{"id":26221,"date":"2025-11-20T16:21:32","date_gmt":"2025-11-20T08:21:32","guid":{"rendered":"https:\/\/sinoextrud.com\/?p=26221"},"modified":"2025-11-20T16:21:32","modified_gmt":"2025-11-20T08:21:32","slug":"jak-rovne-jsou-hlinikove-vylisky","status":"publish","type":"post","link":"https:\/\/sinoextrud.com\/cs\/how-straight-are-aluminum-extrusions\/","title":{"rendered":"Jak rovn\u00e9 jsou hlin\u00edkov\u00e9 v\u00fdlisky?"},"content":{"rendered":"

\"Pr\u016fmyslov\u00e9
Pr\u016fmyslov\u00e9 vytla\u010dov\u00e1n\u00ed hlin\u00edku<\/figcaption><\/figure>\n<\/p>\n

Ned\u00e1vno jsem se pot\u00fdkal s velk\u00fdm probl\u00e9mem: hlin\u00edkov\u00fd v\u00fdlisek, kter\u00fd vypadal skv\u011ble, ale p\u0159i instalaci se prohnul. Poc\u00edtil jsem bolest z ne\u010dekan\u00fdch n\u00e1klad\u016f, ztracen\u00e9ho \u010dasu a p\u0159ed\u011bl\u00e1v\u00e1n\u00ed.<\/p>\n

U v\u011bt\u0161iny standardn\u00edch v\u00fdlisk\u016f je odchylka p\u0159\u00edmosti p\u0159ibli\u017en\u011b 0,012 palce (\u22480,30 mm) na stopu d\u00e9lky - i kdy\u017e u kritick\u00fdch d\u00edl\u016f lze dos\u00e1hnout v\u011bt\u0161\u00edch toleranc\u00ed.<\/strong><\/p>\n

Abychom mohli tento \u00fadaj dob\u0159e vyu\u017e\u00edt, mus\u00edme se zab\u00fdvat t\u00edm, co ovliv\u0148uje rovnost, jak se m\u011b\u0159\u00ed a co m\u016f\u017eeme ud\u011blat pro jej\u00ed zlep\u0161en\u00ed. N\u00ed\u017ee se budu v\u011bnovat jednotliv\u00fdm kl\u00ed\u010dov\u00fdm faktor\u016fm.<\/p>\n

Co ovliv\u0148uje rovnost hlin\u00edkov\u00e9ho v\u00fdlisku?<\/h2>\n

P\u0159edstavte si, \u017ee se dlouh\u00fd hlin\u00edkov\u00fd profil p\u0159i nakl\u00e1d\u00e1n\u00ed m\u00edrn\u011b ohne - tato ne\u010dekan\u00e1 k\u0159ivka zas\u00e1hne do n\u00e1klad\u016f a \u010dasov\u00e9ho pl\u00e1nu. Frustrace je skute\u010dn\u00e1.<\/p>\n

P\u0159\u00edmost vytla\u010dovan\u00e9ho profilu je ovlivn\u011bna v\u00fdb\u011brem slitiny, konstrukc\u00ed matrice a n\u00e1stroje, rychlost\u00ed a teplotou vytla\u010dov\u00e1n\u00ed, rovnom\u011brnost\u00ed chlazen\u00ed a manipulac\u00ed\/skladov\u00e1n\u00edm po vytla\u010dov\u00e1n\u00ed.<\/strong><\/p>\n

\"Kulat\u00e9
Kulat\u00e9 hlin\u00edkov\u00e9 vytla\u010dovac\u00ed profily<\/figcaption><\/figure>\n<\/p>\n

Tyto faktory rozeberu jeden po druh\u00e9m, abyste vid\u011bli, jakou roli hraje ka\u017ed\u00fd z nich v rovnosti.<\/p>\n

1. Slitina a temperace<\/h3>\n

R\u016fzn\u00e9 hlin\u00edkov\u00e9 slitiny (nap\u0159. 6063-T5 vs. 6061-T6) reaguj\u00ed na vytla\u010dov\u00e1n\u00ed a chlazen\u00ed odli\u0161n\u011b. N\u011bkter\u00e9 slitiny maj\u00ed po vytla\u010dov\u00e1n\u00ed vy\u0161\u0161\u00ed vnit\u0159n\u00ed pnut\u00ed, kter\u00e9 m\u016f\u017ee zp\u016fsobit prohnut\u00ed nebo zak\u0159iven\u00ed po ochlazen\u00ed nebo rozta\u017een\u00ed. P\u0159i m\u00e9 pr\u00e1ci byl v\u00fdb\u011br \u201cspr\u00e1vn\u00e9 slitiny pro minim\u00e1ln\u00ed prohnut\u00ed\u201d kl\u00ed\u010dovou diskus\u00ed s v\u00fdrobn\u00edm t\u00fdmem.<\/p>\n

