{"id":26290,"date":"2025-11-21T09:34:44","date_gmt":"2025-11-21T01:34:44","guid":{"rendered":"https:\/\/sinoextrud.com\/?p=26290"},"modified":"2025-11-21T09:34:44","modified_gmt":"2025-11-21T01:34:44","slug":"jak-se-vyrabeji-dute-hlinikove-profily","status":"publish","type":"post","link":"https:\/\/sinoextrud.com\/cs\/how-are-hollow-aluminum-extrusions-made\/","title":{"rendered":"Jak se vyr\u00e1b\u011bj\u00ed dut\u00e9 hlin\u00edkov\u00e9 profily?"},"content":{"rendered":"

\"6063
6063 CNC obr\u00e1b\u011bn\u00ed hlin\u00edku vytla\u010dovac\u00ed z\u00e1v\u011bs<\/figcaption><\/figure>\n<\/p>\n

Jednou jsem \u010delil v\u00fdzv\u011b navrhnout dut\u00fd hlin\u00edkov\u00fd profil a uv\u011bdomil jsem si, jak m\u016f\u017ee samotn\u00fd v\u00fdrobn\u00ed proces rozhodnout o jeho \u00fasp\u011bchu nebo ne\u00fasp\u011bchu.<\/p>\n

Dut\u00e9 hlin\u00edkov\u00e9 profily se vyr\u00e1b\u011bj\u00ed protla\u010dov\u00e1n\u00edm p\u0159edeh\u0159\u00e1t\u00e9ho polotovaru speci\u00e1ln\u00edm n\u00e1strojem (matrice, trny, m\u016fstky), tak\u017ee se p\u0159i toku hlin\u00edku a jeho sva\u0159ov\u00e1n\u00ed kolem podp\u011br vytvo\u0159\u00ed vnit\u0159n\u00ed dutiny.<\/strong> <\/p>\n

Nyn\u00ed v\u00e1s krok za krokem provedu kl\u00ed\u010dov\u00fdmi ot\u00e1zkami \u2013 jak\u00e9 n\u00e1stroje se pou\u017e\u00edvaj\u00ed, jak funguj\u00ed vnit\u0159n\u00ed m\u016fstky a trny, jak udr\u017eet rovnom\u011brnou tlou\u0161\u0165ku st\u011bny a jak chlazen\u00ed ovliv\u0148uje v\u00fdsledek.<\/p>\n

\n

Jak\u00e9 n\u00e1stroje vytv\u00e1\u0159ej\u00ed dut\u00e9 profily?<\/h2>\n

P\u0159edstavte si hlin\u00edk jako plastel\u00ednu, kter\u00e1 se protla\u010duje podivn\u00fdm tvarem. M\u00e1me obavy: pokud nebude n\u00e1stroj spr\u00e1vn\u00fd, dutina se nevytvo\u0159\u00ed nebo st\u011bny budou nerovn\u00e9.<\/p>\n

N\u00e1stroje pro dut\u00e9 profily pou\u017e\u00edvaj\u00ed dut\u00e9 matrice (\u010dasto naz\u00fdvan\u00e9 ok\u00e9nkov\u00e9 nebo m\u016fstkov\u00e9 matrice) spolu s trny a podp\u011brami, kter\u00e9 umo\u017e\u0148uj\u00ed hlin\u00edku t\u00e9ct a spojovat se kolem vnit\u0159n\u00edch dutin a vytv\u00e1\u0159et tak dut\u00fd pr\u016f\u0159ez.<\/strong> <\/p>\n

\"Hlin\u00edkov\u00e9
Hlin\u00edkov\u00e9 v\u00fdlisky 1060 2024 3003 5082 6061 6082 7003 7005 7075 Hlin\u00edkov\u00e1 slitina Profil<\/figcaption><\/figure>\n<\/p>\n

