{"id":26448,"date":"2025-11-26T11:26:43","date_gmt":"2025-11-26T03:26:43","guid":{"rendered":"https:\/\/sinoextrud.com\/?p=26448"},"modified":"2025-11-26T11:26:59","modified_gmt":"2025-11-26T03:26:59","slug":"co-je-oxid-v-extrudovanem-hliniku","status":"publish","type":"post","link":"https:\/\/sinoextrud.com\/cs\/what-is-oxide-in-aluminum-extrusion\/","title":{"rendered":"Co je oxid v extrudovan\u00e9m hlin\u00edku?"},"content":{"rendered":"

\"Hlin\u00edkov\u00e9
Hlin\u00edkov\u00e9 vytla\u010dov\u00e1n\u00ed protipovod\u0148ov\u00e9 bari\u00e9ry Hlin\u00edkov\u00fd profil<\/figcaption><\/figure>\n<\/p>\n

Pokud jde o extruzi hlin\u00edku, slovo \u201coxid\u201d m\u016f\u017ee zn\u00edt jako nepodstatn\u00fd detail, ale ve skute\u010dnosti m\u00e1 velk\u00fd vliv na kvalitu, povrchovou \u00fapravu a v\u00fdkon.
\nOxid hlinit\u00fd je tenk\u00e1 vrstva Al\u2082O\u2083, kter\u00e1 se tvo\u0159\u00ed bu\u010f p\u0159irozen\u011b, nebo p\u0159i vystaven\u00ed hlin\u00edku kysl\u00edku \u2013 tato vrstva hraje p\u0159i extruzi jak ochrannou, tak problematickou roli.<\/strong><\/p>\n

Pod\u00edvejme se, jak se oxid tvo\u0159\u00ed, jak ovliv\u0148uje kvalitu extruze, jak odstranit ne\u017e\u00e1douc\u00ed oxid p\u0159ed extruz\u00ed a zda mohou povlaky zabr\u00e1nit oxidaci.<\/p>\n

\n

Jak vznik\u00e1 oxid na hlin\u00edku?<\/h2>\n

K tvorb\u011b oxidu na hlin\u00edku doch\u00e1z\u00ed v podstat\u011b v\u017edy, kdy\u017e se povrch kovu dostane do styku s kysl\u00edkem, vlhkost\u00ed nebo vysokou teplotou.<\/p>\n

Na povrchu hlin\u00edkov\u00e9 slitiny reaguj\u00ed atomy hlin\u00edku s kysl\u00edkem ve vzduchu (nebo v procesn\u00ed atmosf\u00e9\u0159e) a vytv\u00e1\u0159ej\u00ed tenkou, pevnou vrstvu oxidu hlinit\u00e9ho (Al\u2082O\u2083).<\/strong><\/p>\n

\"Hlin\u00edkov\u00fd
Hlin\u00edkov\u00fd vytla\u010dovac\u00ed pr\u016fmysl Modul\u00e1rn\u00ed komponenty Profil<\/figcaption><\/figure>\n<\/p>\n

Kdy\u017e p\u0159ed extruz\u00ed zah\u0159\u00edv\u00e1te hlin\u00edkovou ingotu nebo ji uchov\u00e1v\u00e1te v hork\u00e9 n\u00e1dob\u011b, zv\u00fd\u0161en\u00e1 teplota zvy\u0161uje reaktivitu. V procesu extruze se ingota zah\u0159\u00edv\u00e1 (nap\u0159. na 800\u2013925 \u00b0F) a um\u00edst\u00ed se do n\u00e1doby, kde se protla\u010duje matric\u00ed. V\u00fdrobce m\u016f\u017ee kolem matrice nebo n\u00e1doby vytvo\u0159it inertn\u00ed atmosf\u00e9ru (nap\u0159. dus\u00edk), aby se sn\u00ed\u017eila tvorba oxid\u016f. <\/p>\n