2. Konstrukce lisovac\u00edch forem a n\u00e1stroj\u016f<\/h3>\n

Pokud konstrukce n\u00e1stroje zp\u016fsobuje nerovnom\u011brn\u00fd tok kovu nebo pokud parametry vytla\u010dovac\u00edho lisu nejsou optim\u00e1ln\u00ed, m\u016f\u017ee doj\u00edt k nerovnom\u011brn\u00e9mu rozlo\u017een\u00ed materi\u00e1lu nebo ke koncentraci vnit\u0159n\u00edho nap\u011bt\u00ed. To m\u016f\u017ee zp\u016fsobit nerovnom\u011brn\u00e9 smr\u0161\u0165ov\u00e1n\u00ed a oh\u00fdb\u00e1n\u00ed. Dobr\u00e9 opracov\u00e1n\u00ed matrice, spr\u00e1vn\u00e1 konstrukce posuvu a rovnom\u011brn\u00e1 rychlost vytla\u010dov\u00e1n\u00ed pom\u00e1haj\u00ed toto riziko sn\u00ed\u017eit.<\/p>\n

3. Teplota a rychlost vytla\u010dov\u00e1n\u00ed<\/h3>\n

Pokud je hlin\u00edk p\u0159\u00edli\u0161 hork\u00fd nebo te\u010de p\u0159\u00edli\u0161 rychle\/pomalu, m\u016f\u017ee profil opustit z\u00e1pustku s prom\u011bnliv\u00fdm vnit\u0159n\u00edm pnut\u00edm. Toto nap\u011bt\u00ed se pozd\u011bji projev\u00ed jako deformace. Vzpom\u00edn\u00e1m si na projekt, kde rychlej\u0161\u00ed \u201csp\u011b\u0161n\u00fd b\u011bh\u201d vytvo\u0159il jemn\u00e9 zak\u0159iven\u00ed, kter\u00e9 se projevilo a\u017e p\u0159i mont\u00e1\u017ei.<\/p>\n

4. Chlazen\u00ed a kalen\u00ed<\/h3>\n

Po v\u00fdstupu profilu z matrice mus\u00ed b\u00fdt chlazen\u00ed rovnom\u011brn\u00e9. Pokud jedna strana chladne rychleji ne\u017e druh\u00e1, jedna strana se v\u00edce smr\u0161\u0165uje a d\u00edl se oh\u00fdb\u00e1. Nerovnom\u011brn\u00e9 z\u00f3ny ochlazov\u00e1n\u00ed nebo chlazen\u00ed vzduchem zp\u016fsobuj\u00ed zak\u0159iven\u00ed. To plat\u00ed zejm\u00e9na u dlouh\u00fdch a t\u011b\u017ek\u00fdch v\u00fdlisk\u016f - d\u00e9lka d\u00e1v\u00e1 v\u011bt\u0161\u00ed p\u0159\u00edle\u017eitost k prohnut\u00ed.<\/p>\n

5. Protahov\u00e1n\u00ed a narovn\u00e1v\u00e1n\u00ed<\/h3>\n

Mnoho vytla\u010dovac\u00edch lisoven pou\u017e\u00edv\u00e1 k uvoln\u011bn\u00ed vnit\u0159n\u00edch pnut\u00ed a zlep\u0161en\u00ed rovinnosti operaci prota\u017een\u00ed po vytla\u010dov\u00e1n\u00ed. Pokud je prota\u017een\u00ed nedostate\u010dn\u00e9, nerovnom\u011brn\u00e9 nebo je vynech\u00e1no, m\u016f\u017ee se v\u00fdsledn\u00fd d\u00edl ohnout. Ze sv\u00e9 praktick\u00e9 zku\u0161enosti v\u00edm, \u017ee vynech\u00e1n\u00edm tohoto kroku se vystavujete riziku.<\/p>\n

