{"id":1047,"date":"2025-03-07T23:18:36","date_gmt":"2025-03-07T23:18:36","guid":{"rendered":"https:\/\/www.diecastingschina.com\/what-are-aluminum-sand-castings\/"},"modified":"2025-03-07T23:18:36","modified_gmt":"2025-03-07T23:18:36","slug":"co-jsou-hlinikove-odlitky-z-pisku","status":"publish","type":"post","link":"https:\/\/www.diecastingschina.com\/cs\/co-je-liti-hliniku-do-pisku","title":{"rendered":"Co jsou hlin\u00edkov\u00e9 odlitky z p\u00edsku?"},"content":{"rendered":"
\n

\"Proces<\/p>\n

Odl\u00e9v\u00e1n\u00ed hlin\u00edku do p\u00edsku je proces odl\u00e9v\u00e1n\u00ed kov\u016f, p\u0159i kter\u00e9m se k formov\u00e1n\u00ed materi\u00e1lu pou\u017e\u00edv\u00e1 p\u00edsek.<\/p>\n

V sou\u010dasn\u00e9 dob\u011b je v\u011bt\u0161ina kovov\u00e9 odlitky<\/a> se vyr\u00e1b\u011bj\u00ed procesem lit\u00ed do p\u00edsku. To je zp\u016fsobeno p\u0159edev\u0161\u00edm t\u00edm, \u017ee hlin\u00edk<\/a> Odl\u00e9v\u00e1n\u00ed do p\u00edsku je velmi levn\u00fd a \u00fa\u010dinn\u00fd zp\u016fsob spojov\u00e1n\u00ed materi\u00e1lu.<\/p>\n

N\u011bkdy se p\u00edsek pro zv\u00fd\u0161en\u00ed trvanlivosti m\u00eds\u00ed s hl\u00ednou. Tato sm\u011bs po p\u0159id\u00e1n\u00ed vody zvlhne a po vyschnut\u00ed zpevn\u00ed. D\u00edky tomu je mnohem v\u00edce vhodn\u00e9 pro lisov\u00e1n\u00ed<\/a>.<\/p>\n

Pro tuto metodu v\u0161ak nen\u00ed v\u017edy nutn\u00e9 pou\u017e\u00edvat hl\u00ednu. N\u011bkdy se pou\u017e\u00edv\u00e1 jedna metoda, kter\u00e1 metoda lit\u00ed hlin\u00edku do p\u00edsku<\/a> je metoda vzduchov\u00e9 sady. P\u0159i pou\u017eit\u00ed metody tuhnut\u00ed vzduchem se nej\u010dast\u011bji pou\u017e\u00edv\u00e1 jin\u00fd lepic\u00ed materi\u00e1l ne\u017e hl\u00edna.<\/p>\n

Jak funguje proces odl\u00e9v\u00e1n\u00ed hlin\u00edku<\/h2>\n

Bez ohledu na pou\u017eitou metodu by v\u0161ak odl\u00e9v\u00e1n\u00ed hlin\u00edku do p\u00edsku m\u011blo v\u00e9st k tomu. tvarov\u00e1n\u00ed dutiny formy<\/a>. Tyto vzduchem nastaven\u00e9 formy lze vytvo\u0159it pomoc\u00ed lic\u00ed ba\u0148ky, kter\u00e1 m\u00e1 spodn\u00ed i horn\u00ed \u010d\u00e1st.<\/p>\n

\"Sch\u00e9maPot\u00e9 se p\u00edskov\u00e1 sm\u011bs stla\u010d\u00ed kolem vzoru dutiny formy. V z\u00e1v\u011bre\u010dn\u00e9 \u010d\u00e1sti mont\u00e1\u017ee je \u010dasto nutn\u00e9 p\u00edsek rozvibrovat, aby se odstranily p\u0159\u00edpadn\u00e9 otvory nebo pr\u00e1zdn\u00e1 m\u00edsta ve form\u011b. Do dutiny formy se nakonec nalije odl\u00e9vac\u00ed kapalina, a jakmile kov vychladne a ztuhne, lze odlitek kone\u010dn\u011b odd\u011blit od p\u00edskov\u00e9 formy. Forma se n\u00e1sledn\u011b zni\u010d\u00ed.<\/p>\n