K v\u00fdrob\u011b dut\u00e9ho hlin\u00edkov\u00e9ho profilu nesta\u010d\u00ed pouze protla\u010dit polotovar plochou matric\u00ed. Podle technick\u00e9ho p\u0159ehledu se dut\u00e9 matrice skl\u00e1daj\u00ed z n\u011bkolika \u010d\u00e1st\u00ed: trnu, kter\u00fd definuje dutinu, matrice nebo desky, kter\u00e1 definuje vn\u011bj\u0161\u00ed obrys, no\u017ei\u010dek nebo m\u016fstk\u016f, kter\u00e9 podp\u00edraj\u00ed trn, a op\u011brn\u00e9ho\/podp\u016frn\u00e9ho n\u00e1stroje, kter\u00fd sn\u00e1\u0161\u00ed tlak.<\/p>\n

Nap\u0159\u00edklad v \u201cok\u00e9nkov\u00e9\u201d form\u011b hlin\u00edk proud\u00ed do formy, rozd\u011bl\u00ed se kolem podp\u011br trnu (\u201cnohou\u201d) a pot\u00e9 se znovu spoj\u00ed za sva\u0159ovac\u00ed komorou, ne\u017e vyte\u010de jako dut\u00fd profil.<\/p>\n

Sou\u010d\u00e1st\u00ed n\u00e1strojov\u00e9ho bal\u00edku je tak\u00e9 lisovac\u00ed krou\u017eek, op\u011brn\u00e1 deska (nebo podlo\u017eka), podlo\u017eka a n\u011bkdy i podp\u011brn\u00e1 podlo\u017eka, kter\u00e9 zaji\u0161\u0165uj\u00ed vysok\u00fd tlak (tis\u00edce tun) a udr\u017euj\u00ed vyrovn\u00e1n\u00ed a tepelnou stabilitu.<\/p>\n

Zde je zjednodu\u0161en\u00e1 tabulka komponent\u016f a jejich \u00fa\u010delu:<\/p>\n\n\n\n\n\n\n\n\n\n
Sou\u010d\u00e1st n\u00e1stroje<\/th>\n\u00da\u010del<\/th>\n<\/tr>\n<\/thead>\n
Trn<\/td>\nVytv\u00e1\u0159\u00ed vnit\u0159n\u00ed dutinu\/pr\u00e1zdn\u00fd prostor<\/td>\n<\/tr>\n
Krytka \/ deska<\/td>\nTvaruje vn\u011bj\u0161\u00ed stranu profilu<\/td>\n<\/tr>\n
Mosty \/ nohy<\/td>\nPodp\u016frn\u00fd trn, umo\u017e\u0148uje proud\u011bn\u00ed kolem nich<\/td>\n<\/tr>\n
Podp\u011bra \/ op\u011brka<\/td>\nPoskytuje struktur\u00e1ln\u00ed podporu a vyrovn\u00e1n\u00ed pod tlakem<\/td>\n<\/tr>\n
Atrapov\u00fd blok \/ kontejner<\/td>\nDr\u017ete a dod\u00e1vejte polotovar pod vysok\u00fdm tlakem<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

V praxi je p\u0159i navrhov\u00e1n\u00ed dut\u00fdch profil\u016f pro vytla\u010dov\u00e1n\u00ed nutn\u00e9 zohlednit slo\u017eitost n\u00e1stroj\u016f (n\u00e1klady, \u017eivotnost, \u00fadr\u017eba) a chov\u00e1n\u00ed materi\u00e1lu p\u0159i toku. \u010c\u00edm v\u00edce dutin nebo \u010d\u00edm ten\u010d\u00ed st\u011bny, t\u00edm n\u00e1ro\u010dn\u011bj\u0161\u00ed je v\u00fdroba n\u00e1stroj\u016f. N\u00e1stroje mus\u00ed tak\u00e9 odol\u00e1vat vysok\u00e9mu tepeln\u00e9mu a mechanick\u00e9mu nam\u00e1h\u00e1n\u00ed p\u0159i procesu vytla\u010dov\u00e1n\u00ed.<\/p>\n