6. Manipulace, podpora a skladov\u00e1n\u00ed<\/h3>\n

I po vytla\u010dov\u00e1n\u00ed a rovn\u00e1n\u00ed z\u00e1le\u017e\u00ed na tom, jak s profily manipulujete, jak je p\u0159epravujete, stohujete a skladujete. Podp\u011bry, kter\u00e9 umo\u017e\u0148uj\u00ed prohnut\u00ed, nebo stohov\u00e1n\u00ed, kter\u00e9 je nerovnom\u011brn\u011b zat\u011b\u017euje, mohou zp\u016fsobit zak\u0159iven\u00ed. M\u011bl jsem z\u00e1silku, kde stohov\u00e1n\u00ed p\u0159\u00edli\u0161 mnoha dlouh\u00fdch profil\u016f bez podp\u011br zp\u016fsobilo prohnut\u00ed v polovin\u011b rozp\u011bt\u00ed p\u0159ed dod\u00e1n\u00edm.<\/p>\n

7. Geometrie profilu a tlou\u0161\u0165ka st\u011bny<\/h3>\n

Slo\u017eit\u00e9 pr\u016f\u0159ezy nebo velmi tenk\u00e9 st\u011bny jsou n\u00e1chyln\u011bj\u0161\u00ed k oh\u00fdb\u00e1n\u00ed nebo kroucen\u00ed. \u010c\u00edm v\u011bt\u0161\u00ed je pom\u011br stran (velk\u00e9 rozp\u011bt\u00ed v pom\u011bru k tlou\u0161\u0165ce), t\u00edm v\u011bt\u0161\u00ed je riziko probl\u00e9m\u016f s p\u0159\u00edmost\u00ed. P\u0159i konzultaci n\u00e1vrhu by se m\u011blo zkoumat, jak geometrie ovliv\u0148uje chov\u00e1n\u00ed po vytla\u010dov\u00e1n\u00ed.<\/p>\n

Souhrnn\u00e1 tabulka kl\u00ed\u010dov\u00fdch faktor\u016f<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n
Faktor<\/th>\nJak ovliv\u0148uje rovnost<\/th>\n<\/tr>\n<\/thead>\n
Slitina \/ temperace<\/td>\nur\u010duje vnit\u0159n\u00ed nap\u011bt\u00ed a smr\u0161t\u011bn\u00ed<\/td>\n<\/tr>\n
Lisov\u00e1n\u00ed \/ obr\u00e1b\u011bn\u00ed<\/td>\nOvliv\u0148uje tok materi\u00e1lu a rozlo\u017een\u00ed nap\u011bt\u00ed<\/td>\n<\/tr>\n
Rychlost vytla\u010dov\u00e1n\u00ed \/ teplota<\/td>\nVliv na rovnom\u011brnost kovu a nap\u011bt\u00ed<\/td>\n<\/tr>\n
Chlazen\u00ed \/ ochlazov\u00e1n\u00ed<\/td>\nNerovnom\u011brn\u00e9 chlazen\u00ed zp\u016fsobuje oh\u00fdb\u00e1n\u00ed<\/td>\n<\/tr>\n
Protahov\u00e1n\u00ed \/ rovn\u00e1n\u00ed<\/td>\nZm\u00edr\u0148uje nap\u011bt\u00ed, koriguje zak\u0159iven\u00ed<\/td>\n<\/tr>\n
Manipulace \/ skladov\u00e1n\u00ed<\/td>\nProhnut\u00ed nebo nerovnom\u011brn\u00e9 zat\u00ed\u017een\u00ed stohu m\u016f\u017ee zp\u016fsobit prohnut\u00ed.<\/td>\n<\/tr>\n
Geometrie \/ tlou\u0161\u0165ka st\u011bny<\/td>\nTenk\u00e1 nebo dlouh\u00e1 rozp\u011bt\u00ed zvy\u0161uj\u00ed n\u00e1chylnost.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/svg> V\u00fdb\u011br slitiny nem\u016f\u017ee ovlivnit rovnost v\u00fdlisku.<\/b>False<\/span><\/p>

Vlastnosti slitiny ovliv\u0148uj\u00ed vnit\u0159n\u00ed nap\u011bt\u00ed a smr\u0161t\u011bn\u00ed, kter\u00e9 maj\u00ed vliv na ohyb.<\/p><\/div>
\n

<\/svg> Nerovnom\u011brn\u00e9 chlazen\u00ed po vytla\u010dov\u00e1n\u00ed m\u016f\u017ee zp\u016fsobit prohnut\u00ed profilu.<\/b>Pravda<\/span><\/p>

Nerovnom\u011brn\u00e1 kontrakce vede k tomu, \u017ee se jedna strana t\u00e1hne v\u00edce, co\u017e zp\u016fsobuje zak\u0159iven\u00ed.<\/p><\/div> <\/p>\n

