

Typ komponent\u016f vyr\u00e1b\u011bn\u00fdch touto metodou tisku je ide\u00e1ln\u00ed pro mal\u00e9 a st\u0159edn\u00ed podniky. Obvykle v\u00e1\u017e\u00ed kolem 20 kg a jsou vyrobeny ze slitin na b\u00e1zi zinku. Tento typ formy umo\u017e\u0148uje vyr\u00e1b\u011bt v\u011bt\u0161\u00ed objemy p\u0159esn\u00fdch sou\u010d\u00e1st\u00ed a je tak\u00e9 vysoce n\u00e1kladov\u011b efektivn\u00ed metodou pro polotovary s minim\u00e1ln\u00edmi dokon\u010dovac\u00edmi operacemi, zejm\u00e9na ve srovn\u00e1n\u00ed s p\u00edskov\u00fdm tiskem. Za\u0159\u00edzen\u00ed pou\u017e\u00edvan\u00e9 k v\u00fdrob\u011b tohoto typu formy se naz\u00fdv\u00e1 gravita\u010dn\u00ed lisovac\u00ed n\u00e1stroj a m\u016f\u017ee tuto formu vyr\u00e1b\u011bt n\u011bkolik let. B\u011bhem t\u00e9to doby by nem\u011blo vy\u017eadovat aktualizaci. P\u0159i pou\u017eit\u00ed v\u00edce n\u00e1stroj\u016f lze v\u00fdrazn\u011b zv\u00fd\u0161it rychlost v\u00fdroby a komponenty lze tak\u00e9 zah\u0159\u00edvat, aby se zlep\u0161ily nebo upravily jejich vlastnosti.<\/p>\n\n\n\n

\"Gravita\u010dn\u00ed
Gravita\u010dn\u00ed tlakov\u00e9 lit\u00ed<\/figcaption><\/figure><\/div>\n\n\n\n

Jedn\u00e1 se o velmi speci\u00e1ln\u00ed obor, a pokud jej pot\u0159ebujete, doporu\u010duji v\u00e1m, abyste se porozhl\u00e9dli, sezn\u00e1mili se s firmami, kter\u00e9 tuto slu\u017ebu nab\u00edzej\u00ed, prohledali internet a na\u0161li tu, kter\u00e1 v\u00e1m vyhovuje.<\/p>\n\n\n\n

Co pot\u0159ebujete v\u011bd\u011bt o Gravita\u010dn\u00ed tlakov\u00e9 lit\u00ed<\/a><\/strong><\/h2>\n\n\n\n