<\/svg> Dut\u00e9 hlin\u00edkov\u00e9 profily lze vyr\u00e1b\u011bt pomoc\u00ed stejn\u00fdch n\u00e1stroj\u016f jako pln\u00e9 profily, bez nutnosti jak\u00fdchkoli \u00faprav.<\/b>False<\/span><\/p>

Dut\u00e9 profily vy\u017eaduj\u00ed speci\u00e1ln\u00ed n\u00e1stroje (trn, m\u016fstky, ok\u00e9nkov\u00e1 matrice), kter\u00e9 se nepou\u017e\u00edvaj\u00ed pro pln\u00e9 profily.<\/p><\/div>
\n

<\/svg> Kruhov\u00e1 matrice vyu\u017e\u00edv\u00e1 trn a no\u017ei\u010dky k vytvo\u0159en\u00ed vnit\u0159n\u00ed dutiny v extrud\u00e1tu.<\/b>Pravda<\/span><\/p>

V dut\u00fdch form\u00e1ch definuje dutinu trn a podp\u00edraj\u00ed ji nohy\/m\u016fstky; hlin\u00edk kolem nich te\u010de a znovu se sva\u0159uje.<\/p><\/div><\/p>\n

\n

Pro\u010d mosty a trny tvo\u0159\u00ed dut\u00e9 profily?<\/h2>\n

Mohlo by se zd\u00e1t, \u017ee dutina vznik\u00e1 pouh\u00fdm vyta\u017een\u00edm kol\u00edku, ale ve skute\u010dnosti mus\u00ed hlin\u00edk obte\u010dt podp\u011bry a znovu se spojit \u2013 jinak by d\u00edl m\u011bl slab\u00e9 svarov\u00e9 linie nebo by se zhroutil.<\/p>\n

Mosty (nebo nohy) a trny vytv\u00e1\u0159ej\u00ed vnit\u0159n\u00ed dutinu t\u00edm, \u017ee vedou tok hlin\u00edku kolem podp\u011br dutiny a zaji\u0161\u0165uj\u00ed, \u017ee se kov spoj\u00ed za podp\u011brami a vytvo\u0159\u00ed souvisl\u00fd dut\u00fd profil.<\/strong> <\/p>\n

\"Vysoce
Vysoce p\u0159esn\u00e9 vytla\u010dov\u00e1n\u00ed hlin\u00edkov\u00fdch profil\u016f CNC obr\u00e1b\u011bc\u00ed d\u00edly p\u0159\u00edslu\u0161enstv\u00ed<\/figcaption><\/figure>\n<\/p>\n

P\u0159i extruzi dut\u00e9ho hlin\u00edkov\u00e9ho profilu mus\u00ed n\u00e1stroj umo\u017enit materi\u00e1lu proudit kolem n\u011b\u010deho, co udr\u017euje vnit\u0159n\u00ed dutinu otev\u0159enou \u2013 tedy trnu \u2013 a z\u00e1rove\u0148 poskytovat struktur\u00e1ln\u00ed podporu, aby matrice odolala tlaku. Mosty nebo nohy jsou t\u00edmto podp\u016frn\u00fdm syst\u00e9mem. Nap\u0159\u00edklad extrudovan\u00fd hlin\u00edk se rozd\u011bl\u00ed, proud\u00ed kolem obou stran podp\u011br trnu (nohou) a pot\u00e9 se spoj\u00ed v \u201csva\u0159ovac\u00ed komo\u0159e\u201d p\u0159ed v\u00fdstupem.<\/p>\n