Pro\u010d m\u00e1 vytla\u010dovac\u00ed chlazen\u00ed vliv na rovnost?<\/h2>\n

Kdy\u017e jsem se poprv\u00e9 dozv\u011bd\u011bla o chlazen\u00ed, p\u0159edstavovala jsem si, \u017ee to prost\u011b \u201cnech\u00e1m odst\u00e1t a vychladnout\u201d. Zjistil jsem v\u0161ak, jak d\u016fle\u017eit\u00fd je zp\u016fsob chlazen\u00ed a kolik zna\u010dek tento detail opom\u00edj\u00ed.<\/p>\n

Rozd\u00edly v rychlosti chlazen\u00ed v pr\u016f\u0159ezu profilu zp\u016fsobuj\u00ed rozd\u00edln\u00e9 smr\u0161\u0165ov\u00e1n\u00ed a vnit\u0159n\u00ed pnut\u00ed, co\u017e \u010dasto vede k proh\u00fdb\u00e1n\u00ed, kroucen\u00ed nebo deformac\u00edm hlin\u00edkov\u00fdch v\u00fdlisk\u016f.<\/strong><\/p>\n

\"Hlin\u00edkov\u00fd
Hlin\u00edkov\u00fd v\u00fdlisek Koupelnov\u00e1 zrcadlov\u00e1 sk\u0159\u00ed\u0148ka Hlin\u00edkov\u00fd profil<\/figcaption><\/figure>\n<\/p>\n

Pod\u00edvejme se, jak funguje chlazen\u00ed a pro\u010d je tak d\u016fle\u017eit\u00e9 pro rovnost.<\/p>\n

Tepeln\u00e1 kontrakce a v\u00fdvoj nap\u011bt\u00ed<\/h3>\n

Jakmile hork\u00fd hlin\u00edk opust\u00ed lisovac\u00ed formu, za\u010dne chladnout. Povrch chladne rychleji ne\u017e j\u00e1dro. Pokud je jedna strana profilu vystavena chladn\u011bj\u0161\u00edmu vzduchu nebo vod\u011b rychleji ne\u017e druh\u00e1 strana, tato strana se d\u0159\u00edve smr\u0161t\u00ed. Toto smr\u0161\u0165ov\u00e1n\u00ed t\u00e1hne profil sm\u011brem k t\u00e9to stran\u011b, co\u017e zp\u016fsobuje prohnut\u00ed nebo zak\u0159iven\u00ed. Vnit\u0159n\u00ed pnut\u00ed se \u201cuzamknou\u201d, pokud je d\u00edl b\u011bhem chlazen\u00ed nespr\u00e1vn\u011b podep\u0159en nebo znehybn\u011bn.<\/p>\n

\u0158\u00edzen\u00e9 vs. ne\u0159\u00edzen\u00e9 chladic\u00ed z\u00f3ny<\/h3>\n

V dobr\u00e9 vytla\u010dovac\u00ed lince je pe\u010dliv\u011b navr\u017een zp\u016fsob chlazen\u00ed. Vzduchov\u00e9 ventil\u00e1tory nebo vodn\u00ed l\u00e1zn\u011b jsou um\u00edst\u011bny tak, aby bylo zaji\u0161t\u011bno rovnom\u011brn\u00e9 chlazen\u00ed ze v\u0161ech stran. N\u011bkter\u00e9 linky pou\u017e\u00edvaj\u00ed dopravn\u00edkov\u00e9 syst\u00e9my, kter\u00e9 umo\u017e\u0148uj\u00ed rovnom\u011brn\u00fd odpor p\u0159i chlazen\u00ed d\u00edlu. Pokud je d\u00edl ponech\u00e1n bez podpory nebo vystaven nerovnom\u011brn\u00e9 teplot\u011b okol\u00ed (nap\u0159. jedna strana ve st\u00ednu, druh\u00e1 na slunci), je ohro\u017eena rovnost.<\/p>\n

P\u0159\u00edpad: dlouh\u00e9 a kr\u00e1tk\u00e9 profily<\/h3>\n

\u010c\u00edm del\u0161\u00ed je profil, t\u00edm v\u011bt\u0161\u00ed je \u0161ance, \u017ee rozd\u00edl v chlazen\u00ed zv\u011bt\u0161\u00ed zak\u0159iven\u00ed. Nosn\u00edk o d\u00e9lce 6 m se ochlazuje po cel\u00e9 sv\u00e9 d\u00e9lce a p\u0159\u00edpadn\u00e9 prohnut\u00ed zp\u016fsoben\u00e9 nerovnom\u011brn\u00fdm smr\u0161\u0165ov\u00e1n\u00edm se m\u016f\u017ee kumulovat. Proto maj\u00ed del\u0161\u00ed d\u00edly \u010dasto voln\u011bj\u0161\u00ed tolerance nebo vy\u017eaduj\u00ed speci\u00e1ln\u00ed zach\u00e1zen\u00ed. Podle jednoho odkazu m\u016f\u017ee b\u00fdt u d\u00e9lky nad 6 m tolerance p\u0159\u00edmo\u010darosti \u00b11,0 mm na metr.<\/p>\n

