{"id":10282,"date":"2026-08-18T13:30:42","date_gmt":"2026-08-18T13:30:42","guid":{"rendered":"https:\/\/premiumalu.com\/"},"modified":"2026-08-18T13:30:43","modified_gmt":"2026-08-18T13:30:43","slug":"2024-t851-aluminum-properties","status":"publish","type":"post","link":"https:\/\/premiumalu.com\/cs\/2024-t851-aluminum-properties\/","title":{"rendered":"2024-T851 Hlin\u00edk: Vlastnosti, tepeln\u00e9 zpracov\u00e1n\u00ed a jak jej specifikovat"},"content":{"rendered":"
\n

Co je hlin\u00edk 2024?<\/h2>\n\n\n\n

2024 je slitina \u0159ady 2000 s m\u011bd\u00ed jako hlavn\u00edm leguj\u00edc\u00edm prvkem (3,8\u20134,91 TP3T Cu) a ho\u0159\u010d\u00edkem (1,2\u20131,81 TP3T) plus manganem (0,30\u20130,901 TP3T) jako sekund\u00e1rn\u00edmi zpev\u0148uj\u00edc\u00edmi prvky. Vysok\u00e9 pevnosti dosahuje prost\u0159ednictv\u00edm precipita\u010dn\u00edho vytvrzen\u00ed po roztokov\u00e9m \u017e\u00edh\u00e1n\u00ed, co\u017e ji \u0159ad\u00ed mezi nejpevn\u011bj\u0161\u00ed tv\u00e1\u0159en\u00e9 hlin\u00edkov\u00e9 slitiny.<\/p>\n\n\n\n

Tento obsah m\u011bdi tak\u00e9 \u010din\u00ed slitinu 2024 nejm\u00e9n\u011b odolnou proti korozi z b\u011b\u017en\u00fdch leteck\u00fdch slitin a obecn\u011b nevhodnou pro tavn\u00e9 sva\u0159ov\u00e1n\u00ed \u2014 nechr\u00e1n\u011bn\u00e9 pr\u016f\u0159ezy jsou n\u00e1chyln\u00e9 k mezikrystalov\u00e9 a exfolia\u010dn\u00ed korozi a vy\u017eaduj\u00ed pl\u00e1tov\u00e1n\u00ed, eloxov\u00e1n\u00ed nebo n\u00e1t\u011br pro ochranu. Pr\u00e1v\u011b tento pom\u011br pevnosti k hmotnosti ve spojen\u00ed se spolehlivou obrobitelnost\u00ed \u010din\u00ed slitinu 2024 v\u00fdchoz\u00ed volbou pro draky letadel a vysoce nam\u00e1han\u00e9 konstruk\u010dn\u00ed d\u00edly.<\/p>\n\n\n\n

Pochopen\u00ed stavu T851<\/h2>\n\n\n\n

Ozna\u010den\u00ed \u201cT851\u201d popisuje t\u0159\u00edf\u00e1zov\u00e9 tepeln\u011b-mechanick\u00e9 zpracov\u00e1n\u00ed aplikovan\u00e9 na desky ze slitiny 2024 a srovnateln\u00e9 v\u00e1lcovan\u00e9 nebo kovan\u00e9 v\u00fdrobky:<\/p>\n\n\n\n

    \n
  1. Rozpou\u0161t\u011bc\u00ed \u017e\u00edh\u00e1n\u00ed.<\/strong> Deska se zah\u0159eje na p\u0159ibli\u017en\u011b 493 \u00b0C (920 \u00b0F), aby se precipit\u00e1ty bohat\u00e9 na m\u011b\u010f rozpustily do homogenn\u00edho tuh\u00e9ho roztoku, a pot\u00e9 se rychle ochlad\u00ed.<\/li>\n\n\n\n
  2. Odstran\u011bn\u00ed pnut\u00ed ta\u017een\u00edm.<\/strong> V kr\u00e1tk\u00e9m \u010dasov\u00e9m okn\u011b po ochlazen\u00ed se deska nat\u00e1hne o 1\u201331 TP3T sv\u00e9 d\u00e9lky. Tato \u0159\u00edzen\u00e1 plastick\u00e1 deformace uvol\u0148uje zbytkov\u00e1 pnut\u00ed uzam\u010den\u00e1 rychl\u00fdm ochlazen\u00edm.<\/li>\n\n\n\n
  3. Um\u011bl\u00e9 st\u00e1rnut\u00ed.<\/strong> Nata\u017een\u00e1 deska se zah\u0159eje na ni\u017e\u0161\u00ed teplotu (p\u0159ibli\u017en\u011b 190 \u00b0C \/ 375 \u00b0F), aby se vylou\u010dila zpev\u0148uj\u00edc\u00ed f\u00e1ze, \u010d\u00edm\u017e se pevnost zv\u00fd\u0161\u00ed na maximum.<\/li>\n<\/ol>\n\n\n\n