P\u0159i odl\u00e9v\u00e1n\u00ed do p\u00edsku se forma po ka\u017ed\u00e9 tiskov\u00e9 operaci rozbije, ale p\u0159i procesu zn\u00e1m\u00e9m jako gravita\u010dn\u00ed tlakov\u00e9 lit\u00ed<\/strong>, forma naz\u00fdvan\u00e1 tak\u00e9 \"Matrix\", je vyrobena z kovu a lze ji pou\u017e\u00edt mnohokr\u00e1t. To znamen\u00e1, \u017ee v\u00fdroba matrice je mnohem dra\u017e\u0161\u00ed ne\u017e v\u00fdroba formy na jedno pou\u017eit\u00ed. Mezit\u00edmn\u00ed technika pou\u017e\u00edv\u00e1 polopermanentn\u00ed formu vyrobenou ze s\u00e1dry nebo plamenn\u00e9 hl\u00edny, kterou lze pou\u017e\u00edt opakovan\u011b pro omezen\u00fd po\u010det v\u00fdlisk\u016f. P\u0159i gravita\u010dn\u00edm lit\u00ed se pro v\u00fdrobu forem nej\u010dast\u011bji pou\u017e\u00edv\u00e1 litina, ocel a \u017e\u00e1ruvzdorn\u00e9 sm\u011bsi \u017eeleza. Pro n\u011bkter\u00e9 specifick\u00e9 aplikace se pro v\u00fdrobu forem pou\u017e\u00edvaj\u00ed i jin\u00e9 materi\u00e1ly, mezi n\u011b\u017e m\u016f\u017ee pat\u0159it hlin\u00edk. Z m\u011bd\u011bn\u00e9 nebo grafitov\u00e9 kovov\u00e9 matrice lze vyrobit hladkou formu s \u010dist\u00fdm povrchem a velmi vysokou rozm\u011brovou p\u0159esnost\u00ed. Tyto v\u00fdlisky nevy\u017eaduj\u00ed t\u00e9m\u011b\u0159 \u017e\u00e1dn\u00e9 nebo \u017e\u00e1dn\u00e9 fin\u00e1ln\u00ed obr\u00e1b\u011bn\u00ed nebo jin\u00e9 dokon\u010dovac\u00ed \u00fapravy. \u017divotnost kovov\u00e9 matrice se m\u016f\u017ee li\u0161it v z\u00e1vislosti na po\u010dtu v\u00fdlisk\u016f, kter\u00e9 lze vyrobit, a to v z\u00e1vislosti na ur\u010dit\u00fdch faktorech, jako je materi\u00e1l odlitku, odolnost materi\u00e1lu matrice proti tepeln\u00fdm \u0161ok\u016fm, teplota, p\u0159i kter\u00e9 se odl\u00e9v\u00e1, a pou\u017eit\u00e1 metoda Casting.<\/p>\n\n\n\n

P\u0159i navrhov\u00e1n\u00ed vzor\u016f, z nich\u017e se vytv\u00e1\u0159ej\u00ed matice, je t\u0159eba zohlednit mnoho detail\u016f. Nap\u0159\u00edklad je t\u0159eba vz\u00edt v \u00favahu syst\u00e9m lic\u00edho traktu a stoupac\u00ed trubky tak, aby st\u011bna formy umo\u017e\u0148ovala chladic\u00ed p\u016fsoben\u00ed na tekut\u00fd kov, a ten tak zmrzl rychleji ne\u017e p\u0159i tisku. Forma by tak\u00e9 m\u011bla m\u00edt v t\u011bsn\u011bn\u00ed kan\u00e1l a vzduchov\u00e9 otvory, kter\u00e9 umo\u017en\u00ed odvod hork\u00e9ho kovov\u00e9ho vzduchu z vnit\u0159ku formy. Matrice mus\u00ed b\u00fdt tak\u00e9 konstruov\u00e1na tak, aby neomezovala kontrakce vznikaj\u00edc\u00ed p\u0159i ochlazov\u00e1n\u00ed kovu. Extrakce m\u016f\u017ee zp\u016fsobit pot\u00ed\u017ee p\u0159i konstrukci j\u00e1drotv\u00e1\u0159ec\u00ed formy. Obvykle se j\u00e1dro vyr\u00e1b\u00ed ze speci\u00e1ln\u00ed oceli nebo slitiny, n\u011bkdy se pou\u017e\u00edv\u00e1 p\u00edskov\u00e9 nebo tlakov\u00e9 j\u00e1dro.<\/p>\n\n\n\n

Aby se kovov\u00e1 tavenina nelepila na formu, m\u016f\u017eete na matrici nan\u00e9st vnit\u0159n\u00ed vrstvu v\u00e1pna, hl\u00edny nebo popelov\u00e9 kosti se sklenic\u00ed vody jako pojivem. Tuto sm\u011bs lze na matrici nan\u00e1\u0161et st\u0159\u00edk\u00e1n\u00edm, \u0161t\u011btcem nebo m\u00e1\u010den\u00edm.<\/p>\n\n\n\n