Pro\u010d se tvo\u0159\u00ed oxid<\/h3>\n
    \n
  • Hlin\u00edk je vysoce reaktivn\u00ed s kysl\u00edkem; reakce je rychl\u00e1 a vytv\u00e1\u0159\u00ed pasiva\u010dn\u00ed vrstvu. <\/li>\n
  • V tepeln\u00e9m prost\u0159ed\u00ed nebo prost\u0159ed\u00ed s vysok\u00fdm obsahem kysl\u00edku (p\u0159edeh\u0159\u00edv\u00e1n\u00ed, vystaven\u00ed) se m\u016f\u017ee tvo\u0159it v\u00edce oxidu nebo m\u016f\u017ee vzniknout siln\u011bj\u0161\u00ed vrstva. <\/li>\n
  • Kontaminace povrchu (ne\u010distoty, olej, vlhkost) m\u016f\u017ee podporovat tvorbu oxid\u016f nebo jin\u00fdch vrstev, kter\u00e9 mohou p\u016fsobit ru\u0161iv\u011b. <\/li>\n<\/ul>\n

    Jak oxid vypad\u00e1 a jak\u00e9 m\u00e1 vlastnosti<\/h3>\n
      \n
    • Hlin\u00edk p\u0159irozen\u011b rychle vytv\u00e1\u0159\u00ed ultratenk\u00fd oxidov\u00fd film (o tlou\u0161\u0165ce n\u011bkolika nanometr\u016f), kter\u00fd mu dod\u00e1v\u00e1 odolnost proti korozi. <\/li>\n
    • P\u0159i extruzn\u00edch operac\u00edch se m\u016f\u017ee oxidace povrchu projevit jako matnost nebo povrchov\u00e1 vada, pokud nen\u00ed kontrolov\u00e1na. <\/li>\n
    • Oxidov\u00e1 vrstva pevn\u011b p\u0159ilne; na rozd\u00edl od rzi na \u017eeleze, kter\u00e1 se odlupuje, oxid hlinit\u00fd m\u00e1 tendenci z\u016fstat p\u0159ilepen\u00fd. <\/li>\n<\/ul>\n

      \"Hlin\u00edkov\u00e9
      Hlin\u00edkov\u00e9 vytla\u010dovac\u00ed p\u0159\u00edslu\u0161enstv\u00ed<\/figcaption><\/figure>\n<\/p>\n

      Pro\u010d je to d\u016fle\u017eit\u00e9 p\u0159i vytla\u010dov\u00e1n\u00ed<\/h3>\n

      Vzhledem k tomu, \u017ee proces vytla\u010dov\u00e1n\u00ed zahrnuje zah\u0159\u00edv\u00e1n\u00ed, vysok\u00e9 tlaky a prot\u00e9k\u00e1n\u00ed kovu skrz matrici, m\u016f\u017ee jak\u00fdkoli povrchov\u00fd film (oxid nebo ne\u010distota) ovlivnit tok kovu, povrchovou \u00fapravu a opot\u0159eben\u00ed matrice. Pokud je film p\u0159\u00edli\u0161 siln\u00fd nebo nerovnom\u011brn\u00fd, m\u016f\u017ee doj\u00edt k drsnosti povrchu, nerovnom\u011brn\u00e9 povrchov\u00e9 \u00faprav\u011b, prask\u00e1n\u00ed nebo vnit\u0159n\u00edm vad\u00e1m.<\/p>\n

      <\/svg> Hlin\u00edk vytv\u00e1\u0159\u00ed ochrannou vrstvu oxidu t\u00e9m\u011b\u0159 okam\u017eit\u011b po vystaven\u00ed vzduchu.<\/b>Pravda<\/span><\/p>

      Atomy hlin\u00edku rychle reaguj\u00ed s kysl\u00edkem a vytv\u00e1\u0159ej\u00ed vrstvu Al\u2082O\u2083, kter\u00e1 pasivuje povrch kovu.<\/p><\/div>
      \n