    Praktick\u00fdm v\u00fdsledkem je deska ze slitiny 2024, kter\u00e1 kombinuje maxim\u00e1ln\u00ed statickou pevnost slitiny s n\u00edzk\u00fdm zbytkov\u00fdm pnut\u00edm. P\u0159\u00ednos se projev\u00ed p\u0159i obr\u00e1b\u011bn\u00ed: deska T851 z\u016fst\u00e1v\u00e1 rovn\u00e1 a stabiln\u00ed p\u0159i odeb\u00edr\u00e1n\u00ed materi\u00e1lu, proto je preferov\u00e1na pro p\u0159esn\u011b obr\u00e1b\u011bn\u00e9 fitinky a bloky. Pro v\u00fdkovky je ekvivalentn\u00edm stavem s tlakov\u00fdm odleh\u010den\u00edm pnut\u00ed T852; p\u0159\u00edpona \u201c1\u201d ozna\u010duje odleh\u010den\u00ed tahem pro desky a v\u00e1lcovan\u00e9 v\u00fdrobky.<\/p>\n\n\n\n

    Jak se T851 li\u0161\u00ed od T351<\/h3>\n\n\n\n

    T851 a T351 sd\u00edlej\u00ed stejn\u00e9 roztokov\u00e9 \u017e\u00edh\u00e1n\u00ed a odleh\u010den\u00ed pnut\u00ed tahem. Rozd\u00edl je v posledn\u00edm kroku: T351 je p\u0159irozen\u011b st\u00e1rnut<\/strong> p\u0159i pokojov\u00e9 teplot\u011b, zat\u00edmco T851 je um\u011ble st\u00e1rnut<\/strong> p\u0159i zv\u00fd\u0161en\u00e9 teplot\u011b. Tato jedin\u00e1 zm\u011bna zvy\u0161uje mez kluzu z p\u0159ibli\u017en\u011b 325 MPa (T351) na p\u0159ibli\u017en\u011b 450 MPa (T851) \u2014 nejv\u011bt\u0161\u00ed n\u00e1r\u016fst pevnosti mezi jak\u00fdmikoli dv\u011bma stavy slitiny 2024 \u2014 ale sni\u017euje ta\u017enost z p\u0159ibli\u017en\u011b 191 TP3T na p\u0159ibli\u017en\u011b 51 TP3T. T851 ob\u011btuje ta\u017enost ve prosp\u011bch maxim\u00e1ln\u00ed pevnosti a obr\u00e1b\u011bc\u00ed stability.<\/p>\n\n\n\n