Vliv tvaru pr\u016f\u0159ezu<\/h3>\n

Dut\u00e9 profily nebo silnost\u011bnn\u00e9 pln\u00e9 profily reaguj\u00ed odli\u0161n\u011b. U dut\u00fdch profil\u016f m\u016f\u017ee vnit\u0159ek d\u00e9le zadr\u017eovat teplo, u siln\u00fdch profil\u016f je tepeln\u00fd gradient siln\u011bj\u0161\u00ed. Tyto vnit\u0159n\u00ed rozd\u00edly vytv\u00e1\u0159ej\u00ed rozd\u00edly v nap\u011bt\u00ed, kter\u00e9 se projevuj\u00ed prohnut\u00edm. U tenkost\u011bnn\u00fdch pr\u016f\u0159ez\u016f m\u016f\u017ee b\u00fdt vliv m\u00e9n\u011b dramatick\u00fd, ale p\u0159esto se projev\u00ed, zejm\u00e9na pokud je ochlazov\u00e1n\u00ed velmi rychl\u00e9.<\/p>\n

Osv\u011bd\u010den\u00fd postup, kter\u00fd p\u0159ij\u00edm\u00e1m<\/h3>\n

Z vlastn\u00ed pr\u00e1ce trv\u00e1m na tom, aby extrud\u00e9r ur\u010dil zp\u016fsob chlazen\u00ed a podporu b\u011bhem chlazen\u00ed. Db\u00e1m na to, aby byl profil podep\u0159en po cel\u00e9 sv\u00e9 d\u00e9lce - pou\u017e\u00edv\u00e1m stojany nebo dopravn\u00edky, kter\u00e9 umo\u017e\u0148uj\u00ed rovnom\u011brn\u00e9 podep\u0159en\u00ed, nikoliv bodov\u00e9 podep\u0159en\u00ed, kter\u00e9 vytv\u00e1\u0159\u00ed \u2018visut\u00e9\u2019 prohnut\u00ed. Vy\u017e\u00e1d\u00e1m si protokoly o chlazen\u00ed nebo \u00fadaje o procesu, pokud je rovnost pro aplikaci z\u00e1kazn\u00edka kritick\u00e1 (zejm\u00e9na konstrukce nebo dlouh\u00e1 rozp\u011bt\u00ed).<\/p>\n

Tabulka: Souhrn dopad\u016f chlazen\u00ed<\/h3>\n\n\n\n\n\n\n\n\n
Stav chlazen\u00ed<\/th>\nPotenci\u00e1ln\u00ed efekt p\u0159\u00edmo\u010darosti<\/th>\n<\/tr>\n<\/thead>\n
Rovnom\u011brn\u00e9 chlazen\u00ed ze v\u0161ech stran<\/td>\nMinim\u00e1ln\u00ed proh\u00fdb\u00e1n\u00ed, bez nap\u011bt\u00ed<\/td>\n<\/tr>\n
Rychlej\u0161\u00ed chlazen\u00ed na jedn\u00e9 stran\u011b<\/td>\nP\u0159\u00edklon k rychleji chlazen\u00e9 stran\u011b<\/td>\n<\/tr>\n
Zav\u011b\u0161en\u00ed bez opory<\/td>\nProhnut\u00ed pod vlastn\u00ed vahou p\u0159i chlazen\u00ed<\/td>\n<\/tr>\n
Nerovnom\u011brn\u00e9 okoln\u00ed prost\u0159ed\u00ed (teplo\/slunce)<\/td>\nDeformace po skladov\u00e1n\u00ed nebo pozd\u011bj\u0161\u00edm zpracov\u00e1n\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/svg> Podpora b\u011bhem chlazen\u00ed nem\u00e1 vliv na rovnost v\u00fdlisku.<\/b>False<\/span><\/p>