Kvalita samotn\u00e9ho odlitku je t\u00e9m\u011b\u0159 zcela z\u00e1visl\u00e1 na tom, jak dob\u0159e byl proces lit\u00ed dokon\u010den, a na typu pou\u017eit\u00e9 p\u00edskov\u00e9 sm\u011bsi. V\u011bt\u0161ina odlitk\u016f z p\u00edsku, kter\u00e9 jsou vyrobeny ze zelen\u00e9ho p\u00edsku, m\u00e1 hrubou strukturu. Zelen\u00fd p\u00edsek pro hlin\u00edk<\/a> se obvykle pou\u017e\u00edv\u00e1 oliv\u00ednov\u00fd p\u00edsek.<\/p>\n

Kone\u010dn\u00fd v\u00fdsledek a povrchov\u00e1 \u00faprava hlin\u00edkov\u00fdch odlitk\u016f<\/h3>\n

Vzduchem nastaven\u00e9 formy vytv\u00e1\u0159ej\u00ed odlitky, kter\u00e9 maj\u00ed obvykle hlad\u0161\u00ed povrch ne\u017e zelen\u00fd p\u00edsek, ale mohou b\u00fdt tak\u00e9 dra\u017e\u0161\u00ed ne\u017e zelen\u00fd p\u00edsek, a proto se pou\u017e\u00edvaj\u00ed pouze v p\u0159\u00edpad\u011b, \u017ee je nutn\u00fd hladk\u00fd vzor. Vzduchem nastaven\u00e9 odlitky tak\u00e9 vytv\u00e1\u0159ej\u00ed vyp\u00e1lenou barvu na povrchu formy a vy\u017eaduj\u00ed n\u00e1sledn\u00e9 o\u0161et\u0159en\u00ed, aby se vyp\u00e1len\u00e1 barva odstranila.<\/p>\n

Na\u0161t\u011bst\u00ed je p\u0159i tomto o\u0161et\u0159en\u00ed v\u011bt\u0161inou nutn\u00e9 pouze dob\u0159e vyle\u0161tit. Pokud to v\u0161ak nepom\u016f\u017ee, brou\u0161en\u00ed<\/a> nebo trysk\u00e1n\u00ed<\/a> existuj\u00ed i alternativn\u00ed prost\u0159edky. Celkov\u011b lze \u0159\u00edci, \u017ee zelen\u00fd p\u00edsek pro hlin\u00edk je dobrou cestou, proto\u017ee po vytvarov\u00e1n\u00ed ji\u017e zpravidla nebude vy\u017eadovat tento typ o\u0161et\u0159en\u00ed.<\/p>\n

P\u0159i odl\u00e9v\u00e1n\u00ed se ztrat\u00ed velk\u00e1 \u010d\u00e1st p\u00edsku, kter\u00fd byl obsa\u017een v p\u00edskov\u00e9 sm\u011bsi.<\/p>\n

Zelen\u00fd p\u00edsek pou\u017eit\u00fd na v\u00fdrobu hlin\u00edku v\u0161ak lze znovu pou\u017e\u00edt k dopln\u011bn\u00ed ztracen\u00e9 vlhkosti, co\u017e znamen\u00e1, \u017ee jej lze pou\u017e\u00edt i k v\u00fdrob\u011b nov\u00fdch forem. To je d\u016fvod, pro\u010d proces odl\u00e9v\u00e1n\u00ed hlin\u00edku<\/a> je jedn\u00edm z nejefektivn\u011bj\u0161\u00edch zp\u016fsob\u016f lit\u00ed do p\u00edsku, kter\u00fd se velmi \u010dasto pou\u017e\u00edv\u00e1 na v\u00fdrobn\u00edch link\u00e1ch v tov\u00e1rn\u00e1ch.<\/p>\n<\/p><\/div>","protected":false},"excerpt":{"rendered":"

Odl\u00e9v\u00e1n\u00ed do p\u00edsku je proces odl\u00e9v\u00e1n\u00ed hlin\u00edku do p\u00edskov\u00fdch forem. Forma se vyrob\u00ed nap\u011bchov\u00e1n\u00edm p\u00edsku kolem vzoru a p\u0159ed zni\u010den\u00edm se pou\u017eije pouze jednou.<\/p>","protected":false},"author":3,"featured_media":1075,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-1047","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-die-casting-news"],"_links":{"self":[{"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/posts\/1047","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/comments?post=1047"}],"version-history":[{"count":0,"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/posts\/1047\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/media\/1075"}],"wp:attachment":[{"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/media?parent=1047"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/categories?post=1047"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.diecastingschina.com\/cs\/wp-json\/wp\/v2\/tags?post=1047"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}