    Mechanick\u00e9 vlastnosti 2024-T851<\/h2>\n\n\n\n
    \"\"<\/figure>\n\n\n\n
    Majetek<\/th>Hodnota<\/th>Pozn\u00e1mka<\/th><\/tr><\/thead>
    Hustota<\/td>2,78 g\/cm\u00b3<\/td>Typick\u00e9 pro \u0159adu 2xxx<\/td><\/tr>
    Mez pevnosti v tahu<\/td>510 MPa (74 ksi)<\/td>Deska, pokojov\u00e1 teplota<\/td><\/tr>
    Mez kluzu v tahu (0,2 % offset)<\/td>450 MPa (65 ksi)<\/td>Maximum mezi stavy slitiny 2024<\/td><\/tr>
    Prodlou\u017een\u00ed p\u0159i p\u0159etr\u017een\u00ed<\/td>~5%<\/td>Mnohem ni\u017e\u0161\u00ed ne\u017e T351 (~191 TP3T)<\/td><\/tr>
    Mez \u00fanavy (5\u00d710\u2078 cykl\u016f)<\/td>~120 MPa (17 ksi)<\/td>Hladk\u00fd vzorek, R = \u22121<\/td><\/tr>
    Smykov\u00e1 pevnost<\/td>300 MPa (43 ksi)<\/td>Relevantn\u00ed pro spojovac\u00ed prvky<\/td><\/tr>
    Modul pru\u017enosti<\/td>73 GPa (10,6\u00d710\u00b3 ksi)<\/td>P\u0159ibli\u017en\u011b jedna t\u0159etina oceli<\/td><\/tr>
    Tepeln\u00e1 vodivost<\/td>121 W\/m\u00b7K<\/td>Dobr\u00fd odvod tepla<\/td><\/tr>
    Koeficient tepeln\u00e9 rozta\u017enosti<\/td>23 \u00b5m\/m\u00b7K<\/td>\u2014<\/td><\/tr>
    M\u011brn\u00e1 tepeln\u00e1 kapacita<\/td>875 J\/kg\u00b7K<\/td>\u2014<\/td><\/tr>
    Rozsah t\u00e1n\u00ed<\/td>502\u2013638 \u00b0C<\/td>Solidus a\u017e likvidus<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    Mez kluzu 450 MPa je hodnota, kter\u00e1 poh\u00e1n\u00ed v\u011bt\u0161inu n\u00e1vrh\u016f s T851 \u2014 le\u017e\u00ed v\u00fdrazn\u011b nad 6061-T6 (p\u0159ibli\u017en\u011b 276 MPa) a p\u0159ibli\u017en\u011b o 401 TP3T nad T351, co\u017e konstrukt\u00e9r\u016fm umo\u017e\u0148uje zmen\u0161it pr\u016f\u0159ezy nebo p\u0159idat rezervu u d\u00edl\u016f nam\u00e1han\u00fdch tlakem. Kompromisem je ta\u017enost a koroze, jak je pops\u00e1no n\u00ed\u017ee.<\/p>\n\n\n\n

    Kde se 2024-T851 pou\u017e\u00edv\u00e1<\/h2>\n\n\n\n

    Kombinace maxim\u00e1ln\u00ed pevnosti, n\u00edzk\u00e9ho zbytkov\u00e9ho pnut\u00ed a rozm\u011brov\u00e9 stability po obr\u00e1b\u011bn\u00ed \u010din\u00ed stav T851 volbou \u010d\u00edslo jedna pro tlust\u00e9 desky ze slitiny 2024, kter\u00e9 budou obr\u00e1b\u011bny na vysoce nam\u00e1han\u00e9 komponenty.<\/p>\n\n\n\n

    Leteck\u00e9 a obrann\u00e9 konstrukce<\/h3>\n\n\n\n

    Nosn\u00edky k\u0159\u00eddel a spodn\u00ed potahy k\u0159\u00eddel, r\u00e1my trupu, p\u0159ep\u00e1\u017eky a konstruk\u010dn\u00ed fitinky jsou \u010dasto obr\u00e1b\u011bny z desek 2024-T851, proto\u017ee stav s odleh\u010den\u00fdm pnut\u00edm udr\u017euje velk\u00e9 nebo asymetrick\u00e9 pr\u016f\u0159ezy stabiln\u00ed b\u011bhem fr\u00e9zov\u00e1n\u00ed. Komponenty podvozku, t\u011blesa hydraulick\u00fdch ventil\u016f a vysoce pevn\u00e9 spojovac\u00ed prvky pou\u017e\u00edvaj\u00ed stejn\u00fd stav tam, kde jsou statick\u00e1 pevnost a p\u0159esnost obr\u00e1b\u011bn\u00ed nezbytn\u00e9. V t\u011bchto aplikac\u00edch je deska obvykle pl\u00e1tovan\u00e1 nebo povrchov\u011b chr\u00e1n\u011bn\u00e1, proto\u017ee nechr\u00e1n\u011bn\u00e1 slitina 2024 nep\u0159e\u017eije v agresivn\u00edm prost\u0159ed\u00ed bez ochrany.<\/p>\n\n\n\n