      <\/svg> K tvorb\u011b oxidu na hlin\u00edku doch\u00e1z\u00ed pouze p\u0159i zah\u0159\u00e1t\u00ed kovu na velmi vysok\u00e9 teploty.<\/b>False<\/span><\/p>

      Hlin\u00edk tvo\u0159\u00ed tenkou vrstvu oxidu ji\u017e p\u0159i pokojov\u00e9 teplot\u011b, pokud je vystaven p\u016fsoben\u00ed kysl\u00edku; zv\u00fd\u0161en\u00e9 teploty pouze urychluj\u00ed nebo zesiluj\u00ed tuto vrstvu.<\/p><\/div><\/p>\n

      \n

      Pro\u010d oxid m\u016f\u017ee ovlivnit kvalitu extruze?<\/h2>\n

      Na prvn\u00ed pohled se oxid m\u016f\u017ee jevit jako ne\u0161kodn\u00fd nebo dokonce prosp\u011b\u0161n\u00fd (proto\u017ee chr\u00e1n\u00ed kov), ale p\u0159i extruzn\u00edch operac\u00edch m\u016f\u017ee p\u0159edstavovat kompromis. <\/p>\n

      Oxid m\u016f\u017ee negativn\u011b ovlivnit kvalitu extruze t\u00edm, \u017ee m\u011bn\u00ed povrchovou \u00fapravu, naru\u0161uje tok kovu, zvy\u0161uje t\u0159en\u00ed\/opot\u0159eben\u00ed formy a zp\u016fsobuje vady v extrudovan\u00e9m profilu.<\/strong><\/p>\n

      \"Hlin\u00edkov\u00fd
      Hlin\u00edkov\u00fd v\u00fdlisek ve tvaru p\u00edsmene U<\/figcaption><\/figure>\n<\/p>\n

      Vliv na povrchovou \u00fapravu<\/h3>\n

      Pokud se na polotovaru nach\u00e1z\u00ed siln\u00e1 vrstva oxidu nebo nerovnom\u011brn\u00e9 skvrny oxidu, m\u016f\u017ee se oxid p\u0159i pr\u016fchodu kovu matric\u00ed rozlomit nebo m\u00edsty odlou\u010dit. To m\u016f\u017ee na extrudovan\u00e9m profilu zanechat stopy, d\u016flky, \u201c\u0161ed\u00e9 \u010d\u00e1ry\u201d nebo \u201coxidov\u00e9 pruhy\u201d.<\/p>\n

      Vliv na tok kovu a v\u00fdkonnost formy<\/h3>\n

      Kdy\u017e hlin\u00edk prot\u00e9k\u00e1 matric\u00ed, jak\u00fdkoli nekovov\u00fd film (nap\u0159\u00edklad oxid nebo saze) mezi polotovarem a st\u011bnami kontejneru\/p\u00edstu m\u016f\u017ee:<\/p>\n

        \n
      • Zv\u00fd\u0161en\u00ed t\u0159en\u00ed nebo lok\u00e1ln\u00edho odporu, co\u017e vede k vy\u0161\u0161\u00edmu tlaku, zv\u00fd\u0161en\u00ed teploty nebo nerovnom\u011brn\u00e9mu proud\u011bn\u00ed. <\/li>\n
      • Zp\u016fsobuje vm\u011bstky na povrchu v\u00fdstupu formy nebo nepravideln\u00e9 ochlazov\u00e1n\u00ed, a t\u00edm m\u011bn\u00ed mechanick\u00e9 vlastnosti nebo vlastnosti povrchu. <\/li>\n
      • Zkracuj\u00ed \u017eivotnost, proto\u017ee fragmenty oxidu mohou p\u016fsobit jako abrazivn\u00ed \u010d\u00e1stice nebo hork\u00e1 m\u00edsta. <\/li>\n<\/ul>\n

        Vliv na mechanick\u00e9 vlastnosti nebo n\u00e1sledn\u00e9 zpracov\u00e1n\u00ed<\/h3>\n