Pro\u010d je to nutn\u00e9? Pokud byste se pokusili vytvo\u0159it pouze dutinu bez podp\u011br, forma by fyzicky nevydr\u017eela zat\u00ed\u017een\u00ed nebo by hlin\u00edk mohl dutinu zdeformovat. Mosty udr\u017euj\u00ed geometrii. Trn definuje vnit\u0159n\u00ed tvar. Rovn\u011b\u017e je nutn\u00e9 spojen\u00ed (nebo sva\u0159en\u00ed) samostatn\u00fdch proud\u016f, aby v\u00fdsledn\u00fd profil tvo\u0159il pevn\u00fd souvisl\u00fd kovov\u00fd pl\u00e1\u0161\u0165, nikoli dv\u011b poloviny, kter\u00e9 se nespoj\u00ed.<\/p>\n

Existuje n\u011bkolik typ\u016f dut\u00fdch n\u00e1stroj\u016f: syst\u00e9my s ok\u00e9nkem, pavoukem, m\u016fstkem a plovouc\u00edm trnem. V\u00fdb\u011br z\u00e1vis\u00ed na velikosti, slitin\u011b, slo\u017eitosti profilu a vybaven\u00ed.<\/p>\n

P\u0159i navrhov\u00e1n\u00ed dut\u00fdch profil\u016f je t\u0159eba m\u00edt na pam\u011bti, \u017ee p\u0159\u00edtomnost no\u017ei\u010dek\/m\u016fstk\u016f \u010dasto znamen\u00e1 v\u00fdskyt svarov\u00fdch lini\u00ed (m\u00edsta, kde se kovov\u00e9 proudy op\u011bt spojuj\u00ed) a p\u0159\u00edpadn\u011b i odchylky ve vlastnostech materi\u00e1lu. N\u00e1vrh n\u00e1stroj\u016f (geometrie m\u016fstku, v\u00fd\u0161ka svarov\u00e9 komory, vyrovn\u00e1n\u00ed trnu) ovliv\u0148uje rovnov\u00e1hu toku a rovnom\u011brnost tlou\u0161\u0165ky. V\u00fdzkum nap\u0159\u00edklad zjistil, \u017ee zm\u011bna struktury m\u016fstku otvoru a v\u00fd\u0161ky svarov\u00e9 komory v matrici s otvorem zlep\u0161ila odchylky tlou\u0161\u0165ky st\u011bny a rychlost vytla\u010dov\u00e1n\u00ed.<\/p>\n

Z vlastn\u00ed zku\u0161enosti s v\u00fdrobci hlin\u00edkov\u00fdch profil\u016f v\u00edm, \u017ee \u010d\u00edm v\u00edce dutin nebo \u010d\u00edm slo\u017eit\u011bj\u0161\u00ed je vnit\u0159n\u00ed tvar, t\u00edm pe\u010dliv\u011bj\u0161\u00ed mus\u00ed b\u00fdt konstrukce trnu\/m\u016fstku. To m\u00e1 tak\u00e9 vliv na n\u00e1klady a dodac\u00ed lh\u016ftu n\u00e1stroj\u016f. Pokud specifikujete zak\u00e1zkov\u00e9 dut\u00e9 profily, mus\u00edte dodavateli extruzn\u00edch profil\u016f sd\u011blit po\u017eadovanou velikost vnit\u0159n\u00ed dutiny, po\u010det vnit\u0159n\u00edch \u017eebrov\u00e1n\u00ed, tolerance tlou\u0161\u0165ky st\u011bny a slitinu, aby bylo mo\u017en\u00e9 navrhnout spr\u00e1vn\u00e9 n\u00e1stroje pro trn\/m\u016fstek.<\/p>\n

<\/svg> Mosty nebo nohy v dut\u00e9 form\u011b slou\u017e\u00ed \u010dist\u011b estetick\u00fdm \u00fa\u010del\u016fm.<\/b>False<\/span><\/p>

Mosty a nohy jsou funk\u010dn\u00ed: podp\u00edraj\u00ed trn a vedou tok materi\u00e1lu kolem dutiny, aby vytvo\u0159ily dut\u00fd profil.<\/p><\/div>
\n