    P\u0159esn\u00e9 n\u00e1stroje a vysoce pevn\u00e9 bloky<\/h3>\n\n\n\n

    Z\u00e1vodn\u00ed ramena n\u00e1prav, vahadla a konstruk\u010dn\u00ed dr\u017e\u00e1ky obr\u00e1b\u011bn\u00e9 z desky T851 p\u0159in\u00e1\u0161ej\u00ed \u00fasporu hmotnosti oproti oceli bez ztr\u00e1ty tuhosti. P\u0159esn\u00e9 p\u0159\u00edpravky, kontroln\u00ed p\u0159\u00edpravky a automatiza\u010dn\u00ed r\u00e1my pou\u017e\u00edvaj\u00ed T851, proto\u017ee z\u016fst\u00e1v\u00e1 rovn\u00e1 p\u0159i teplotn\u00edch v\u00fdkyvech a opakovan\u00e9m zat\u011b\u017eov\u00e1n\u00ed. Tam, kde je d\u00edl sva\u0159ov\u00e1n sp\u00ed\u0161e ne\u017e spojov\u00e1n spojovac\u00edmi prvky, je obvykle lep\u0161\u00edm v\u00fdchoz\u00edm bodem slitina 6061 \u2014 viz pracovn\u00ed pozn\u00e1mky n\u00ed\u017ee.<\/p>\n\n\n\n

    T851 vs ostatn\u00ed stavy slitiny 2024 \u2014 jak vybrat<\/h2>\n\n\n\n
    \"\"<\/figure>\n\n\n\n
    Temperament<\/th>Zpracov\u00e1n\u00ed<\/th>Mez pevnosti<\/th>Mez kluzu<\/th>Nejlep\u0161\u00ed pro<\/th>Vyhnout se, kdy\u017e<\/th><\/tr><\/thead>
    T851<\/td>Roztok + tah + um\u011bl\u00e9 st\u00e1rnut\u00ed (deska)<\/td>510 MPa (74 ksi)<\/td>450 MPa (65 ksi)<\/td>Deska s maxim\u00e1ln\u00ed pevnost\u00ed pro obr\u00e1b\u011bn\u00ed, fitinky<\/td>Sva\u0159ov\u00e1n\u00ed, tv\u00e1\u0159en\u00ed, slan\u00e1 voda<\/td><\/tr>
    T3511<\/td>Roztok + tah + rovn\u00e1n\u00ed (protla\u010dovan\u00fd profil)<\/td>425 MPa (62 ksi)<\/td>310 MPa (45 ksi)<\/td>Obr\u00e1b\u011bn\u00e9 protla\u010dovan\u00e9 profily, rozm\u011brov\u00e1 stabilita<\/td>Vy\u017eadov\u00e1no sva\u0159ov\u00e1n\u00ed, p\u016fsoben\u00ed slan\u00e9 vody<\/td><\/tr>
    T3<\/td>Rozpou\u0161t\u011bc\u00ed \u017e\u00edh\u00e1n\u00ed + tv\u00e1\u0159en\u00ed za studena + p\u0159irozen\u00e9 st\u00e1rnut\u00ed<\/td>483 MPa (70 ksi)<\/td>345 MPa (50 ksi)<\/td>Tenk\u00e9 potahy, tv\u00e1\u0159en\u00e9 d\u00edly<\/td>Tlust\u00e9 pr\u016f\u0159ezy vy\u017eaduj\u00edc\u00ed stabilitu<\/td><\/tr>
    T4<\/td>Roztok + p\u0159irozen\u00e9 st\u00e1rnut\u00ed<\/td>469 MPa (68 ksi)<\/td>324 MPa (47 ksi)<\/td>D\u00edly s vysokou ta\u017enost\u00ed<\/td>Koroze bez pl\u00e1tov\u00e1n\u00ed<\/td><\/tr>
    T351<\/td>Roztok + tah + p\u0159irozen\u00e9 st\u00e1rnut\u00ed (deska)<\/td>470 MPa (68 ksi)<\/td>325 MPa (47 ksi)<\/td>\u017debra k\u0159\u00eddel, p\u0159ep\u00e1\u017eky, m\u00edrn\u00e9 tv\u00e1\u0159en\u00ed<\/td>Po\u017eadov\u00e1na maxim\u00e1ln\u00ed pevnost<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    Kdy je T851 spr\u00e1vn\u00e1 volba<\/h3>\n\n\n\n