        Vady zp\u016fsoben\u00e9 oxidov\u00fdmi vrstvami mohou v\u00e9st ke vzniku slab\u00fdch m\u00edst, mikrotrhlin nebo \u0161patn\u00e9 p\u0159ilnavosti ve sva\u0159ovan\u00fdch nebo eloxovan\u00fdch d\u00edlech. Pokud povrch nen\u00ed \u010dist\u00fd, m\u016f\u017ee tak\u00e9 doj\u00edt k selh\u00e1n\u00ed p\u0159ilnavosti p\u0159i n\u00e1sledn\u00e9m povrchov\u00e9m zpracov\u00e1n\u00ed (eloxov\u00e1n\u00ed, pr\u00e1\u0161kov\u00e9 lakov\u00e1n\u00ed) nebo k nerovnom\u011brn\u00e9mu zabarven\u00ed.<\/p>\n

        <\/svg> Tenk\u00e1, rovnom\u011brn\u00e1 vrstva p\u0159\u00edrodn\u00edho oxidu na hlin\u00edku v\u017edy zabra\u0148uje vzniku defekt\u016f p\u0159i extruzi.<\/b>False<\/span><\/p>

        P\u0159irozen\u00e1 tenk\u00e1 vrstva oxidu sice poskytuje ochranu, ale p\u0159i extruzn\u00edch operac\u00edch m\u016f\u017ee nerovnom\u011brn\u00fd nebo nadm\u011brn\u00fd oxidov\u00fd film st\u00e1le zp\u016fsobovat vady v toku nebo povrchov\u00e9 \u00faprav\u011b.<\/p><\/div>
        \n

        <\/svg> Nadm\u011brn\u00fd nebo nerovnom\u011brn\u00fd oxid na povrchu polotovaru zvy\u0161uje riziko vzniku vad v extrudovan\u00e9m hlin\u00edkov\u00e9m profilu.<\/b>Pravda<\/span><\/p>

        Takov\u00e9 filmy mohou naru\u0161ovat tok kovu, zp\u016fsobovat povrchov\u00e9 vady, opot\u0159eben\u00ed formy nebo vm\u011bstky.<\/p><\/div><\/p>\n

        \n

        Jak odstranit oxid p\u0159ed extruz\u00ed?<\/h2>\n

        Vzhledem k rizik\u016fm, \u017ee oxidy mohou ovlivnit kvalitu, je d\u016fle\u017eit\u00e9 p\u0159ipravit prost\u0159ed\u00ed pro polotovary a formy. Zde jsou metody, kroky a \u00favahy, kter\u00e9 uplat\u0148ujeme.<\/p>\n

        Odstran\u011bn\u00ed oxidu (nebo zabr\u00e1n\u011bn\u00ed jeho nadm\u011brn\u00e9mu hromad\u011bn\u00ed) p\u0159ed extruz\u00ed zahrnuje \u010di\u0161t\u011bn\u00ed povrchu polotovaru, kontrolu prost\u0159ed\u00ed pece\/p\u00edstu, pou\u017eit\u00ed vhodn\u00e9ho maziva a n\u011bkdy i chemick\u00e9 o\u0161et\u0159en\u00ed.<\/strong><\/p>\n

        \"Hlin\u00edkov\u00e1
        Hlin\u00edkov\u00e1 vytla\u010dovac\u00ed z\u00e1st\u011bna<\/figcaption><\/figure>\n<\/p>\n