<\/svg> Trn v dut\u00e9 matrici vytv\u00e1\u0159\u00ed vnit\u0159n\u00ed dutinu t\u00edm, \u017ee definuje pr\u00e1zdn\u00fd prostor, kolem kter\u00e9ho materi\u00e1l proud\u00ed.<\/b>Pravda<\/span><\/p>

Trn definuje vnit\u0159n\u00ed obrys; hlin\u00edk kolem n\u011bj te\u010de a vystupuje jako dut\u00fd profil.<\/p><\/div><\/p>\n

\n

Jak zachovat rovnom\u011brnou tlou\u0161\u0165ku st\u011bny?<\/h2>\n

Pokud nem\u00e1te pod kontrolou tlou\u0161\u0165ku st\u011bny, skon\u010d\u00edte se slab\u00fdmi \u010d\u00e1stmi, deformacemi nebo zmetky \u2013 proto je rovnom\u011brnost tlou\u0161\u0165ky z\u00e1sadn\u00ed.<\/p>\n

Rovnom\u011brn\u00e9 tlou\u0161\u0165ky st\u011bn v hlin\u00edkov\u00fdch extrudovan\u00fdch dut\u00fdch profilech se dosahuje optimalizac\u00ed konstrukce n\u00e1stroj\u016f (d\u00e9lky lo\u017eisek, pr\u016ftokov\u00fdch kan\u00e1l\u016f), vyv\u00e1\u017een\u00edm toku kovu a zabr\u00e1n\u011bn\u00edm n\u00e1hl\u00fdm zm\u011bn\u00e1m tlou\u0161\u0165ky.<\/strong> <\/p>\n

\"Hlin\u00edkov\u00e9
Hlin\u00edkov\u00e9 vytla\u010dov\u00e1n\u00ed 6063 Velk\u00fd pr\u016fm\u011br hlin\u00edkov\u00e9 trubky<\/figcaption><\/figure>\n<\/p>\n

Udr\u017eov\u00e1n\u00ed rovnom\u011brn\u00e9 tlou\u0161\u0165ky st\u011bny je jedn\u00edm z nejd\u016fle\u017eit\u011bj\u0161\u00edch faktor\u016f kvality u extrudovan\u00fdch dut\u00fdch hlin\u00edkov\u00fdch profil\u016f. Nerovnom\u011brn\u00e1 tlou\u0161\u0165ka vede k deformaci p\u0159i ochlazov\u00e1n\u00ed, vzniku slab\u00fdch m\u00edst a probl\u00e9m\u016fm p\u0159i mont\u00e1\u017ei. Existuje n\u011bkolik doporu\u010den\u00ed:<\/p>\n

Kl\u00ed\u010dov\u00e9 faktory ovliv\u0148uj\u00edc\u00ed rovnom\u011brnost tlou\u0161\u0165ky st\u011bny:<\/h3>\n
    \n
  • Bilance toku kov\u016f<\/strong> <\/li>\n
  • P\u0159echod tlou\u0161\u0165ky st\u011bny<\/strong> <\/li>\n
  • Symetrie profilu<\/strong> <\/li>\n
  • Konstrukce matrice \u2013 d\u00e9lka lo\u017eiska, d\u00e9lka plochy<\/strong> <\/li>\n
  • Chlazen\u00ed a ods\u00e1v\u00e1n\u00ed<\/strong><\/li>\n<\/ul>\n