    Dv\u011b podm\u00ednky ukazuj\u00ed na T851: d\u00edl je deska nebo kovan\u00fd blok, kter\u00fd bude obr\u00e1b\u011bn, a pot\u0159ebuje co nejvy\u0161\u0161\u00ed statickou pevnost nebo obr\u00e1b\u011bc\u00ed stabilitu. Pokud plat\u00ed ob\u011b, um\u011bl\u00e9 st\u00e1rnut\u00ed se vyplat\u00ed d\u00edky sn\u00ed\u017een\u00e9mu odpadu a p\u0159epracov\u00e1n\u00ed u velk\u00fdch, tenk\u00fdch nebo rozm\u011brov\u011b kritick\u00fdch pr\u016f\u0159ez\u016f.<\/p>\n\n\n\n

    Kdy se hod\u00ed jin\u00e9 temperov\u00e1n\u00ed<\/h3>\n\n\n\n

    Pokud je geometri\u00ed protla\u010dovan\u00e1 ty\u010d, trubka nebo profil, T3511 poskytuje stejn\u00e9 odleh\u010den\u00ed pnut\u00ed ve spr\u00e1vn\u00e9 form\u011b v\u00fdrobku. Pokud je vy\u017eadov\u00e1no m\u00edrn\u00e9 tv\u00e1\u0159en\u00ed, T351 nebo T4 zachov\u00e1v\u00e1 dostate\u010dnou ta\u017enost pro oh\u00fdb\u00e1n\u00ed nebo tvarov\u00e1n\u00ed d\u00edlu. Pokud je sou\u010d\u00e1st\u00ed po\u017eadavk\u016f sva\u0159ov\u00e1n\u00ed nebo p\u016fsoben\u00ed slan\u00e9 vody, opus\u0165te slitinu 2024 \u00fapln\u011b \u2014 slitina 6061 nebo n\u011bkter\u00e1 ze slitin \u0159ady 5xxx odstra\u0148uje omezen\u00ed koroze a sva\u0159itelnosti za cenu ni\u017e\u0161\u00ed pevnosti.<\/p>\n\n\n\n

    Pr\u00e1ce s 2024-T851 \u2014 Co pot\u0159ebujete v\u011bd\u011bt<\/h2>\n\n\n\n

    Obr\u00e1b\u011bn\u00ed.<\/strong> 2024-T851 se obr\u00e1b\u00ed \u010dist\u011b s dobrou kontrolou t\u0159\u00edsky a podporuje vysok\u00e9 \u0159ezn\u00e9 rychlosti, proto je z\u00e1kladn\u00edm materi\u00e1lem pro p\u0159esn\u00e9 CNC desky a v\u00fdrobky z automat\u016f. Opot\u0159eben\u00ed n\u00e1stroje z\u016fst\u00e1v\u00e1 zvl\u00e1dnuteln\u00e9, ale ostr\u00e1 geometrie n\u00e1stroje a st\u00e1l\u00fd pr\u016ftok chladic\u00ed kapaliny udr\u017euj\u00ed kvalitu povrchu na tenk\u00fdch pr\u016f\u0159ezech. N\u00edzk\u00e9 zbytkov\u00e9 nap\u011bt\u00ed je skute\u010dnou v\u00fdhodou: d\u00edly z\u016fst\u00e1vaj\u00ed rovn\u00e9 i p\u0159i rozs\u00e1hl\u00e9m odeb\u00edr\u00e1n\u00ed materi\u00e1lu.<\/p>\n\n\n\n