        Kl\u00ed\u010dov\u00e9 kroky p\u0159\u00edpravy<\/h3>\n
          \n
        1. \u010ci\u0161t\u011bn\u00ed polotovar\u016f<\/strong>: P\u0159ed extruz\u00ed odstra\u0148te z povrchu hlin\u00edkov\u00fdch sochor\u016f oleje, oxidy, ne\u010distoty a saze. <\/li>\n
        2. \u010ci\u0161t\u011bn\u00ed povrchu kart\u00e1\u010dem nebo o\u0161et\u0159en\u00ed desmutem<\/strong>: Mechanick\u00e9 kart\u00e1\u010dov\u00e1n\u00ed nebo chemick\u00e9 odstra\u0148ov\u00e1n\u00ed okuj\u00ed pom\u00e1h\u00e1 odstranit siln\u00e9 n\u00e1nosy oxid\u016f. <\/li>\n
        3. \u0158\u00edzen\u00ed oh\u0159evu polotovar\u016f a atmosf\u00e9ry<\/strong>: Sn\u00ed\u017een\u00ed expozice kysl\u00edku pom\u00e1h\u00e1 sn\u00ed\u017eit tlou\u0161\u0165ku oxidu b\u011bhem p\u0159edeh\u0159\u00edv\u00e1n\u00ed. <\/li>\n
        4. Spr\u00e1vn\u00e9 maz\u00e1n\u00ed \/ separa\u010dn\u00ed prost\u0159edek<\/strong>: Zabra\u0148uje ulp\u00edv\u00e1n\u00ed polotovar\u016f a sni\u017euje oxidaci rozhran\u00ed. <\/li>\n
        5. Kontrola p\u0159ed extruz\u00ed<\/strong>: Ujist\u011bte se, \u017ee polotovar neobsahuje okuje, zape\u010denou vrstvu ani viditeln\u00e9 povrchov\u00e9 oxidov\u00e9 nerovnosti.<\/li>\n<\/ol>\n

          \u00davahy ohledn\u011b dod\u00e1vek extrudovan\u00fdch profil\u016f na m\u00edru<\/h3>\n

          P\u0159i dod\u00e1vk\u00e1ch vysoce p\u0159esn\u00fdch profil\u016f (nap\u0159\u00edklad pro architektonick\u00e9 \u00fa\u010dely, sol\u00e1rn\u00ed r\u00e1my nebo osv\u011btlovac\u00ed za\u0159\u00edzen\u00ed) klademe d\u016fraz na n\u00e1sleduj\u00edc\u00ed: \u201cDod\u00e1vejte pros\u00edm \u010dist\u00e9 sochory, po\u017eadujte specifikaci povrchov\u00e9 \u00fapravy a ponechte dostatek \u010dasu na \u0159\u00e1dn\u00e9 p\u0159edb\u011b\u017en\u00e9 \u010di\u0161t\u011bn\u00ed p\u0159ed extruz\u00ed.\u201d V opa\u010dn\u00e9m p\u0159\u00edpad\u011b m\u016f\u017eete ohrozit estetiku povrchu, toleranci nebo n\u00e1slednou povrchovou \u00fapravu.<\/p>\n

          <\/svg> Je nemo\u017en\u00e9 sn\u00ed\u017eit tvorbu oxid\u016f na hlin\u00edkov\u00fdch sochanech p\u0159ed extruz\u00ed.<\/b>False<\/span><\/p>

          Hlin\u00edk sice v\u017edy vytv\u00e1\u0159\u00ed ur\u010dit\u00fd oxid, ale opat\u0159en\u00ed jako \u010di\u0161t\u011bn\u00ed, omezen\u00ed vystaven\u00ed kysl\u00edku a kontrola atmosf\u00e9ry mohou minimalizovat tvorbu \u0161kodliv\u00e9ho oxidu.<\/p><\/div>
          \n

          <\/svg> Pou\u017eit\u00ed dus\u00edku nebo inertn\u00ed atmosf\u00e9ry kolem extruzn\u00ed matrice m\u016f\u017ee pomoci sn\u00ed\u017eit tvorbu oxid\u016f b\u011bhem procesu extruze.<\/b>Pravda<\/span><\/p>

          Literatura o procesu vytla\u010dov\u00e1n\u00ed uv\u00e1d\u00ed, \u017ee inertn\u00ed atmosf\u00e9ra kolem matrice\/n\u00e1doby sni\u017euje tvorbu oxid\u016f na vytla\u010dovan\u00e9m tvaru.<\/p><\/div><\/p>\n