    Praktick\u00e1 doporu\u010den\u00ed:<\/h3>\n\n\n\n\n\n\n\n\n\n
    Doporu\u010den\u00ed<\/th>\nPro\u010d je to d\u016fle\u017eit\u00e9<\/th>\n<\/tr>\n<\/thead>\n
    Vyhn\u011bte se n\u00e1hl\u00fdm zm\u011bn\u00e1m tlou\u0161\u0165ky<\/td>\nTenk\u00e9 st\u011bny se rychleji ochlazuj\u00ed \u2192 deformace<\/td>\n<\/tr>\n
    Udr\u017eujte pom\u011br tlou\u0161\u0165ky pod ~2:1<\/td>\nZlep\u0161uje obrobitelnost a stabilitu p\u0159i vytla\u010dov\u00e1n\u00ed<\/td>\n<\/tr>\n
    Pou\u017e\u00edvejte velkorys\u00e9 polom\u011bry p\u0159i p\u0159echodech<\/td>\nPom\u00e1h\u00e1 proud\u011bn\u00ed a sni\u017euje koncentraci nap\u011bt\u00ed<\/td>\n<\/tr>\n
    Pokud je to mo\u017en\u00e9, zachovejte symetrii profilu.<\/td>\nVyv\u00e1\u017een\u00fd pr\u016ftok a chlazen\u00ed vedou k lep\u0161\u00ed rovnom\u011brnosti<\/td>\n<\/tr>\n
    Spolupracujte v\u010das s konstrukt\u00e9rem n\u00e1stroj\u016f<\/td>\nRozhodnut\u00ed o n\u00e1stroj\u00edch ovliv\u0148uj\u00ed v\u00fdslednou tlou\u0161\u0165ku st\u011bn<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Z m\u00e9 osobn\u00ed zku\u0161enosti: kdy\u017e jsem pracoval na profilu dut\u00e9ho r\u00e1mu, m\u011bly ran\u00e9 prototypy st\u011bny s odchylkami \u00b10,3 mm na dlouh\u00fdch rozp\u011bt\u00edch. P\u0159epracov\u00e1n\u00edm d\u00e9lky lo\u017eiska n\u00e1stroje a p\u0159id\u00e1n\u00edm funkc\u00ed pro plynul\u00e9 pod\u00e1v\u00e1n\u00ed jsme sn\u00ed\u017eili odchylky na \u00b10,1 mm a v\u00fdrazn\u011b zlep\u0161ili v\u00fdt\u011b\u017enost.<\/p>\n

    <\/svg> Rychlost chlazen\u00ed stroje nem\u00e1 vliv na rovnom\u011brnost tlou\u0161\u0165ky st\u011bny p\u0159i extruzi hlin\u00edku.<\/b>False<\/span><\/p>

    Rychlost ochlazov\u00e1n\u00ed ovliv\u0148uje zp\u016fsob smr\u0161\u0165ov\u00e1n\u00ed a tuhnut\u00ed profil\u016f; nerovnom\u011brn\u00e9 ochlazov\u00e1n\u00ed vede k rozd\u00edln\u00fdm tlou\u0161\u0165k\u00e1m a deformaci.<\/p><\/div>
    \n

    <\/svg> Postupn\u00e9 p\u0159echody mezi siln\u00fdmi a tenk\u00fdmi \u010d\u00e1stmi pom\u00e1haj\u00ed udr\u017eovat rovnom\u011brnou tlou\u0161\u0165ku st\u011bny.<\/b>Pravda<\/span><\/p>

    Postupn\u00e9 p\u0159echody zlep\u0161uj\u00ed rovnov\u00e1hu toku a rovnom\u011brnost chlazen\u00ed, \u010d\u00edm\u017e se sni\u017euj\u00ed rozd\u00edly v tlou\u0161\u0165ce.<\/p><\/div><\/p>\n

    \n

    M\u016f\u017ee chlazen\u00ed ovlivnit kvalitu dut\u00e9ho v\u00fdlisku?<\/h2>\n

    I kdy\u017e jsou n\u00e1stroje a konstrukce dokonal\u00e9, \u0161patn\u00e9 chlazen\u00ed po extruzi m\u016f\u017ee st\u00e1le zni\u010dit dut\u00fd profil \u2013 m\u016f\u017ee doj\u00edt k deformaci, zkroucen\u00ed nebo vzniku vnit\u0159n\u00edch dutin.<\/p>\n