    Sva\u0159ov\u00e1n\u00ed a spojov\u00e1n\u00ed.<\/strong> Tavn\u00e9 sva\u0159ov\u00e1n\u00ed se u 2024 nedoporu\u010duje. M\u011bd\u00ed bohat\u00e9 slo\u017een\u00ed \u010din\u00ed svar a tepeln\u011b ovlivn\u011bnou oblast n\u00e1chyln\u00fdmi k hork\u00e9mu prask\u00e1n\u00ed a pevnost po sva\u0159en\u00ed m\u016f\u017ee klesnout hluboko pod \u00farove\u0148 z\u00e1kladn\u00edho materi\u00e1lu. Pro sestavy pou\u017e\u00edvejte n\u00fdty, \u0161rouby nebo lepen\u00e9 spoje; pokud je sva\u0159ovan\u00e1 konstrukce nevyhnuteln\u00e1, zm\u011b\u0148te n\u00e1vrh na 6061-T6 a akceptujte ni\u017e\u0161\u00ed pevnost.<\/p>\n\n\n\n

    Protikorozn\u00ed ochrana.<\/strong> Hol\u00fd 2024 m\u00e1 \u0161patnou odolnost proti korozi a je n\u00e1chyln\u00fd na mezikrystalov\u00e9 a exfolia\u010dn\u00ed napaden\u00ed, zejm\u00e9na v prost\u0159ed\u00ed s chloridy. Pro k\u016f\u017ee letadel specifikujte alclad (metalurgicky v\u00e1zan\u00e1 vrstva \u010dist\u00e9ho hlin\u00edku na povrchu) nebo kombinujte eloxov\u00e1n\u00ed s n\u00e1t\u011brem pro uzav\u0159en\u00e9 konstrukce. Pro p\u0159\u00edm\u00e9 pono\u0159en\u00ed do slan\u00e9 vody nebo mo\u0159sk\u00e9ho prost\u0159ed\u00ed je 2024 \u0161patnou volbou bez ohledu na tepeln\u00e9 zpracov\u00e1n\u00ed.<\/p>\n\n\n\n

    Tv\u00e1\u0159itelnost.<\/strong> T851 se dod\u00e1v\u00e1 jako um\u011ble st\u00e1rnut\u00e1 deska s t\u00e9m\u011b\u0159 maxim\u00e1ln\u00ed pevnost\u00ed, proto nen\u00ed ur\u010dena pro t\u011b\u017ek\u00e9 tv\u00e1\u0159en\u00ed za studena po zpracov\u00e1n\u00ed \u2014 oh\u00fdb\u00e1n\u00ed riskuje prask\u00e1n\u00ed, proto\u017ee ta\u017enost je pouze asi 5 %. Pokud je to mo\u017en\u00e9, tvarujte profil p\u0159ed kone\u010dn\u00fdm st\u00e1rnut\u00edm, nebo zvolte T351\/T4, pokud n\u00e1vrh vy\u017eaduje ohyby.<\/p>\n\n\n\n

    V\u00fdhody a omezen\u00ed na prvn\u00ed pohled<\/h2>\n\n\n\n
    \"\"<\/figure>\n\n\n\n
    Rozm\u011br<\/th>V\u00fdhoda<\/th>Omezen\u00ed<\/th><\/tr><\/thead>
    Pom\u011br pevnosti k hmotnosti<\/td>Nejvy\u0161\u0161\u00ed statick\u00e1 pevnost z tv\u00e1\u0159en\u00fdch slitin 2024<\/td>\u2014<\/td><\/tr>
    Stabilita p\u0159i obr\u00e1b\u011bn\u00ed<\/td>Deska bez vnit\u0159n\u00edho pnut\u00ed, n\u00edzk\u00e1 deformace<\/td>\u2014<\/td><\/tr>
    Odolnost proti \u00fanav\u011b<\/td>Pevn\u00e1 pro konstrukce s cyklick\u00fdm zat\u00ed\u017een\u00edm<\/td>Ni\u017e\u0161\u00ed \u00fanavov\u00e1 \u017eivotnost p\u0159i vysok\u00e9m po\u010dtu cykl\u016f ne\u017e T351<\/td><\/tr>
    Odolnost proti korozi<\/td>\u2014<\/td>\u0160patn\u00e1; vy\u017eaduje pl\u00e1tov\u00e1n\u00ed nebo povlakov\u00e1n\u00ed<\/td><\/tr>
    Sva\u0159itelnost<\/td>\u2014<\/td>Tavn\u00e9 sva\u0159ov\u00e1n\u00ed se nedoporu\u010duje<\/td><\/tr>
    Dostupnost<\/td>Skladov\u00e9 i zak\u00e1zkov\u00e9 desky k dispozici<\/td>Nen\u00ed univerz\u00e1ln\u00ed n\u00e1hradou plechu<\/td><\/tr>
    N\u00e1klady<\/td>\u2014<\/td>Vy\u0161\u0161\u00ed ne\u017e u 6061<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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