Nespr\u00e1vn\u00e9 podep\u0159en\u00ed umo\u017e\u0148uje proh\u00fdb\u00e1n\u00ed a zv\u00fdraz\u0148uje proh\u00fdb\u00e1n\u00ed p\u0159i chlazen\u00ed.<\/p><\/div>
\n

<\/svg> Dlouh\u00e9 v\u00fdlisky jsou n\u00e1chyln\u011bj\u0161\u00ed k probl\u00e9m\u016fm s rovnost\u00ed kv\u016fli rozd\u00edl\u016fm v chlazen\u00ed.<\/b>Pravda<\/span><\/p>

V\u011bt\u0161\u00ed d\u00e9lka d\u00e1v\u00e1 v\u011bt\u0161\u00ed mo\u017enost nerovnom\u011brn\u00e9ho ochlazov\u00e1n\u00ed, proh\u00fdb\u00e1n\u00ed nebo smr\u0161\u0165ov\u00e1n\u00ed.<\/p><\/div> <\/p>\n

Jak p\u0159esn\u011b zm\u011b\u0159it p\u0159\u00edmost v\u00fdlisku?<\/h2>\n

Kdysi jsem vid\u011bl debatu mezi t\u00fdmy kvality: ru\u010dn\u00ed m\u011b\u0159en\u00ed vs. laserov\u00e9 skenov\u00e1n\u00ed. Zjistil jsem, \u017ee zvolen\u00e1 metoda m\u00e1 velk\u00fd vliv na spolehlivost a n\u00e1klady.<\/p>\n

P\u0159esn\u00e9 m\u011b\u0159en\u00ed rovinnosti se prov\u00e1d\u00ed pomoc\u00ed prav\u00edtek, \u010d\u00edseln\u00edkov\u00fdch ukazatel\u016f, laserov\u00e9ho skenov\u00e1n\u00ed nebo syst\u00e9m\u016f CMM a mus\u00ed se \u0159\u00eddit definovan\u00fdmi toleran\u010dn\u00edmi tabulkami, jako je nap\u0159\u00edklad 0,012 palce na stopu pro mnoho standardn\u00edch profil\u016f.<\/strong><\/p>\n

\"CNC
CNC eloxovan\u00e9 zak\u0159iven\u00e9 hlin\u00edkov\u00e9 v\u00fdlisky 6063<\/figcaption><\/figure>\n<\/p>\n

Zde jsou uvedeny hlavn\u00ed metody m\u011b\u0159en\u00ed, jejich v\u00fdhody a nev\u00fdhody a zp\u016fsob jejich pou\u017eit\u00ed v praxi.<\/p>\n

Metody m\u011b\u0159en\u00ed<\/h3>\n
    \n
  1. P\u0159\u00edm\u011brka a m\u011brky<\/strong> <\/li>\n
  2. M\u011b\u0159en\u00ed \u010d\u00edseln\u00edkov\u00fdm indik\u00e1torem<\/strong> <\/li>\n
  3. Laserov\u00e9 skenov\u00e1n\u00ed \/ optick\u00e9 m\u011b\u0159en\u00ed<\/strong> <\/li>\n
  4. Sou\u0159adnicov\u00fd m\u011b\u0159ic\u00ed stroj (CMM)<\/strong><\/li>\n<\/ol>\n

    Zad\u00e1n\u00ed tolerance<\/h3>\n

    Tolerance vych\u00e1zej\u00ed z norem. Toleranci rovinnosti v\u017edy uv\u00e1d\u00edm ve smluvn\u00edch v\u00fdkresech (nap\u0159. \u201cOdchylka od rovinnosti nesm\u00ed p\u0159ekro\u010dit \u00b10,012\u2033 \/ stopu\u201d) a potvrzuji ji u dodavatele.<\/p>\n

    Kontroln\u00ed protokol, kter\u00fdm se \u0159\u00edd\u00edm<\/h3>\n
      \n
    • Zajist\u011bte, aby byl op\u011brn\u00fd povrch rovn\u00fd a stabiln\u00ed <\/li>\n
    • Pou\u017e\u00edvejte op\u011brky na konc\u00edch, kontrolujte uprost\u0159ed rozp\u011bt\u00ed <\/li>\n
    • Rozd\u011blen\u00ed dlouh\u00fdch \u010d\u00e1st\u00ed na \u00faseky <\/li>\n
    • Zaznamen\u00e1v\u00e1n\u00ed dat, porovn\u00e1n\u00ed se specifikac\u00ed<\/li>\n<\/ul>\n