          \n

          Mohou povlaky zabr\u00e1nit oxidaci?<\/h2>\n

          Po extruzi nebo dokonce b\u011bhem dokon\u010dov\u00e1n\u00ed mohou ochrann\u00e9 n\u00e1t\u011bry nebo \u00fapravy zlep\u0161it odolnost proti oxidaci a korozi. To pom\u00e1h\u00e1 nejen vzhledu povrchu, ale tak\u00e9 dlouhodob\u00e9 trvanlivosti.<\/p>\n

          Ano, povlaky a povrchov\u00e9 \u00fapravy mohou zabr\u00e1nit oxidaci nebo ji v\u00fdrazn\u011b zpomalit \u2013 bu\u010f kontrolovan\u00fdm zes\u00edlen\u00edm vrstvy oxidu (nap\u0159\u00edklad eloxov\u00e1n\u00edm), nebo vytvo\u0159en\u00edm bari\u00e9ry mezi hlin\u00edkem a kysl\u00edkem\/vlhkost\u00ed (nap\u0159\u00edklad pr\u00e1\u0161kov\u00fdm lakov\u00e1n\u00edm nebo nat\u00edr\u00e1n\u00edm).<\/strong><\/p>\n

          <\/figure>\n<\/p>\n

          B\u011b\u017en\u00e9 l\u00e9\u010dby<\/h3>\n\n\n\n\n\n\n\n\n
          Metoda nan\u00e1\u0161en\u00ed povlaku<\/th>\nJak to funguje<\/th>\nAplikace<\/th>\n<\/tr>\n<\/thead>\n
          Eloxov\u00e1n\u00ed<\/td>\nZesiluje p\u0159irozenou vrstvu oxidu elektrochemickou metodou<\/td>\nArchitektura, elektronika<\/td>\n<\/tr>\n
          Pr\u00e1\u0161kov\u00e9 lakov\u00e1n\u00ed<\/td>\nAplikuje vrstvu polymerov\u00e9ho pr\u00e1\u0161ku jako bari\u00e9ru proti kysl\u00edku<\/td>\nVenkovn\u00ed profily, pr\u016fmyslov\u00e9 r\u00e1my<\/td>\n<\/tr>\n
          Chrom\u00e1tov\u00fd\/konverzn\u00ed povlak<\/td>\nChemick\u00e1 pasivace, kter\u00e1 zlep\u0161uje odolnost proti korozi<\/td>\nZ\u00e1kladn\u00ed vrstva pro barvy nebo lepidla<\/td>\n<\/tr>\n
          N\u00e1t\u011br barvou<\/td>\nP\u0159id\u00e1v\u00e1 dekorativn\u00ed a funk\u010dn\u00ed polymerov\u00fd vrchn\u00ed n\u00e1t\u011br<\/td>\nProfilov\u00e9 prvky pro interi\u00e9ry<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          \u00da\u010dinnost p\u0159i vytla\u010dov\u00e1n\u00ed<\/h3>\n

          Pro venkovn\u00ed nebo viditeln\u00e9 hlin\u00edkov\u00e9 profily jsou nezbytn\u00e9 povrchov\u00e9 \u00fapravy. Pr\u00e1\u0161kov\u00e9 lakov\u00e1n\u00ed nebo eloxov\u00e1n\u00ed pat\u0159\u00ed mezi nej\u010dast\u011bji pou\u017e\u00edvan\u00e9 povrchov\u00e9 \u00fapravy pro zak\u00e1zkov\u00e9 hlin\u00edkov\u00e9 profily.<\/p>\n