    2024-T851 p\u0159in\u00e1\u0161\u00ed nejvy\u0161\u0161\u00ed statickou pevnost a nejlep\u0161\u00ed obr\u00e1b\u011bc\u00ed stabilitu ze v\u0161ech tepeln\u00fdch zpracov\u00e1n\u00ed 2024 pro tlust\u00e9 desky a kovan\u00e9 bloky \u2014 ale za cenu ztr\u00e1ty ta\u017enosti, odolnosti proti korozi a sva\u0159itelnosti. Tento kompromis je zvl\u00e1dnuteln\u00fd pouze se spr\u00e1vn\u00fdm pl\u00e1nem ochrany a spojov\u00e1n\u00ed a pr\u00e1v\u011b zaji\u0161t\u011bn\u00ed spr\u00e1vn\u00e9 desky s dokumentac\u00ed je m\u00edstem, kde projekty v\u00e1znou.<\/p>\n\n\n\n

    Spole\u010dnost Linsy Aluminum dod\u00e1v\u00e1 Hlin\u00edk 2024 ve form\u011b desek, ty\u010d\u00ed, trubek, profil\u016f,<\/a> a dr\u00e1t\u016f \u2014 v\u010detn\u011b desek T851 \u2014 s \u00fazk\u00fdmi tolerancemi a tepeln\u00fdm zpracov\u00e1n\u00edm p\u0159izp\u016fsoben\u00fdm va\u0161\u00ed aplikaci. Skladov\u00e9 standardn\u00ed rozm\u011bry a zak\u00e1zkov\u00e1 v\u00fdroba s n\u00edzk\u00fdm minim\u00e1ln\u00edm mno\u017estv\u00edm se obvykle dod\u00e1vaj\u00ed za 10\u201360 dn\u00ed, ka\u017ed\u00e1 objedn\u00e1vka je expedov\u00e1na s MTC certifik\u00e1tem, protokoly SGS (v\u010detn\u011b ultrazvukov\u00e9ho testov\u00e1n\u00ed pro tlust\u00e9 desky) jsou k dispozici na vy\u017e\u00e1d\u00e1n\u00ed a z\u00e1vod dr\u017e\u00ed certifikace ISO 9001, 14001 a 45001.<\/p>\n\n\n\n

    Pokud v\u00e1\u0161 d\u00edl vy\u017eaduje maxim\u00e1ln\u00ed pevnost a obr\u00e1b\u011bc\u00ed stabilitu 2024-T851, za\u0161lete v\u00fdkres nebo specifikaci spole\u010dnosti Linsy Aluminum<\/a> pro kontrolu skladov\u00fdch z\u00e1sob a cenovou nab\u00eddku na hlin\u00edkovou desku 2024-T851.<\/p>\n\n\n\n

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

    Jak\u00fd je rozd\u00edl mezi 2024-T851 a 2024-T351?<\/h3>\n\n\n\n

    Ob\u011b sd\u00edlej\u00ed rozpou\u0161t\u011bc\u00ed \u017e\u00edh\u00e1n\u00ed a protahovac\u00ed odstran\u011bn\u00ed pnut\u00ed, ale T351 je p\u0159irozen\u011b st\u00e1rnut\u00e1 p\u0159i pokojov\u00e9 teplot\u011b, zat\u00edmco T851 je um\u011ble st\u00e1rnut\u00e1. Tento jedin\u00fd krok zvy\u0161uje mez kluzu z p\u0159ibli\u017en\u011b 325 MPa (T351) na zhruba 450 MPa (T851) a sni\u017euje ta\u017enost z p\u0159ibli\u017en\u011b 19 % na asi 5 % \u2014 T851 vym\u011b\u0148uje ta\u017enost za maxim\u00e1ln\u00ed pevnost.<\/p>\n\n\n\n