U jednoduch\u00fdch odlitk\u016f lze roztaven\u00fd kov nal\u00e9vat shora. M\u011bla by b\u00fdt navr\u017eena tak, aby roztaven\u00fd kov rychle proudil bez turbulenc\u00ed ke v\u0161em \u010d\u00e1stem z\u00e1pustky. U kov\u016f s n\u00edzkou tavitelnost\u00ed se n\u011bkdy matrice zah\u0159\u00edv\u00e1, aby se zabr\u00e1nilo p\u0159ed\u010dasn\u00e9mu zamrznut\u00ed, a u kov\u016f s vysokou tavitelnost\u00ed m\u016f\u017ee b\u00fdt nutn\u00e9 matrici po ka\u017ed\u00e9 tavb\u011b um\u011ble ochladit.<\/p>\n\n\n\n

Pomal\u00fd pohyb nebo nakl\u00e1p\u011bn\u00ed formy b\u011bhem lit\u00ed m\u016f\u017ee sn\u00ed\u017eit turbulence a umo\u017enit snadn\u011bj\u0161\u00ed proud\u011bn\u00ed kov\u016f, zejm\u00e9na p\u0159i v\u00fdrob\u011b t\u011b\u017ek\u00fdch odlitk\u016f. U ne\u0161ikovn\u00fdch v\u00fdlisk\u016f lze pou\u017e\u00edt vakuov\u00fd prostor, kter\u00fd usnadn\u00ed pln\u011bn\u00ed formy. Slip Casting je technika pou\u017e\u00edvan\u00e1 pro v\u00fdrobu ozdobn\u00fdch nebo dut\u00fdch odlitk\u016f: Roztaven\u00fd kov se nalije do matrice, a kdy\u017e se vytvo\u0159\u00ed pevn\u00fd pl\u00e1\u0161\u0165 o dostate\u010dn\u00e9 tlou\u0161\u0165ce, vylije se zb\u00fdvaj\u00edc\u00ed tekutina.<\/p>\n\n\n\n

P\u0159esto\u017ee je tlakov\u00e9 lit\u00ed levn\u011bj\u0161\u00ed ne\u017e lit\u00ed do p\u00edsku, n\u00e1stroje jsou dra\u017e\u0161\u00ed a pro rentabilitu procesu je t\u0159eba vyrobit optim\u00e1ln\u00ed po\u010det odlitk\u016f.<\/p>\n\n\n\n

Pokud chcete z\u00edskat informace o odl\u00e9v\u00e1n\u00ed do p\u00edsku \u010c\u00edna<\/a><\/strong> Pokud si chcete koupit gravita\u010dn\u00ed tlakov\u00e9 lit\u00ed z \u010c\u00edny, po\u0161lete n\u00e1m sv\u016fj n\u00e1vrh d\u00edlu, nab\u00eddneme v\u00e1m cenu.<\/p>","protected":false},"excerpt":{"rendered":"

Gravity Die Casting is a permanent molding process. This process is done by pouring the molten metal into the mold of the pocket container. No external force is applied. This works in the same way as sand casting, but it is possible to control the filling by tilting the mold. There are several advantages to […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"off","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[58,151,150],"tags":[],"class_list":["post-13245","post","type-post","status-publish","format-standard","hentry","category-gravity-casting","category-gravity-die-casting","category-sand-casting-china"],"_links":{"self":[{"href":"https:\/\/aludiecasting.com\/cs\/wp-json\/wp\/v2\/posts\/13245","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aludiecasting.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aludiecasting.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aludiecasting.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aludiecasting.com\/cs\/wp-json\/wp\/v2\/comments?post=13245"}],"version-history":[{"count":0,"href":"https:\/\/aludiecasting.com\/cs\/wp-json\/wp\/v2\/posts\/13245\/revisions"}],"wp:attachment":[{"href":"https:\/\/aludiecasting.com\/cs\/wp-json\/wp\/v2\/media?parent=13245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aludiecasting.com\/cs\/wp-json\/wp\/v2\/categories?post=13245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aludiecasting.com\/cs\/wp-json\/wp\/v2\/tags?post=13245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}