          Praktick\u00e9 \u00favahy<\/h3>\n
            \n
          • Povlaky zvy\u0161uj\u00ed n\u00e1klady a prodlu\u017euj\u00ed dodac\u00ed lh\u016fty. <\/li>\n
          • Povrch mus\u00ed b\u00fdt \u010dist\u00fd a bez oxid\u016f, aby na n\u011bm mohly p\u0159ilnout n\u00e1t\u011bry. <\/li>\n
          • N\u011bkter\u00e9 povrchov\u00e9 \u00fapravy, jako je eloxov\u00e1n\u00ed, zvy\u0161uj\u00ed odolnost proti korozi, ale nezabra\u0148uj\u00ed mechanick\u00e9mu po\u0161kozen\u00ed. <\/li>\n
          • Povlakovan\u00e9 profily vy\u017eaduj\u00ed ochranu b\u011bhem p\u0159epravy a manipulace.<\/li>\n<\/ul>\n

            <\/svg> Nanesen\u00edm pr\u00e1\u0161kov\u00e9ho n\u00e1t\u011bru na extrudovan\u00fd hlin\u00edkov\u00fd profil lze zabr\u00e1nit dal\u0161\u00ed oxidaci povrchu.<\/b>Pravda<\/span><\/p>

            Pr\u00e1\u0161kov\u00e1 barva p\u016fsob\u00ed jako bari\u00e9ra proti kysl\u00edku a vlhkosti, \u010d\u00edm\u017e sni\u017euje oxidaci a korozi hlin\u00edku pod n\u00ed.<\/p><\/div>
            \n

            <\/svg> Po nanesen\u00ed eloxovan\u00e9 oxidov\u00e9 vrstvy ji\u017e nen\u00ed nutn\u00e9 hlin\u00edkovou sou\u010d\u00e1st d\u00e1le oxidovat ani udr\u017eovat.<\/b>False<\/span><\/p>

            A\u010dkoli eloxov\u00e1n\u00ed v\u00fdrazn\u011b zlep\u0161uje odolnost proti korozi, v z\u00e1vislosti na prost\u0159ed\u00ed a po\u0161kozen\u00ed m\u016f\u017ee st\u00e1le doch\u00e1zet k dal\u0161\u00ed oxidaci nebo degradaci povlaku a m\u016f\u017ee b\u00fdt nutn\u00e1 \u00fadr\u017eba.<\/p><\/div><\/p>\n

            \n

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

            Oxid v hlin\u00edkov\u00e9m v\u00fdlisku ozna\u010duje vrstvu oxidu hlinit\u00e9ho, kter\u00e1 se tvo\u0159\u00ed p\u0159irozen\u011b nebo za podm\u00ednek zpracov\u00e1n\u00ed. Zat\u00edmco tenk\u00e1 vrstva oxidu m\u00e1 ochrannou funkci, nadm\u011brn\u00fd nebo nerovnom\u011brn\u00fd oxid m\u016f\u017ee po\u0161kodit kvalitu v\u00fdlisku. V\u010dasn\u00e9 odstran\u011bn\u00ed nebo kontrola oxidu pom\u00e1h\u00e1 zajistit vynikaj\u00edc\u00ed povrchovou \u00fapravu a v\u00fdkon. Nakonec, povlaky jako eloxov\u00e1n\u00ed nebo pr\u00e1\u0161kov\u00e9 lakov\u00e1n\u00ed hraj\u00ed kl\u00ed\u010dovou roli v prevenci oxidace a prodlou\u017een\u00ed \u017eivotnosti.<\/p>","protected":false},"excerpt":{"rendered":"

            Aluminum Extrusion Flood Control Barrier Aluminum Profile When it comes to aluminum extrusion, the word \u201coxide\u201d might sound like a minor detail\u2014but it truly impacts quality, surface finish, and performance. Aluminum oxide is a thin layer of Al\u2082O\u2083 that either forms naturally or when aluminum is exposed to oxygen\u2014this layer plays both protective and problematic […]<\/p>\n","protected":false},"author":6,"featured_media":5980,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"footnotes":""},"categories":[1],"tags":[],"class_list":["post-26448","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\/26448","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=26448"}],"version-history":[{"count":0,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/26448\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media\/5980"}],"wp:attachment":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media?parent=26448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/categories?post=26448"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/tags?post=26448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}