    Lze 2024-T851 sva\u0159ovat?<\/h3>\n\n\n\n

    Ne. Tavn\u00e9 sva\u0159ov\u00e1n\u00ed se nedoporu\u010duje. Slitina bohat\u00e1 na m\u011b\u010f prask\u00e1 ve svaru a tepeln\u011b ovlivn\u011bn\u00e9 oblasti a ztr\u00e1c\u00ed velkou \u010d\u00e1st sv\u00e9 pevnosti. Pou\u017eijte mechanick\u00e9 spojov\u00e1n\u00ed nebo lepen\u00ed, p\u0159\u00edpadn\u011b zvolte 6061-T6, pokud je sva\u0159ov\u00e1n\u00ed vy\u017eadov\u00e1no.<\/p>\n\n\n\n

    Je 2024-T851 vhodn\u00e1 pro mo\u0159sk\u00e9 nebo slanovodn\u00ed prost\u0159ed\u00ed?<\/h3>\n\n\n\n

    Ne. Hol\u00fd 2024 m\u00e1 \u0161patnou odolnost proti korozi a v prost\u0159ed\u00ed s chloridy bude d\u016flkovat nebo exfoliovat. Pro slanou vodu nebo mo\u0159sk\u00e9 pono\u0159en\u00ed je bezpe\u010dn\u011bj\u0161\u00ed volbou slitina \u0159ady 5xxx nebo 6xxx; 2024 pat\u0159\u00ed do uzav\u0159en\u00fdch nebo dob\u0159e povlakovan\u00fdch konstrukc\u00ed.<\/p>\n\n\n\n

    Jak\u00e9 jsou hlavn\u00ed v\u00fdhody 2024-T851?<\/h3>\n\n\n\n

    Maxim\u00e1ln\u00ed statick\u00e1 pevnost mezi tepeln\u00fdmi zpracov\u00e1n\u00edmi 2024 (mez kluzu asi 450 MPa), n\u00edzk\u00e9 zbytkov\u00e9 nap\u011bt\u00ed, kter\u00e9 udr\u017euje velk\u00e9 obr\u00e1b\u011bn\u00e9 desky rovn\u00e9 a stabiln\u00ed, a dobr\u00e1 \u00fanavov\u00e1 odolnost pro konstrukce s cyklick\u00fdm zat\u00ed\u017een\u00edm. Je standardn\u00ed volbou pro obr\u00e1b\u011bn\u00e9 vysoce pevn\u00e9 leteck\u00e9 desky.<\/p>\n\n\n\n

    Jak si 2024-T851 stoj\u00ed ve srovn\u00e1n\u00ed s 6061-T6?<\/h3>\n\n\n\n

    T851 poskytuje p\u0159ibli\u017en\u011b o 40\u201360 % vy\u0161\u0161\u00ed mez kluzu a lep\u0161\u00ed obr\u00e1b\u011bc\u00ed stabilitu, ale ztr\u00e1c\u00ed odolnost proti korozi a sva\u0159itelnost a je dra\u017e\u0161\u00ed. 6061-T6 je lep\u0161\u00ed volbou, pokud mus\u00ed b\u00fdt d\u00edl sva\u0159ov\u00e1n, je vystaven mo\u0159sk\u00e9mu prost\u0159ed\u00ed nebo mus\u00ed z\u016fstat cenov\u011b dostupn\u00fd; 2024-T851 v\u00edt\u011bz\u00ed, kdy\u017e dominuj\u00ed pom\u011br pevnosti k hmotnosti a p\u0159esnost obr\u00e1b\u011bn\u00ed.<\/p>\n<\/blockquote>\n\n\n\n

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