      Tabulka m\u011b\u0159ic\u00edch technik<\/h3>\n\n\n\n\n\n\n\n\n
      Technika<\/th>\nP\u0159esnost<\/th>\nN\u00e1klady \/ slo\u017eitost<\/th>\nNejlep\u0161\u00ed pro<\/th>\n<\/tr>\n<\/thead>\n
      Straightedge\/feelers<\/td>\nM\u00edrn\u00e1<\/td>\nN\u00edzk\u00e1<\/td>\nObecn\u00e9 kontroly prodejny<\/td>\n<\/tr>\n
      Indik\u00e1tory \u010d\u00edseln\u00edku<\/td>\nVy\u0161\u0161\u00ed<\/td>\nSt\u0159edn\u00ed<\/td>\nSt\u0159edn\u011b p\u0159esn\u00e9 dlouh\u00e9 d\u00edly<\/td>\n<\/tr>\n
      Laserov\u00e9\/optick\u00e9 skenov\u00e1n\u00ed<\/td>\nVelmi vysok\u00e1<\/td>\nVysok\u00e1<\/td>\nP\u0159esn\u00e9 d\u00edly, slo\u017eit\u00e9 profily<\/td>\n<\/tr>\n
      CMM<\/td>\nVelmi vysok\u00e1<\/td>\nVelmi vysok\u00e1<\/td>\nVysoce p\u0159esn\u00e9 technick\u00e9 pot\u0159eby<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      <\/svg> Pro jak\u00fdkoli po\u017eadavek na rovnost je v\u017edy dosta\u010duj\u00edc\u00ed jednoduch\u00e1 kontrola pomoc\u00ed prav\u00edtka.<\/b>False<\/span><\/p>

      Pro kritick\u00e9 aplikace a p\u0159\u00edsn\u00e9 tolerance m\u016f\u017ee b\u00fdt zapot\u0159eb\u00ed pokro\u010dilej\u0161\u00ed m\u011b\u0159en\u00ed, jako je laserov\u00e9 skenov\u00e1n\u00ed.<\/p><\/div>
      \n

      <\/svg> Normy pro p\u0159\u00edmost ud\u00e1vaj\u00ed maxim\u00e1ln\u00ed p\u0159\u00edpustnou odchylku na d\u00e9lkov\u00fd \u00fasek, nap\u0159. na stopu.<\/b>Pravda<\/span><\/p>

      Normy jako 0,012\\<\/p><\/div> <\/p>\n

      M\u016f\u017ee n\u00e1sledn\u00e9 zpracov\u00e1n\u00ed zlep\u0161it rovnost vytla\u010dov\u00e1n\u00ed?<\/h2>\n

      Po mnoha letech pr\u00e1ce s vytla\u010dov\u00e1n\u00edm jsem se nau\u010dil: ano, vy m\u016f\u017ee<\/em> zlep\u0161it rovinnost po vytla\u010dov\u00e1n\u00ed - ale mus\u00edte s t\u00edm po\u010d\u00edtat, po\u010d\u00edtat s rozpo\u010dtem a zn\u00e1t limity.<\/p>\n

      Kroky n\u00e1sledn\u00e9ho zpracov\u00e1n\u00ed, jako je \u0159\u00edzen\u00e9 protahov\u00e1n\u00ed, rovn\u00e1n\u00ed na v\u00e1le\u010dc\u00edch, rovn\u00e1n\u00ed v hydraulick\u00e9m lisu a tepeln\u00e9 zpracov\u00e1n\u00ed, mohou zlep\u0161it rovnost v\u00fdlisku, a\u010dkoli zvy\u0161uj\u00ed n\u00e1klady, \u010das a mohou m\u00edt omezen\u00ed na z\u00e1klad\u011b geometrie profilu.<\/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

      Takto vid\u00edm cestu n\u00e1sledn\u00e9ho zpracov\u00e1n\u00ed v re\u00e1ln\u00fdch projektech.<\/p>\n

      Rovn\u00e1n\u00ed pomoc\u00ed protahov\u00e1n\u00ed<\/h3>\n

      Rovn\u00e1n\u00ed v\u00e1lc\u016f<\/h3>\n

      Rovn\u00e1n\u00ed lisem \/ rovn\u00e1n\u00ed za tepla<\/h3>\n

      Tepeln\u00e9 zpracov\u00e1n\u00ed \/ kalen\u00ed v\u011bkem<\/h3>\n

      Kdy\u017e m\u00e1 n\u00e1sledn\u00e9 zpracov\u00e1n\u00ed sv\u00e9 limity<\/h3>\n
        \n
      • Komplexn\u00ed geometrie <\/li>\n
      • \u0160patn\u00e1 slitina\/chlazen\u00ed <\/li>\n
      • Dlouh\u00e1 nepodep\u0159en\u00e1 rozp\u011bt\u00ed<\/li>\n<\/ul>\n