    Ano \u2014 chlazen\u00ed m\u00e1 v\u00fdznamn\u00fd vliv na kvalitu dut\u00fdch v\u00fdlisk\u016f: rychl\u00e9 nebo nerovnom\u011brn\u00e9 chlazen\u00ed dut\u00fdch profil\u016f m\u016f\u017ee zp\u016fsobit deformaci, vnit\u0159n\u00ed pnut\u00ed a odchylky v geometrii vnit\u0159n\u00ed dutiny a tlou\u0161\u0165ce st\u011bny.<\/strong> <\/p>\n

    \"\u010ctvrtkruhov\u00e9
    \u010ctvrtkruhov\u00e9 hlin\u00edkov\u00e9 v\u00fdlisky<\/figcaption><\/figure>\n<\/p>\n

    Hned po v\u00fdstupu z lisovac\u00ed formy je hlin\u00edkov\u00fd profil je\u0161t\u011b hork\u00fd a tv\u00e1rn\u00fd. F\u00e1ze ochlazov\u00e1n\u00ed ur\u010duje zp\u016fsob tuhnut\u00ed kovu, jeho zbytkov\u00e9 pnut\u00ed, rovinnost a rozm\u011brovou p\u0159esnost. U dut\u00fdch v\u00fdlisk\u016f je tato f\u00e1ze kritick\u00e1, proto\u017ee vnit\u0159n\u00ed dutiny znamenaj\u00ed men\u0161\u00ed hmotnost v ur\u010dit\u00fdch \u010d\u00e1stech, a tud\u00ed\u017e odli\u0161n\u00e9 chov\u00e1n\u00ed p\u0159i ochlazov\u00e1n\u00ed ve srovn\u00e1n\u00ed s pln\u00fdmi profily.<\/p>\n

    Chladic\u00ed faktory a jejich \u00fa\u010dinky:<\/h3>\n
      \n
    • Kalen\u00edm nebo chlazen\u00edm vzduchem<\/strong> <\/li>\n
    • R\u016fzn\u00e9 tlou\u0161\u0165ky = r\u016fzn\u00e9 rychlosti chlazen\u00ed<\/strong> <\/li>\n
    • Efekt dut\u00e9 dutiny<\/strong> <\/li>\n
    • Rovnom\u011brnost chladic\u00edho proudu<\/strong> <\/li>\n
    • Protahov\u00e1n\u00ed po ochlazen\u00ed<\/strong><\/li>\n<\/ul>\n

      Z m\u00fdch pozorov\u00e1n\u00ed: P\u0159i jednom b\u011bhu s velk\u00fdm dut\u00fdm profilem (\u0161\u00ed\u0159ka \u2248400 mm) jsme zjistili prohnut\u00ed od jednoho konce k druh\u00e9mu, proto\u017ee vzd\u00e1len\u00e1 strana profilu chladla pomaleji (kv\u016fli rozst\u0159iku) a smr\u0161\u0165ovala se pozd\u011bji ne\u017e strana bli\u017e\u0161\u00ed. Opravili jsme to \u00fapravou trysek chladic\u00ed vody a p\u0159id\u00e1n\u00edm jemn\u00e9ho ventil\u00e1toru na vzd\u00e1len\u00e9 stran\u011b. V\u00fdsledek: prohnut\u00ed se sn\u00ed\u017eilo o 70%. <\/p>\n

      Pokud tedy ve sv\u00e9m projektu specifikujete dut\u00e9 hlin\u00edkov\u00e9 profily (nap\u0159\u00edklad velk\u00e9 hlin\u00edkov\u00e9 profily va\u0161\u00ed spole\u010dnosti pro stavebnictv\u00ed), m\u011bli byste se zeptat sv\u00e9ho v\u00fdrobce:<\/p>\n

        \n
      • Jak je uspo\u0159\u00e1d\u00e1na chladic\u00ed\/kalic\u00ed stanice pro danou velikost profilu a dutou geometrii?<\/li>\n
      • Je proud\u011bn\u00ed vzduchu\/vody kolem d\u00edlu vyv\u00e1\u017een\u00e9?<\/li>\n
      • Jak reguluj\u00ed teplotn\u00ed rozd\u00edly v cel\u00e9 sekci?<\/li>\n
      • Jak\u00e9 rovn\u00e1n\u00ed se pou\u017e\u00edv\u00e1 po ochlazen\u00ed?<\/li>\n<\/ul>\n

        <\/svg> Chlazen\u00ed nem\u00e1 \u017e\u00e1dn\u00fd vliv na rovnost nebo rozm\u011brovou p\u0159esnost dut\u00fdch extrudovan\u00fdch hlin\u00edkov\u00fdch profil\u016f.<\/b>False<\/span><\/p>

        Nerovnom\u011brn\u00e9 ochlazov\u00e1n\u00ed vede k rozd\u00edln\u00e9 smr\u0161\u0165ov\u00e1n\u00ed, deformaci, prohnut\u00ed nebo zkroucen\u00ed extrudovan\u00fdch profil\u016f, zejm\u00e9na dut\u00fdch.<\/p><\/div>
        \n

        <\/svg> Spr\u00e1vn\u00e9 kalen\u00ed a rovnom\u011brn\u00e9 chlazen\u00ed v\u00fdznamn\u011b p\u0159isp\u00edvaj\u00ed k udr\u017een\u00ed rovnom\u011brn\u00e9 tlou\u0161\u0165ky st\u011bny a geometrie profilu u dut\u00fdch hlin\u00edkov\u00fdch v\u00fdlisk\u016f.<\/b>Pravda<\/span><\/p>

        Rovnom\u011brn\u00e9 chlazen\u00ed pom\u00e1h\u00e1 zabr\u00e1nit rozd\u00edl\u016fm ve smr\u0161\u0165ov\u00e1n\u00ed a udr\u017euje konzistentn\u00ed geometrii a tlou\u0161\u0165ku.<\/p><\/div><\/p>\n

        \n

        Z\u00e1v\u011br<\/h2>\n

        Podle m\u00e9ho n\u00e1zoru je v\u00fdroba dut\u00fdch hlin\u00edkov\u00fdch v\u00fdlisk\u016f vysoce integrovan\u00fdm procesem: je nutn\u00e9 sladit n\u00e1stroje (matrice, trn, m\u016fstky), konstrukci profilu (p\u0159echody tlou\u0161\u0165ky st\u011bny, symetrie) a chlazen\u00ed\/ta\u017een\u00ed po extruzi. Pokud tyto parametry ovl\u00e1d\u00e1te, dos\u00e1hnete dut\u00fdch profil\u016f, kter\u00e9 spl\u0148uj\u00ed p\u0159\u00edsn\u00e9 tolerance a po\u017eadavky na kvalitu.<\/p>","protected":false},"excerpt":{"rendered":"

        6063 CNC Machining Aluminum Extrusion Hinge I once faced the challenge of designing a hollow aluminum profile and realised how the manufacturing process itself can make or break it. Hollow aluminum extrusions are made by forcing a pre\u2011heated billet through specialised tooling (dies, mandrels, bridges) so that internal cavities form while the aluminium flows and […]<\/p>\n","protected":false},"author":6,"featured_media":6869,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-26290","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-custom-mold"],"meta_box":{"post-to-quiz_to":[]},"_links":{"self":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/26290","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/comments?post=26290"}],"version-history":[{"count":0,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/26290\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media\/6869"}],"wp:attachment":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media?parent=26290"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/categories?post=26290"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/tags?post=26290"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}