        Tabulka technik n\u00e1sledn\u00e9ho zpracov\u00e1n\u00ed<\/h3>\n\n\n\n\n\n\n\n\n
        Technika<\/th>\nPotenci\u00e1l zlep\u0161en\u00ed<\/th>\nTypick\u00fd p\u0159\u00edpad pou\u017eit\u00ed<\/th>\n<\/tr>\n<\/thead>\n
        Protahov\u00e1n\u00ed<\/td>\nM\u00edrn\u00e1 a\u017e vysok\u00e1<\/td>\nDlouh\u00e9 nosn\u00edky, konstruk\u010dn\u00ed r\u00e1my<\/td>\n<\/tr>\n
        Rovn\u00e1n\u00ed v\u00e1lc\u016f<\/td>\nVysok\u00e1 (pro line\u00e1rn\u00ed profily)<\/td>\nArchitektonick\u00e9 v\u00fdlisky, sol\u00e1rn\u00ed r\u00e1my<\/td>\n<\/tr>\n
        Lisov\u00e1n\u00ed\/rovn\u00e1n\u00ed za tepla<\/td>\nVelmi vysok\u00e1 (vybran\u00e9 \u010d\u00e1sti)<\/td>\nVysoce p\u0159esn\u00e9 a drah\u00e9 profily<\/td>\n<\/tr>\n
        Tepeln\u00e9 zpracov\u00e1n\u00ed<\/td>\nSt\u0159edn\u00ed<\/td>\nProfily vy\u017eaduj\u00edc\u00ed p\u0159\u00edsn\u00e9 tolerance<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        <\/svg> N\u00e1sledn\u00fdm rovn\u00e1n\u00edm lze v\u017edy opravit jak\u00fdkoli oblouk v lisovan\u00e9m profilu bez ohledu na jeho z\u00e1va\u017enost.<\/b>False<\/span><\/p>

        Existuj\u00ed praktick\u00e9 a geometrick\u00e9 limity; z\u00e1va\u017en\u00e9 zkreslen\u00ed nebo \u0161patn\u00e1 slitina\/chlazen\u00ed nemus\u00ed b\u00fdt pln\u011b korigov\u00e1ny.<\/p><\/div>
        \n

        <\/svg> Zahrnut\u00ed rovnac\u00edho procesu zvy\u0161uje n\u00e1klady a dobu realizace, proto by m\u011blo b\u00fdt zahrnuto pouze tehdy, pokud to aplikace vy\u017eaduje.<\/b>Pravda<\/span><\/p>

        Ano - jedn\u00e1 se o pr\u00e9miov\u00fd krok, kter\u00fd by m\u011bl b\u00fdt v p\u0159\u00edpad\u011b pot\u0159eby specifikov\u00e1n.<\/p><\/div> <\/p>\n

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

        Douf\u00e1m, \u017ee v\u00e1m to poskytne jasn\u011bj\u0161\u00ed p\u0159edstavu o tom, jak rovn\u00e9 mus\u00ed b\u00fdt hlin\u00edkov\u00e9 v\u00fdlisky, co tuto rovnost ovliv\u0148uje, jak ji m\u011b\u0159it a jak ji m\u016f\u017eete v p\u0159\u00edpad\u011b pot\u0159eby zlep\u0161it. Pokud p\u0159edem stanov\u00edte jasn\u00e9 specifikace a zahrnete spr\u00e1vn\u00e9 kroky zpracov\u00e1n\u00ed, m\u016f\u017eete omezit p\u0159ekvapen\u00ed a dod\u00e1vat rovn\u00e9 a spolehliv\u00e9 profily.<\/p>","protected":false},"excerpt":{"rendered":"

        Industrial Aluminum Extrusion I recently faced a big problem: an aluminium extrusion that looked great but bowed on installation. I felt the pain of surprise costs, wasted time and rework. In most standard extrusions, the straightness deviation is about\u202f0.012\u202finches (\u22480.30\u202fmm) per foot of length \u2014 though tighter tolerances can be achieved for critical parts. To […]<\/p>\n","protected":false},"author":6,"featured_media":8403,"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-26221","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\/26221","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=26221"}],"version-history":[{"count":0,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/26221\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media\/8403"}],"wp:attachment":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media?parent=26221"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/categories?post=26221"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/tags?post=26221"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}